Electricity Saving Tips For Homes And Offices

Difference between Inverter Technology and Power Inverter

By on April 22, 2016

It has been several years since Inverter Air Conditioners (and refrigerators) arrived in India. Initially, people were sceptical of the new technology, but lately, people have started embracing it. No doubt that it is because Inverter Technology Air Conditioners save a huge amount of electricity. However, there is one big confusion (or we may call it a myth) that exists amongst most consumers: that Air Conditioners with Inverter Technology have power backup like a power inverter. For years, we have grown up with a belief that inverters are needed for power backup. And thus arrival of Inverter Technology has added to the confusion. But what exactly is the truth?

What is an Inverter?

In technical (Electrical Engineering) terms, an inverter is an electronic device that converts Direct Current (or DC in short) to Alternating Current (or AC).

Why is it needed?

The electricity that we get in our house from the electricity grid is in AC or Alternating Current. Long back our forefathers decided that it is safer to do electricity distribution in AC than in DC (or Direct Current). And because all the distribution was in Alternating Current the appliances that we use in our house (like air conditioners, refrigerators, fans, etc) all work on Alternating Current.

But when there is a power failure (or no electricity distribution from the grid), we need a power backup (or storage) that can help us run these appliances. For this humans came up with the concept of battery. A battery can store electricity and can be used whenever we need it. However, there is one challenge: A battery can only store DC or Direct Current. But all our appliances use AC (or Alternating Current).

And this is why we need an Inverter (or a device that converts DC to AC) to be put in between the battery and the appliances.

In short, inverter does not store electricity, and it is the battery that stores electricity. Inverter just converts DC to AC.

What is Inverter Technology?

All the confusion with Inverter Technology is because it is called Inverter Technology. Another name for it is Variable Frequency Drive (or VFD in short). The incoming alternating current that we get in India comes at a frequency of 50 Hz. Scientists have designed a variable frequency motor that can change its speed if the frequency of the incoming alternating current is changed. Thus to achieve this variable-frequency a rectifier is used to convert the incoming alternating current (AC) to direct current (DC) and then uses pulse-width modulation in an electrical inverter to produce AC of a desired frequency. This results in significantly better efficiency and electricity savings.

Please note: there is no battery in this setup to store electricity. The drive just has an “Inverter” to convert DC to AC (of desired frequency). This device cannot work if there is no power. It NEEDS power to run. To know more about Inverter Technology Air Conditioners you can read this article on our website:

What is Solar Inverter and can Inverter Technology Air Conditioner work on solar?

This is another question that confuses consumers quite a lot. Solar Inverter is very much like a power inverter explained earlier in this article. The only difference is that the battery is charged using solar power rather than the power from the grid. In a regular inverter, battery is charged using power from the grid. The rest of the functionality of solar inverter is very much like regular power inverter. It takes DC from battery and converts it to AC to be used by the appliance.

Inverter Technology air conditioners work on Alternating Current (or AC), and a solar inverter does provide AC (by converting DC from batteries to AC). And so an Inverter Technology Air Conditioner (or refrigerator) DOES work on solar inverter. In fact, if you want to have greenest possible air conditioner (that works on clean energy, saves electricity and is cheapest to install), then the best solution is to install an Inverter Technology Air Conditioner with a Solar PV system.

Conclusion

Inverter Technology is currently available in Air Conditioners, Refrigerators, Washing Machines and Ceiling Fans. It is very different from Power Inverters and does not have any power backup. A consumer should not assume that these will run even during power cuts.

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184 comments

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1

Dear Abhishek/Team members ,

For my new home of total 5 people could you please suggest a Refrigerator 190L, I am looking for a energy efficient and longevity one.

By the way I have shortlisted two,Please check if it canbe considered

http://www.amazon.in/LG-Direct-Cool-Single-Refrigerator-GL-B201APAN-APAZEBN/dp/B01BYHJKCQ/ref=sr_1_16?ie=UTF8&qid=1499777476&sr=8-16&keywords=LG+190+L+5+Star+Direct-Cool+Single+Door+Refrigerator

http://www.amazon.in/LG-Direct-Cool-Single-Refrigerator-GL-B205KMLN/dp/B00XU9U1DY/ref=pd_sbs_265_7?_encoding=UTF8&psc=1&refRID=JF7N0V48AFYZ9QP64N1K

Thanks and best regards,
Liju...

2

Dear Abhushek,

Thanks for your quick reply..

I need the purple color of the LG one.Is the following will do ,I couldn't find the exact model number of what its mentioned fro that color (my Kitchen is Purple)

http://www.amazon.in/LG-Direct-Cool-Single-Refrigerator-GL-D201APAZ-APAZEBN/dp/B01BYHJMR4/ref=pd_sbs_265_8?_encoding=UTF8&psc=1&refRID=Q6RQVGSXDXYGYKZS3QMS

Also BTW for Single Door Samsung or LG good

3
Abhishek Jain (Mod)

These are all 2015 models from LG. The BEE 5 star rating of 2015 would be BEE 3 star of 2017. The model is good otherwise. There is nothing bad in it. You can certainly go for it. Both Samsung and LG are leading brands in refrigerators (Single Door as well). Both are good. You can go for any one of them.

4
Abhishek Jain (Mod)

Sorry, the Flipkart link I gave for Godrej model is wrong. But the model is a good one.

5
Abhishek Jain (Mod)

Hi Liju,

The models you have selected are good but they are old models and no longer BEE 5 star rated. They are BEE 3 star rated as per current ratings. You can look at these if you want BEE 5 star rated models:

Samsung RR20M1Z2XBS (Amazon Link: http://amzn.to/2s2h5eR )
or LG GL-D201AHAI (Amazon Link: http://amzn.to/2sI40Jn )

If you want slightly bigger refrigerator, then you can also check Godrej RD EDGE PRO 210 PDS INV 5.2 (Flipkart Link: http://fkrt.it/wcq0i!NNNN ) ... this model has inverter technology.

6

GNN Digital Technologies & Solar systems ( Rajasthan )
सोलर लगाओ, बिजली बचाओ..
सब्सिडी पाओ..........(सबसे सस्ता सोलर पैनल) कृषि क्षेत्र और ग्रीड और पेट्रोल पंप पर Subsidy
बिजली के बिल से छुटकारा पाये.. हमारा लक्ष्य 2022 तक हर घर में रोशनी हो...... India Top company... (TATA solar,)
सोलर पैनल ,4°c से ऊर्जा शुरू . सबसे सस्ता सोलर पैनल
गारंटी 25 year , cell life 38years..
SMU system outometic main sply ON OFF . &MPPT
(polycrystalline solar)Lifetime Life solar.) Lifetime no electronic bill
पूरे भारत में कहीं पर भी मंगवाऐ(All India splly) DC to AC covert available..... ,
Contact number-8441001044

7

Hi Abhishek Jain

I am Amar from Bangalore and looking to purchase a UPS for my home, which ups is better solar panel based or only power based also not sure which ups and battery brand, model is better microtek or any other ? in my area some times there will be frequent power cuts in some seasons.

My usage will be one 40" LED TV, setup box, dvr with 4 cameras, 2 fans (optional in summer season), 3 led tube lights (18 watts), one mixer grinder (optional only in emergency). Can a half HP motor pump run by UPS ?

Thanks and regards
Amar

8

GNN Digital Technologies & Solar systems ( Rajasthan )
सोलर लगाओ, बिजली बचाओ..
सब्सिडी पाओ..........(सबसे सस्ता सोलर पैनल) कृषि क्षेत्र और ग्रीड और पेट्रोल पंप पर Subsidy
बिजली के बिल से छुटकारा पाये.. हमारा लक्ष्य 2022 तक हर घर में रोशनी हो...... India Top company... (TATA solar,)
सोलर पैनल ,4°c से ऊर्जा शुरू . सबसे सस्ता सोलर पैनल
गारंटी 25 year , cell life 38years..
SMU system outometic main sply ON OFF . &MPPT
(polycrystalline solar)Lifetime Life solar.) Lifetime no electronic bill
पूरे भारत में कहीं पर भी मंगवाऐ(All India splly) DC to AC covert available..... ,
Contact number-8441001044

9
Abhishek Jain (Mod)

Hi Amar,

You can go for solar if you have good enough shadow free area with good access to sunlight. If you live in a high riser then you cannot put it on walls, it has to be put on the roof only. There again the area should be shadow free throughout the year.

Su-kam, Luminous and Microtek are some of the leading brands in Inverter/UPS.

To explain inverter/battery system, I always use an analogy of vehicle and fuel tank. Inverter is like a vehicle and fuel tank is like battery and electricity stored in battery is like petrol in the tank. And every appliance is like a passenger.

If you have less passengers you can even use a scooter or bike as a vehicle. But if you have more passengers, then you need a car. Similarly if the passengers are obese, you may need a much bigger car or truck to make them travel. Most appliances that have motors are like obese passengers. So if you add a mixer grinder or Motor pump, then the inverter size needed will become huge. Not sure if you would like to go for a huge inverter for occasional use. It would be like having an obese passenger who will occasionally travel and you have to go for a truck just to make that happen.

Finally battery is like petrol tank. The size of petrol tank will depend on the volume of petrol you need to store in it. And the volume of petrol will depend on the distance the passengers have to travel. Similarly size of batteries (and number of batteries) will depend on how long the appliances have to run.

It is not that pump cannot run on UPS. It can, but the system size needed would be huge (and costly of course). Also it will consume lot more electricity as well and thus battery size and number needed will also increase. Let me know if you want to do that and also let me know the backup hours you need and I can suggest you the size.

10

Hi Abhishek Jain

Thanks for your quick response

I live in a ground independent house so no obstruction for sun light, I don't want to use water pump, I require at least 3-4 hours back up. Some of my neighbours say that they are using mixy in 1000VA ups, so just want to know if it possible to use in case when all other appliances are off, that too in emergency not regular usage.

Please suggest me a best brand and model with approx price

11
Abhishek Jain (Mod)

Hi Amar,

These days many inverter/UPS can handle initial surge current that is related to motors. So 1000 VA should be able to handle mixie. Here is your calculation:

ApplianceNumberWattageTotal WattageWh for 4 hrs
TV16060240
STB12525100
DVR4832128
TLs31854216
Mixie1700700 
  Total871684

So total is 871 watts out of which 700 is just for the mixy. And for that 1000 VA should be good enough (you can run other appliances as well with mixy). For Wh calculations I have not included mixy. The rest of the things need 684 Wh for 4 hours. Which means 0.684 units. An 80 Ah or 100 Ah battery should be more than enough for that as 80 Ah can store 0.8 units and 100 Ah can store 1 unit of electricity. If you want to go solar then 250-300 Wp panels should be good enough to generate 1 unit of electricity which will give you more than 4 hrs backup.

You can check the solar home ups systems from Luminous or Sukam:

https://www.luminousindia.com/solar-home-office-solutions.html

http://sukam-solar.com/brainy-eco-solar-home-ups-inverter/

250-300 Wp system should cost about 30-35K or so (may be less as well).

12

I would like to run diakin jtkm50 1.5 ton on solar. Could please tell if a 2.5 kva solar pcu would do or do I need a higher model.

13
Abhishek Jain (Mod)

2.5 kVA solar PCU should be able to run JTKM50.

14

Hi Abhishek,

Thank you for running such a wonderful site and helping us with all our query's. I found more information on your site than i did on the company's site.

I am looking for advise on solar inverter/PCU.
I wanted a 2kva PCU however most of the branded company's have it with 48v.
Due to space issues i can only have 2 batteries.
I was informed by a local dealer to go for Sukam Brainy ECO 1600va 24v with 1000w solar panel. He stated that once the battery's are fully charged, it would run the house on solar (1300va).
I checked about FlinSlim but he stated that people are facing after sale service issues
Just wanted to check with you if the information provided is correct and also if there are any other options for solar PCU with 24v.

Any help would be most appreciated

15
Abhishek Jain (Mod)

Hi Zac,

Firstly let me give you a analogy (which I share with a lot of people) to help you understand solar:

******************************************

1 kWp solar panels can produce 3-4 units of electricity in a day. But that is just energy generated. Running of appliance will depend on the capacity of the inverter and usage in hours. To give you analogy: Units of electricity are just like lts of petrol to be used in car. Batteries are like fuel tank of a car. And inverter is the load carrying capacity of a car. And appliances are like load (or number of people in a car).

Solar panels generate energy (which is equivalent to generating petrol for a car). 1 kWp panel can generate 3-4 units.

Also imagine that you have a car that can carry only 5 people. If you have 10-20 people travelling then you cannot fit them in a car that can carry 5 people (you need a mini bus for the same). Similarly if you have lot of big appliances, you cannot run it using a small inverter.

Also if suppose 3-4 units were equivalent to 10 lts of petrol, the mileage that car can give you will be more than mileage the mini bus can give you. So number of hours that appliances can run will depend on the energy that you will be able to generate.

And finally battery is like petrol tank of a vehicle. It stores petrol or energy. You need bigger petrol tank to store more petrol and smaller to store less. Similarly you need bigger and more batteries to store more energy and less and small to store less.

When you need to size a vehicle, you need to know: number of people that will travel (to get right sized vehicle), their weight (because to cannot fit multiple obese people in a mini bus as well), distance they have to travel (so that you can put petrol accordingly).

Similarly to size solar panel you need to know: Appliances and their wattages (to get right sized inverter), Number of hours that they have to run (to get number of units they will use), accordingly you can size the panels, batteries and inverter.

***************************************

Now batteries are like petrol tank. If you have small tank then you will have to refill it again and again. And in case of solar, it is not easy because electricity will be generated only during the day.

Secondly to run the house, first you need to identify what all appliances are there, what is their load (wattage) and how long do they have to run. Just like before filling in the tank in a car, you need to know how far you need to go so that you can fill petrol accordingly.

So I cannot say if two battery system can run the whole house or not. Also 1600 VA inverter is just like engine. You cannot use 110 CC bike engine to move 5 people. You need a 800 CC car at least. Similarly the VA value depends on what all and the wattages of appliances that you want to run.

Sukam Brainy is a very good solar hybrid inverter. You can certainly go for it if it suffices your needs.

16

Hi Abhishek,

Thank you for the analogy it was really helpful.

In previous post i forgot to mention the appliances that i would like to use on solar power
1 refrigerator LG gl-t372hpzm
1 computer (300w)
1 Fan (90w)
1 cooler (150w)
2 led bulb (10w) each

I would be going for 200 AH X 2 c10 batteries. (if you could please recommend a good brand/battery)
Also can Sukam Brainy ECO 1600 run these appliances via solar once the batteries are full.

Sorry for all the trouble and Thank you for your help

17
Abhishek Jain (Mod)

1600 VA should easily be able to handle this load. I do not think computer would be 300 watts, usually desktops are about 150 watts unless you have a CRT monitor.

You can go for an exide or amaron battery.

18

Sir,
Please help me, I wanna to buy 1.5 ton inverter AC.
Price is not an issue, only Quality and LIFE matters.
Should I go for Samsung, bluestar or daikin.
I shorted some modes please advise which one is better:
1- Samsung model no: AR18MV5HEWK or AR18MV5HETR etc.
2- Bluestar model no: 5CNHW18PAFU
3- LG model no : BSA18PMZD
4- Daikin model no: JTKM50
5- Or Any other model of Voltas?

Thanks in advance sir

19
Abhishek Jain (Mod)

Daikin and Blue Star are premium brands. I would say Daikin JTKM50 or Bluestar 5CNHW18PAFU.

20

I am looking for a inverter tech based refrigerator suitable for a family of 2-3 (like 220 litres and less capacity). Could you suggest me some models. Capital is not an issue, should be the most efficient one, 5 star BEE 2017

21
Abhishek Jain (Mod)

Hi Nitin,

You can look at these:

Samsung RR20M2Z2XBS/NL
LG GL-B201ASLI
LG GL-B201AMHI
LG GL-B201AGHI

These are new models and I do not find them on Amazon or Flipkart. You will have to check these in store. LG and Samsung are the only brands that make inverter tech in single door models. And most of them are either BEE 3 or 4 star rated. Very few of them are 5 star rated. Whirlpool has the best 200 lts models, but then they are not inverter tech.

22

Hi Abhishek,

Can you recommend an ac in the 25k range for a 10×10 room?

23
Abhishek Jain (Mod)

Hi Nachiketa,

The tonnage required may vary depending on your city and room location. If you are in Mumbai or any coastal city then even 0.75 ton would work. If you are in Delhi then you would need 1 ton cooling. If you want a good 1 ton AC that is energy saving as well, then I would say go for Haier 1 ton Split AC (Flipkart Link: http://fkrt.it/Vdj8zTuuuN ). This one would be copper condenser and a good one.

24

Hi Abhishek,

Can you recommend ACs below 25k for 10x10 room?

25
Abhishek Jain (Mod)

Hi Nachiketa,

The tonnage required may vary depending on your city and room location. If you are in Mumbai or any coastal city then even 0.75 ton would work. If you are in Delhi then you would need 1 ton cooling. If you want a good 1 ton AC that is energy saving as well, then I would say go for Haier 1 ton Split AC (Flipkart Link: http://fkrt.it/Vdj8zTuuuN ). This one would be copper condenser and a good one.

26
Amanpreet Singh Chugh

Hi Abhishek,

I am planning to buy Hitachi WAZA3200I 318EAEA. Can you please share your opinion on the same.
Also, do I need to install stabiliser along with it considering it is an inverter model?

27
Abhishek Jain (Mod)

As a brand Hitachi makes very good and robust products that are very energy efficient. The Waza 3200i is one of the most efficient models in BEE 3 star inverter range. If their service is good in your area (based on local feedback), you may certainly go for this model.

28

Hi All,

I want to buy a food processor. Could you suggest some good brand and models in terms of performance ,electricity consumption and after sale service as well as pocket friendly.
Also please suggest whether it is a good , essential and efficient device to buy and use a food processor or not.
This is an urgent requirement so quick response would be appreciated.
Thanks,
Suvojit

29
Abhishek Jain (Mod)

Hi Suvojit,

We currently do not have much research on food processors (it's one of our pending item :) ). So I cannot suggest you much on it. Hopefully we will have something on it soon.

30

Hi All,

I want to buy a refrigerator of 180- 190 liters. Could you suggest some good brand and models in terms of performance ,electricity consumption and after sale service as well as pocket friendly.
This is an urgent requirement so quick response would be appreciated.
Thanks,
Suvojit

31
Abhishek Jain (Mod)

What is your budget for this refrigerator?

32

budget is Rs10000 - 16000

33
abhinav pratap singh

hello sir... thank you for the information you have provided...
Actuallt I need help...
I need to buy a 1.5 ton AC.. my usage is 8-10 hours per day for 4-5 months... lives near haridwar...
Actually I am very confused about should i go for an inverter AC or non inverter...
there is a lot of confusion in this.. someone told me that inverter ACs are of different typs.. so I am confused.. my budget is 40k.. my only requirement is long life AC with electricity savings... please suggest.. should I go for inverter or non inverter and which brand and how much bee rating...
Thanks in advance

34
Abhishek Jain (Mod)

Hi Abhinav,

Usually if it fits in one's budget, we always recommend people to go for inverter AC as they can save more electricity as compared to non inverter AC. And in your budget, you can certainly get an inverter AC of 1.5 ton. If you are looking for copper one which is durable, then you can look at these ACs:

Godrej GSC 18 MINV 3 RWPM (Flipkart Link: http://fkrt.it/4zbS3TuuuN )
Voltas 183V EY (Flipkart Link: http://fkrt.it/4zTJATuuuN )
Voltas 183V IY (Amazon Link: http://amzn.to/2o5oD2s )
Blue Star 3CNHW18NAFU
Daikin FTKH50 (Flipkart Link: http://fkrt.it/mwrVl!NNNN )

If you plan to go for non inverter BEE 5 star rated AC, then you may look at these:

Daikin ATF50

Hitachi RAU518KWD (Amazon Link: http://amzn.to/2ohypfi , Flipkart Link: http://fkrt.it/x3EHM!NNNN )

Carrier Superia 5 Star (Amazon Link: http://amzn.to/2ooznZA , Flipkart Link: http://fkrt.it/x3sRV!NNNN )

35
mohammad abdul saboor

Hi Abhishek, thanks a lot for help so many people with your expertise. I need a help too, I am looking for AC for my two rooms both, 12X10 ft. I want them to be energy saving type so that I dont end up paying huge bills. I also want it to work as a heater in winters. I am looking in Whirlpool brand in particular as I have some good employee discount. So can you please suggest me what AC model and with what capacity should I go with.

36
Abhishek Jain (Mod)

Whirlpool has Fantasia Hot and Cold AC which is not an inverter AC. It's EER for cooling would make it BEE 2 star rated Split AC (non inverter). I would not recommend going for that.

37
Abhishek Jain (Mod)

There are no 1 ton hot and cold AC in whirlpool. Also in general we recommend people to go for hot and cold AC only when there is a usage of heater for a couple of months at least. Otherwise for a week or two, it does not make economic sense in investing in hot and cold ACs. They are expensive and less energy efficient as compared to regular cooling only ACs.

38
mohammad abdul saboor

Thanks Abhishek, I will go with 3D COOL INVERTER 5S, but is 1 ton capacity sufficient for a 12X10 room?

39
Abhishek Jain (Mod)

Sizing depends on city and various other parameters. I would suggest that you use the calculator on this page to get the right size (tonnage): https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

A 1 ton AC would be more than sufficient for 120 sq ft room in Mumbai (I have a 120 sq ft room in mumbai and I use a 0.75 ton inverter AC). But it may fall short by a bit in Delhi where there is more heat.

40

Hi Abhishek, Need your help urgently as offer will close by 9 PM tonight. looking for 2 ton AC. Can you please suggest. my usage will be around 12-14 hrs only for 4-5 months/year. went to local store , he recommended 2 below AC. need your recommendstions
Panasonic - CSUS24SKY-1 (51000 + free installation) Rating - ISEER : 3.67 w/w
BlueStar - 3CNHW24NAFU (51500 + 1500 installation)Rating - 3.95 (ISEER)

41
Abhishek Jain (Mod)

I would suggest that you go for the Blue Star model. It is a great brand and the model is good one.

42

thanks for super sonic response.. :)

43

sir,
i need a hyderabad person number for solar systems

44

Which one is the best among the following 1.5 tonne Inverter acs
1. FTKP50RRV16
2. AR18MV5HETR

45
Abhishek Jain (Mod)

Could not find AR18MV5HETR? Is it the right model no?

46

I am planning to buy 1.5 tonne AC but confused about star rating. As my use of AC will be restricted for 6 hours per day for 4-5 months. Is it ok to buy Inverter AC?
I have selected 3 options of 1.5 tonne Inverter ACs
1. FTKH50RRV16- daikin 1.5 TONNE INVERTER AC
2. GSC 18 FG 6 BNG - 1.5 TONNE INVERTER AC
3. Samsung Inverter technology 1.5 tonne ac
Which option is the best?

47
Abhishek Jain (Mod)

Depends on cost of electricity in your city. Mumbai/Maharashtra has almost Rs 11-12 per unit whereas Goa has Rs 3-4. So the economics vary vastly in these places. I would suggest that you use the calculator on this page: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

We have put in the tariffs, climates, etc of various cities in this calculator and it gives sizing as well as tell you the representative costs of buying various star ratings and also the cost of electricity that you would pay on various star ratings depending on your usage (it also takes in the hours of usage).

Samsung has BEE 3 as well as 5 star rated models. If you just ask me for comparison I would always rate a BEE 5 star rated from Samsung higher than BEE 3 star rated from Daikin. But if you compare similar star rating then I would say go for Daikin as it is a premium brand.

48

You have not commented on GSC 18 FG 6 BNG- godrej 1.5 TONNE INVERTER AC-( It is the only AC available with Refrigerant R290).

49
Abhishek Jain (Mod)

GSC 18 FG 6 BNG is not an inverter AC. It is a non inverter BEE 5 star rated AC with really good energy efficiency (as it has R290). Godrej is the only brand selling R290 ACs current which is something to be proud of. It is a really good AC. Daikin is a premium Japanese brand, Samsung is a good Korean brand and Godrej is one of the top Indian brands. Comparing these 3 is like comparing Toyota, Hyundai and Mahindra in cars. All are good brands, but it truly depends what you want. I think GSC 18 FG 6 BNG is a great AC.

50

Very informative website. Looking for some advice. We are planning to get a 5* 0.7 ton inverter AC. Our actual need is only 0.5 ton for a small 10x5 feet server room/closet. However, this needs to run 24 hours a day, 365 days a year. We are finding it difficult to source 0.7 ton ACs. Also finding 1 ton inverter ACto be much better value than 0.7 ton in most cases. Should we just go with a 5* 1 ton inverter AC? Please advice on best options for energy efficiency and reliable cooling. Thank you.

51
Abhishek Jain (Mod)

Oversizing is not bad in inverter ACs, on the contrary, you can get better energy efficiency (lower electricity consumption) if you slightly oversize the AC. I think 5*1 ton inverter AC is just fine. Inverter can auto adjust to the need of the room.

52

Awesome, thanks for the quick response.

53

Hello Abhishek,

Thanks for providing such detailed and valuable information.I have gone through tools you have provided to identify the suitable AC.

I am looking out for 1.5 Ton AC. Please provide your expert comments for below queries:

My daily usage is around 8 Hrs (Excluding Winter) and in Summer 14 Hrs daily.

1. Please suggest best Inverter AC in 1.5 Ton
2. Please suggest Suitable 5 Star Model as well
3. I have been informed by lot of people that , maintenance of Inverter AC is huge , if something goes wrong then i need to spend at least 10K, is it truth or myth?

Pankaj Naik.

54
Abhishek Jain (Mod)

Hi Pankaj,

Whenever someone asks me for best model, I always give the top model in the list on this page: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html .... and that is not because of brad preference .... I never apply any brand bias in my recommendations as brand bias varies from person to person and it will not be right on my part to favor any specific brand. I would suggest that you look at the list over there and choose a model as per your brand preference.

The statement on inverter AC is part true but there is a solution for it as well. The biggest challenge is with the PCB in inverter ACs. It is expensive if it gets damaged. And it can get damaged due to 2 reasons: 1) Voltage Surge (or sudden voltage increase) 2) Corrosion. There are brands that are providing protection from these factors lately. Like of LG, Samsung, Daikin actively market their voltage protection feature. Blue Star and Voltas have corrosion protection casing for PCBs.

Now you have a reason to worry if: 1) Either your voltage supply is not proper or 2) The environment you live in is quite corrosive (good enough to corrode any electronic product in your house).

There are ways to manage these:

1) For voltage if you get a surge protector or a voltage stabilizer with thermal overload feature, then it can protect your PCB with bad power quality.

2) For corrosion protection: there are several corrosion protection coatings available for electronics in market. PCBs are there in every electronic equipment and corrosion protection sprays are available for PCBs.

Now if you know that if either one of them can cause problems then you can plan accordingly (either buy a brand that provides those features or ask Carrier if they have such protection and if they can give warranty for it).

55

Is it worth paying extra for an LG fridge with powercut EverCool? There are LG inverter fridges at the same capacity cheaper than a LG fridge with powercut EverCool.Perhaps you can switch off the fridge at night since you have powercut EverCool thereby reducing the electricity consumption in the long run compared to a LG fridge with just inveter? Assume they are both size has the same start rating for comparison purposes

56

sorry to disturb you I want to know about you with finasteride, please tell me, I took it for 5 week

57
Abhishek Jain (Mod)

Powercut EverCool is good when you have regular power cuts. Otherwise it is of no use. It is better to go for fridge with inverter in that case.

58

say if you plan to switch off the fridge at night to save energy, does powercut EverCool give you an edge over fridge with inverter in that case?

59
Abhishek Jain (Mod)

Difficult to quantify as there is no data to make an objective comparison. But my personal belief is that inverter fridge (without powercut Evercool) should still be better.

60

PLATINUM Series
3500 Off-Grid Solar Hybrid Inverter
PLATINUM Series Solar Hybrid Inverters are ideal for powering small buildings/community centers by using Solar Power during power cuts. PLATINUM Inverters use SmartSwitch to intelligently switch between solar power and grid electricity depending on the availability of sun.
High efficiency solar panel for fast charging
Equipped with deep discharge and overcharge protection
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Saves money by using solar energy to charge batteries and to power loads
Digital display gives real time information on solar power generation, grid availability and battery level
Can power 1 ton Air Conditioner
Specifications
Panel: 2000W-3000W Solar Panel
Output: 3500VA Pure Sine Wave AC
Battery Capacity: 200Ah - 300Ah @48V
For Enquery please call us at Aura Energy [email protected] 8697000196
for Distributorship and Channel Partner and Dealership may apply with us

61

PLATINUM+ Series
5000VA Off-Grid Solar Hybrid Inverter
PLATINUM+ Series Solar Hybrid Inverters are ideal for powering 4 BHK homes or offices by using Solar Power during power cuts. PLATINUM+ Inverters use SmartSwitch to intelligently switch between solar power and grid electricity depending on the availability of sun.
High efficiency solar panel for fast charging
Equipped with deep discharge and overcharge protection
SmartSwitch technology that switches between grid electricity and solar energy seamlessly
Saves money by using solar energy to charge batteries and to power loads
Digital display gives real time information on solar power generation, grid availability and battery level
Can power 1.5 ton Air Conditioner
Specifications
Panel: 3000W-3750W Solar Panel
Output: 5000VA Pure Sine Wave AC
Battery Capacity: 240Ah - 300Ah @72V
For Enquery please call us at Aura Energy [email protected] 8697000196
for Distributorship and Channel Partner and Dealership may apply with us

62

GOLD Series
1500VA Off-Grid Solar Hybrid Inverter
GOLD Series Solar Hybrid Inverters are ideal for powering 4 BHK homes or offices by using Solar Power during power cuts. GOLD Inverters use SmartSwitch to intelligently switch between solar power and grid electricity depending on the availability of sun.
High efficiency solar panel for fast charging
Equipped with deep discharge and overcharge protection
SmartSwitch technology that switches between grid electricity and solar energy seamlessly
Saves money by using solar energy to charge batteries and to power loads
Digital display gives real time information on solar power generation, grid availability and battery level
Specifications
Panel: 600W-1000W Solar Panel
Output: 1500VA Pure Sine Wave AC
Battery Capacity: 150Ah – 200Ah @24V
For Enquery please call us at Aura Energy [email protected] 8697000196
for Distributorship and Channel Partner and Dealership may apply with us

63

SILVER Series
800VA Off-Grid Solar Hybrid Inverter
SILVER Series Solar Hybrid Inverters are ideal for powering 2 BHK/3 BHK homes by using Solar Power during power cuts. SILVER Inverters use SmartSwitch to intelligently switch between solar power and grid electricity depending on the availability of sun.
High efficiency solar panel for fast charging
Equipped with deep discharge and overcharge protection
SmartSwitch technology that switches between grid electricity and solar energy seamlessly
Saves money by using solar energy to charge batteries and to power loads
Digital display gives real time information on solar power generation, grid availability and battery level
Specifications
Panel: 300W-600W Solar Panel
Output: 800VA Pure Sine Wave AC
Battery Capacity: 150Ah – 200Ah @12V
For Enquery please call us at Aura Energy [email protected] 8697000196
for Distributorship and Channel Partner and Dealership may apply with us

64

BLUE Series
300VA Off-Grid Solar Hybrid Inverter
BLUE Series Solar Hybrid Inverters are ideal for powering 1 BHK/2 BHK homes by using Solar Power during power cuts. BLUE Series Inverters provide an affordable alternate for homes by powering basic devices such as LEDs, CFLs, small screen TVs, cable boxes etc.
High efficiency solar panel for fast charging
Equipped with deep discharge and overcharge protection
Saves money by using solar energy to charge batteries and to power loads
Digital display gives real time information on solar power generation, grid availability and battery level
Specifications
Panel: 100W-150W Solar Panel
Output: 300VA 220V AC
Battery Capacity: 75Ah to 100Ah @ 12V

For Enquery please call us at Aura Energy [email protected] 8697000196
for Distributorship and Channel Partner and Dealership may apply with us

65

Hello Abhishek..

Generally in the summer season retailers hike their air conditioner
prices because of the increased demand. This is why buying air
conditioners in the off season will be cheaper...

Is it true.. ??

66
Abhishek Jain (Mod)

I haven't seen that happen personally.

67

Hello Abhishek..

if a non inverter ac runs for 8hrs at night with a desire temp (for example 26 degree)... how may hours the compressor will run.. i know its hard to say..

but in your experience.. can say an approx percentage of running time of the compressor..?

because...if a 1.5 ton inverter runs (obviously non stop) at its lowest possible watt for 8hrs.... for example 800 watt for 8 hrs will be equal if 1600 watt non-inverter runs 8 hrs with 50% of cut-off time.. means the non inverter compressor runs at full watt for 4 hrs.. in this situation power consumption will be same..

im looking for a 1.5 inverter instead of 3 star.. need to know will it be ok to spend more money on inverter..

hope.. now you know what im looking for.. :)
Thanks..

68
Abhishek Jain (Mod)

Hi,

The lowest possible watt for 1.5 ton inverter AC is not 800 watts. It would be about 200 watts. And to give you an example, my own room of 130 sq ft in mumbai has 0.75 ton inverter AC and I keep it at 26 at night and I have seen it running mostly at 20% capacity or even lower at times.

Now to evaluate inverter and non inverter AC I would suggest you to use the calculator on this page: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

There are lot of assumptions to be done and all are built into the calculator. Also 50% cutoff time for non inverter is too high. If a non inverter AC cuts off for 50% of the time, it is highly oversized. Typically 75-80% on time is considered ideal (or 20-25% cutoff time).

69

Hello Abhishek.. Your answer helped me a lot... Thanks a ton.. no.. 2.5 ton.. lol..
this question came in my mind because the the catalog of Daikin 1.5 ton ATKP's (this is what in my list to purchase) operating watt shows 1445 (710~1750)... so i thought.. 1445 is the average watt.. 710 is the minimum and 1750 is the maximum.. and it wont go below 710... that's why i mentioned that the minimum watt is 800... from you answer now understand it can go below 710... upto 200.. its really good.... but is there any reason or what they mean mentioning operating watt.. 1445 (710~1750) for ATKP model and 1315 (370~1700) for ATMK model..??

Thanks for your help once again....

70
Abhishek Jain (Mod)

The minimum for ATKP is 580 as mentioned on its specs: http://www.daikinindia.com/system/files_force/Specification%20product%20pdf/ATKP_3.pdf?download=1&download=1

By the way if I have to share my experience, then all I can say is that when I start my AC it starts at 120% or 100% or 80% depending on the heat outside (I mostly keep temperature at 26, 27 or 28). I have a panasonic which shows me % capacity at which it is running. In peak summers it typically starts at 120% (as I also start it at 26). In Oct it was starting at 80% as well (we were keeping it at 28). It starts coming down as the room cools down. Within an hour it runs at 40-60%. At night I have seen it run at 20% mostly ... in fact I have also seen it run at 0% (which means compressor is off because there is no heat to remove). And power consumption is quite low when it runs at 20% for most of the time during night. Now in my case temperature in mumbai is not very high and thus amount of heat to be removed is less. Also the cooling capacity is quite small (just 0.75 ton). If you live in a city which is hot then for a small AC it might run at higher capacity. But if you put a big AC then it will run at lower capacity. So the 1.5 ton AC that you have chosen will run at minimum wattage of 580 watts. If the heat in the room is less then it may switch off the compressor completely as well (just like 0% in my case). But if heat is extremely high then it will run at 120% or 1750 watts. At 100% capacity (or at 1.5 ton) it will consume 1445 watts. But if the AC is right sized or bigger then it will hardly run at 100% for a few minutes and it will start coming down.

71

Thanks for the reply..

yes you are right and it says min watt is 580 and max is 1750 in the specification.. but if you see in brochure it shows.. 1445 (710-1750) for ATKP as i mentioned earlier.. find the attached image.. I don't know which one is correct.. :(

72
Abhishek Jain (Mod)

710 sounds on a higher side. Typically 1.5 ton inverter ACs have lower power consumption. I would suggest to check with the dealer.

73

Hello Abishek..

please let me know if you have any best alternative for Daikin 1.5 Inverter AT/DT/FTKP50RRV16...?? Also the tonnage calculator shows 1.2 Inverter is enough for my room and usage pattern.. is that ok to go for 1.5 inverter..?? will it help for power consumption.. ?

Thanks of your help..

74
Abhishek Jain (Mod)

In case of Inverter AC oversizing is not bad. In fact it is better because at lower capacity inverter ACs are much more efficient. But one should not oversize too much as then in that case the lowest possible capacity the AC can run at is higher. So you can certainly go for 1.5 ton inverter AC.

Daikin is a good brand.

75

sure..will check that.. thanks a lot for all your help..

76

Can I know Daikinftkp35qrv16 1 ton inverter has copper fins or blue fins Condenser?

77
Abhishek Jain (Mod)

I would suggest to confirm the same from the dealer. If he says it is alloy condenser or parallel flow or multi flow condenser, then it is not copper.

78

Dear Bijli Bachao Team,

Kindly help me to buy suitable Inverter A/c with best power saving technology and with in better price range.
Please find following details for reference.

1. Location : Virar, Taluka Palghar ,near Mumbai

2. I'm staying at third floor,above is the terrace,exposed to direct sun light. Room Size Length 10ft x width 16ft and room is 8ft high.
3. which stabilizer should I opt for ?
4.A/c should have anti bacterial and dust removal feature.
5.A/c will be used during night hours.
6. Assuming a budget of around INR 40k, Which brand would give value for money and power saving.
7.Which brand gives good service after sale ,if at all any issues,because chasing service people is big headache and waste of time.
8. Kindly suggest if any other latest A/c are available in market with advance technology and having above min features and price range.

With Best Regards,
Vijay

79

Dear Sir .

I would like to know the diffrenec between Single Inverter ACs and Dual Inverter ACs . Recently i saw online companies like LG and Panasonic launched Dual Inverter Split AC Models .i would like to know whether Dual Inverter AC Models more Energy efficient than Single Inverter AC Models .

Also which Brand is better in terms of Highest Energy Saving in Dual Inverter Technology ACs with Maximum Features .

Also is sharp planning to launch ACs again in india with similar Kind of technology .

Thanks & Regards

D K

80

We have installed a UPS of make Ecovolt 1050 of Luminous India recently (https://luminousindia.com/assets/downloads/homeups-eco-volt.pdf). After the installation our daily electricity consumption has increased by 2 units. Does the UPS take this much power ? Or is there anything wrong in the circuit?

81
Abhishek Jain (Mod)

Have you compared the data with the days when you have a power cut? Did you have inverter before this?

Power Inverters do not generate electricity. They store it in batteries. They do have losses, and their efficiencies are in the range of 85-90%.

If you did not have inverter earlier, you were not using electricity when there was a power cut. Now you are storing that electricity in batteries and using it when there is a power cut. The electricity has to come from the grid. Which is what you may be seeing on your meter.

82

sir,
i want to purchase AC for my room which size is 15*10*10, city ahmedabad, direct sunlight is there but thermocol ceiling is there
please suggest me which one is best Inverter or fixed

please advise me 3.6 COP is best or 4.75 ISEER is best. ( this is mentioned in Bluestar inverter ac-4.75 ISEER and daikin fixed speed AC-3.6 COP 1.5 tonn)

also tell me the difference between COP and ISEER.
what is CFM, and effect of CFM.

Thanks in advance
Hitesh

83

Thanks in seeing your valuable answers to everyone's queries professionally. Please help me with my below queries as need to purchase many new electrical items for my newly constructed 3 bhk. Am a resident of Bangalore ITPL, Whitefield. The needed items are :
Ceiling fans 4 nos.
Exhaust fans 4 nos.
Geyser (6/10 Ltr) 2 nos.
LED Lights and needed accessories for a 3 bhk flat. Decoration light for main hall.
Fridge (200 Ltr) 1 no.
Could you please advise on the best recommendable models and references, if any. Thanks

84
Abhishek Jain (Mod)

Well difficult to give you answers to too many things without knowing specifics. However I will try to tell a few things that I can comment on easily:

1) Ceiling Fans: If you want highly energy efficient fan then I would suggest going for Superfan (http://www.superfan.in). They are also available on Amazon : http://amzn.to/29fGRUs .... Highly energy efficient with good air delivery. You do not need a regulator with this fan as it works on remote control (so you can get extra spot on your plug points to put something else). It also has a non remote operation procedure which you can understand from their website. Not a big company but the fans are good. If you want a bigger brand then you may look at some models on this link: http://www.bijlibachao.com/top-ten-appliances/best-ceiling-fan-khaitan-havells-usha-crompton-greaves-orient-in-india-electricity-consumption.html

2) Exhaust Fans: There are no energy efficiency standards for exhaust fans. And when there are no standards, manufacturers do not provide any data to compare :) .... So go for any reputed brand (Havells, CG, Orient, etc).

3) If you plan to put shower then go for a 15 lts water heater, else 10 lts should be good (considering it is cold in winters in B'lore). AO Smith, Racold, Havells, Ferolli, Morphy Richards, Bajaj are some good brands. You can look at list of top most efficient models on this link: http://www.bijlibachao.com/top-ten-appliances/best-water-heaters-geysers-brand-in-india-by-standing-loss-and-size.html

4) Number and wattage of LED lights depends on the size of the rooms and the kind of activities that need to be done in the room. Also it also matters as to how you want to decorate the room (as there are regular LED lights as well as decorative lights).

5) Are you looking for single door (direct cool) or frost free (double door) refrigerator? You can check some top models on this link: http://www.bijlibachao.com/top-ten-appliances/what-are-best-refrigerator-fridge-lg-samsung-whirlpool-india-buying-guide.html

85

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86

Hi Abhishek, i live in Mumbai and using Whirlpool 1.5 ton 5 Star 3DXtreme Cool model. Just want to know how much of the power it consumes per hour.
Thanks
Shiv

87
Abhishek Jain (Mod)

Depends on multiple factors that impact electricity consumption as listed on this page: http://www.bijlibachao.com/air-conditioners/things-that-impact-electricity-consumption-in-air-conditioners.html

At a very high level it would consume about 1 unit of electricity per hour.

88

Please help me out with this

I have 2 acs one is of 1 ton(3 star) and other is 1.5 ton(5 star) inverter ac and other usual household appliances. I have a 3 kilowatt meter installed at my house(single phase). Someone told me to upgrade my meter from 3 to 6 kilowatt or I will have to face heavy penalties by the electricity department. I am a resident of Meerut, Uttarpradesh.

Please suggest what should be done asap. Thanks

89

Hi Abhishek
Seems you have been answering to everyone's queries patiently.
Please help me out with this
I have 2 acs one is of 1 ton(3 star) and other is 1.5 ton(5 star) inverter ac and other usual household appliances. I have a 3 kilowatt meter installed at my house(single phase). Someone told me to upgrade my meter from 3 to 6 kilowatt or I will have to face heavy penalties by the electricity department. I am a resident of Meerut, Uttarpradesh.
Please suggest what should be done asap. Thanks

90
Abhishek Jain (Mod)

UP does put penalty on increasing the load and with two ACs, your load will certainly be more than 3 kW. You can either directly increase it to 6 kW. But if you want to be more economically prudent, then I would suggest that you look at your electricity bill. The distribution companies mention sanctioned load and actual load for a month on the electricity bill. If the actual load is more than sanctioned, then there is penalty. But then looking at actual load, you can get the load increased.

There is associated cost with extra load increase, so if you look at the bill and if it is 4 kW, then you may not need 6 kW, you can just live with 4 kW. But if it is 7 kW, then you will get penalty even when you increase to 6 kW. And that is why I said, look at your electricity bill and take action accordingly.

91

Thank you so much Abhishek.... I got it.

92

hello
i've got a query related to voltage fluctuation.
comes summer and there's an ancient problem start creeping in VOLT FLUCtUATION.

problems i faced:

1) wire got heat up(often melts and short circuit, though wiring is bit old but changing wiring will cost hell lot of savings)
2) AC Compressor falis to turn on or turn off after 15mins.(using 2ac)
3) oven element fused due this
please suggest some ways to minimize this voltage fluctuation .
with cost benifit analysis
i heard about power saver is it really effecrice in volt fluct..
(not reducing bills)if yes then which one to buy and how to install and their cost analysis& if no then what are other measures to take ??
@abhishekjain

timely reply will be appreciated.

93
Abhishek Jain (Mod)

1) Never think of installing voltage stabilizer for your house because it will cost you capital as well as running cost in terms of the energy losses. Heating of those wire which connects AC may take place if it is not designed to carry that much of load. When wire unable to carry the equivalent current, it heats up and if the insulation is not rated it melt resulting in short circuit. The wires other than AC shall not be a problem. In that case, change the cable wiring for ACs as there is no short cut for it.

2) AC and fridge shall be installed with voltage stabilizer. Voltage fluctuation generally affects working of AC and refrigerator as other items are generally not affected.

3) You said that AC compressor takes 15 minutes to start. The reason may be due to inbuilt time delay and delay causes by the compressor temperature not coming down. If the temperature of the compressor is high, than it will not start unless the temperature goes down below the permissible level. Please check, if the direct sun light is falling on the body of the AC or the side where the compressor is installed is having adequate ventilation margin. These are the main causes of the compressor starting late making you sweating and cursing for high temperature.

4) I understand this problem may be experienced during mid day hot summer.

94
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95
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96
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97
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98
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100
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101
Celes Fernandes

Dear Abishek,

For LG. refrigerator freezer cum refrigerator, is stabilizer required as I heard it has inbuilt and no need for stablizer..Awaiting you feedback.
Regards

102
Abhishek Jain (Mod)

Most modern refrigerator do not need a stabilizer. I have seen that all new models from LG do not need stabilizer.

103
Celes Fernandes

Hi,

Thank you for answering my query reg. refrigerator.

Regards

104

Dear sir,
looking for a split ac and as per site calculator 1 ton inverter or 5 star 1.5 ton

Living in Anand, Gujarat
Temperature in summer between 40 to 45
Vistit Some showrooms They suggest me
1.5ton 5 star and also tell about daikin that there new models are not imported but manufactured in india so quality wise not good as imported is it true?

Want to buy energy efficiant & durable a/c

Room Size 132 Sq.ft 4 persons, no direct sunlight on roof, Sunlight in West

If I go for 1.5ton Inverter A/c be a Right discission or go for 1 ton inverter ac i want to go for 1 ton

Which brand & Model should I buy?

105
Abhishek Jain (Mod)

Firstly I do not see any problem in models manufactured in India, but then it is your choice and comfort.

You can look at these 1.5 ton ACs:

Godrej GSC 18 FG 8 MOG
Hitachi RAU518MWD
Samsung AR18JC5ESLZNNA
Whirlpool 3DCOOL XTREME HD 5S (1.5 T)
Mitsubishi Electric MS-GL18VF

106

I want to know your opinion about Indian manufacturing ac's of daikin.

i am looking for daikin 1 ton inverter ac is it ok?

107

i am looking for daikin 1 ton inverter FTKP35QRV16) is it ok?

108
Abhishek Jain (Mod)

It is a very good AC. You can certainly go for it.

109

Thanks for your guidance, i bought ftkp35qrv16 fitting done on 30-May, Can i put it on 30 degree temperature?

110
Abhishek Jain (Mod)

You surely can if you find it comfortable at that temperature.

111

If i set 28 degree at 9:30 PM that time indoor temperature about 31 degree, kindly suggest right temperature to set for compressor.

112

If i set 28 degree (Which is comfort for me) in night at that time indoor temperature about 31 degree, kindly suggest right temperature to set for compressor. I think if compressor start & stop frequently effect bad on compressor life. So how much deference needed between room temperature and set temperature in ac. I have inverter AC of daiken ftkp series.

113
Abhishek Jain (Mod)

Inverter AC will not start and stop frequently. 3 degrees is a good difference. You can keep it at 28.

114
Abhishek Jain (Mod)

The compressor will not run at all if your outdoor temperature is 27 and you set the thermostat to 30. Which will save a lot of electricity. So as I said, if you feel comfortable then keep it at 30.

115

i am looking for a split ac

and i came across two recently launched models of videocon:

1) 1.5 Ton Aryabot AC Model No: VSX55.WV MRP Rs 37 100/-

2)1.5 Ton Penta Inverter AC Model No: VSX57.WV MRP Rs 49 000

can you please review them

since on paper aryabot looking more attractive (going by features)

and i have no idea what is all about that "penta inverter ac"(how it is different from normal inverter ac ?)

can you please review(in detail) and suggest what will be the right choice

since priority is efficient electricity bill ..

timely reply will be appreciated.. :)

thanks

116
Celes Fernandes

Hi Abhishek,

During monsoon we face lot of electrical problems in Goa and so we thought of an Inverter which we discussed with our electrician. He says that different wiring has to be done for the house if Inverter is installed. Since we dont know much about it could you enlighten us with your expertise whether new wiring is required in case we install an inverter.

Today morning we had a shut down from 8. am. to 4 p.m. reg. feeder. and when the power was restored we have nearly about 3 or 4 power trips after they restored the power. We are afraid that our fridge or t.v. will get affected but electrical department does not bother about this frequent trips in less than half and hour after restoration.

Regards

Celes Fernandes

117
Celes Fernandes

Hi,

Thanks for your tip reg. refrigerator and t.v.

Regards

Celes

118
Abhishek Jain (Mod)

Hello Mr Fernandes,

Did he tell you the reason why new wiring needs to be done? Is the wiring bad in general? If the wiring is good enough then there should be no reason to change it just for installing inverter.

Also TV can be protected using a good surge protector. TV can get damaged only when there are short circuits.

For refrigerator, if it is not inverter technology compressor, then it is better to have a voltage stabilizer with it. If it is inverter technology compressor then a surge protector would be good enough. However, most modern refrigerators have a stabilizer free operation (they have a high input voltage range of say 115V to 260V).

119
Celes Fernandes

Hi Abhishek,

No reason was given for new wiring as last 1 years back I have got done new wiring.
Also I have a refrigerator WHIRLPOOL 3 STAR BUT WE have put a stablizer as earlier due to power fluctuations our fridge, t.v. got spoiled and was forced to buy new one so we have installed a stablizer as informed that stablizer is good even if it not requried for refrigerator.

How to know if the refrigeration has inverter technology compressor. Kindly inform us.

Regards

Celes

120
Abhishek Jain (Mod)

Whirlpool does not have inverter technology compressor fridges. So yours won't be one. Better to put stabilizer for refrigerator. Make sure you have a surge protector for TV.

121

hi abhishek, i want to know about the samsung smart digital inverter refrigerator.there is nothing details in their web site.I knew that there is a vfd technology inside it.but the shop keeper told me that during power failure it can run through a 900va domestic inverter by consuming very less energy.and switch to main automatically with its full load when main power supply will come.
but he can't explain that how the refrigerator sense whether it is a main or inverter supply to run in full load or less load?????????his ans. was the fluctuation of power supply during change over from main to inverter or from inverter to main.but in many case there is also some fluctuation in main power supply too.
then what happen in that case??????

122
Abhishek Jain (Mod)

Hi Jaydeb,

Digital Smart Inverter or Inverter Technology is variable frequency drive or VFD. We have explained it in detail on this link:

http://www.bijlibachao.com/air-conditioners/air-conditioners-with-inverter-technology-can-help-save-electricity-ac-india.html

and

http://www.bijlibachao.com/refrigerators/refrigerators-with-inverter-technology-can-help-save-electricity.html

And his understanding is right. An inverter AC can easily run on 900VA inverter because it does not have high initial inrush current. Compressors of regular refrigerators take 3-4 times more current than steady state current because of which it needs bigger sized inverters. And they have an on-off operating pattern which is inefficient. But Inverter Technology compressor takes much less current to star and its steady state current is also low (as explained in the links. Also if the input power is low (as in case of voltage fluctuations), it will draw lower current (unlike a regular motor) because it is a VFD. And it will run at lower speed (just because voltage is low, and current is low). and thus cool less (in case voltage is low).

123

Hi abhishek i recently bought hitachi 3200i 3star 1.5 ton inverter ac and it consume about 5 units in 5 hour at day time and my terrce direct face sunlight and at night it consume about 0.7 to 0.8 unit per hour i kept ac at 26°-28° degree is this ac is good??

124
Abhishek Jain (Mod)

Hi Vaibhav,

It sounds reasonable. You can try reducing the heat from the terrace by using white sun reflecting paint on the terrace (or even put white chuna on the terrace). That will reduce your electricity bills.

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