[Aroy]

Originally Posted by 1.2GT3GT

Thank you, I will start by checking the heat retardant ratings.

Here are some links that may interest you

https://www.habia.com/en/knowledge-h...he-difference/

https://www.finolex.com/ProductPage/SubCat/House-Wires

https://www.plazacables.com/product-...php?product=24

[meerkat]

Originally Posted by srini1785

In addition to what has already been mentioned by many BHPans, i Just want to add that US generally uses a 110V , 60HZ system while we use a 230V , 50HZ system. While a transformer can step down volts, it can not change the Frequency. So there will be some kind of humming noise when you use it with a transformer.

Transformers are prone to humming on their own (even without load) due to magnetostriction and other reasons. I am puzzled: how does frequency difference cause hum ?!

Frequency difference can, of course, affect clock and motor speeds and such. The 60 Hz appliance the OP is planning to use, would run slower at 50 Hz if it has a motor. Whether that would still be within acceptable limits, only he can decide.
.

[srini1785]

Originally Posted by meerkat

Transformers are prone to humming on their own (even without load) due to magnetostriction and other reasons. I am puzzled: how does frequency difference cause hum ?!

Frequency difference can, of course, affect clock and motor speeds and such. The 60 Hz appliance the OP is planning to use, would run slower at 50 Hz if it has a motor. Whether that would still be within acceptable limits, only he can decide.
.

The transformer will work fine. It is the device that might be affected. The capacitive and inductive resistance (or reactance) are related to the frequency.

Capacitive resistance = 1/ C*2*Pi*f, Inductive resistance = L*2*Pi*f (f is frequency)

So if this device (of which i am not aware fully) runs on AC then the internal device resistances are affected. The increased hum will be from the device.

[itwasntme]

Originally Posted by Prowler

I used to source Shaw transformers for US made microwave ovens a long time ago.

Originally Posted by rajesh1868

Any recommendation for a good BLDC ceiling fan? Had seen some earlier posts on issues with Atomberg. Is it still good? anything to watch out for?

We have 11 Atomberg ceiling / wall fans with a mix of IoT and remote controlled ones, and they are pretty reliable and classy too. Only thing to note is that the 1200mm blades don’t have a great throw. The 1400s are better.

Originally Posted by ads11

Turns out it's a bit of a mixed bag..
Still, well done you for even thinking of composting. If that is what you're doing, composting food waste?

Food only but ditched the plan now.

Originally Posted by meerkat

You should be able to source one easily in Bangalore
.

Originally Posted by Aroy

I suggest that you get the second type. Just be sure that there are two coils and not the run of the mill auto transformer type.

Originally Posted by srini1785

While a transformer can step down volts, it can not change the Frequency. So there will be some kind of humming noise when you use it with a transformer.

Originally Posted by meerkat

Whether that would still be within acceptable limits, only he can decide.
.

Originally Posted by srini1785

The increased hum will be from the device.

Chickened out of the plan for now. Many many thanks to all of you for the tremendous input though!

[ads11]

Originally Posted by itwasntme

Food only but ditched the plan now.
Chickened out of the plan for now. Many many thanks to all of you for the tremendous input though!

Was gonna say, if it's food waste only you want to deal with and want minimal hassle there might be a solution.

Do you have access to an outdoor garden? We've gone for a low effort solar solution. A green cone:https://greatgreensystems.com/produc...5s-y49FpJbMS9R. Bit of a pain needing to dig a deep enough pit to get the basket bit sufficiently low enough that it becomes harder for vermin to get at it. It's great in that it can pretty much take all food waste, including fish and meat bones. I'm sure there must be similar solutions available in India. If not, it's really simple as a contraption. ABS plastic basket that uses some washers to connect to the above ground plastic cone, it too made of plastic, and then that's it. Got a little twist locking latch for the lid.

[meerkat]

Originally Posted by srini1785

The transformer will work fine. It is the device that might be affected. The capacitive and inductive resistance (or reactance) are related to the frequency.

Capacitive resistance = 1/ C*2*Pi*f, Inductive resistance = L*2*Pi*f (f is frequency)

So if this device (of which i am not aware fully) runs on AC then the internal device resistances are affected. The increased hum will be from the device.

Sure, reactance is frequency dependant. But something is still missing for me here: how does frequency difference cause hum? What's the mechanism here that gives rise to humming? And how is that related to frequency difference, so we know 50 Hz will cause increased hum compared to 60 Hz (and not reduced hum)?!
.

[srini1785]

Originally Posted by meerkat

Sure, reactance is frequency dependant. But something is still missing for me here: how does frequency difference cause hum? What's the mechanism here that gives rise to humming? And how is that related to frequency difference, so we know 50 Hz will cause increased hum compared to 60 Hz (and not reduced hum)?!
.

I did some calculations to drive home the point. In the attached excel sheet you can find a sample power factor calculations for arbitrary inductance and capacitance values. As you will be aware, a PF of 1 or close is preferred in AC circuits. In general, more the inductance lousier the circuit since it has a PF of 0.

In the attached excel sheet, you will find that the a decrease in Frequency, keeping the terminal volts the same, results in a deterioration of the PF. However if you change the capacitance to say 250 Mic Farads then the situation drastically changes and the circuit actually has a better power factor. This demonstrates an important feature of AC machinery, which is why we sometimes add capacitor banks to improve the PF.

Frankly I have no idea how this device works but a description in the link says this,

"Composting is a biological process that involves microbes decomposing organic materials, whereas appliances like the Lomi or FoodCycler simply grind down and dehydrate food scraps using blender-like blades and electricity-generated heat."

which makes me suspect that the device uses an electrical motor of some sort along with heating coils, both of which are known inductive loads.

Again, i am not saying that device will go 'puff' when connected to a step down transformer (of suitable KVA) its just that the nature of the device is suspect and we are taking about a device which is rated for 500W and works for 4-10 hours per cycle. The 'hum' that i am referring to is not the pitch of a 50 HZ or 60 Hz wave, its the sluggish and slow running of a device with poor PF.

[vsrivatsa]

Hello Folks,

Looking to buy a new Refrigerator. Did some window shopping in Croma and a few other stores and we have shortlisted some models from various brands:

1. Intellifresh 467L 2 Star Convertible Frost Free Double-Door Refrigerator
https://www.whirlpoolindia.com/intel...r/p?skuId=1121

2. LG 466L 2-Star Double Door Refrigerator with Smart Inverter Compressor
https://www.lg.com/in/refrigerators/...s/gl-t492mpzy/

3. Bosch Series 4 free-standing fridge-freezer with freezer at top
https://www.bosch-home.in/productlis...lebox=manuals/

Wife liked the Whirpool model the best but browsing thru some history of this thread, I see some people have mentioned that Whirlpool Support is questionable. Has this changed in recent times or is it still an issue?

Bosch is a smaller one but the Layout looked good and hence on the shortlist but we will mostly have to decide between the Whirlpool and LG based on size. We did not like the Samsung ones that much...

While Size and layout is one aspect, is there any big technological advantage amongst the 3 models selected? Any other feedback and recommendation and tips much appreciated.

[SedateGuy]

Originally Posted by vsrivatsa

Hello Folks,

Looking to buy a new Refrigerator. Did some window shopping in Croma and a few other stores and we have shortlisted some models from various brands:

3. Bosch Series 4 free-standing fridge-freezer with freezer at top
https://www.bosch-home.in/productlis...lebox=manuals/

While Size and layout is one aspect, is there any big technological advantage amongst the 3 models selected? Any other feedback and recommendation and tips much appreciated.

We had bought a Bosch 2 door with steel finish. Within 2 years the doors were rusted heavily. Was able to get a replacement of the doors with some repeated phone calls as we had purchased a 5 Yr warranty. It isa Turkey manufactured unit.

[suzuki san]

Originally Posted by vsrivatsa

Hello Folks,

Looking to buy a new Refrigerator. Did some window shopping in Croma and a few other stores and we have shortlisted some models from various brands:

3. Bosch Series 4 free-standing fridge-freezer with freezer at top
https://www.bosch-home.in/productlis...lebox=manuals/

Bosch is a smaller one but the Layout looked good and hence on the shortlist but we will mostly have to decide between the Whirlpool and LG based on size. We did not like the Samsung ones that much...

Hi VSrivatsa,

Please do keep in mind that as with all things German, Bosch spares are fairly expensive . I had a Bosch fridge a few years ago and after a couple of expensive repairs on the front control panel (which we never touched), got rid of it and was glad to see it go.

Regards,
SS

[Aroy]

Originally Posted by vsrivatsa

Hello Folks,

Looking to buy a new Refrigerator. Did some window shopping in Croma and a few other stores and we have shortlisted some models from various brands:

1. Intellifresh 467L 2 Star Convertible Frost Free Double-Door Refrigerator
https://www.whirlpoolindia.com/intel...r/p?skuId=1121

2. LG 466L 2-Star Double Door Refrigerator with Smart Inverter Compressor
https://www.lg.com/in/refrigerators/...s/gl-t492mpzy/

3. Bosch Series 4 free-standing fridge-freezer with freezer at top
https://www.bosch-home.in/productlis...lebox=manuals/

Wife liked the Whirpool model the best but browsing thru some history of this thread, I see some people have mentioned that Whirlpool Support is questionable. Has this changed in recent times or is it still an issue?

Bosch is a smaller one but the Layout looked good and hence on the shortlist but we will mostly have to decide between the Whirlpool and LG based on size. We did not like the Samsung ones that much...

While Size and layout is one aspect, is there any big technological advantage amongst the 3 models selected? Any other feedback and recommendation and tips much appreciated.

We had a Whirlpool ~400L model for about 15 years, it did have a few problems, that were solved by Whirlpool engineers in the initial stages of ownership. Later on the support deteriorated. Our gasget had gone hard, and no spare were available.

After a lot of market survey, we got the Samsung 385L refrigerator. It has the best space utilization - the shelves are deep, so that where only one large and one small pan could be fitted depth wise now two large pans fit. OIt also comes with modern gizmos - reconfigurable freezer, individiual temparature controls and displays etc.

[Theyota]

Originally Posted by SedateGuy

We had bought a Bosch 2 door with steel finish. Within 2 years the doors were rusted heavily. Was able to get a replacement of the doors with some repeated phone calls as we had purchased a 5 Yr warranty. It isa Turkey manufactured unit.

Bosch produces many of their newer models sold in India in their new factory located on the outskirts of Chennai.

[Ravindra M]

Originally Posted by vsrivatsa

Hello Folks,

Looking to buy a new Refrigerator. Did some window shopping in Croma and a few other stores and we have shortlisted some models from various brands:

1. Intellifresh 467L 2 Star Convertible Frost Free Double-Door Refrigerator
https://www.whirlpoolindia.com/intel...r/p?skuId=1121

2. LG 466L 2-Star Double Door Refrigerator with Smart Inverter Compressor
https://www.lg.com/in/refrigerators/...s/gl-t492mpzy/

3. Bosch Series 4 free-standing fridge-freezer with freezer at top
https://www.bosch-home.in/productlis...lebox=manuals/

Wife liked the Whirpool model the best but browsing thru some history of this thread, I see some people have mentioned that Whirlpool Support is questionable. Has this changed in recent times or is it still an issue?

Bosch is a smaller one but the Layout looked good and hence on the shortlist but we will mostly have to decide between the Whirlpool and LG based on size. We did not like the Samsung ones that much...

While Size and layout is one aspect, is there any big technological advantage amongst the 3 models selected? Any other feedback and recommendation and tips much appreciated.

I suggest you have a look at Godrej Eon Regalis 472 Litres before finalizing. Pretty good in terms of quality and features. One of my colleague has recently got it in Pune and quite happy with it.

[vsrivatsa]

Any quick inputs on Electrolux Refrigerators? Is service an issue? Build Quality seems top notch! The 70-30 split seems like an advantage

[Aroy]

Originally Posted by vsrivatsa

Any quick inputs on Electrolux Refrigerators? Is service an issue? Build Quality seems top notch! The 70-30 split seems like an advantage

Yes service is an issue. Parts may be a problem after 10 years. Yes the build quality is excellent, but support pathetic.