Glenn,
Thanks for the info. It makes sense, as the electric power grid in India is
modelled after the UK. Over the past 10 years or so, there has been an
effort to normalize the power difference across the EU. Prior to this effort
the leg power in the UK was 240 and on the continent 220. Over the past 10
years the power in both has gradually been balanced at 230 Volts per leg for
compatability reasons. This may not have happened in India yet.
Steve

"Glenn Ashmore" wrote in message
news:0Q4dg.14$Ce1.1@dukeread01...
According to this site:
http://www.sensorcentral.com/worldsu...tandards12.php if the OP is in
India his choices are 1ph 230 or 3ph is 240/415V.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Steve Lusardi" wrote in message
...
Hi,
When someone says that your power is 220, 50Hz, they are referring to one
power leg measured to nuetral. In the US that voltage is 120. In Europe,
it is 220. With 3 phase power, you have 3 power lines, each being 120
degrees out of phase from each other. So, when measuring the voltage
Phase to Phase, you have 208 in the US and 380 in Europe. In the US
industrial areas where 3 Phase power is available, it is possible to
obtain 208 and 440 commonly and other higher voltages upon request like
880. The same is also possible in Europe in industrial areas. The power
in India is modelled after Europe (UK). So, in summation, if you have
220, 50 Hz, you also have 380/400 3 Phase power. Now, in the US, most
208, 3 Phase motors are also 440. They are changed by simply rearranging
the 12 wires within the motor.

It is clear you are confused. There is no such thing as 220, 3phase power
anywhere. In the states it is 208, 440 or 880 measured phase to phase. In
India, it is 380/400, 660/740 and higher. No changes need to be performed
other than wiring them internally for 440. Upon arrival, apply 380/400
and they will work fine.
Steve

wrote in message
ups.com...
Hi steve..
Thanks for the prompt advice.i'll be checking out with the manufacturer
for the concerns..but in my case it would just be a change from 60hz
to 50hz with the operating voltage remaining the same i.e. 220v
i would be installing these in india.Where the supply is 220v,50hz.
i would also be using similar kind of motors.(15,10 hp).Do think
overheating will not be significant in my case.