Correction of capacity
Correction of capacity
(OP)
Hi by all!
In Russia often are delivered of the compressors in structure chillers on a voltage 400V-415V. But here voltage - 380V.
That in your opinion is correct:
1. It will not call decrease of capacity.
2. It will call decline of capacity and on how much?
3. The capacity will increase.
In Russia often are delivered of the compressors in structure chillers on a voltage 400V-415V. But here voltage - 380V.
That in your opinion is correct:
1. It will not call decrease of capacity.
2. It will call decline of capacity and on how much?
3. The capacity will increase.





RE: Correction of capacity
In Russia often are delivered of the compressors in structure chillers on a voltage 400V-415V. But here voltage - 380V.
///Clarify the Horsepower (HP) rating\\\
That in your opinion is correct:
1. It will not call decrease of capacity.
///As long as the HP rating is the same for 400-415V and for 380V.\\\
2. It will call decline of capacity and on how much?
///There will be some decline if you apply 400V rated motor to 380V power supply since the torque T ~ |E|**2. However, if the shaft HP stays the same, then the motor will draw more current and it will overheat somewhat and age faster.\\\
3. The capacity will increase.
///If you apply 380V rated motor to 400V or 415V, then the torque increases and the motor may deliver more shaft HP depending on the Load Torque - Speed curve profile.\\\
RE: Correction of capacity
I have real object with such problem.
The compressor(73HP) under the electrical characteristics
should have 136FLA, however has 110FLA only.
Thus the general decline of productivity system reaches 15%.
And question:
The voltage is guilty or something else?
RE: Correction of capacity