Starting Current of an IM while second is running
Starting Current of an IM while second is running
(OP)
Hello everybody;
We want to use 2 squirrel cage induction motors connected parallel for a water pumping station. At normal operation, only one motor will be running, and if necessary the second one can be started.
The rating of each motor is 370 kVA, 3-phase 380 V with minimum 0.85 PF.
My question is; are there any cicumstances for the starting current of a squirrel cage motor while the other is running? In other words, are the conditions change for starting of an induction machine depending on the present parallel connections?
We want to use 2 squirrel cage induction motors connected parallel for a water pumping station. At normal operation, only one motor will be running, and if necessary the second one can be started.
The rating of each motor is 370 kVA, 3-phase 380 V with minimum 0.85 PF.
My question is; are there any cicumstances for the starting current of a squirrel cage motor while the other is running? In other words, are the conditions change for starting of an induction machine depending on the present parallel connections?





RE: Starting Current of an IM while second is running
As an example: If the starting current is 6 times that of the normal current, then the resultant impedance magnitude will be about 6/7 or about 86% of that of a starting motor. To be on the conservative side use the starting power factor of that of the starting motor!
RE: Starting Current of an IM while second is running
Quando Omni Flunkus Moritati
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running
RE: Starting Current of an IM while second is running