ITT GOULDS PUMPS JCU, Инструкция по установке, эксплуатации и обслуживанию

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4 Commissioning, Startup, Operation, and
Shutdown
4.1 Start the pump
The most important concern is the prevention of motor overloading.
1. Refer to the motor nameplate for full load ampere rating of the motor.
2. Install an ammeter on the motor leads and check the motor draw immediately after the unit is start-
ed.
NOTICE:
A lower than expected current draw with a 3-phase motor may be an indication of incorrect ro-
tation. If the amps are lower than expected, check rotation.
a) Observe the discharge for flow rate. If it is lower than expected change two of the three motor
leads to reverse the direction of rotation.
NOTICE:
Single-phase motors are internally wired for correct rotation.
b) Check the motor overload at some other condition from that encountered at start-up
The ammeter on the motor leads should be checked for overload at all sump level heights with the
liquid that will be normally pumped. The horsepower will tend to increase as the level in the sump
rises, due to increased flow.
4 Commissioning, Startup, Operation, and Shutdown
JCU Installation, Operation, and Maintenance Manual 17