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Operational Difficulties - GE Pegasus MHV GEEP-427-I Instuctions

Horizontal induction motor totally enclosed water-to-air cooled sleeve bearing
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Operational Difficulties

WARNING:
ROTATING PARTS CAN CAUSE SERIOUS INJURY.
THE USE OF ELECTRIC MACHINERY, LIKE ALL
OTHER UTILIZATION OF CONCENTRATED POWER
AND ROTATING PARTS, CAN BE HAZARDOUS.
MAKE CERTAIN THAT THE VOLTAGE IS REMOVED
FROM ALL CIRCUITS AND THAT NO MECHANICAL
PARTS
ARE
ROTATING.
OPERATION AND MAINTENANCE OF ELECTRIC
Trouble
Motor will not start
Noise or vibration
GE Energy Motors GEEP-427-I
HIGH
VOLTAGE
INSTALLATION,
TROUBLE - SHOOTING CHART
Possible Cause
Power not connected
Low Voltage
Wrong control connections
Driven machine locked
Open circuit in stator or rotor
winding
Winding grounded
Excessive load torque
Overload control trip
Motor running single phase
Supply bus unbalanced
TROUBLE - SHOOTING CHART
GEEP-427-I Pegasus, Horizontal Induction Motor
AND
MACHINERY
QUALIFIED PERSONNEL. FAMILIARIZATION WITH
NEMA PUBLICATION MG-2, SAFETY STANDARDS
FOR
CONSTRUCTION
SELECTION,
ELECTRIC MOTORS AND GENERATORS, THE
NATIONAL
LOCAL PRACTICES IS RECOMMENDED.
Copyright 2009, The General Electric Company, USA 31
TEWAC, Sleeve Bearing
SHOULD
BE
PERFORMED
AND
INSTALLATION
AND
ELECTRICAL
CODE
Action
Connect power to control, and control
to motor. Check contacts.
Check motor nameplate value with bus
voltage.
Check connections with control wiring
diagram.
Disconnect motor from load. If motor
starts
satisfactorily,
check
machine.
Measure/compare winding resistance
of each phase.
Test for grounded winding.
Check motor capability.
Wait for motor to cool. Try starting
again.
Stop motor. Then try to start. It will not
start on single phase. Check for
"Open" in one of the lines or circuits.
Check balance by measuring current
and voltage in each phase. Correct the
power supply to obtain balanced
voltages.
BY
GUIDE
FOR
USE
OF
AND
SOUND
driven

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