TECO AEEB, Instruction Manual

Page: 44 / 47

Teco Installation and Maintenance Manual
TEFC Squirrel Cage Induction Motors
Teco Electric and Machinery Company
Manual Number: IOM ~ TEFC Rev.01
44
Chapter 8: Troubleshooting.
8.1.
FAULT FINDING & RECOGNITION
Kind of
Fault
Symptom Cause Remedy
Fail to
start without
load Motionless
And soundless Power-off Consult power
company
Switch-off Switch-on
No fuse Install fuse
Broken wires Check wires and
repair
Broken lead Check leads and
repair
Faulty winding Check winding and
repair
Fuse blowing –
(Circuit Breaker
trips off, slow
start with
electromagneti
c noise
Short circuit Check circuit
Incorrect wiring Check wiring
Poor contact in circuit
switches Check and repair
Broken wiring Check and repair
Poor contact of
starting switch Check and repair
Incorrect connection
of starting switch Check and repair
Overload
after start Fuse blowing –
Fail to restart
due to circuit
breaker
tripping
Insufficient capacity
of fuse or breaker Replace fuse or
breaker
Overload Lighten load
High load at low
voltage Check circuit
capacity and reduce
load