Quantcast Malfunction

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 


(f) A manually operated control disconnect device is provided with all circuit breakers.
When opened, this device will prevent the electrical closing of the circuit breaker; both remotely
and locally.
3.5.7.6 Malfunction. There are many things that can be the cause of a circuit breaker not
performing correctly. Problems that can be corrected by the operator are indicated in Table 3-1
(Troubleshooting Chart for Circuit Breaker Operation). The maintenance crew is, however,
responsible to remedy many circuit breaker malfunctions.
TABLE 3-1
TROUBLESHOOTING CHART FOR CIRCUIT BREAKER OPERATION








Trouble
Probable Cause
Course of Action





 o Mechanism binding or


Failure to trip.

  sticking - caused by:



  Lack of lubrication.
 Lubricate mechanism.


  Mechanism out of
 Adjust all mechanical


  adjustment.
 devices, such as



 toggles, stops,



 buffers, opening



 springs, etc.,



 according to



 instruction book.






 o Failure of latching
 Examine surface of


  latch.
 device. If worn or



 corroded, it should



 be replaced.



 Check latch "wipe",



 and adjust according



 to instruction book.




3-38





 


Privacy Statement - Copyright Information. - Contact Us

Integrated Publishing, Inc.