Testing work of 33 KV and 11 KV breakers installed at all the sub-stations under EDD-I

Testing of 33 KV breaker panel breakers including Testing of CTR both by primary Injection. Work includes clearing and adjustment of relay contacts & setting checking of closing and tripping of breaker on remote/manual and protection trip command CT by means of Primary Injection. Checking of actual tripping time using VCB analyzer & comparision with calculated time.

Testing of 33 KV Power Transformer panel marshaling box and breaker by primary Injection method. Testing of window Temperature, Oil Temperature Oil level indicator, buchholz relay, surger relay for alarm and tripping testing of relay, works includeds cleaning and adjustment of relay contacts and springs and checking of breaker’s operations for remote/local closing tripping and protection trip command generated by primary injection.

Testing of 11 KV incoming/outgoing panel including Testing of CTR both by primary Injection testing of relay. Work includes clearing of relay contacts and adjustment of spring. checking operational and tripping of VCB/OCB on remote/manual and protection trip command generated through primary injection. Checking of actual tripping time using VCB analyzer & comparision with calculated time.

KAVYA ENTERPRISES

DEV ENTERPRISES