Substation Testing and Commissioning: March 2013

Wednesday, March 20, 2013

RED RELAY CONNECT WITH PCM600

1. Set the IP address in the Laptop

2.Open PCM 600 and a project stricture as below and select your relay type

3.Select online

4.Enter the IP address of the relay flow the steps as below

Sunday, March 17, 2013

BCT TESTING

During BCT testing in Tertiary winding CT ratio value not come properly.

Then HV side all three phases shorted test was repeated and test results are ok.

Saturday, March 16, 2013

1. If lower side is radial circuit or week end ( There is no source connected and only incoming) Higer side all protection should trip the lower side and Higer side CB Open contact no need to trip the lower CB.

2. Protection should trip both TEST and Service condition.

3. PD -2 BF -2 should trip adjacent CB and CB should be service conditions.

HV GIS TEST

1. HV test kit should have the surge arrestor facility to with stand the surges. Otherwise kit will get damage.

2. Earthing of generator is very impotent for leakage and surge current following.

3. Make the required circuit in GIS and open the TC1 & TC2 and DC circuit to avoid the tripping during HV injection.

4. Put LCC operations local mode to avoid the remote operations during testings

5. Short all CT secondaries and Spare CTs

6. Check all VT primary links make it open.

7. Check the Capacitance value of GIS some times need compensate capacitors in HV test.

8. If flash accrue concentrate on outdoor GIB side.

9. More details LINK