BUS BAR TESTING

The following test to be conducted  on bus bar.

1. Contact Resistance test
2. Insulation Resistance check  before H.V test
3. H.V test
4. Insulation Resistance check  after  H.V test

1. Contact Resistance test:

Contact Resistance measured by injecting the DC current through the busbar. With the feed back of voltage drop the resistance value will be arrived in the micro ohmmeter.


2. Insulation Resistance check before H.V test:

Insulation values measured between phase to earth and between phases with the help of 5 KV megger for 60 seconds.

3. HV for  BUS BAR:

The high voltage test is conducted to find the healthiness of the dielectric material supporting the bus bar. This is achieved by applying 24 KV AC between phase – Earth (remaining phases are shorted and earthed) for 1 minute. With the help of HV test kit.

The leakage current in milli amps will be measured and recorded for analyzing purpose the insulation should be withstand this test for the specified period.

H.V Testing for Bus bar

4. Insulation Resistance check after HV test:

Insulation value measured between phase to earth and between phases with    the help of 5 KV megger for 60 seconds.After HV test to find out any detonation of insulation material  after the HV test voltage stress. And to be compare with the IR values taken before the  HV test.