Page 141 - Practical Power System and Protective Relays Commissioning
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Disconnecting Switches and Earthing Switches Chapter | 12 139
The results at site shown in Fig. 12.8 was in the range of 45 50 μΩ.
4. Insulation test
a. This can be done by Megger tester at 5000 V DC.
5. High voltage AC test
a. This test will be done during the first energization of the substation
with a nominal voltage of the disconnecting switch.
