Answer / sumit mishra from areva t&

Protection required for dectection of abnormal(fault) condn
in case of generator are called generator protection.

Proetction req is based on the rating of the generator.
Following are some protection req in case of Generator.
1.Under/over voltage
2. Under/Over freq
3. Reverse Power
4. Differential Protection
5. Voltage controlled/restrained O/C
6. Loss of Filed
7. Stator E/F
8. Rotor E/F
9. Negative sequence/unbalance
10 Pole slipping etc..

The readings with a Multi meter are 15 Amps Phase Neutral 192,Phase Earth 194 and Neutral Earth 24 5 Amps Phase neutral 192, Phase Earth 153, neutral Earth 48

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