Answer / vengatesh

1.Circuit Breaker
2.Protection relays
3.Fuse(over current protection)
4.Earthing(For drawn the Fault current which is higher than normal voltage)
5.Control panel body earthing(To prevent the body shorts)

Answer / rajendran.m

Earthing system.

Answer / rcq

1. Reverse power relay
2. Reverse kvar relay
3. Overcurrent and eatht fault relay
4. Trip/Lockout relay
5. Differential protection relay

Answer / khajamian

MCB,s MCCB,S .....miniature circuit breaker and mould case
circuit breaker....and various relays..... [protective
relay,current relay, thermal relay..over load relay.. ]etc

Answer / sridhar

(i) SPD(Surge Protection Devives)
(ii) Prevent the Oxiditation by painting
(iii)To choose the Proper Enclosure system

Answer / sb

CT,PT & CB

what is differnce between oil transformer & dry type transformer ???????????

2 Answers  

What is the maximum allowed kwa through 2.5mm cable. Electric company installed 2 electric meter at my premises . Two jumper wires of 2.5 mm are used to connect . 2 single phase meters with allowable load 6 and 3 kwa. These jumper wires are taken from a 3 phase electric meter. Meters are in open Sun. What max load these wires can take.

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what is thermal setting and magnetical setting?

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why does in transformer the v/f ratio constant?

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relation between power station capacity and voltage level?

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my project load is 6 MW so please suggest the size of cable.. ALU 3c 400 aqmm cable can be sufficient.. is there any thumb rule for calculation of cable size please help me

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what do u understand from filter factor of reactor?

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salam,hi, i need to know what the spesification of 300amp msb...

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why the vector group of excitation transformer is YD5(150 deg)how is this factor decided.

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How is the percentage impedence of a transformer fixed at design stage???

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at what condition restricted earth fault relay will act?

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How can you justify a fully carged battery by physical checkup ?

12 Answers   Indian Military Services,