Answer / abishekmittal

In transmission lines, we can have different types of
protection like.
1. Distance protection
2. Back up distance
3. Cable differential protection
4. Line differential protection

Answer / er.s.ramkumar

Distance relay used for transmission line protection, this
relay operate when fault happend in the line.save the load
or other working equipments.

Answer / sindhu

in case any fault occurs in the transmission line, it is
used to isolate the healthy side from the faulty side i.e it
is used to protect the line from total damage.

Answer / karthi

in abnormal condition,fault current may be more, to isolate the fault current elemente from the system

What are the possible causes if load is not same on all the three phases

4 Answers  

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What is the difference between automatic & semi-automatic star-delta starters?

3 Answers  

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what is isochronous mod? what is voltage drop mode and p.f mode?

0 Answers   ABB,

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wt wil happen if a 120kv line is grounded

4 Answers  

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why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

0 Answers  

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what is interpose? where it is used and why it is used?

0 Answers  

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sir, how to select the cable size, what is the parameters use ang what is the formulas use for this cable size calculations. please tell me.

4 Answers   ISRO, Power Grid,

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Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

0 Answers   MRF, PPCL,

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Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 Answers  

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AP Transco Assistant Engineer (Electrical) Model Question papers

2 Answers   APTransco, HCL, Tranco, UPSC, VMware,

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What is Ton Capacity of Air Conditioner?

1 Answers   TATA,

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SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

2 Answers  

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