Answer / raghavendran r

The reverse power relay is used to monitor the direction of
power from A.C generators, if the current in the system
being monitored is reversed, to a value greater than the
customer adjustable preset limit the relay will energise.
The adjustable trip point is 2% to 20% of input current. An
adjustable time delay of 0 to 20 seconds is provided.
Correct setting of the trip point and time delay, will
ensure protection against motoring action of the Syn gen.

An inadverdent relay is used to trip the circuit when a syn
gen has been energised or excited inadvertently.

why is the transmission voltage is multiple of 11?

4 Answers  

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we have taken HV test of 2.5 k and Megger test on 11 kv HT cable.here it shows no fault but when we are charging the same cable with 11 kv supply why the VCB 11 kv gets tripped can anybody define the possible cause of fault ?

4 Answers   MAHINDRA,

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Differentiate between digital phase converter and ordinary phase converter.

0 Answers  

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what is the difference between earthing and grounding?

6 Answers   Bhel, Wipro,

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USE OF 8 WAY PAN ASSEMBLY

0 Answers   TCS,

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What is the method to calculate the capacitor bank rating for say 50 KW load and how do we connect each capacitor to busbar??

4 Answers  

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why we do 2 types of earthing on tranformer ie:body earthing & nutral earthing , what is function. i am going to instal a 5oo kva tranformer & 380 kva DG set what should the earthing value

8 Answers   Altrion Technologies,

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What is NDR in HT capacitor panels.

2 Answers  

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what type of earthing do for dry fissure rock?

0 Answers  

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What are the advantages of the three-phase motor over single phase motor?

0 Answers  

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sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

0 Answers  

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some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

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