Answer / maning

Shunt Trip

Answer / karthik raman.b

it may be switching transformer

Answer / jim sreedharan

ST is service turret( used to provide power supply to
plots/ residential villas).

Answer / mostafaghodrat

acb:
air circuit breaker
motoraise
2type:
1- with protection
2-without protection
vcb:
vaciuum circuit breaker

Advanced
To prevent the creation of the Arc, the contacts are located
inside the vacuum chamber.

Answer / venkatesh s.r

super tension

Answer / venkatesh sr

spring tension

Answer / bhaskar reddy

it may be meaning of st is small tension

How to calculate ht side cable of 630 kva oil cooled outdoor transformer?

1 Answers  

Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

1 Answers  

1.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how

5 Answers   BEMCO, CSS, Powergear,

Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.

12 Answers   ACC, JLL, ZETDC,

how to calculate 'In'in a system?

2 Answers  

long form of CT

3 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current

0 Answers  

cause of failure of transformer bushes

3 Answers  

what is the use of vcb & isolator in substation?

0 Answers  

at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.

0 Answers   iGas,

I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

Why we are mostly using a single 3-phase transformer instead of three 1-phase transformers?

7 Answers