Answer / rajesh

Air circuit breakers can be used for LT (415V). For higher
voltages (27.5KV etc. encountered in the railway
use),Vacuum circuit breaker is needed.

Answer / aditya dash

air circuitbreaker

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,

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in 220 kv substation,what is the mean of avr voltage reading? means at oltc temp. 36 the avr voltage was 109v.so what the mean of 109v

1 Answers  

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1 Answers  

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What will happen if 40W and 60W Bulb is Connected in Series.

2 Answers  

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what is sevice settings for mccb?How can be it setted?

1 Answers  

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What is mean by nominal voltage,Explain?.How much nominal voltage?.

1 Answers  

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TRANAFORMER RATING 500 KVA,33KV/433, SECONDARY SIDE SWITCHED ON ONLY CAPACITOR LOAD 140 AMS, PRIMARY SIDE HOW MUCH VOLTS INCREASE?

1 Answers   BPL,

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when a motor is connected in parallel with the existing motor the pf will change or not?

9 Answers  

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Is ground earthing required for neutral conductor of a prime mover ie DG set?

1 Answers  

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Transformer Parallel Operations

1 Answers  

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what is the diff between mcb and vcb

3 Answers  

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What is block diagram?

0 Answers  

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