how we done power management?

in power station what is the electrical circuit length of spacing between power transformer and lightning arrestors,for the voltage system of 230kv,110kv,33kv,22kv,11kv?

1 Answers

11kv alternator commissioning test?

2 Answers

how can we change the rotating direction of single phase AC induction motors?

12 Answers Heubach Colour, L&T, MNM Jain Engineering College,

On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?

0 Answers Semac,

What is the differance between vacuum breaker and vacuume contactor

1 Answers

Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

0 Answers

Just a silly question but just to make my curious mind bac to normal - Why was not 67 and 67N relays built into a single relay as i have noticed that the R,Y,B CT wiring end up into the 67 relay while the common of the R,Y,B CT wiring end up into the 67N relay. Then it was better if a single relay was manufactured just like the distance relay (21). Another question i would like to ask is - how do we know where the 67 and 67 N relay has to be placed.why is it not placed at the transformer bay? In the substaion that i am working -i have noticed that it is placed between a breaker and a common double bus bar and this line bay is connected to another substation at a remote place which is furthur connected to a load. B U S______CT for 67 & 67N ______Breaker _____ remot s/s. B A R

1 Answers

shall we use a machine having 60Hz frequency in india ? why?

4 Answers

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