WHY SEPARATELY EXCITED MACHINE NEEDS EXCITATION BY DC SUPPLY WHY NOT BY AC

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why the electric train touches only one conductor n where is the neutral n it will be running 3-phase or 1-phase?

3 Answers  

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i have 1500 kva generator how much maximum load avilable of use

1 Answers   Dr Reddys,

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which is dangerous AC or DC? If so why?

4 Answers  

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What is the maximum advisable distance where it is required to interconnect a 500 KVA 480 V 3 ph transformer and the main panel or MCC ignoring the voltage droop affectation, does it is exist any standard about it?

2 Answers  

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What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

0 Answers   HAL,

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There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

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what is the difference between isolator and circuit breaker

3 Answers  

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What is quadrantal symmetry?

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what is the full load current and power rating of 1 Tonne Air Conditioner?How will Calculate?

2 Answers  

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How many types of electrical earthing are there?

0 Answers  

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DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?

0 Answers  

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