Answer Posted / kj

The polarisation index is used to check the insulation of
MV and HV motors because it is more accurate. Also it
allows a lower voltage than the working voltage of the
motor to be used. In LV motors the megger test is usually
twice the working voltage. If this was used on an 11kv
motor the megger would need to be 22kv.

can someone explain that how the speed of the protection system affects the fault level calculation?

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What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.

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Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

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how to introduce yourself

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what is per unit calculation?looking for simple and strong explanation thk u

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what are the condition that makes hooter blow?

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How to size Air Circuit breaker (ACB)? What is the most important factors?

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hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

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How many kw will suply from one db

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what are the different kind of cables used for transmissions?

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How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

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What’s electric traction?

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What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

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HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory

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What is the purpose of stand by earth fault protection for transformer ?

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