Answer / j.kesavan

mostly use in mine site HT motors 3750kw,1750kw,crusher
side thay are using slip ring motors,conveyers using
inductionmotors,coveyers thay are using variable speed
drives.

Answer / ck

In mines generally induction motor is used and a motor is used in mine where there is a danger of explosion

How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

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Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

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Can any one tell me the current VAT, Sales Tax, Octroi and Excise duty for the financial year 2009 -2010. Say control panels are manufactured in maharashtra, then what will be the taxes for within Maharashtra and outside Maharashtra?

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Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?

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why it is in star to delta form of Synchrounus generator and delta to star form of Generator Transformer (or step up transformer)

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what is the requirement regarding earthing of Single conductor with AWA

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from 33kv to 440v 2mva transformer how much full load current will be at ht side and lt side and which range of ctpt will be used?

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hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.

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What is the resonant peak?

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dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?

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Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

2 Answers   TATA,

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why we measure ouput of transformers in kva.

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