is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

0 Answers  

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Earth leakage relay basic knowledge principle

0 Answers   Radiant,

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why voltage between neutral and earth, with out secondary grounded distribution transformer

1 Answers   Wescosa,

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how does grading rings & spacers in transmission line works? Working Principle?

0 Answers  

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Currently what is the highest capacity (MVA) of SPPg generator available in the market?

0 Answers   SPPG,

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how can we measure rotor current of a 3phase wound rotor induction motor connected to liquid resistance starter

1 Answers  

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what is difference b/w bus duct & bus bar.

2 Answers  

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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

0 Answers   Glenmark,

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MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED. TRANFORMER DETAIL NORMAL KVA--150 KVA PRIMARY VOLTAGE --34.5 KV SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA CONNECTED) CONNECTION--D/d (EXTERNAL CLOSED) CONSTANT RATEING FROM--1.290-908V CONSTANT CURRENT FROM--908-690 VECTOR GROUP--D III

1 Answers  

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is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

0 Answers   Unitech,

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what happens when series resonance occurs?

0 Answers  

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In 3phase supply Voltage will come around 370v then what will happen?(mean what will effect on electrical equipment like AC,UPS,Motors.)

1 Answers   NTPC,

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