WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION?

5 Answers   L&T,

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Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

1 Answers  

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what is safety of ups

1 Answers   JLL,

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Whether the over frequency protection is turbine or alternator and why?

1 Answers   Marg,

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Dear all: Recently we got a question about Interface between PMS and SAP-PM.once we got a update message from PMS.we should set the deletional flag for functional location in SAP system.Is there any FM or BAPI to use?There are only functional location create and change provided by SAP. Best regards!

0 Answers  

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if single phase is having 220v supply then why three phase is having 440v instead of 660v?

4 Answers   C&S, NTPC,

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WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 Answers  

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What is meant by knee point voltage?

2 Answers  

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Discribe type of fault in DOL and stardelta startor.

0 Answers  

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HOW TO MEASURE AC VOLTAGE BY USING GALVANOMETER?

1 Answers  

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can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

0 Answers  

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How to select Main CB Rating for 220 KW Load?

3 Answers   Voltech,

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