Answer / thowsif_emerson

It should be connect before the Input Filter of the UPS..

Pls have a look on this Circuit Diagaram:-

http://www.tpub.com/content/doe2/spec3021/spec30210047.htm

why transmission voltage is 230kv and not 220kv which is a multiple of 11

1 Answers   Mettur Thermal Power Station, Siemens,

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Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

0 Answers  

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In case of 3 phase motor why it is called single phasing by failure of one phare unless there is rest two phase are acting. ?

3 Answers  

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why we are using DC supply for all protection relays, why cant we use AC supply..???

1 Answers  

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for a 132/33kv transformer secondary is star and is connected to NER. and from secondary a cable is running to 33kv swbd. since the cable is single core do i have to run neutral cable also to 33kv swbd.???

5 Answers   PowerTech,

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why doesnt the back emf hold the speed of unloaded series motor?

1 Answers  

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what is cascade speed control device?and how this device control the speed of motors?

0 Answers   ABB,

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what is power transformer?

1 Answers  

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What are the various types of BUSBAR Schemes? explain each

2 Answers   Thermo,

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what is transient earth voltage

2 Answers  

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is earthing is necessary if we use armoured cable

1 Answers   ABB, Schwing Stetter, Siemens,

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what is diff. b/w of earth & neutral?. why we are separately using ?

3 Answers  

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