Answer / rahul shukla

VOLTAGE FREQUENCY PHASE ANGLE VECTOR GROUP %IMPEDENCE
POWERRATING VOLTAGERATIO .

Answer / karthikeyan.g

1, voltage
2,frequency
3,phase sequence

Why can't we parallel the secondary circuits of two voltage transformers?

0 Answers  

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We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?

5 Answers   Siemens,

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What is the main application of DUMMY COIL in machines?

3 Answers   IES,

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1.what is meaing of ups,and used in softwares and sud stations,and main partes in ups. 2.main partes of the Disel Genarator. 3.main partes of the chiller and safty equipments.

2 Answers  

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HOW DO YOU CAN CHECK A 15KV DIODE, WHETHER IT IS OK OR NOT?

0 Answers   TMB,

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How much maximum power can be transmitted on 66 KV transmission line?

1 Answers   Konark, NDPL, Torrent Power,

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anti pumping relay function

3 Answers   Hofincons,

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what is the diff between mcb and vcb

3 Answers  

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How the starter control the starting current in three phase AC Motor?(In DC apply the reistance).

6 Answers  

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Draw a block diagramof Three UPS systems connected in Parallel mode?

0 Answers   HSL,

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Define heating time constant of electric motor.

3 Answers  

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Explen all type electrical protection ? like O/C,E/F,NPS,VOLTAGE UN BLANCE,CURRENT UN BALANCE,NAGETIVE PHASE SEQ,AND ETC...............electrical Protection

6 Answers   Reliance,

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