Answer / loganath

Motor protection relays are available in the market such as
Areva make MOTPRO, MiCOM P22X, but these relays are costly,
not used for small motors unless application warrants the
same, CT is required to connect with these relays unlike
direct connection for OLR

Why Aluminium wires are used for High tension(HT) lines? 11 KVA/32KVA & aboue

6 Answers  

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What are the advantages of hydropower?

0 Answers  

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why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is

4 Answers  

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LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?

0 Answers   Himatsingka Seide Ltd,

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Why double earthing is required ?

1 Answers  

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how the arcing is made in ac electric arc furnace? ( between the three electrodes in any sequences or between the electrode & the charge(steel))

1 Answers  

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

1 Answers  

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During the main stator winding insulation testing (phase to ground)of 11kv alternator (Lerysomer) i found 0 and resistance with multimeter and found 20 killo ohm while the power cables are connected both end (Generator & VCB). In VCB PT (Potential transformer) are connected. Please any body explain that method of insulation is correct or not? also describe of PT connections

1 Answers   Private,

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We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

0 Answers   MSEB,

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how to select earthing wire? procedures and parameters?

2 Answers  

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What is the differentional relay...what is the work of this in power Tx. how it is works..

0 Answers   ABB,

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Compare salient pole and cylindrical rotor machines.

0 Answers  

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