Answer / abdul rehman

Used in the linefinder circuit to make sure that only one
linefinder can be connected to any line circuit when two or
more line relays are operated simultaneously

Answer / kumar

Mr.Abdul i already viewed this answer in Wikipedia but i
can't get the answer so can u please explain it

advantages of vvvf drives over non vvvf drives for EOT cranes

2 Answers   HEC,

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improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 Answers  

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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what is the IPC ? & what the uses ?

0 Answers   Bhel,

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will a transformer work when pulsating dc id applied to its primary?? what will be the result??

2 Answers   cemp,

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how can we calculate cable size

1 Answers  

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IF I USED VVVF DRIVE IN FAN APPLICATION MOTOR IN 6.6 KV ( 700 KW) MOTOR & DURING NORMAL RUN OPERATION TIME IF RPM SUDDENLY REDUCE IN MOTOR BY DRIVE(E. MOTOR RPM REDUCE SUDENLY 687 TO 550 RPM) WAHT WILL BE HAPPEND IN DRIVE

1 Answers  

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how many joints are allowed in underground HT cable of 1 KM

0 Answers  

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why high speed tripping relay is used in protection circuit why not normal relay

0 Answers  

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Calculation for the adequacy of 380 KVA neutral earth flat size

1 Answers   Electrical,

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how balanced in star delta connection ?

0 Answers  

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why current is denoted by I

7 Answers   CTS, GCT, Samtel,

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