Answer / gs rajan

I thinking MCCB 200Amp, Rccb 40 Amp.

where we sense the fault from the transmission lines?any operation example for distance relay?rear panel connection for this relay?

1 Answers  

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how rated the neutral voltage of transformer and reactor, e.g. 400/220, 200MVA transformer have neutral voltage of 33kv. and reactor voltage 145kv. how this rating decided?

1 Answers   MEIL,

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Ceiling fan motor wiring Hi, I have 2 ceiling fans broken. The receiver/control units burned out due to lightening. One Harbor Breeze and one Hunter's I took them apart (remove receiver units). Now on both of the motor I see 4 wires coming out from each motor I really want to know the function of each wire. Are there anyway I can test to see which is which? After searching forums I know these 4 wires are from 2 sets of coils inside the motor, one is Start winding and the other is Runing winding I could not find the receiver/control unit any where, so I am planing to buy Capacitors and universal remote controls to make the fans run again. Anyone has any idea how to do the wiring, please help Thnks

1 Answers  

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Motor,transformers,capacitor tubelight etc....

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What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

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generally on the roadside v hav 11kv line which is being step down to 440v line to line....so any1 can tell me which type of transformer they r using whether it is star to delta,delta to star etc...???

9 Answers   Core Solutions,

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1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends

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What are the protection used for alternator,transformers.

2 Answers   Adani,

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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 the control mechanism is present for an ammeter(1-10A) and 1A current is apllied what will be the reading of the meter?

2 Answers   GATE,

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Why the motor take high starting current for long time(10- 15 sec) which is connected to Blower as compaire with a motor which is connected with pump with same rating?

2 Answers  

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Why 66KV is step down to 11KV and then 433v, not directly 66KV to 433v ?

2 Answers  

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