Answer / ravikumar josyula

Body Earthing is also termed as Equipment earthing,which
safegaurds human beings in the event of any leakage
currents from the eqipments.And all equipments should be
earthed at different places.

Neutral Earthing is also termed as System Earthing.It is so
essantial to keep the neutral at stable point in the event
of unbalances loads.Without system earthing neutral point
will shift its position causing unbalnced voltages,... .All
transformers where secondary windings are connected in STAR
( Power and Distribution) and generators, neutrals should
be earthed either solidly grounded or through impedance or
resistance earthed

Answer / gunasekaran

all non conducting part in the electrical sys should be earthed so we are earthed the body of the system but neutral earthing is system earth.

we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

0 Answers  

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

2 Answers  

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A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd. If the diameter of wire is made d/3, then drift velocity becomes

1 Answers  

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How to parallel a alternator without using synchro scope or lamp methods

1 Answers   Ofer,

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what is soft starter?working principle?where it can use?

3 Answers  

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what is power factor for any engineering equipment?? what should be its value?

3 Answers   ETA,

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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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Initially, when the input is not equal to the output — what type of response is this?

0 Answers   GE,

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which strater used genearalyy???and why???

1 Answers  

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It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

0 Answers  

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i need circuit star delta connection?

1 Answers   L&T,

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how many transformer

8 Answers   Dalmia Group, TATA,

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