Answer / guest

three phase meggering is three colors 1)Red,2)yellow, 3)
blue, and black is nutrel, and green is earth

Answer / jamil akhtar

three phase wiring may in star or delta. In case of star
red, yellow and blue wires will be phases and the fourth
wire will be called neutral, In delta no neutral wire is
present.

Megger is a measurement of insulation of winding/windings
with respect to ground or earth.

Difference between earthing & grounding.?

0 Answers   Nitco,

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where is highest transmission voltage is used in india

2 Answers  

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Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

0 Answers  

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What is meant by stator? What is meant by rotor?

0 Answers  

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what happens when current(ac or dc)flowing through a boucket of water?please describe it.

3 Answers  

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why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

0 Answers   Sail,

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why the transformer was not rotating like a motor?

5 Answers   TATA,

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what is the difference b/w winding insulation class and winding temperature class?

6 Answers   Bhel, NDPL, NTPC,

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Can I use cable armour as a earth conductor? if not how many GI/CU wires I need to run along with cable?

1 Answers  

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What is x/r ratio?

1 Answers  

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-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

0 Answers  

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how can i improve the power factor in domestic (230v)

0 Answers   Epcos,

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