Answer Posted / n. rajesh

Megger is a instrument for testing of Electrical
Resisitance of electrical equipment like transformers,
motors,cables etc.,
Two types of meggers ;-
1. Analog megger
2. Digital megger.

Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?

1994

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what is the IPC ? & what the uses ?

1500

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HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

1984

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two way ckt diagram can be drawn by how many ways? give diagram

1777

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Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

2891

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How we can defined theecopper cable size if we know the aluminium cable size?

1876

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How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

1841

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describe the Tranformer testing procedure

1886

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how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

2609

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How to set a Zone 1 distance relay for distribution feeder?

2028

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what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

2338

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how the inner and outer body is separated in aircrafts?

1109

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11 kV line deraction check by an Engineer.

1981

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A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2818

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how you configure motorvision relay (L&T make)from DCS

4897

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