Answer / sonu saini

in this type of soil special treatment is requried as two
or more electrode connected in parallel,nacl is used time
to time fo moisture maintain,good quality charcoal is used
and dust removed from pit time to time

Answer / vk972675

we can do the earthing with 3 mtr long 100mm dia C.I pipe
electrodes used and filling with coal & soalt than check the
resistivity

Why 3 over-current and 1 earth fault relay is used on primary side of transformer? Why 2 over-current and 1 earth fault relay in used on secondary side of transformer?

1 Answers   Adani,

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How to determine the Power factor is Leading,Lagging & Unity ?.I don'thave any Meters.

3 Answers  

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How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?

0 Answers  

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what is meant by armature reaction & where its happen ?

3 Answers  

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How is operate breaker failure scheme in substation

0 Answers  

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How much ampere rating on LT side of distribution transformer and also on HT side of 200KVA transformer

2 Answers   ABB,

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Why should we use Star-Delta connection in step down power transformers?

7 Answers   L&T,

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Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

3 Answers  

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How the neutral earthing is connected in DG alternator

6 Answers  

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Which neutral is use when DG(3 Phase)is running?

3 Answers  

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I have 1 KW, 3ph. 440v, 50 hz, cos(phi) .75, efficiency 75%(star delta connection)Motor. How to calculate line current & Phase current (1) Star connection (2) delta Connection

2 Answers  

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Consider a case that two 200 hp motors are connected to 500KVA transformer. For improving power factor can we add capacitors in common bus bars to motors. Or should we add capacitors for each individual motor?

2 Answers  

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