how we can find out the speed of fan without using any measuring instrument

2 Answers  

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What is the difference between earth and neutral

4 Answers   ABB, Tamboli Engineers,

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Explain the Term in CT Name Plate – Class: 5Ps

3 Answers   Divis Laboratories,

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11/.433KV, 100KVA TRANSFORMER is supplied with .433KV AT ITS PRIMARY. HOW MUCH KVA IT CAN SUPPLY

8 Answers   ABB,

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hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

0 Answers   Ansaldo,

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Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.

12 Answers   ACC, JLL, ZETDC,

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

1 Answers  

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Explain what is rated speed?

0 Answers  

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1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be

0 Answers   KNJ,

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what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

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what do you mean by the "bay" in a switchyard? how to determine exact number of bays in a substation?

8 Answers   Essar, L&T,

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If a ACB breaker is tripping and closing problem, then what will we check internal..?

3 Answers  

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