What is error of a measurement?

0 Answers  

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how to calculate cooling requirement of datacentre from electrical load?

0 Answers  

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Explain What will happen when direction of field current is changed (i.e, field excitation is reversed) in the following machines? 1) Alternator 2) Synchronous Motor 3) D.C Generator ( Shunt or Seies ) 4) D.C Motor ( Shunt or Seies )

3 Answers   NTPC, Transco,

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how to select a cap,when a fan is required 2.5 micro ferad cap,then how we know about 1 hp motor?

1 Answers  

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Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

0 Answers  

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

0 Answers   Hira Group,

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why transformer rating in kva

6 Answers  

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15 suspects are rounded by the police and questioned about a bank robbery. Only one of them is guilty. The suspects are made to stand in a line and each person declares that the person next to him on his right is guilty. The rightmost person is not questioned. Which of the following possibilities are true? A. All the suspects are lying. B. The leftmost suspect is guilty. B only

2 Answers   TCS,

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which generator is called as brushless excitation generator and why??

3 Answers  

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can we use HT cables for LT power supply ?

1 Answers  

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induction motor. we have a three phase supply from diffrent source like R= transformer. Y = DG sets. B = ups. if motor is runing.

4 Answers   Birla,

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On PVC conduit the class "A" "B" or "C" is marked what does it shows. Either its thickness or its composition?

2 Answers  

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