Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

1 Answers  

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how is differential relay working in transformer.comparison with generator defferntial relay

1 Answers  

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What are the fire Estingushers use in electrical fire?

3 Answers  

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Haw to check conductivity of budbar

0 Answers   Adlec Power,

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how to calculate the megger values for motor, cables and transformers?

2 Answers   ITC Infotech,

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What is the Maximum Power generation capacity of a Synchronus Machine ??

0 Answers   ETA, NTPC,

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What is transposition in a transmision line?

2 Answers  

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if 40 watt bulb has higher resistance then a 100watt bulb then according to joul farmula p=I^2R the 40 watt bulb more power consume then 100 watt bulb.

5 Answers  

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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how can calculate static 3phase 4wire CT & PT operated energy meter constant when calibrating using refference meter suppose we have 11kv/110v PT and 30/5A CT, the meter constant is 160imp/kwh, where meter is showing MW energy? give me solution which constant i feed in my refference meter for calibration of energy meter?

3 Answers  

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What are the different types of circuit breakers?

3 Answers   IOCL,

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what is mean by PIR in circuitbreaker and give me detail of that?

0 Answers  

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