what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

0 Answers   KPCL, MDIM,

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Wat is da difference b/w neutral earthing and unearthed system?

2 Answers  

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CONTACTORS ARE MADE UP OF WHICH MATERIAL?

6 Answers   IOCL,

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Which ciass CT can be use in diff. protection. Can be use 5p20?

5 Answers  

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what will happened to give the dc supply to ac transformer?

3 Answers   Sail,

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state the working principle of incondenscent tube?

0 Answers  

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Is a current transformer step up or step down ?

2 Answers  

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When we use 3 terminal resistor?

0 Answers  

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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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Why don't we provide SURGE ARRESTORS for Transformer feeders?

5 Answers  

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what is the difference b/w earthing and grounding??

2 Answers   Dodsal,

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Draw SLD feeding from the SS up to distribution board of the load, calculate cable size, breaker sizes, and meter for the following case: Ground Floor: electric room, pump room, 5 shops, each is 15 KW First Floor: 5 shops, each is 15 KW Second Floor: showroom 30 KW Service Loads: water pump 3 KW (3ph) , fire pump 3 KW (3ph), and one DB service 12 KW (3ph).

0 Answers   FEWA, HMK,

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