Answer / suryaraj

Gas Insulated
Substation

Answer / raju

in maping filed it is geographical information system

What happen when switch yard one pole not tripe when you tripping the breaker

3 Answers   Adani,

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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if we connect a ohmmeter across shorted capacitor .what will be the reading..will it be zero or infinity

2 Answers  

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In CT's they mentioned 400/5 or 1250/5, 1000/1 here 400,1250,1000 is Breaker Capacity what is the /5 Explain me briefly

2 Answers  

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electric shock is due to current r voltage.?

12 Answers   National Steel, TCS,

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PLEASE SEND THE PREVIOUS YEARS QUESTION PAPERS OF RRB JUNIOR ENGINEER-ELECTRICAL

0 Answers  

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Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

1 Answers   Care,

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Why 1/3 is used in symmetrical components?

0 Answers   ABB,

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We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

0 Answers  

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why capacitor is placed in fan

4 Answers  

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all types of electrical quations

1 Answers  

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How will you calculate the correct KWH value if your CT is 600/5 and your KWH meter is rated for 100/5

1 Answers   L&T,

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