How can calculate rotor temperature of the alternator? and is there any method to calculate that

1 Answers  

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How earth resistance reduses by pouring water coal and salt?

4 Answers  

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why are the a.c.series motors preferred for electric traction

4 Answers  

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witch pump used in wtp

0 Answers   Dalkia,

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In a running D.G set engine and Alternator is revolving at 1500RPM but no output in the terminal>>>>what to do?? someone told excitation problem ....please advice

3 Answers  

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How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

0 Answers   BARC,

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what is principle of DG

5 Answers  

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how can we calculate the reactence of the current transformers?

0 Answers  

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how calculate gd2 of ht motors

4 Answers   Hindustan Copper Limited, Kohler India,

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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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how tto ingress mw in turbine explain.procedure ?

0 Answers   Power Grid,

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how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

0 Answers   Asahi, BARC, K-Electric,

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