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why a tester wont shock while testing the power in house
how much excitation voltage required to generate 1mw power?
What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2
What are the necessary components of the feedback control system?
sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....
give me applications of sequence bridges . (used in 3 phase un balanced systems)
1.What will be stored in online ups EPROM IC?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
What is the maximum operating temperature for a thermoplastic insulated cable?
what are the problems that generally occur in power flows??
If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
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<
george phenomenon of synchronous machine
If short circuit ratio is high is it bad or good for a machine then tell the reason...
HOW TO CALCULATE THE VT SIZING?
