Answer / pswin

You ask the value between L,N and E. So I will assume that you will test for single phase and the test voltage must be 500 v scale and full scale is 100 mega ohm.Minimum value should be 0.5 mega ohm between each conductors. If lower than that value, the cable or wire is not certified to use. For three phase, above answer is acceptable,too.

why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 Answers  

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why can't we increase the voltage by increasing the field voltage in order to get higher voltage.so that we can eliminate step up transformer

4 Answers   Bhel,

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Are we do it in single transformer with dual primary as 11 KV and 33 KV and constant output as 415 Volts?.

1 Answers  

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Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 Answers  

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advantages and disadvantages of inverse definite minimum time RELAY

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In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

2 Answers  

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explain different types of d.c motors?

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HOW TO CALCULATE THE ILLUMINATION IN INDOOR LIGHTING?

0 Answers   L&T,

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what types of load we get from the national grid? is this capacitive or inductive?

1 Answers  

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Why Ac Systems Are Preferred Over Dc Systems?

0 Answers   ABB,

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what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 Answers  

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

0 Answers  

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