what is diffrence b/w -48vdc and +48vdc ?

1 Answers  

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Generator,motor and alternator Working principal Please explain easily

0 Answers  

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While performing load test on DC SERIES MOTOR, does the voltage decrease slightly. Why?

2 Answers  

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hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet

0 Answers  

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how many synchronous motor are there in any power plant

0 Answers   L&T,

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ALL HT /LT PANEL TEST? DISCRIPTION.

0 Answers   Essar,

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Between AC generator(alternator) and DC generator which can be designed for high voltage and why?

1 Answers  

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what to do with nuetral when Generators are running in parrellel

11 Answers   APTransco,

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differnce between single acting and double acting solenoid valves

0 Answers  

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In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

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If the primary side current of 33/11 transformer is 64 amps then what will be secondary side current?

2 Answers  

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Why dont we get shock while testing for voltage with a line tester? How the bulb inside the tester glows while testing with tester coz we are totaly isolated from earth or we are not giving close path for the current to flow?

3 Answers  

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