Which is the largest hydropower station in the world?

0 Answers  

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why we use single core 630mm2 cable for transformer secondary side

0 Answers  

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1) What is difference b/w impedence relay and differential relay? 2) what are substations equipments? 3) what is difference b/w circuit breaker and isolator? 4)what are the types of circuit breakers? 5) which medium is mostlty used in circuit breakers and why it is used?

1 Answers   NTDC,

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what is difference between line differential and transformer differential?

0 Answers   L&T,

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Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

1 Answers  

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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what is the sweep commenly used 1200mm sweep and 600mmsweep please tell me breifly sweep

1 Answers   Khaitan,

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What is trip and closing coil in cb? Why need of them

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how we select ac fuse rating of an power inverter???

0 Answers   Simco,

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which have higher efficiency transformer or induction moter

8 Answers   BARC,

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what is the significance of positve n negative voltage regulation .on alternator

1 Answers   TCL,

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what is the use of capacitor bands?

2 Answers  

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