What happens to voltage when current is zero?

1239

is it true there's a big difference in using Cummins or Denyo...especially power output or leakage

1905

When and where resistance earthing is used ? How to calculate the time constant for earth fault

1767

Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

2155

how indusrial diesel generator work

1872

How to convert 2 phase to 3 phase electricpower in induction moter?

2069

what is the advantages og idmt relay over magnetic relay??

4194

54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?

2146

what material is the electrical housing wire made of? is there any difference for the telephone lines?

1935

What difference between ref protection and differential protection ?

1799

What is inverse definite minimum time lag relay? Where is it use?

2789

why we are not giving the zone 1 trip command to the master trip relay

1705

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

2275

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

1982

What is meant by harmonic distortion?

1070