hi i will D.E.E.E.is completed pls send rrb diploma old qustion papaer sent in my e mail. i.d.
What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?1293
Meaning of CTPT ,how it works &how it measures the reading on trivecter meter,&what is trivecter meter1 25775
why bucholtz relay placed inclined in transformer?1 4035
What is the function of a turbo charger in a 1000kva DG set6 14875
How do you protect your appliances from harm in case of neutral failure in a three phase power supply set up.4 5449
MCB Rating1 1921
can any one list the class-a, class-b & class-c trips of power generator?3 8679
why we avoid parallel operation of diesl generator?4 5748
IN 1000kva transformer where the oil and winding temperature sensors is connected1102
please send me previose rrb junior engineer qustion papers
can we use NPT glands in LT panel
Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?
what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?
is it value of power factor is more than unit. whats effects in the source supply
What is meant by impedance? difference between high & low impedance ?
why d.c produces corrosion
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
How two nos. 130 kw D.C motor get synchronise using D.C drive.
On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?
What is difference between YNyn0 and YNyn ??
PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F
What is the working principle of servo motor? And explain it.
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB
Where can I get Iidian straderd specifications for electrical items or works in web? please help me.