Answer Posted / fazul
voltage is constant for dc supply.
hence current is also constant for dc supply.
hence the frequency of dc supply is zero.
Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
How to test lightning Arrester?
What is domestic transformer? Draw the connection of domestic transformer.
Define sensitivity?
What Is HO factor in power selection
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
power transmission pole used one support , that only for support or earthing
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?
i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....
What is time response of the control system?
Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry
HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS
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 ?
please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com
63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?