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why lightning arrestor are made by 2 stack of insulator but why cvt are fully 1 stack of insulator.
1 4190How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.
2150what is the working principle of energy saver control panel. please give the complete calculation & theory.
2461For what purpose an AVR in generator sensing generator output voltage?and how the sensing is done by AVR?
3 9048Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.
HAL,
2104Is it possible to use AC supply insted of DC supply in trip coil operation? if not, why?
HAL,
5 7672How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?
HAL,
2140Post New Electrical Engineering Questions
WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?
Give some differences between open loop and closed loop control systems.
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
what is meant by tranformer impedance?
What is the difference between diode and a transistor in terms of the direction of current flow?
The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.
The loads are connected with phase and ground then why current flow as the loads ?
why is the conservator tank painted white on the transformer
Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.
what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.
Difference between RCCB, RCBO and ELMCB.
11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??
Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)
sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan
Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?
