what is the role of impedance in transformer?based on secondary f.l.current(139 amps) and impedance(4.07) of 415/415v of 100 kva transformer. what is the primary current?
1 5085Determine the MVA rating of the power transformer given that 110/66 kV,1000 Amps. Folks how can i calculate the MVA rating with this Data??Plz Help........
1 14825how does capacitor oppose sudden chane in voltage? how does inductor oppose sudden change in current?
4 16738show me the diagram of three phase wiring and also tell me hoe to take the readings of megger testing
2 5681any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.
1 3101what is high pot test on 11kv switchgear and how to apply high voltage on panel what is spheare gap and how to determine its celeberation.
1 5771Should the neutral earthing of 33/11KV D-S transformer, be connected to the earth grid?(Yes/ NO) why?
1 4695Post New Electrical Engineering Questions
how wecalculate breaking capcity of acb mcb mccb .explain with example
Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?
What is core CT & it's function?
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor
why transformer tank is in rectangular shape what happen when it is in step shape
can i use 2000/5A Clamp meter to measure HT cable
why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?
Why temperature rise is conducted in bus bars and isolators?
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.
state the disadvantages of carbon filament???
Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
What is the difference between alternator and generator?
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?
