what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?1646
Wtat is vaccum currcuit breaker.define with cause of used.and where be use it Devise .1 2986
Why 4 pole generator generates more power and 6 pole generates less power campare to 4 pole2 5262
Why Batteries are rated as AH i.e AmpereHour,and its formula to converting AmpHour to Amp4 7236
11KW Delta motor is taking about 44Amps in star and goes upto 70Amps in delta and trips OFF. The rated current is 26Amps. Application is for the blower. The motor takes ( no load without coupling impller ) only 2.5A and 5Amps in star & delta starter test.Need to know why its taking high current.10 15865
What is relation b/w Transmission Lines & Communication Lines ?2 7301
WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???1 10389
what is threshold voltage for a relay???what does it exactly means ?whats its value in our indian transmission system say 11kv feeder RMU relay3 10630
if the back emf eqution for dc motor EB=(QPNZ/60A) THEN what is the value of A for PMDC MOTOR OR how can dicide the value of "A"
IF WE SELECT THE 60H FREQUENCY IN INDIA WHAT WILL THE GOOD AND BAD EFFECT ?3 5085
How can we calculate the capacitance of generator?1 2845
What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to email@example.com Thanks and regards Varsha
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?
what are the possible reaons & remedies if resistance of NGR getting heat up
how to calculate energy of 3-phase motor?
what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering
where can the transformer having vector group Yny0 be used??
ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?
hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet
why the rotor current becomes in steady state during high slip region? please verify with equations.
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
why impedance relay is used for medium transmission line protection
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER