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What is the diameter of electromagnetic field around a 11000/415v transformer ? Dose it affect people who live 3-4 meter beside it?
2083when we start the tube light, then it takes initially 1100 volt, after glow it takes 120 volt?(when we give 220 volt a.c.)
3 6490PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F
2179One of our gas turbine generator unit "1st stage rotor ground fault" alarm was occured several times. we tried to measure some voltage vulue ground fault protection relay (UNS3020a made by ABB and we measured the value of: Ground: 0.9VDC 5V: 5.8VDC 24V: 23VDC u+: 300 – 350mVAC Rf1: 17.5mVAC Rf2: 17.6mVAC The unit still running and the alarm was reset. As of 6pm yesterday and unitl now no alarm happened again. I our protection relay was defective?
1 4411when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why do I get a reading to ground when meggering phase to ground? shouldn't it read opened or is there something that makes it read closed? on the same heater, when ohming, it reads open. thanx
1 5324Post New Electrical Engineering Questions
In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.
hai now i am working as a electrical design engineer in construction field can i get a job in oil and gass field or power plant project as a electrical design engineer?
hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com
WHY NUTRAL GROUND SYSTEM USED IN 33KV SYSTEM
What happen if we apply square wave or traiangular waveform voltage to the transformer primary winding instead of sinusoidal wave?
What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.
If Neutral Grounding Resistor (GR) failed/shorted. Is it repairable.
How to size Air Circuit breaker (ACB)? What is the most important factors?
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
How to work meggar?
what is the difference between the characteristics of two different phase bushing of any transformer
Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????
Name one of major transformer company in KSA ?
What is the practical way to calculate the cable size for known ampere load?
