what is the order of mgnetiation current in a current
transformer of 1000A/1A ratio?
Answer Posted / anand suresh
as no load current is about 4-5%of full load current
magnetisation current would be less than that i.e 2-4%of
full current so maanetisation current would be around 2%of
1000 i.e, 20A
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
please send me privious exam's queation papers of section engineer(electrical).
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)
what could be the RMS value and average value of a 4 phase sine wave?
which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter
What are the two segments of nyquist contour.
What's mean HVF & HAF in Vacuum Circuit Breaker?
Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)
How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors
Could you measure voltage in series?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?