Which is remain unchanged in transformer action?
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how long will take to burst/damage for a CT when secondary in open condition? Experienced: During switchgear testing(Primary current injection test) some of the CT are in open condition, but nothing happen's why?
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.
State kirchoff voltage law?
IS there any special instructions to be taken while installing the tranformer.
How does a digital electronic meter work??????
what are the effects of variations in frequency when you are connected to national grid??
Define cuttoff frequency?
Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.
What is the function of an Auto reclosure relay. How does it work??
which surface is suitable for NEUTRAL GROUNDING ?
What is the difference between Earthing and Neutral?
In oil transformer which oil is used & what should be the insulation resistance & heating capacity.