what will happen if secondary of potential transformer
(220kv/110volt) of any metering core or protection core
(cables) of any phase got earthed??
As the secondary voltage is only 63.5 V wrt ground ,nothing
happens if the contact is with the dry earth . If there is
any dip in voltage or blowing out of fuse under other
conditions , energy meter may record less and the distance
relay may act in the protection scheme with directional
relay becoming non-directional
| Is This Answer Correct ? | 0 Yes | 0 No |
what is the reason for earthing static equipments? why?
Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?
What is difference between 3 point and 4 point starter
1 Answers Genco, Kaltec, TATA,
Can we use the Poly Phenly Sulphide instead of Poly Phenly Ether? Do clarify your opinion.
my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.
how the direction of rotation in a dc shunt motor could be reversed?
can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?
What are the types of lighning arrestor protection system? how to choose that according to load?
What is single break or Double break related to MCB?
What is the difference between synchronous asynchronous memory?
how to convert psi into kilo pascal? what is the suction pressure & discharge pressure of chiller?
What is effect of low pf on HT supply.
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)