WHEN I AM CONNECTIN TWO ELCB IN PARALLEL.ONE ELCB
TRIPPED...HOW IT HAPPEND??
Answer Posted / vinod
When two ELCB in prallel sending current & return current
of each ELCB will not be equal (example one ELCB is
sending 4 amps to the load but due parallel the retun
current from the load to the same ELCB may not be 4 amps,
retun path through other ELCB treat as a earth fault, so
one ELCB will trip.
Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
Define characteristics impedance?
how much UPS neutral erath leakage current.
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
why is the conservator tank painted white on the transformer
11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??
L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
why the value of k is more in shell typr transformers?
how to maintain frenquncy with syncronising sub-station for distribution
What is inrush current?
what is the difference between active power and reactive power and apparant power in practical as well as theoritical
1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?
can u give me a brief idea about power line carrier communication ??
what is mean by transition resistance of transformer?
What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?