What is the fuction of UV & how it works in circut breakers?
is it one type of relay?
Answer Posted / g.ravikanth
Its an under voltage relay which will breaks the circuit.
when voltage goes under the rated voltage, it will be
physically made of an under volt coil connected to relay
| Is This Answer Correct ? | 12 Yes | 2 No |
Post New Answer View All Answers
how many single tension hardware are required on a double circuit transmission tower?
Is it posible to instal one more SMDB from the existing SMDB and is it practical.
Why back emf used for a dc motor? Highlight its significance.
what is integrated ac contact circuit
i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com
what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.
what types of electrical & mechanical test conducted in switchyard?
State the other types of Air Conditioners?
What is an ac motor?
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
What are the advantages and disadvantages of closed-loop control system?
How can we measure the residual voltage in dc machines?
Is it possible to connect a safety device in to parallel?
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
how to design coil turns ?