If a ACB breaker is tripping and closing problem, then what will we check internal..?
Answer Posted / naveen joshi
closing and tripping of Acb (for local and remote) associated with coil (uv, shunt,closing) check wheather proper continuos supply to uv coil and closing and tripping circuit to the coil.if not works than it's breaker mechanism should be checked.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is reactive power?, why its measured in VA ? is it transient behavior of system?
What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?
If Dg set load increase 25%, How much increase fuel Consumption (15 kva 2 cylinder DG set)
Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?
physical identification of HT & LT panel
how to store the thunder power?
what is saturation kit?which use above 15 kw motors panel side.
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.
We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.
If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?
Bimetal strip used in overload relay what is that,which types of material used for that & percentage.
What is critical disruptive voltage?
how external lighting design? please give examples?
How to design the NGR Resistance
What is the meaning of loop in transformer