is it possible to flow a current between nutral and earth
in a circuit? although nutral and earth having same
potential diffrence?
i=0/r=0A
if any body now any solid reason because i am getting a
triping problem in rcbo due to nutral and earth shorting???
Answer Posted / kj
The reason you are getting tripping of the RCBO is the way
the RCBO works.
The RCBO senses the current in the phase and neutral. As
long as these are balanced it will not trip. It is designed
to trip if there is an inbalance. This is usually a current
flow between the phase and earth which is then not returned
by way of the neutral.
When the is a short between the earth and the neutral it
provides a parallel circuit. Some of the current will flow
through the earth and some through the neutral as they are
now connected together on both sides of the RCBO. The RCBO
senses an inbalance because not all of the phase current is
flowing back thriough the neutral and it therefore trips.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the diffrence (Technical & Construction ) between CBCT & Normal CT?
What is sensitivity of a measurement?
What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?
please send me RRB electrical engineer previous year questions for Sr. Section Engineer
What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.
SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS
how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???
what is dry and wet frequency withstand voltage? why & where it is used??
HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM
Sate maximum power transfer theorem?
What is safety of Ht panel
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
Earth has zero potential then what would be the neutral potential ?