Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??
2 6419how to calculate voltage drop in long distance cable? for an e.g lamp of 12 volt ac ,300watt is 90 meter away from supply i.e (x'mer 230 v / 12v)and i m getting 8 volts at lamp terminal ....
1 4041In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?
1985One of the advantages of HRC fuse links is that they can be used to back up equipment with an inadequate rupture rating. briefly discuss what this means
1 5399What is meant by the KA-rating of a circuit breaker? In this regard, discuss the stresses experienced by the circuit breakers
3 13390How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay
1 3731Post New Electrical Engineering Questions
what is solkor relay and which condition it will act?
how can i improve the power factor in domestic (230v)
What is an automatic controller?
How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.
What are motor generator sets and explain the different ways the motor generator set can be used ?
if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
Define early construction of human being
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)
is it necessary to earth the rmu before cutting off the transformer winding?if yes why?
1.how many types of relays? 2.difference between ATS& STS?
What is the cut-off rate?
how balanced in star delta connection ?
who can measure the size of power cable?
The loads are connected with phase and ground then why current flow as the loads ?
