What is the difference between MPCB and OLR?
Answer Posted / murugesh
OLR is the relay which senses the overload current i.e more than 100% of the motor capcity, whereas MPCB breaks the circuit during shortcircuit i.e current in the range of 5 to 10 times the rated current.
| Is This Answer Correct ? | 18 Yes | 3 No |
Post New Answer View All Answers
In Designing the rating & accessories of a MCCB how to choose the type of releases..means what is the basis for selecting, thermal magnetic, electromagnetic & microprocessr based releases
Dear all, how we select the cable size according to current with or without including different correction factor , is there any direct method for sizing of cable...
I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?
Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?
Should power factor be low or high?
We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.
sent to a site and asked to explain how you would like a twenty seven flour building should be supplied with lighting and sockets plus a water boiler.
What Is HO factor in power selection
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
What is the use of Surge Capacitor in LAVT?
Which material is used for the core of a transformer and why?
What is the difference between isolators and electrical circuit breakers? What is bus-bar?
Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?
can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?
HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U