What is the difference between MPCB and OLR?
Answer Posted / nithyananthan
hi. the olr and mpcb both are the protecting devices. but
the olr senses the current of winding capacity. means the
maximum current which does not cause the winding
insulation.it always connected in the starter.
but the mpcb sense the over current by means of load. the
phase to phase short, and the dead short are sensed by the mpcb.
| Is This Answer Correct ? | 9 Yes | 3 No |
Post New Answer View All Answers
what parameters are should nessary for control technic dc drive(in rolling mills)?
How does a battary stores charge in it? please explain in simple manner and in detail.thanks
what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.
is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details
What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?
how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?
difference between the applicability of nortons and thevenin theorem
What do you mean by transformation ratio of instrument transformer?
hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds
Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007
i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.
what is the synchronous timer ? and it applications.
can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?
how to measure dc earth leakage current?
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?