how to calculate cable size, olr rating, contactor rating
and mccb rating,to below given details three phase motor
75 kw,415 v,.85 pf,50 hz?
- 5 Answers
- 71222 Views
- Cabin Crew, Essar, I also Faced
- E-Mail Answers
Answer Posted / v.raguvaran
THE MOTOR AMP IS 130AMP.THE CABLE(USE COPPER ) SIZE SHOULD BE 45sq.mm (delta connection),35sq.mm(star delta)
OLR RATING IS (125-135) BUT STANDARD SIZE IS (130-175)ABB
CONTACTOR RATING IS 200A(DELTA),100(MAIN)-100(DELTA)-50(STAR)
MCCB RATING IS 250A
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how to modify DOL control panel into Delta Y connection?
what will be the effect if you were using different brands of outlets?
What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?
Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.
PAC and simple Ac different
What is the function of under voltage release ?
dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai
How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.
why are the maintaine power factor and how can this control and this is how work.
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
what is Anti-pumping?
What is the meaning of Insulation H for transformers????
What is a Phase shift meter? Where can I get one?
How to design pavement quality concrete by using C.R.C.P Method
