Contactor Sizing and Selection | How to Calculate Contactor Size ?

[@bezataye9084]

I am very happy thanks for everything happy new year

[@danielteyehuago1633]

8:20 Please can you use the same procedure for delta connection of motor as well as the star delta connection of motor

[@atananggodwinetim]

Just learnt something new, as I never knew there were specialized contactors for heaters. Thanks for sharing.

[@misheckmotsi196]

Thanks very informative and easy to follow and understand

[@Hard_core_jewelry_plug]

Big thanks for the video

[@ar3ee62]

Your video is great. Try to invest on a pen tab so that you can write properly on your screen.

[@samarsekharreddy]

Good one

[@israeltmachona510]

What size of a contactor would you recommend for a borehole pump domestic users

[@jamalimam8120]

great video!

[@duruchibuikeemma5055]

Thank you very much sir

[@metim3011]

Thanks for good video Need this info on the job

[@SKTWoodDesign]

Thank you for this video, Very informative

[@ivanbratanov8699]

Is this method valid for 75kW (150A) motor as well?

[@L77G34N00]

What a good video, thank you very much sir.🙏

[@mystudies0977]

Thank you

[@danielteyehuago1633]

Very informative, thanks for sharing it with us...dl

[@noelfaithfulkari2857]

Thank you sir. Please could you make video star / delta starter contactor sizing

[@harip9159]

THUMB RULE SELECT THE SIZING OF CONTACTORS, OLR MSIN CIRCUIT WIRES SF UNIT OR MCB TO AUTO TRANSFORMER STARTER, ROTOR RESISTANCE STARTER, SOFT STARTER&VFD STARTER. ALSO REFERENCE BOOK TO SEE THE CALCULATIONS.

[@stepannovotny4291]

This is one of the better presentations, but you should really break out motor efficiency (η) as a separate factor in your formulas.

[@nuruljanah9621]

Thanks for this wonderful video, but could u please sir make a video on the difference between DOL and star Delta

[@ionelrusu7417]

1.5 What is it?

[@harip9159]

PLEASE EXPLAIN THE SIZING OF SPARES OLR CONTACTOR MAIN CIRCUIT WIRES TO DIFFERENT TYPES OF STARTING, DIFFERENT HP MOTORS .WITH CALCULATION,ALSO THUMB RULES TO SELECT.

[@kalikotpangmasa301]

How about 4,000 watts of halogen lamps of 8 PCs, how many amps of magnetic contactor to be used

[@uthpalaavishka323]

tnx darling

[@gillansimpungwe5482]

But why having the contactor with high rating than the main breaker

[@chrissantos7865]

The cb is what protects the circuit the contactor must withstand the current

[@sojithks4728]

👍🏻

[@danielteyehuago1633]

I'm here again to revise

[@kassahunnegash24]

DOL is implemented in low power i.e single phase system;5HP is single phase but u calculated as 3phase HOW?

[@mahmoodmulthajim9290]

The direct online (DOL) starter method of an induction motor is simple and economical. In this method, the starter is connected directly to supply voltage. By this method, small motors up to 5 kW rating are started to avoid the supply voltage fluctuation.

[@mahmoodmulthajim9290]

in here connected load is 3.73 kw

[@jagalreddy9695]

Useful knowledge sir

[@jakejp9569]

Why 1.5 for 50% safety factor

[@mahesh3932]

150%

[@philemonsaina2863]

For safety