how to select a breaker (MCB,MCCB,ELCB) for 18.5 kw, 3 ph.
480 v, 60 hz induction motor?
- 4 Answers
- 34122 Views
- I also Faced
- E-Mail Answers
Answer Posted / jayaraj
P=Sq rt 3VI pf
So I = 27.8 Amps. considering the staring current twice as full load current = 55A so 63 A MCCB required. Depends on the KA of the system 25KA or 50 KA MCCB can be selected.
| Is This Answer Correct ? | 13 Yes | 17 No |
Post New Answer View All Answers
Give some differences between open loop and closed loop?
The shot circuit in any winding of transformer result? Explain
How many devices can be connected in one zone of FACP
IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)
Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?
Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?
Pl. give me checklist for installation & commissioning of machine tool.
EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
why does the magnetic balance tests at transformer?
What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?
I want to do a mini project. Now I'm studying in 6th semis tor EEE Engineering.
what is the differation bewreen kwh & fundamental kwh in electronic trivector meters
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?
