what are the components of a start and stop motor control?

Answer Posted / jayaram

suppose the motor is more than 5hp, two contractors,one
timer, two push buttons(no and nc)and one 230v relay is
required.because of star-delta starting.
but motor is below 5hp one over load relay,one contractor
and two push buttons(no and nc) is suffcient

Is This Answer Correct ?    4 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between security constraint unit commitment and security constraint optimal power flow?

1220


Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.

1701


We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

1641


any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?

1824


what is 400kv doble circuit quadpole tower?

1484






High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

1636


1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1288


What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

1635


How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

1355


What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

3145


What is the main cause of magnetism?

1593


Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

1574


placement paper samples of mspl company

1518


what are all the components required to assemble solar panel other than pv cell?

966


I have motor of 3 H.P. How i found the rating of capacitor use in it in single phase motor..???

2141