what will happen if a 3 phase motor is connected to a single
phase circuit and vice versa?

Answer Posted / karthik

a 3 phase machine is used for high power application and the rotating magnetic field is created by the 3 phases hence when it is connected to a single phase supply we will not be able to create a rotating magnetic field unless the field is connected along with a capacitor or inductor to create a phase difference. but whena single phase machine is connected because of the inherent phase lag between the various phase of supply.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

transformer phasor diagram under load explain it?

1664


Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

1705


what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

2426


oil cooled transformer

1766


how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

1711






what is meant by twilight switches 7 where its applicable ?

1415


what is the difference between Power and Distribution transformers ?

1634


How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?

1575


what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that

1773


we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1632


what is the usage of microcontroller in the panel board?

1549


Why human body feel electric shock?

621


What is the differentional relay...what is the work of this in power Tx. how it is works..

1445


A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

1838


Zone of protection and tripping scheme of arc protection relay.

1402