why induction motors are of lagging type and not leading
type

Answer Posted / jagadeesh

because induction machines are single exited machines.
but synchronous machines are double exited, in case of
double exited machines pf can be controlled by using field
excitations(pf it may be a lagging or it may be a leading)

Is This Answer Correct ?    42 Yes 11 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.

1553


1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

5593


WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

1807


why should the lowest unit of a testing transformer ( cascaded transformer ) have higher power rating??

1874


what is kondo syatem in eletrical traction

1655






WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

1430


What is corkscrew rule?

675


As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

1183


For a stable system, where should the poles of a system be in a root loci plot?

721


What is a diode?

616


WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1556


HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

1635


what can be the causes of capacitor start motor having a higher current that its actual

1494


What are the special cables required for explosion proof wiring?

2969


what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2129