how many frequent start/stop operation possible in case of
HT MOTORS.

Answer Posted / anil bhtia

given as 3 or 2 but what is unit? ie per day/per minut/per
hour

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

1529


Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz

1790


Describe Non I.S. Earth System and why is it used?

1284


what is is the potential diffrence between two phase ?

5339


which network topology offers the greatest level of tolerance?

1569






Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

943


describe the Operation of induction generators from bus bars

1792


what are the application of over current relay?

4206


hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

1537


What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

1551


can any one suggest paper presentation topies for electrical engg?

1484


State the points to be considered for selecting a particular type wiring.

1609


current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

1147


temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1477


Why an ac systems are preferred over dc systems?

622