what will happen if any motor runs long time with star
connection in400vA.C. system

Answer Posted / hemant

normaly in star connection motor take very less current as
compare to delta connected. because of current get root 3
times less than phase current. in fact motor almost take
low current but low power factor also. you must know how
much load give to motor if motor load is hgh and its
connected star then it unable share load whether it requre
to delta.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3088


If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

1556


Why arc quenching is used in Diode ?

1565


Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

1495


How much minimum insulation required between 11kv/3.3kv transformer windings?

1971






how can we design robots

1453


Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1193


difference between Ac and Dc mcb ????

1124


In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

1493


how we calculate electrical load on a building according to area?

2258


How servo stabilizer works.

1632


what is the synchronous timer ? and it applications.

1899


What about electrical Units. discrive in detail

1501


If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.

1470


How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

1486