Answer / sheikh

this is not possible that without any reason motor going to
be off . your star delta control or power circuit may be
wrong other wise motor may be faulty.

Answer / ashok

Control circuit wire is loose conection..
Check the control circuit wire,in adanblock and
Coil side...

Answer / sl singh

May be main supply is cut

Answer / zeeshanakbarz

it can be off on process interlock.

Answer / shiva

check the olr its may trip inside the panel board..

Answer / dinesh kumar

check the load amps of the motor and bearing conditions of the motor and the olr current settings and check the terminal loose connections

Answer / sakthivel k

Check the load current there may be a chance due load side issues. Also check for the motor noise is there any noise in bearing / housing. You may also check the load coupled/connected with this drive.

Answer / julhash ali ahmed

Check the relay capacity. Motor may be stakes.Relay range will be 14 to 18

I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.

1 Answers  

can u please tell me how VFD(variable frequency) drive is used as a energy saver....?

12 Answers   Essar, Oracle,

what is the difference between OSR and BUCHHOLZ relay of transformer?

1 Answers   Bhushan Power Steel,

During Millivolt drop test current leads are applied in the extreme ends and voltage leads are given just before the current leads.. what will be the difference if voltage leads are given in the extreme ends? and why?

1 Answers  

we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

0 Answers  

in star connected 4wired transmission system ,what happen if the neutral is grounded . or not grounded. which is significant and y

2 Answers  

how we calculate capacitor bank mvar for 11 kv distribution networ , and i need releation between capacitor bank with voltage, frequency, current, pf

2 Answers  

In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 Answers  

Can we get the shock if Power system is unearth means delta type take an rated voltage as 6.6 KV?

9 Answers   Reliance,

What is the difference between the transmission line and distribution line?

0 Answers  

Pleasd Tell Me..... In Generating Stations Why The Generation Of ELECTRICITY Is In 3 Phase Form?? OR In Generating Station Why We Generates The ELECTRICITY In The 3 Phase?? Why Not In The 4 Phase, 5 Phase Or 6 Phase Form??

3 Answers  

detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron

0 Answers