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Hello Experts
When i apply 600 VAC to the diode bridge after how much time will the Coil pickup , Will it pickup instantaneously or there is some delay ?

 

Depending upon the relay, the delay for the contacts to close after the application of coil power will probably in the 50-100 ms region.

 

Depending upon the relay, the delay for the contacts to close after the application of coil power will probably in the 50-100 ms region.

lets assume that the relay has no delay, i want to know what is the delay caused by the capacitors connected on the right side of the bridge , delay caused by relay is not my concern i want to understand how will be the voltage seen at the coil terminals since i have capacitors

 

The capacitors will not effect the voltage to the coil. (I am assuming the source impedence of the three phase supply can be ignored as you have 60 amp fuses. ) One side of the coil seems to be connected to both Phase B AND phase C. This will short these two phases causing the fuses F2 and/or F3 to blow as soon as power is applied. What is the purpose of this device ? It looks like the 10 ohm resistor is to limit the charging current to the capacitors but it is only relying on the pull in time of the contactor for timing how long that resistor is in circuit. One other point. You are using MFD as units of capacitance. Capital M is normally used for Mega (x 1000000) Even lower case m can have two meanings. It is now used for millifarad (10^-3) but it used to be used for microfarad (10^-6) What do you intend it to mean ?

Les.