why does chattering take place in ac contactors?
can it be avoided & what care does the manufacturer take to
eliminate this phenomenon????

Answer Posted / raghu

It is mainly because of
voltage drop at
contactor..increase the cable
core size with spare core

Is This Answer Correct ?    4 Yes 14 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Difference between rating factor of cable and derating factor of cable?

1189


Type of motor stater detail and working detail

1269


3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

2241


How can I known multiplying factor .without multiplying table

1362


boiler is running in rankine cycle and deisel generator is....?

1575






how does a submersible pump work..?

1414


What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

1559


why are the maintaine power factor and how can this control and this is how work.

1489


Why is voltage is required to be within permissible range for an electrical equipment?

1272


What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

1678


how many Classification of fire extinguisher

1675


is there any role of power factor with frequency variation? and how we can manage the frequency variation?

1639


What is the dependency of stiffness on load angle??

836


i am in need of AC SYNCHRONUS MOTOR 30KW. ANY ONE KNOWS THE MANUFACTURER OF SAME. ALSO MOSFET AC CONVERTER 20KVA CONT.OUTPUT.

1474


Why AC & DC capacitor are use in UPS ??????????????????

1597