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All about Motors
Switching of capacitors |
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| Contactors for
capacitors DIL |
| Individual circuit without quick-discharge resistors |
Individual circuit with quick-discharge resistors |
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| R1 discharge resistors fitted in capacitor |
R1 discharge resistors fitted to contactor |
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Two-way pushbutton
For connection of further control circuit devices: →
section Control circuit devices for star-delta
starting
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Two-wire control
In the case of actuation by means of power factor correction relay,
check that this has sufficient power to actuate the contactor coil.
Interpose a contactor relay if necessary. |
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Method of operation
Pushbutton I energizes contactor Q11. Q11 energizes and maintains itself
via its own auxiliary contact 14–13 and pushbutton 0. Capacitor C1 is
now energized. Discharge resistors R1 are not operative when contactor
Q11 is energized. Actuation of pushbutton 0 effects de-energization.
Normally closed contacts Q11/21–22 then switch discharge resistors R1 to
capacitor C1. |
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