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Trigger Circuit of Powerful Devices

Trigger Circuit of Powerful Devices

When the powerful devices started, a large current passes through switches. The powerful relays are used for overcoming this problem. It is possible to use low–powerful buttons. On the circuit an example of switching on/off powerful motor is shown. One of the button is used for motor switch on, other – for the motor shutdown. A circuit works on principle of trigger Start/Stop. After pressure of the Start button from any phase Fa, Fb or Fc a current pass through the winding of relay, and retain all his powerful contacts in the close state to the moment of pressure on the Stop button. A relay de-energize and turns off the powerful device.

Trigger Circuit of Powerful Devices

added 12.05.08 22:10:07 | looked over 10311 times