Three-phase phase and phase sequence protection relay how wiring, but also what accessories? How I connected to the power after the end of no electricity
Phase sequence is not right or phase, phase sequence protector contact action, the middle relay coil action, disconnect the total power contactor control loop. So that the power supply of the entire device is disconnected.
Only the bottom of the contact control, no internal power supply, the need for external power supply, usually use the phase sequence protector to control the relay relay relay, and then through the relay relay control the total power contactor.
Phase sequence protector wiring does not require other accessories, the top three wiring points connected to the three-phase power line FireWire.
