Three-phase monitoring/protection relay for overvoltage, undervoltage, sequence/error checking

Voltage monitoring relay with delayed timer for return to operating state, monitoring of increased and decreased voltage, setting of minimum and maximum voltage values, with phase sequence control GKV-12F, TENSE

The operating algorithm of the voltage monitoring relay is as follows:

When the relay is connected to the power supply and the voltage values ​​correspond to the set values, the relay is activated and the relay LED () is lit. When the voltage values ​​exceed the set values, the corresponding fault LED is lit, waits for a delay time (DT), then the relay is deactivated and the relay LED goes out. When the voltage returns to normal values, the device waits for a reset time (RT), after which the relay is activated and the relay LED is lit.

Required settings and error messages

• HV: high voltage setting, if the voltage rises above this value, the HV LED lights up.

• LV: low voltage setting, when the voltage drops below this value, the LV LED will light up.

• DT: delay time, waiting time before entering the error.

• RT: reset time, the waiting time before the relay responds when the voltage returns to normal.

Relay activated: contacts 2 and 3 closed, 1 and 2 open.
Relay deactivated: contacts 2 and 1 closed, 3 and 2 open.

Technical data

• Operating voltage: 3×380 VAC, 50/60 Hz.

• Rated operating voltage: 220 VAC, 50/60 Hz.

• High voltage: 230 V-300 V

• Low voltage: 140V-210V

• Delay time: 0.1 s - 20 s

• Reset time: 0.1 s - 20 s

• Operating power: < 6 VA

• Operating temperature: -20 °C to +55 °C

• Display: 4 LEDs

• Weight: 0.210 kg

• Contact: 5 A / 250 VAC (resistive load)

• Operating altitude: < 2000 m

• Cable diameter: 1.5 mm²