Trip Circuit Supervision Relays (F74) -VDF-10 (Model) – VDJ-30 (Model)

Arteche F74 series Trip Circuit Supervision Relays (VDF-10, VDJ-30) ensure continuous monitoring of the trip circuit integrity of medium-voltage and high-voltage circuit breakers. These relays detect failures such as open circuits, coil disconnection, blown fuses, and wiring issues in both live and dead conditions. With fast detection and alarm outputs, the F74 series prevents protection misoperations and improves breaker reliability. Designed for harsh substation environments, the relay complies with IEC standards and offers robust immunity to vibration and electrical noise.

Models: VDF-10 / VDJ-30

Key Features

• Continuous trip circuit monitoring

• Detects live and dead trip circuit failures

• Alarm outputs for immediate notification

• High immunity to EMI/EMC

• Long service life

• Panel/DIN mounting

Applications

• MV/HV circuit breaker supervision

• Substation protection panels

• Protection scheme reliability

• Industrial power distribution

Keywords

trip circuit supervision relay, F74, VDF-10, VDJ-30, breaker trip coil monitoring