Three-Phase Trip Circuit Supervision
The relay is for supervision of the trip circuit of a circuit breaker with three selective trip coils. The trip circuit wiring is supervised from the positive supply to the negative supply whilst the circuit breaker is open or closed.
Due to their quality, reliability and design, these relays are optimal for applications requiring high reliability and availability such as power stations, substations, railway and industrial plants. Typical examples include petrochemical industry, chemical industry, cement industry, rolling mills etc.
The relays comply with the IEC, EN, IEEE standards (type and routine test) and bear the CE mark.
The robust switch contacts are characterized by high make/break capacity, overload capability and continuous current intensity capacity; thus perfect insulation is obtained. Direct control of high-voltage and medium- voltage switchgear is possible.
The design, quality and rugged construction of the relay make it suitable for applications requiring high levels of reliability/ dependability. The high degree of protection guarantees reliable operation over a wide temperature range, even under extreme environmental conditions.
The relay has been tested in accordance with IEC, EN and IEEE standards. The relay is CE marked. The supervision current is always less than 1.4 mA thus avoiding unwanted operation of the trip coil. Correct operation is shown via a green LED.
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