Description

Siemens Reyrolle 7PJ15 HIGH SPEED TRIP RELAY

The 7PJ1521 and 7PJ1524 High Speed Trip relay is a multi-contact attracted armature relay designed to IEC 60255. High burden relays with immunity to capacitance discharge currents. They are also suitable for certain applications where they are remote from the initiation signal. A high burden also permits reliable operation of current operated series repeat relays. TR relays can be provided with an instantaneous or time-delayed cut-off. Benefits The features of the High Speed Trip Relay are:? High speed, high burden, positive action, and instantaneous cutoff.

• The 7PJ1524 trip relay can be used with the Trip Circuit Supervision relay (7PJ13) to monitor and supervise the integrity of the trip circuit with coil supervision terminal.
• It is supplied in a draw-out type case.

The 7PJ1521 & 7PJ1524 high-speed trip relay is a multi-contact attracted armature relay designed to IEC 60255.

Features

The features of the High-speed trip relay are:

• High-speed, high burden, positive action, and instantaneous cutoff.
• The 7PJ1521 & 7PJ1524 trip relay can be used with the Trip Circuit Supervision relay (7PJ13) to monitor and supervise the integrity of the trip circuit with coil supervision terminal.
• It is supplied in a draw-out type case.

Functions

The high-speed trip relay type 7PJ15 is mainly used for all types of control and protection circuits in power stations and industrial applications, where a higher grade of reliability and high contact rating is stipulated. The 7PJ15 relay acts as a high-speed element and contact multiplication in tripping and signalling circuits of protective relays.

• The high-speed trip relay is used in the following applications:
• Tripping of multiple circuit-breakers
• Tripping and lock
• Control signalling and interlocking
• Inter tripping and remote tripping interface for SCADA

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