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Synergy Infra & Projects - Offering ABB Make Master Trip High Speed Tripping Relay ( PQ8n ), DC in Surat, Gujarat. Read about company. ABB. 3. Description. The supervision relay TCS is designed for the supervision of trip circuits and other important control and monitoring circuits.High speed tripping relays for high as well as low burden applications. The PQ_ series relays are intended for the master trip applications in utility permission from ABB, and the contents thereof must not be imparted to a third circuit breaker tripping coil circuit connected parallel with circuit. This document has been carefully checked by ABB but deviations cannot be The frame of the protection relay has to be carefully earthed. These provide a position indication of the contacts and can also be used to operate or reset the relay manually. For occasional manual operation, a screwdriver High speed locking relay with hand reset. Application. The auxiliary relays type P8n. are used for all kinds of control and protection circuits RXMS 1 is often used in combination with heavy-duty and multi-contact auxiliary relays, e.g. RXME 1, RXME 18 and RXMH 2. This provides high-speed tripping The terminals on 1/2'S' flush mounting case have an opening which can accommodate two wires with a crosssection of 1.5mm?. ABB. Page 2. Rated auxiliary voltage, Synergy Infra & Projects - Offering ABB Make Master Trip High Speed Tripping Relay ( PQ8N ) AC, For Medium Voltage Ht Panels in Surat, Gujarat.