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Siemens Reyrolle 7PG17 Interposing and supervision relays

Siemens Reyrolle 7PG17 Interposing and supervision relays
Siemens Reyrolle 7PG17 Interposing and supervision relays
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Product Code : 7PG17
Brand Name : Siemens
Product Description

Reyrolle 7PG17

The range comprises electro-mechanical relays for a range ofauxiliary and tripping functions. Various combinations of coils, contacts,operation indicator flags can be specified. Options are also available foroperate and reset modes. 7PG17 XR relays - Interposing relay for controlapplications, supply supervision, trip circuit supervision, ferroresonancealarm.

 

Features

  • Interposing Relays:
    The interposing relays are intended for the remote control operation of switchgear over pilot wires with a maximum resistance of 200 ohms. The relays are designed so that they are not susceptible to certain a.c. voltage levels which may be induced onto the pilot wires.
  • Supply Supervision Relays:
    The supervision relays are designed to monitor DC Voltages. They have a low operating current, specific settings, time delayed drop-off, a mechanical flag indicator which shows on de-energisation and contacts for the ability to initiate remote alarms.
  • Trip Circuit Supervision Relays:
    These relays are for the monitoring of the circuit breakers trip circuit to ensure integrity at all times. There are differing preferences for monitoring a trip circuit and our range is designed to meet these requirements.

 

Functions

·        Type XR151 relays are designed to allow thesupervision of a trip relay operating coil, supply and associated wiring.

·        Types XR152 and XR153 relays are designed to complywith CEGB and other specification for protection supervision requirements andthe monitoring of d.c. voltage supplies. These applications require relays withlow operating current, visual indication and the ability to initiate a remotealarm.

·        XR250 and XR251 circuit breaker closedsupervision will initiate an alarm and provide indication with the circuitclosed for: Failure of the trip supply, open circuit trip coil, an open circuitin the trip circuit wiring and if the trip coil should fail to respond to atrip command.

·        XR350 and XR351 provide continuous supervisionwith the circuit breaker in the open and closed positions and in compliancewith the scheme requirements of BEBS S15 scheme H7. XR350 and XR351 relays alsohave a contact for pre-closing supervision, where a circuit breaker isprevented from being closed if trip relays have not been reset. BEBS S15 schemeH7 is applicable to trip circuit voltages of DC 125 V and DC 240 V.


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Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Mr Piyush Lalchand Rathi (Partner)
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Mr. Dnyanesh Gawande (Partner)
Mobile :+919833686249