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The SMRC recloser, used with SPG-SS sectionalisers, assures fast, automatic, reliable feeder protection and service restoration.

The SMRC recloser is a 3 phase auto circuit recloser designed for pole mount or zone substation applications up to 27kV.

This is possible without central decision and control. The VIT product family coordinates autonomously to minimise distribution system SAIDI. Ring, radial or mixed network configurations are supported, without distance or switch number limits. True open conductor detection plus SEF and HIF protection combined with autonomous source and load isolation minimises bushfire and public shock hazards. The VIT family is Smart Grid ready with fast precision measurement of all variables and standard SCADA communication protocols.

 Safety

• Directional Phase, earth fault SEF and HIF protection
•  Will not close into fault - Source fault lockout feature in ring Normally Open Mode
• Source and Load lockout in ring Normally Closed mode
• Open conductor detection

Performance

• Smart Grid Ready: Built in SCADA interface with standard protocols.
• Fast and Accurate: 3 Integrated Current Transformers and 6 Resistive Voltage Sensors inside the tank. World First Resistive Voltage Sensors with an accuracy of ¡­ 0.5% ensure superior accuracy (traditional capacitive sensors have only ¡­ 3% accuracy)
• Sympathetic Trip Restraint
• Automatic Group Setting and ring NO-NC Changes
• Ring NO, Ring NC, Radial and mixed network configurations
• No distance or switch node limitations
• Conventional recloser function is configurable
• Solenoid and Dual Latch Mechanism: Opens in less than 25ms; clears in less than 2.7 cycles; mechanical trip free; anti-pumping characteristics.
• Micro-processor Control and RTU:  fully configurable multiple recloser modes, fault recording, contact wear monitoring, electrical quantity metering, event reporting. No extra cost

Reliability

• Field Proven Vacuum Interrupters ensure long and safe operating life
• Powder coated Stainless Steel Tank: TIG welded and EPDM double sealed to ensure the recloser is maintenance free and SF6 Gas tight for life
• Horizontal Bushings: Superior insulation capability and better short circuit characteristics than vertical bushings. It is easier to pole mount the recloser as line post insulators are not necessary
• Electrical Emergency Close/Open Device allows control system override by field personnel
• Dead Line Operation Module (option) Battery powered system with low voltage closing coil solenoid to operate recloser during line outages

Electrical Characteristics

The SMRC recloser series has been fully certified in accordance with ANSI C37.60 (1981)

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