Press Releases

NOJA Power Switchgear Pty Ltd specialises in the research and development, manufacture, marketing, sales and service of medium voltage pole mounted switchgear products. We also design and assemble low voltage switchboards and motor control centres.

May 2002

PRESS RELEASE

Outdoor MV pole mount switchgear

Qld, Australia, 16 May 2002
NOJA POWER Switchgear is seeking to appoint global distributors for its range of outdoor pole mount auto reclosing circuit breakers.

The OSM automatic circuit recloser is available in voltages up to 27kV and is based on the technology and processes used in the ISM module which created the OSM module.

The product has been fully tested to comply with the requirements of ANSI C37.60 and utilises vacuum interrupters encased in a polycarbonate housing inside a powder coated aluminium tank to provide a fully insulated and solid di-electric system.

This unique and patented fully insulated system allows Noja Power to produce the smallest and lightest auto recloser available in the market today.

The device measures current on all three (3) phases as well as residual current by utilising Rogowski sensors as well as voltage on all six (6) bushings using a capacitively coupled voltage measurement technique from conductive rubber screens.

Because the device has the ability to measure voltage and current, the protection and data logging functionality that is available in the RC control is extensive.

The RC control and communications cubicle is a microprocessor-based control that incorporates the protection data logging and communications function in a single micro processor.

Functionality includes:

· Directional overcurrent protection.

· Directional earth fault protection.

· Directional sensitive earth fault protection.

· Undervoltage protection.

· Under frequency protection.

· Cold load pick up.

· Inrush restraint.

· Voltage reclosing control which allows the customer to program loop automation functionality.

· Separate event logs for close open operations and fault protection operations.

· Load profile data.

· Integral RTU providing DNP3 and Modbus protocols as standard combined with the ability to provide and engineer other protocols on request.

· Full file management and upload and download using the TELUS PC software.

Noja Power managing director Neil O’Sullivan says he is confident the OSM product will fast develop as the industry standard in auto reclosers.

Noja Poweris responsible for the final manufacture and global marketing, sales and service of this product for the group.

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