Our Mission Statement
NOJA Power provide high quality, quality assured medium voltage recloser related products and services to an international market. Use the links below to explore our available products.
News 2011
2011 March NOJA Power Commissioned to Supply Switchboard For Airport Link Project
News 2010
2010 December NOJA POWER Expands its Type Testing Capabilities
2010 November NOJA POWER Environmental Management System ISO14001 Certified
2010 July NOJA Power elevated to National Master Electrician Status
2010 June NOJA Power OSM38 KEMA Type Testing Completed
2010 March NOJA Power Motor Control Centres Empowers Queensland Coal Export
2010 March NOJA Power Auto Recloser Perfect Solution for Sectionalising
2010 March NOJA Power Low Voltage Motor Control Centres, Specify for Safety, Reliability and Performance
2010 June NOJA POWER OSM38 KEMA Type Testing Completed
2010 Febuary TELUS and OSM Recloser Provide Smart Grid Solution
2010 January NOJA Power Auto Recloser Operating Smart Grids Below Freezing
News 2009
2009 October NOJA Power Winner of the 2009 Premier of Queensland's Exporter of the Year Award
2009 August Trade Queensland International Business Cadetship Successfully Completed
2009 August Kanban & Lean Manufacturing Improve Productivity
2009 August NOJA Power OSM27 Type Tested at KEMA
2009 August NOJA Power New Corporate Office and Factory
2009 Feburary NOJA Power Reclosers to Increase Distribution Network Reliability in Brazil
2009 Feburary Powerco Successfully Commissions Automatic Backfeed Restoration Scheme
2009 Feburary NOJA Power Continues to Supply MCCs for Abbot Point Coal Export Upgrade
News 2008
2008 November ENERGEX Awards NOJA Power a Recloser Supply Contract as Part of Network Upgrade Program
2008 September Factory Expansion Increases Production Capabilities
2008 August Practical Perspective on Recloser Training
2008 August NOJA Powers Brisbane Clem Jones Tunnel
2008 June NOJA Power Commended on Manufacturing Endeavours
2008 June OSM Reclosers helps Mine through Bat Season
2008 May NOJA Power exhibits OSM Recloser reliability at IEEE Conference
2008 April NOJA Power Awarded for Exporting Success
2008 April Brazilian Intern Graduates & Joins NOJA Power Distributor
2008 March NOJA Power Teams up to Supply PNG Power
2008 March Solid-Dielectric ACR Installation Improves Distribution Network Reliability
2008 Feburary NOJA Power to Exhibit at Upcoming IEEE PES Conference & Exhibition
News 2007
2007 October NOJA Power Switchgear Pty Ltd Appoints Exclusive Distributor for the Territory of New Zealand
2007 September Fiji Electricity Authority Contract Award
2007 September ENERGEX Reaps Benefits of OSM Installations
2007 August Planning for the future: Water Matters
2007 August ETSA Utilities Award 5 Year Supply Contract
2007 August NOJA Power & Comulsa exhibit at Exponor Conference, Chile
2007 January Gold Coast Airport upgrades using OSM Recloser
News 2006
2006 November NOJA Power receives AEEMA Excellence in Exporting Award 2006
2006 November Trinidad & Tobago Electricity take delivery of NOJA Power OSM Reclosers
2006 September NOJA Power welcomes new member to sales team
2006 August Fiji Electricity Authority Remote Controls NOJA Power Reclosers
2006 July New Shipment to Bangladesh
2006 June A Global Bank to Support A Global Business
2006 June Motor control centres come as standard
2006 June Standard design for motor control centres improves quality
2006 August Fiji Electricity Authority Remote Controls NOJA Power Reclosers
2006 May Think Motor Control Centres - Think NOJA Power
2006 May 132kV Substation Protection and SCADA control project
2006 May Reliable power thanks To NOJA Power reclosers
2006 May Live line work: Is your switchgear fault contained?
BIL Levels For Reclosers
The level of BIL required for medium voltage recloser applications can be difficult to determine if the wrong standards are applied.
NOJA Power type tests all its reclosers to ANSI C37.60-2003 both in-house and at independent testing facilities. This is the only standard in existence that specifically deals with testing requirements for medium voltage reclosers.
ANSI C37.60 requires BIL testing to ensure reclosers are built to a level which helps to prevent damage to equipment following lightning strikes. In particular it takes into account the unique characteristics of vacuum interrupters where impulse currents can pass through the open contacts without damage to the interrupter unit.
NOJA Power has conducted its own research into this characteristic and has concluded that these currents actually end up improving the di-electric strength of the vacuum interrupter and possibly also help to protect other equipment from lightning damage.
ANSI C37.60-2003 requires the following impulse withstand levels to be achieved:
- 15.5kV Vacuum Interrupted Recloser - 110kV
- 27kV Vacuum Interrupted Recloser - 125kV
Our 15kV and 27kV OSM reclosers meet these requirements. In addition, the 27kV model can be supplied with a 150kV BIL option by adding surge arrestors for each bushing.