Ampcontrol

Ampcontrol delivers integrated electrical, electronic and control solutions to improve safety and efficiency in mining, renewables, infrastructure and industrial applications. In these industries where safety is paramount, Ampcontrol has a proven track record of delivering electrical protection relays that suit their unique system challenges and regulatory requirements.

The comprehensive range of Ampcontrol electrical protection relays ensures safe and stable electrical systems and delivers:

  • Increased personnel protection and safety
  • Continuous monitoring of electrical system integrity allowing early removal of hazardous situations
  • Increased plant protection and improved economic efficiency
  • Reduced downtime and fault damage
  • Accurate measurements negating nuisance tripping
  • Event logging assisting integration of past faults
  • Detection of potential fire hazards caused by high currents
  • AS/NZS2081 and AS/NZS4871 compliance.

Ampcontrol’s range of relays includes electrical protection solutions for a range of applications through integrated and individual relay protection for earth leakage, earth continuity, earth fault lockout and frozen contactor.

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Earth Continuity Relay

The Ampcontrol earth continuity relay ensures safety and AS/NZS2081 compliance through a new method of earth continuity protection that uses a ‘trip curve’ to discriminate between earth disconnection faults and incremental increases in the earth return impedance that occurs due to equipment degradation.

This method provides an instantaneous trip for energised uncoupling of cables and a time delay for gradual increases in the impedance of the earth return path to allow discrimination between noise induced onto the cables pilot earth loop and an actual increase in loop impedance. Embodied in Ampcontrol’s ECM3, this innovation is game changing.

Earth Leakage Relays

Ampcontrol is a leading supplier of earth leakage relays for a range of mining, industrial and infrastructure applications. Ampcontrol is also an expert in managing VSD-generated earth leakage current in fault limited systems and has developed a range of wide bandwidth earth leakage relays for this application.

Earth Fault Lockout Relays

Ampcontrol has developed earth fault lockout relays for underground coal mining and hard rock mining applications. The earth fault lockout (EFL) relay provides two electrical protection functions and is compliant with AS/NZS2081:2011. The earth fault lockout relay will monitor the state of the outlet’s main contactor and compare it to the auxiliary.

Multi-function and Integrated Protection Relays

Ampcontrol’s multi-function relays provide multiple protection functions in a single unit. Ampcontrol introduced the first integrated protection relay into the underground mining market in the 1990s and has continued to innovate and introduce new technology to this sector.

Conveyor Monitoring & Control

Ampcontrol has a solid history of supplying conveyor monitoring and control systems to some of the longest conveyors in Australia. The iMAC monitoring and control system has been installed on conveyor belts measuring more than 50 kilometres. iMAC systems help meet the challenges of maintaining safety while maximising productivity on underground and overland conveyors. Each iMAC conveyor installation is customised to the requirements of a site and includes features such as emergency stop (E-stop), remote isolation, prestart warning, intercom and broadcast messaging functionality.

Complex conveyor systems are easily controlled using the iMAC remote I/O modules, so high-integrity E-stop and remote isolation can be undertaken, even with multiple drive locations. The system is designed to minimise conveyor downtime and streamline work processes, even when the interlocking is complicated. Advanced self-diagnostics help maximise conveyor equipment availability.