Longwall Electrical Systems

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Complete longwall engineered equipment

NEPEAN Power delivers a comprehensive solution for longwall systems, offering engineer-designed equipment that covers a spectrum of essential components, from IP56/flameproof transformers and flameproof distribution control boxes to control and monitoring enclosures, all meticulously certified and compliant with relevant standards.

Flameproof Longwall Distribution Control Box

The NEPEAN Power flameproof longwall DCB is available in various combinations up to 8 outlets at 3.3kV. The equipment is designed and manufactured with an emphasis on safety, reliability and accessibility for normal maintenance. The DCB has separate enclosures for the main incomer supply, 3.3kV outlets, gas detection and PLC/control.

Isolator

The isolator serves two functions, firstly it protects against overloads or short circuits, and the second is to provide a means of isolating power from the control enclosure. The control enclosure houses contactors and protection relays for each outlet, arranged in easily maintained modular sections. It is both electrically and mechanically interlocked to the isolator compartment, to ensure that it can only be opened while the power is isolated.

Control & Monitoring Enclosures

NEPEAN Powers Longwall Control & Monitoring Enclosures are designed to complement NEPEAN Power’s longwall substation range utilising the PLC and SCADA systems to display all operating functions and fault conditions for the face supports, shearer, face drives, pumps station, substation, signalling and communication system, gas monitoring and mine included projects i.e. conveyor system.

Substations

The NEPEAN Power Longwall Substations can be manufactured in either flameproof or ingress protection versions up to 7.5MVA and typically 11KV/3.3KV.

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