An eight outlet 3.3kV Longwall Distribution Control Box (DCB), weighing more than six tonnes and associated Control And Monitoring Enclosure (CME) will be the dominant feature of the company’s stand.
These units are destined for a Queensland underground coal mine after the show, where they will be mounted adjacent to the longwall stage loader structure and supplied via an outbye 5.5MVA substation and parallel feeder monorail system.
The eight 300Amp outlets on the DCB are monitored by integrated protection relays and supply the main gate, tail gate, shearer, crusher and stage loader longwall motors. Two auxiliary outlets on the DCB supply the CME.
The onboard DCB PLC and SCADA system monitors the drive status and controls the operation of the longwall drives based on selections made at the CME.
The unique segregated design of the DCB enclosure provides individual isolation of sections, allowing access for maintenance personnel, while power is maintained to other sections.
The Control and Monitoring Enclosure (CME) houses all the displays and selectors for the longwall, roof support and main gate coupling control. The CME also accommodates third party equipment for shearer and roof support interfacing.
The DCB, CME and Substation PLC and SCADA systems are interconnected as a LAN network.
The SCADA system consists of flat screen LCD Display units and the new Ampcontrol Mica Micro Industrial Computer, specifically designed for mining applications, and which will be showcased at QME.
The LAN network controls and monitors all longwall and outbye pump activities and acts as a data interface to the surface. The local displays provide diagnostics and trouble shooting aides for the longwall operations.
