3.3kV Longwall DCB

3.3kV Longwall DCB

3.3kV Longwall DCB

Building experience in 3.3kV Longwall Gate End Box's since 1996 

NEPEAN's 3.3kV Longwall DCB product range includes up to 12 Outlets and is offered in a Flameproof enclosure and built to customer specifications. The DCB is an integral component of a complete Longwall Electrical System, providing distribution and protection of all 3.3kV circuits on the longwall.

The current range includes a standard skid /BSL mounting arrangement, Low profile configurations for mounting on top of the BSL and monorail mounting options.

Available in single, dual and triple incoming supplies to meet the large power demand of the modern longwall.

Each Longwall DCB is customised to meet specific mine site communication requirements and can include PLC based control systems, HMI interface capabilities and SCADA packages. Customer required functionality including safety rated remote (SIL) isolation and earthing systems can be incorporated into the control and HMI systems to ensure safe and reliable operation from behind closed doors.  Sequenced start / stop of the longwall system is provided through interface with machine recognition on outlets.

The 3.3kV power distribution outlets are provided with protection by our integrated protection relays. This ensures the DCB generally meets the electrical protection requirements of AS4871.2012.

Each Longwall DCB upon completion follows through a process of Factory Acceptance Testing, Compatibility Testing (were necessary) and Commissioning to ensure operational status on delivery. Manuals including flameproof dossier and drawings are provided and options are available for ongoing support for each product including Lifecycle Management.