Purposes

KBZ 400(200)/1140(660)A mine explosion proof intelligent vacuum feed switch is ideal for use in coal mines with methane compound gases and dangerous explosive gases. It is used in the power supply network of AC 50Hz, rated voltage 1140V and below. Therefore, when it is attached in KJ254 mining electric power automatic control and comprehensive monitor system to realize automatic control on power supply equipments and unattended.

Technical features

• Blue Screen backlit LCD, Chinese interface;
• Setting drop-down menu, with parameters for amending the whole function;
• There are overload, short-circuit, breaking phase, such as leakage closure instructions, as well as power failures, such as running state instructions;
• With short circuit, overload, under voltage, overvoltage, breaking phase and three-phase imbalance protection;
• Three phase symmetry leakage protection, selective leakage protection, branch switch leakage protection and the protection of the reserve atresia leakage protection;
• Gas atresia with wind power function;
• Allocation standard RS485/232 communication interface, configuration in KJ254 Mining automatic power control system, and achieving telemetry, remote-measure, telecommunication, remote-control and remote-regulation four functions, to supply equipment automation.

Technical Data