Explosion proof starter
This starter is used for the large and medium-sized drive equipment
in the harsh environment of the large load such as coal mine, coal
separating plant and port where are filled with explosive gas
(methane) and coal dust, etc. In power supply system of AC 50Hz,
voltage 1140V, 660V or 380V, it can be used for soft start, current
limiting start, full-voltage start, natural stop and soft stop in
three-phase squirrel-cage asynchronous motor(0~400A). The starter
is designed with various protection functions like phase
protection, under-current and over-current protection, electronic
thermal overload protection, imbalance current protection and so
1. Uses advanced microprocessor (including inspection module,
protection module and control module) which has features of
advanced technology, complete function, stable performance, strong
anti-interference capability and reliable operation, etc.
2. Uses advanced power electronic components to achieve double
close loops control of current and speed; The system has functions
of soft start, soft-stop, sudden pulse start, start inspection,
RS232 communication and so on.
3. Voltage and current data of motor will be displayed.
4. With complete self-diagnose function and protection function,
when it starts or stops, has protection functions of temperature,
under-voltage, over-voltage, under-current, missing phase, line
fault, stall, leakage, thyristor fault etc. Above protection
functions ensure soft starter become more reliable when it meets
various interference and fault signals come from inside or outside.
5. Alarm function corresponds with fault type, which greatly
reduces the workload of maintenance and repair.
6. Simple structure, easy to install and operate. It can be
controlled locally as well as remote control by programmable logic
controller(PLC) or other equipments.
7. Communication interface of RS-485 or CAN is available.
Mining Explosion Proof & Intrinsic Safety AC Vacuum Soft Starter Images