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BPJ series: flameproof four quadrant frequency converter for mining

BPJ series: flameproof four quadrant frequency converter for mining

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$0.00

The four quadrant frequency converter is a frequency converter with PWM control rectifier, which can meet the speed regulation requirements of various potential loads, convert the regenerative energy of the motor into electric energy and send it back to the power grid. It is suitable for synchronous or asynchronous motor variable frequency drive system to realize power balance when driving multiple machines, and can meet the speed regulation requirements of potential energy load such as coal mine conveyor belt conveyor, shuttle car system, monkey car, mine hoisting, winch system, counter support test bench, electromagnetic stirring, kowtow machine system, etc.

  • Realize the two-way flow of energy, so the power factor is very high, up to 99%;
  • Controllable rectification, with LC filter circuit, i.e. PFC inductance in the loop, the harmonic can be reduced to very low, less than 5%;
  • The bus voltage is controllable. Therefore, the grid voltage fluctuation, instantaneous voltage drop or overvoltage within a certain range will not affect the bus voltage, which improves the performance and reliability of frequency converter control;
  • Using high-speed processing DSP chip and digitally controlled energy feedback, the excess energy can be sent back to the power grid to the greatest extent, and the effect of energy saving and consumption reduction is very obvious;
  • It can realize the restart of transmission equipment when the power supply is restored after the power grid voltage disappears;
  • It can automatically detect incoming line current, power supply voltage and power supply frequency;
  • Various protections such as overheating, overcurrent, overvoltage, undervoltage and input loss are complete;
  • The starting torque of asynchronous frequency converter is large, which can reach 150% of the rated torque;
  • The starting torque of synchronous frequency converter is large, which can reach 200% of the rated torque;
  • Synchronous direct drive frequency converter is efficient and energy-saving, and the power saving effect can reach more than 20%;
  • With rich communication functions, it can support the access of various communication interfaces such as industrial Ethernet, PROFIBUS DP, CAN and Modbus RTU, realize the communication with the upper computer, realize the centralized control operation of multiple equipment, and transmit the operation data to the ground dispatching room for online monitoring;

  • The historical data storage can save the operation data of the last year, and the data can be exported to excel format file and converted to graphic mode, so as to understand the historical operation of the frequency converter.

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