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XiCHi CMV solid soft starter applied to mine water pump

Author: Site Editor     Publish Time: 2022-06-07      Origin: Site


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Mine water pump is one of the indispensable and important equipment in mine production, and the motor is the power source of water pump operation, its starting method directly affects the service life of the water pump, and also affects the reliability of power supply.

Problems when the pump motor starts:

1. Electrically, the motor current is 5-7 times of the rated current when starting. The large current will cause the motor winding temperature to rise too high, accelerate the insulation aging, reduce its service life, and affect the reliability of the power supply, resulting in voltage fluctuations.

2. Mechanically, the excessive starting torque will have a large mechanical impact on the pump, and the equipment maintenance will increase.

The working principle of CMV series high voltage soft starter:

The control core of the CMV series is the microprocessor CPU. The microprocessor performs phase angle trigger control on the SCR to reduce the voltage applied to the motor, and then smoothly increases the motor torque by slowly controlling the voltage and current applied to the motor until the motor accelerates to full speed. This starting method can reduce the starting impulse current of the motor and reduce the impact on the power grid and the motor itself. At the same time, it also reduces the mechanical impact on the mechanical load device connected to the motor, so as to prolong the service life of the equipment and reduce the fault and downtime detection time.

When the motor runs at full speed, the motor current drops to the current value of normal full speed operation. The CMV series soft starter has a bypass output relay, so that the bypass high-voltage vacuum contactor is closed, so that the motor current passes through the bypass contactor to prevent The heat loss caused by the voltage drop generated by the SCR conduction improves the work efficiency and reliability.

This series of products (CMV-G, CMV-S, CMV-E) are widely used in electric power, building materials, chemical industry, metallurgy steel, paper making and other industries with rated voltage of 3000-10000V. It can be used well with various electromechanical equipment such as water pump, fan, compressor, pulverizer, mixer, belt conveyor, etc. It is an ideal high-voltage motor starting and protection equipment.

Equipment Installation and Commissioning
Softstarter Installation_XiCHi CMV-G_XiChi

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