GGD metal distribution box

It is suitable for three-phase AC 50Hz, rated voltage 690V and below, rated current 4000A and below, in three-phase four wire system or three-phase five wire system and other power systems, used for power conversion, distribution and control. 

Mining general low-voltage switchgear can be used as a complete set of low-voltage power distribution equipment in the 690V and 400V power supply system of substations in underground coal mines, underground yards without gas and coal dust explosion hazards, workshops with heavy dust corrosion, and wet places of metallurgy, subway and low buildings. 

This product uses computer chips, with software modulation and programming functions, adding 15 adjustable channels. Working in 144MHz ~ 166MHz frequency band, the transmitting power can be adjusted from 0.3W to 1.2W. The sensitivity of receiving is higher. It has the function of anti-interference of mute audio, which makes the communication effect clearer and the working performance more stable, safe and reliable. Handheld station is an extension of mine leakage communication system, which is used by underground mobile personnel.

Taking advantage of the low-speed and high torque of permanent magnet motor, combined with the torque amplification function of planetary reducer and the control of frequency converter, the low-speed drive all-in-one machine has the smallest volume and the best performance. It is suitable for installation space limited and movable equipment.

Taking advantage of the low-speed and high torque of permanent magnet motor, combined with the torque amplification function of planetary reducer and the control of frequency converter, the low-speed drive all-in-one machine has the smallest volume and the best performance. It is suitable for installation space limited and movable equipment.

Application:It is suitable for the dangerous environment of gas and coal dust explosion. Used for electrical control, monitoring and comprehensive protection of belt conveyor and other equipments in coal mine.

The permanent magnet synchronous motor adopts centralized winding, optimal pole slot coordination, and rotor structure integrating isolation, stress, positioning and lightweight, with small rotational inertia, small leakage flux, large main flux, higher power factor and higher efficiency. 

This soft starter is suitable for coal mines containing explosive gas (methane) and coal dust. In AC 50Hz, voltage 1140V or 660V, neutral point ungrounded power supply system, perform various forms of soft starting (such as current limit, voltage ramp and power torque ramp for three-phase squirrel cage motors with currents below 200A and 400A) ) . It also has perfect protection function and fault display function, which greatly reduces the troubleshooting time.