The Simo SGQH high-voltage solid-state soft starter cabinet in Xi'an is a new type of medium and high-voltage motor soft starter cabinet, which has been widely applied abroad. It is mainly suitable for medium and high-voltage AC squirrel-cage motors below 10kV. It adopts DSP control technology, power electronics technology, and thyristor series-parallel connection technology to comprehensively control and provide comprehensive protection for the motor. Compared with other traditional starting methods, its unique intelligent control mode allows for convenient and accurate setting of parameters such as starting torque, starting current, starting time, and stopping time. It can also be networked and controlled with microcomputers, PLCs, etc. The high-voltage solid-state soft starter cabinet also has the advantages of small size, low power consumption, high reliability, high sensitivity, contactless operation, maintenance-free, no environmental pollution, and easy installation.
The Simo SGQH high-voltage solid-state soft starter cabinet in Xi'an has now been widely used in various loads in industries such as machinery manufacturing, cement production, metallurgy, mining, oil production, chemical industry, water treatment, petrochemical industry, etc., including pumps, fans, oil pumps, air compressors, ball mills, cranes, compressors, crushers, conveyors, elevators, centrifuges, rolling mills, etc.
- It combines original imported series thyristors, professional insulating materials, and modern power electronics control technology, and is professionally designed and manufactured; it is a high-voltage solid-state soft starter device suitable for the characteristics of medium and large motors.
- High reliability: The main circuit of the device adopts a modular structure and a modular installation method; it has multiple overvoltage absorption and protection technologies; it conducts multi-layer amplitude limiting and clamping for transient dv/dt, lightning impulse voltage, switching overvoltage, and transient transition processes; it has unique measures and methods for di/dt, voltage equalization during the valve turn-on process, and voltage equalization during the valve turn-off process.
- Perfect isolation between strong and weak currents: The system uses high anti-interference digital trigger cabinets and is equipped with optical fiber isolation or CT isolation transmission technology between strong and weak currents, avoiding mutual interference between strong and weak currents, making the high-voltage performance of the device as safe and reliable as that of low-voltage devices.
- A unique fault detection, reporting, and judgment system can quickly transmit the detection results to the control circuit, give audible and visual alarms, and take corresponding measures at any time to prevent the expansion of faults.
- The high-voltage soft starter cabinet has an efficiency of > 96% (up to 97%), which is much higher than that of other soft starter cabinets.
- Multiple perfect protection functions: It can promptly alarm and handle various fault states such as short circuit, overcurrent, current limiting, overvoltage, undervoltage, overload, phase loss, three-phase current imbalance, overheating, communication failure, etc., to protect the soft starter cabinet and the motor.
- The unique heat dissipation design effectively cools the thyristor components.
- A variety of optional soft starting functions, including standard soft starting, constant current soft starting, dual-voltage ramp starting, soft starting with a pulse jump function, etc.
- It has the characteristics of small size, low power consumption, high sensitivity, contactless operation, and easy installation.
- Ambient temperature: -20℃ to +50℃.
- The relative humidity of the air does not exceed 90%.
- Altitude does not exceed 2000m (For altitudes above 2000m, special designs can be made according to specific working conditions).
- The maximum working voltage does not exceed 110% of the rated voltage.
- Power frequency: 50Hz + 2Hz.
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