AC asynchronous motors are widely used in various fields. However, direct starting of asynchronous motors presents several issues, such as low starting torque, high starting current, significant impact on the power grid, difficulty in starting, mechanical stress on equipment, shortened motor service life, heavy maintenance workload, and high maintenance costs.

HVS series High Voltage Soft Starter is a new type of soft starting device developed by Sikes Electric. This device is a high-performance, multifunctional, and highly safe intelligent equipment designed and developed using advanced control theories. It is mainly used for the control and protection of high voltage motors during starting, operation, and stopping. HVS series High voltage soft starter is built around a high-speed digital signal processor, incorporating modern advanced control methods and various dynamic and static protection measures to achieve high performance. The device can dynamically, in real time, and effectively limit the motor’s starting current within a preset value, preventing voltage dips in the power grid caused by excessive starting current. It ensures smooth starting, reduces the required capacity of power transformation and distribution equipment, and saves project investment costs. The device provides comprehensive, reliable, and accurate motor protection functions, including over current, overload, current imbalance, phase loss, and thyristor faults.

HVS series High voltage soft starting reduces the voltage drop in the power grid caused by direct starting of motors. The use of this product does not affect the normal operation of other equipment connected to the same grid. It reduces the inrush current of the motor, which otherwise would cause excessive localized temperature rise and shorten the motor’s service life. The inrush current can also generate electromagnetic interference, disrupting the normal operation of electrical instruments. Additionally, HVS series High voltage soft starting minimizes the mechanical shock associated with direct starting-shock that accelerates the wear and tear of driven machinery. It also reduces electromagnetic interference, thereby improving overall operational efficiency.

1. Modular structure with component-based design for easy maintenance.
2. Utilizes a 32-bit digital signal processor (DSP) and a high-performance Programmable Logic Controller (PLC) for real-time, highly efficient, reliable, and stable control of the device.
3. Offers multiple starting modes, including voltage ramp, kick-start + voltage ramp, current limiting, voltage ramp + current limiting, and inching, with configurable start time intervals.
4. Free stop and soft stop options: Soft stop is suitable for special applications such as eliminating water hammer effects.
5. Anti-interference capability: Complete electrical isolation between high voltage and control sections ensures safe, reliable operation and strong noise immunity.
6. Measurement functions: Individual measurement of three-phase currents, voltage measurement, and zero-sequence current.
7. Voltage protection: Includes lightning over voltage protection, switching over voltage protection, various static and dynamic voltage sharing methods, and multiple over voltage absorption protection technologies.
8. Protection functions: Comprehensive protection including phase loss, over current, over voltage, under voltage, overload, under load, over temperature, current imbalance, thyristor fault detection, and zero-sequence protection.
9. Display features: Large-screen touchscreen HMI (Human-Machine Interface) for user-friendly and intuitive operation.
10. Communication functions: RS485 communication with MODBUS RTU protocol. Supports centralized control via a host computer.
11. All control operations are performed with the cabinet door closed. High and low voltage sections are separated, with the cabinet consisting of three compartments: low voltage compartment, high voltage compartment, and valve unit compartment. It features a five-prevention interlocking system.

1. Cement Manufacturing: Kiln induced draft fans, pressure blowers, cooler dust collectors, raw material mills, kiln supply fans, cooler exhaust fans, separator fans, main dust collectors, etc.
2. Oil & Gas: Circulating water pumps, main pipeline pumps, electric submersible pumps, water injection pumps, boiler feed pumps, brine pumps, induced draft fans, descaling pumps, compressors, etc.
3. Metallurgy: Ventilation fans, slurry pumps, dust exhaust fans, induced draft fans, descaling pumps, etc.
4. Electric Power: Condensate pumps, dust collectors, forced draft fans, induced draft fans, sewage pumps, boiler feed pumps, etc.
5. Municipal Water Supply: Water pumps; Wastewater Treatment: Sewage pumps, purification pumps, clean water pumps, etc.
6. Mining: Mine drainage pumps, medium pumps, exhaust fans, ball mills, crushers, conveyors, etc.
7. Pharmaceuticals: Cleaning pumps, refrigeration compressors, etc.
8. Paper-making: Beaters, etc.