Supply of DETSC high voltage dynamic reactive power compensation device

Product Overviewrr The high-voltage dynamic reactive power compensation device is a new dynamic capacitance compensation device. The product adopts a fully digital intelligent control system. High-voltage and high-power thyristors imported from abroad are connected in series to form a high-voltage AC non-contact switch to realize the capacitor bank. Fast switching, response time is less than. The product draws on foreign advanced technology and solves the shortcomings of traditional compensation device control switches such as vulnerability to impact, short service life, and slow response speed. The equipment operates safely, reliably, and has good effects, and all performance indicators have reached the domestic advanced level. It has significant features such as stabilizing system voltage, reducing network losses in the power supply system, and improving power quality, and can bring huge economic and social benefits to users.
Technical featuresrr
High reliability and safety
Using an optical fiber triggering system to achieve electrical isolation between the control system and the main circuit, it has strong anti-interference ability and is equipped with a comprehensive protection system.
Zero-crossing switching realizes no impact surge during the switching process, extending the service life of the equipment, reducing the failure rate and improving the safety of equipment use.
Real-time detection, fast compensation, high compensation efficiency
The capacitor switching time is within the limit, fully adapting to the situation where the system has frequent reactive load impacts, the compensation effect is excellent, and the occurrence of under-compensation is effectively controlled.
Reasonable assembly structure
The thyristor valve group structure adopts an integrated design, with excellent heat dissipation and safety performance. Each phase device is placed separately in the cabinet, making operation safe and easy to maintain.
Working principlerr
The high-voltage dynamic reactive power compensation device is composed of the main control system optical fiber trigger circuit, high-voltage thyristor valve group, pulse transformer capacitor reactor protection unit, etc. The core principle is to control the system operating parameters through the main control system. The detection, analysis and judgment output control instructions activate the optical fiber trigger circuit, and then the trigger system controls the rapid conduction and disconnection of the thyristor valve group, thereby realizing the input and removal of the capacitor group, so that the system power factor is stabilized within the set value range. The valve group switching adopts the zero-crossing switching method, the response time is within the range, there is no inrush current impact during the switching process, and the reactive current required by the compensation system can be quickly tracked.
Scope of application
Chemical industry
It can effectively solve the problems of system operation harmonic interference and load operation large-scale and frequent fluctuations in large-scale chemical industry power systems, resulting in the inability of ordinary compensation devices to
track and put into operation. Optimize power quality and improve power factor.
Metallurgical Industry
It can effectively solve the problem of large voltage fluctuations and voltage drops caused by large-scale and frequent fluctuations in power system load operation in metallurgical industries such as submerged arc furnaces, electric arc furnaces, calcium carbide furnaces, medium frequency furnaces, and ironmaking. Power quality issues.
Machinery Manufacturing Industry
It can effectively solve power quality problems such as frequent fluctuations in system operation, reactive power impact, high power factor and low power factor in machinery manufacturing industries such as automobile manufacturing, steel rolling, heavy machinery, etc.
Coal and port industry
It can effectively solve the problems of reactive power impact, large fluctuations and frequent system voltage instability caused by the operation of large electric drive hoists and other loads in this industry, and the inability to track and compensate for reactive power.
~   Low noise: Using aerospace heat pipe cooling technology, the noise is less than B.

Complete protection: Complete self-protection system design, monitors the working status of each component, and has bypass protection function.
Easy to maintain: the units are interchangeable, and the modular ones can be inspected individually without affecting each other.
High power density: the impedance and volume of the connected reactor are smaller, and the valve group is small in size.
Wide operating range: The reactive current provided by the device has nothing to do with the bus voltage. When the bus voltage decreases, it operates in a constant current source state and has strong reactive power compensation capabilities. The reactive power compensation capability of a device with the same capacity is equivalent to ~ times that of a device with the same capacity.
Flexible control method: various control strategies such as constant reactive power or constant voltage control, three-phase balance control or split-phase control can be used.