Overview

The high-voltage ZRTSC type SVC dynamic reactive power compensation device adopts a fully digital intelligent control system, which uses high-power thyristors in series to form a high-voltage AC contactless switch, which can achieve fast zero crossing and switching of multi-stage capacitor banks. The response time of the high-voltage ZRTSC dynamic reactive power compensation device is less than 20ms, and it can monitor and dynamically compensate for impulse loads and time-varying loads in real time, achieving the goal of compensating the power factor to 0.95 or above; At the same time, this product absorbs advanced foreign technology and overcomes the shortcomings of existing compensation methods such as complex voltage regulation, easy impact of control switches, and short service life. It has dual functions of dynamic compensation for reactive power and stable system voltage, and its technical level is leading in China. This product has significant features such as reducing network losses, saving electricity, and improving power supply quality, which can bring huge economic and social benefits to users.General mining cabinet

Working principle

The high-voltage ZRTSC dynamic reactive power compensation device is composed of fiber optic trigger control system, valve control system, reactor, capacitor, protection element and other units. The control system is monitored in real-time by a microcomputer and intelligently adjusted. The capacitor bank is switched by thyristors. When the controller detects reactive current exceeding the set value, it automatically determines the number of stages to be switched. The controller outputs a trigger signal to the specified thyristors to conduct and put the capacitor bank into operation. When the reactive current value of the load is lower than the set value, the controller provides a control signal, and the trigger stops sending the trigger signal, causing the capacitor bank to exit operation. The above working conditions are fully automatic, ensuring that there is no impact, surge current, or transition process when switching capacitors.

Technical features

1. Real time tracking of load changes, dynamic compensation of reactive power, and improvement of system power factor;

2. Using fiber optic triggering technology to achieve isolation between primary and secondary systems, solve interference problems, and ensure trigger pulse synchronization and accuracy

3. Using imported thyristors to control the switching of capacitor banks, achieving zero crossing switching and improving the service life of the equipment;

4. During the switching process of the capacitor bank, there is no surge current, no operating overvoltage, and no arc reignition phenomenon;

5. Dynamic suppression of system harmonics. Improve voltage distortion rate, fully consider the amplification of harmonic current by capacitor banks in the main circuit design, and ensure the safe operation and reliable operation of equipment;