Supply of DEHVC+TSC hybrid high-voltage dynamic reactive power compensation device

The high-voltage + dynamic reactive power compensation device is a new type of capacitance compensation device with dynamic tracking. 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. Achieve fast switching of capacitor banks with response time less than. The product draws on advanced foreign technology to solve the shortcomings of the traditional compensation device control switch, which is susceptible to impact, short service life, and slow response speed. The equipment operates safely and reliably, with good results, and all performance indicators have reached the domestic advanced level. .
High-voltage + dynamic reactive power compensation device is widely used in high-voltage AC and DC power transmission and transformation systems
and industrial transportation impact loads such as metallurgy, coal, port door machines, electrification, railway heavy machinery manufacturing, etc.
Load distribution in the net. Its main function is to monitor dynamic compensation of impact loads and time-varying loads in real time
to achieve power factor compensation to above, stabilize the system voltage, reduce network losses of the power supply system, and improve power quality and other significant features. , can bring huge economic and social benefits to users.
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Large LCD screen display, recording and reading data more directly, good human-computer dialogue function.
Fault records, contactor action records.
Dimension R units can be interchanged, and the modular ones can be inspected separately 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.
Technical Featuresrr
Real-time tracking of load changes, dynamic compensation of reactive power, and improvement of system power factor.
Using optical fiber triggering technology to achieve electrical isolation between the primary system and the secondary system, solving interference problems, and having high reliability and controllability.
Imported thyristors are used to control the switching of capacitor banks, which truly realizes zero-crossing switching of capacitor banks without surge current, and improves the service life of the equipment.
During the switching process of the capacitor bank, there is no surge current, no operating overvoltage, and no arc re-ignition.
Dynamically suppress system harmonics and improve voltage distortion rate. The main circuit design fully considers the amplification of harmonic current by the capacitor bank to ensure safe and reliable operation of the equipment.
The circuit parameters of the thyristor valve body are designed accurately, the heat generation is small, the equipment is compact in structure and occupies a small area.
The information transmission between the control cabinet and the thyristor valve body is all realized by high-voltage optical fiber without any electrical connection, which completely solves the electrical insulation problem of controlling the low-voltage side and the high-voltage side.
Using a unique self-generated power supply and high-precision DC power supply to power the high-voltage control circuit of the thyristor valve body, the power output capacity is large, the reliability is high, and the power quality is stable.
The equipment itself has no harmonic current and no switching transition process.
Suitable for situations where reactive load impacts and fluctuates frequently.
Improve voltage quality and stabilize system voltage to suppress voltage flicker.
b  ~ records, contactor action records.

Dimension R units can be interchanged, and the modular ones can be inspected separately 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.
Scope of application
This product is mainly suitable for distribution systems with low power factor and frequent fluctuations in a small range in power systems. Part of the rapid switching solves the problem of average power factor caused by the inability of traditional compensation devices to track compensation in time. To solve the problem of low voltage, improve the power factor, reduce power loss and stabilize the system voltage. It is widely used in electric vehicles, metallurgical machinery, chemical industry, paper making, mines, large venues and other fields.