Business Products
Products Grid Control

ZG-dSVG HV Dynamic Static VarCompensator (SVG)

  • Summary
  • case
  • download

Product Description:
As our latest SVG product for distribution networks, ZG-dSVG has an H-bridge cascaded topological structure as its main topology control unit. It provides reactive power for grids by controlling the ON/OFF state of electric and electronic devices. Compared with conventional SVG products depending on reactors and capacitors, ZG-dSVG features less loss, faster response and better compensation effect, and significantly improves the reactive power compensation technology for distribution networks.
Such product has a wide range of applications in new energy power generation, coal mining, petrochemical engineering, rail transit projects and grid substations. Currently, it is a preferred technical solution to problems related to the power quality, such as power factor and voltage fluctuation. It has been widely applied in the top five electric power corporations, other large factories, mines, grids and metro projects. It has also been used in the wind farm project with the domestic highest altitude. This series has many specifications, such as direct-linked and boost types.
•Voltage grade: 3.3 kV - 35 kV
•Unit capacity: 250 kVar - 50 MVar, multi-unit parallel operation possible for larger capacity
•Efficiency: for the body, no less than 99%
•Response time: ≤ 4ms
Cooling type: forced air cooling or water cooling

Related recommendations More
1999 - 05 - 09
Product Description: Type KD-XH quick arc suppression system for distribution networks consists of a grounding transformer, arc suppression coils, a control cabinet and a central data display. The arc suppression coils are complete with primary and secondary windings, with 100% short-circuit impedance. The primary winding is connected to the neutral point of the distribution network as operating winding, while the secondary winding is connected backwards to two silicon controlled rectifiers (SCR) in parallel as control winding. The conduction angle of such SCR controller ranges between 0 and 1...
2001 - 05 - 10
With neutral grounding via an arc suppression coil, the transient single-phase earth faults can be accurately identified to quickly enter and exit the offset mode. For non-instantaneous single-phase earth faults, the grounded lines can be accurately determined according to the set time to eliminate failed lines and improve the power supply reliability of the grid.   Technology Overview: Our KD-XHTZ multi-tap arc suppression coil apparatus with automatic follow compensation contains the secondary paralleled damping resistor and perfect secondary protection technologies and is equ...
2003 - 05 - 10
With the recent development of distribution systems and further renovation of urban and rural distribution networks, numerous cables have replaced previous overhead transmission lines. To a certain extent, the decrease in the probability of single-phase earth faults reduces the high trip-out rate arising from low-resistance grounding systems. However, the high line selection accuracy of such low-resistance grounding systems are accepted by the majority of users. Consequently, they still have a wide range of applications in some urban distribution networks. Product Description: Such neutra...
Copyright ©2005 - 2017 Guangzhou Zhiguang Electric Ltd.