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About usKonstanz Electric Group Co., Ltd. is an industry leading enterprise integrating intelligent manufacturing and technology research and development of high and low voltage transmission and distribution equipment, power quality,
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ProductsRelying on imported technologies and raw materials, the company, under the brand of "KONSTANZ", wholeheartedly serves the national grid, metallurgical manufacturing, petrochemical industry, rail transit, ports, airports, new
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ServiceConstants Electric always adheres to the service concept of integrity and professionalism, and wholeheartedly provides users with high-quality lifelong service.
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NewsTo provide safe and reliable power distribution solutions for smart cities and smart factories, we are always committed to becoming "trusted electrical experts" around you.
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Contact usConstants Electric always adheres to the service concept of integrity and professionalism, and strives to provide high-quality lifelong service for users, and provide safe and reliable power distribution solutions for smart c
PRODUCT CENTER
An enterprise integrating intelligent manufacturing and technology research and development of high and low voltage transmission and distribution equipment, power quality, electrical automation, technical consulting, scientific research, production, sales and operation management
Low Voltage Capacitor Switching Switch
The KS/FK capacitor switching switch employs a parallel configuration of thyristor switches and magnetic‑hold switches, combining the zero‑crossing switching advantages of thyristors during turn‑on and turn‑off with the zero‑power‑consumption benefits of magnetic‑hold switches during normal operation.
Low-voltage Svg StaticVar Generator Module
The KS‑SVG low-voltage static var generator is a three-phase full-bridge voltage-source converter composed of fully controlled power electronic devices—IGBTs. By adjusting the phase and magnitude of the AC-side output voltage of the bridge circuit, it can either absorb or inject reactive power to meet specified requirements, thereby achieving dynamic reactive power compensation. This low-voltage static var generator is primarily used in low-voltage systems to improve the power factor while simultaneously compensating for harmonic currents and unbalanced currents. It features fast response, high compensation accuracy, and flexible compensation modes, capable of compensating both capacitive and inductive reactive power.
Low Voltage APFActive Filter Module
The KS-APF active filter module is an electrical device based on power electronics that can operate in parallel with harmonic‑generating equipment connected to the grid. It monitors the harmonic current conditions in the grid and performs filtering according to user‑defined target parameters. By injecting into the grid a current that is equal in magnitude but opposite in phase to the harmonic currents at each frequency, it effectively eliminates harmonic distortion.
High Voltage Reactive Power Compensation Controller
The KGK-type high-voltage reactive power compensation controller is a new-generation device that integrates data acquisition, reactive power compensation, and grid parameter analysis. It is suitable for monitoring and reactive power compensation control in AC distribution systems operating at 3 kV to 35 kV and 50 Hz.
Centered around a high-performance industrial MCU, the KGK-type high-voltage reactive power compensation controller is designed in compliance with the domestic JB/T 9663-2013 standard. It features a 128×64 dot-matrix LCD display supporting both Chinese and English, and employs high-speed AD conversion technology, enabling it to acquire all grid parameters within a single cycle. The controller provides real-time display of voltage, current, active power, reactive power, power factor, voltage harmonics, current harmonics, and other grid-related data. Equipped with a built-in Fourier transform algorithm, it can accurately calculate grid parameters even in the presence of harmonic distortion. Furthermore, the controller utilizes our company’s proprietary second-generation switching algorithm, offering rational control logic and precise compensation performance.
Low Voltage Reactive Power Compensation Controller
The KZD-111 intelligent reactive power compensation controller is a new-generation device that integrates data acquisition, reactive power compensation, and grid parameter analysis. It is suitable for monitoring and reactive power compensation control in AC low-voltage distribution systems ranging from 0.4 kV to 1.0 kV at 50 Hz.
At its core, the KZD-111 intelligent reactive power compensation controller employs a high-speed digital signal processor and utilizes AC sampling. Its human–machine interface features a large 128×64 dot-matrix LCD display. The controller offers functions such as power distribution monitoring, reactive power compensation, harmonic analysis, and an adaptive frequency algorithm, with input signals adjustable within the range of 45 Hz to 55 Hz.
KBAM explosion-proof high-voltage shunt capacitors are primarily used in 50 Hz or 60 Hz AC power systems to improve the power factor of the grid. Their performance complies with the Chinese national standard GB 3983.2 “High-Voltage Shunt Capacitors” and the international standard IEC 60671‑1. The maximum capacitance of an AC capacitor unit can reach 700 kvar (at 50 Hz), and it is characterized by extremely low losses and high reliability. Each capacitor unit is constructed by winding a dielectric layer of polypropylene film together with aluminum foil electrodes, and it can be equipped with various fuse‑protection schemes, including internal‑fuse (CHDB) configuration, external‑fuse (CHDE) configuration, or fuse‑less (CHDF) configuration.