I. HN-MSC (Mechanical Switch Capacitor) Contactor Throwing Capacitor Series
Designed according to the nature of the load, it is suitable for load stabilization and infrequent throwing occasions.
HN-MSC series of low-voltage intelligent reactive power compensation devices are HN-MSC/A series and HN-MSC/B series, the former is used for three-phase balanced compensation, the latter is for three-phase unbalanced compensation. HN-MSC series of low-voltage intelligent reactive power compensation devices are HN-MSC/A series and HN-MSC/B series, the former is used for three-phase balanced compensation and the latter is for three-phase unbalanced compensation. The device adopts HN-Ⅰlow-voltage intelligent reactive power compensation controller and special contactor with current-limiting resistor to automatically cut the power capacitor bank.HN-MSC series device can improve the power factor of power line from about 0.65 to more than 0.95, increase the transmission capacity of transformer and line by more than 15-30%, and reduce the loss of line by 25-50%. The device is economical and practical, cost-effective. To achieve stabilization of voltage, improve power quality, saving electricity expenditure of good results.
Two, HN-MTC (mechanical Thyristor Capacitor) intelligent composite switch casting series
Over-zero casting, real-time dynamic compensation for the vast majority of industrial occasions. The product consists of intelligent composite switch, HN-Ⅱ distribution monitor and other important parts. Intelligent composite switch is the best choice switch for new generation of power capacitor casting and cutting, realizing the function of over-zero casting and relay no power consumption operation through the parallel operation of thyristor switch and magnetically maintained relay switch. That is to say, the thyristor operates during casting and cutting, and the magnetic retention relay operates during operation. Through the thyristor over-zero casting and cutting, not only eliminates the traditional device into the process of inrush current and over-voltage generated in the process of removal of the impact of power capacitors and power equipment, but also has the magnetic retention relay operation without power consumption, the advantages of non-temperature rise. Compared with similar products, it is technically very advanced. High efficiency and low consumption, environmental protection and energy saving, greatly extending the service life of power capacitors and power equipment. This product has passed the inspection of the Quality Inspection and Testing Center for Reactive Power Compensation Sets of Devices of the Ministry of Electric Power Industry in June 2002.
Three, HN-TSC (Thyristor Switch Capacitor ) thyristor switching capacitor series
Harmonic management and reactive power compensation in one, suitable for rapid changes in the load occasions. HN-TSC series adopts the Israel elspec technology, is the only one to achieve the real 5-20ms switching all capacitor bank contactless dynamic reactive power. HN-TSC series adopts Israel elspec technology, which is the only contactless dynamic reactive power compensation device in China that can really switch all capacitors in 5-20ms, and has the excellent quality of Real time and Transient-free, with remarkable energy-saving effect; the specific inductor in the system prevents the amplification of harmonics and absorbs most of the harmonic currents effectively, so as to achieve the purpose of harmonic management; the accurate over-zero switching eliminates the inrush currents fundamentally, and the device service life is greatly improved, with an average service life of up to 10 years for capacitors. The average lifespan of the capacitor is up to 10 years. The technology and performance are ahead of many "quasi real-time dynamic compensation devices", and the products are favored by users who have rapid load changes.
The products are classified according to the response speed: EQ type (5-20mS), i.e. in 5-20mS to complete the process of input and removal of all capacitor segments; AR type (1-3S), i.e. in 1S (typical use) to complete the process of input and removal of all capacitor segments, AR type series 7% reactance of the standard products, with its excellent cost-effective for the vast majority of industrial occasions.
Four, HN-GY1 contactor control type
HN-GY1 series of high-voltage automatic reactive power compensation device, suitable for 6-35KV line and substation centralized or decentralized compensation. Utilizing the integrated index of grid reactive power and voltage, the capacitor bank is automatically switched on and off by the vacuum contactor with independent intellectual property rights for capacitors. It effectively improves the overall power factor of the grid, reduces line losses, achieves energy saving and consumption reduction, and stabilizes the voltage of the grid.
Fifth, HN-GY2 silicon controlled reactor + fixed capacitor type (TCR + FC)
In recent years, large-scale power electronic equipment in the power system has been widely used in electronic equipment in the nonlinear components will cause the system voltage waveform distortion, resulting in the formation of high harmonics. High harmonics, on the one hand, increase the energy consumption of the power system and all kinds of loads, and, at the same time, reduce the natural power factor of the system, and even cause damage to all kinds of electronic devices, including reactive power compensation devices, and capacitor explosion, and so on.
In addition, large shock loads (such as rolling mills, electric arc furnaces, etc.) work to cause voltage fluctuations in the power supply system, the formation of flicker, so that the power quality of the system to further deteriorate, resulting in the flicker of the lighting equipment, connected to the system of other precision equipment can not work properly.
With the increasing maturity of high-voltage thyristor technology and the continuous decline in manufacturing costs, the thyristor-controlled reactor plus fixed capacitors, that is, TCR + FC-type dynamic reactive power compensation device to improve power quality of the user continues to increase. It has four main functions: suppressing voltage fluctuation, improving power factor, absorbing grid harmonics and reducing power loss.
Six, HN-GY3 power system filter
With the high-power power electronic rectifier, non-linear power loads (such as electric arc furnace) and a large number of household appliances are widely used, the power supply system in the high harmonic is becoming more and more serious, on the power supply system and a large number of electrical equipment constitutes a "power pollution". It makes the power system control and protection equipment error action, and even produce parallel resonance overvoltage, threatening the safe operation of the power system. It causes such as high voltage cable heat increase, loss increase; power capacitor due to overvoltage explosion, drum belly; communication due to high harmonic interference and quality degradation; computers and other electronic equipment can not work properly or even damage and other phenomena occur.
The main function of the filter is to compensate the reactive power of the power supply system on the one hand, and to manage the grid harmonics on the other. Our company and the University of Science and Technology of China jointly developed, developed high and low voltage harmonic management device, with the power supply system harmonic on-line testing, theoretical analysis, the use of computer software to automatically design the filter parameters, such as leading technology, excellent performance characteristics. It can purify power supply, reduce power loss and improve power quality. Widely used in metallurgy, chemical industry and electrified railroad and other industries.
VII, HN-2000 electrical automation monitoring system
HN-2000 electrical automation monitoring system is based on many years of experience in the operation of the electrical automation system, and constantly combined with the development of new technologies, new statutes and become, by the interval layer of protection, measurement and control equipment, the intermediate communication layer, the back-end monitoring system is composed of three levels, measurement, protection, communication, control in one, perfect function, reliable operation, configuration and control of the system. It is an automation monitoring network system integrating hardware and software with perfect function, reliable operation, flexible configuration and friendly interface, which is at the leading technical level in China. And won the second prize of 2005 Anhui Provincial Science and Technology Progress Award.
HN-2000 series of microcomputer protection, measurement and control devices
HN-2000 series of microcomputer protection, measurement and control devices are mainly used in plant and station systems of 35KV and the following voltage levels to realize the functions of protection, measurement, control, communication and monitoring.
Nine, Hw series of microcomputer integrated protection device
Hw series of microcomputer integrated protection device is the integration of microcontroller technology, analog electronic technology and relay protection technology relay protection products. The company has nearly ten years of production, operation experience of this series of products, and has its own anti-interference patented technology, this series of products can be separately on the motor, transformer, capacitor, feeder line and bus PT, etc. to provide a complete set of integrated protection, has been widely used in electric power, metallurgy, energy, chemical industry, light industry, municipal and other key national projects. It has been widely used in power, metallurgy, energy, chemical, light industry, municipal and other national key projects.
Ten, HN-2400 series of low-voltage protection, measurement and control devices
HN-2400 series of devices are mainly used in the following 400V distribution system, with protection, measurement, control functions, support for the field bus, can be grouped into an automation system.