No power compensation and filtering device ZMCV-2000, using contactless electronic switch to replace the original mechanical switch, and use the based on DSP LSI for digital signal processing technology, combined with advanced technology and Tsinghua University School of electrical engineering and the joint development of the digital intelligent controller, to overcome the input surge current and resection of the operating voltage, the response time is less than or equal to 20ms and shows the all and distribution system of electrical parameters, to realize the remote control, display, print and other functions. The series of products have reached the leading domestic or international advanced level.
User of electric power system in some large load change frequently in the equipment, such as rolling machine, electric arc furnace, converter, intermediate frequency furnace, soft start load harmonic generation also subsequently injected into the grid, causing the distortion of the voltage and current, use electricity the deterioration of the environment, affecting the normal work of the electric equipment. In this device, the design of the resonant point offset can effectively avoid the parallel resonance of high order harmonic, filter out the harmonic, and no large current generation, to ensure the quality of the power grid configuration.
The main functions of the product: energy saving, capacity expansion, voltage regulation, filtering
Reactive power compensation and filter make the total current is reduced, the power loss is reduced, that is, energy saving.
Realize reactive power compensation in situ, increase the power supply capacity of the power supply equipment, that is, the capacity increase.
Dynamic reactive power compensation, fast response, real-time, no voltage flicker, so that the output voltage is stable, that is, the voltage regulator.
Through the series and different ratio of the reactor in order to filter harmonic elimination, eliminate harmonic interference, that is, filter.
Applicable scope and place
Widely used in the balance of power, automobile, metallurgy, machinery manufacturing, chemical industry, papermaking, textile, coal mining, shipbuilding, communication, building materials, airports, large venues, high-rise buildings and other places and unbalanced system of reactive power compensation and harmonic filter.
Real time compensation for impact loading. Such as: electric welding machine, air hammer, injection molding machine, intermediate frequency furnace and other equipment.
main features
Based on DSP LSI for digital signal processing technology, the acquisition parameters for the calculation of reactive power, output switching control signal; the response speed, strong real-time, fast tracking compensation, improve the stability of the distribution system power factor and operation. Dynamic response time is less than 20ms.
Control principle is zero current, fast switching capacitor banks, no switching surge current, no voltage flicker. Zero current resection, no operating over voltage. The transient process of the original old reactive power compensation device is overcome, which can avoid the overheating and the expansion of the capacitor, and the service life of the device can be prolonged.
Controller has large screen LCD display, sampling, calculation, display system of voltage, current, power factor, harmonic, active power, reactive power, active power, no power degree of 22 kinds of electrical parameters, electricity stored for 3 months, and with the host computer through the RS232 / RS485 communication port connection, data display, print and remote control functions.
Using contactless switch. Could realize unlimited times of switching, no wear, no noise, no arc restrike, first cast the first cut, circulating operation, to reduce the capacitor under the average current and prolong the service life of the device.
Self healing power capacitor with excellent performance, low loss, long service life, low maintenance, low operating cost, and with discharge resistance, over pressure, over current and other protective functions.
According to the user distribution system harmonic source situation, after testing, calculation, design filter capacity, filter harmonics and improve power factor.
Modular device, the line is clear, easy to maintain.
According to the load characteristics of the equipment, three phases balance compensation, three phase compensation and filtering function are provided.
technical parameter
Rated voltage
Rated frequency
Compensation capacity
response time
Target power factor
Capacitor group number
Number of steps
Protection level
According to the need of the system harmonic content 5, 7, 3, 11... High order harmonic filtering
400V/690V
50Hz
15~1440kvar
Less than 20ms
0.92~0.98
3~15 group
1~43 step
IP3X, IP4X
Using environmental conditions
1, ambient temperature: indoor type: temperature ~+50 C -20 C temperature: 0~90% (no condensation)
Outdoor type: temperature ~+55 C -50 C temperature: 0~95% (no condensation)
2, altitude: < 2500M
3, installation location: no oily dust, no corrosion, flammable, explosive gas.