What Is DGFC Series Automatic Reactive Power Compensation Controller？
This series of automatic reactive power compensation controller regard high-performance single-chip micro computers the basic hardware, adopt AC sampling, digital integration, filtration technology, can trace and compensate the reactive electricity intelligently. This method has prevented the problem caused when contactor input and cut off the capacitor, through compounding switch (input and cutoff mode of combining with crystal braking-tube and contactor ) and input and cutoff over-zero,so as to prevent the “surge current” caused while capacitor inputting.
Product size
Technical Characteristics of Reactive Power Compensation Controller
- Service conditions: Altitude ≤2000m, ambient temperature -25℃~50℃, humidity ≤90% at 20℃; ≤90% at 40℃, Installing gradient ≤5°
- Usage voltage range: (0.85~1.10)times rated voltage
- Max. Allowable over-current: 1.3 times rated current
- Control loop no: 1~12(settable)
- Input and cutofftime: dynamic state 100ms~30S, static state 1~250S(settable)
- under-voltage protection: 340V/180V; return difference 6V
- Over-voltage protection: 380~500V/230~260V; return difference 6V; (settable)
- CT variation: 50/5A~300/5A; (settable)
- Sensitivity: 100mA
- Measurement precision: Voltage: ±1.0% Current: ±1.0% Power factor: ±1.0% Reactive power: ±2.0%
Main Characteristics
Small volume, convenient for installing and maintenace, good water proof performance, and can be used for both outdoor and indoor.
Controlling parameter full digital operation, convenient for using, the data cannot lose when power off.
Digital display power network power factor, reactive power, voltage, current (one side), control parameter.
With the function of over-voltage, under-voltage judgment displays and fast cut off the compensated capacitor group.
With two working modes of manual and auto compensation.
It has the function of auto selecting the best mode to input and cutoff compens ation according to the result of capacitor group manual input.
With two working modes of cycle or optimizing input and cutoff, the compensation Includes controlling mode of 1:1:1:1, 1:2:2:2, 1:2:4:8, the compensator will automatically distinguish its code working mode of manual input duplexure capacitance value, it works according to the correspondence code mode.
With two working modes of power factor or reactive power;
Compensating mode: ①Phase splitting compensation
②Phase splitting and three-phase compensation
③Three-phase compensation.
Control mode: ①Crystal braking-tube input and cutoff
②Compound switch input and cut off
Why Choose ZHIMING's Reactive Power Compensation Controller?
Intelligent & Precise Compensation
Our reactive power compensation controller is built on high-performance single-chip microcomputers, adopting advanced AC sampling, digital integration and filtration technologies. It realizes intelligent tracking and accurate compensation of reactive electricity, ensuring stable and reliable power factor regulation for low-voltage power networks.
Zero Surge & Arc-Free Operation
Equipped with compound switch (thyristor + contactor) and zero-crossing switching technology, the controller completely eliminates the "surge current" caused by capacitor switching. There is no mechanical movement or electric arc during operation, avoiding the common faults of traditional contactor-controlled compensation devices.
Long Service Life & Low Maintenance
The arc-free and non-mechanical design of our reactive power compensation controller greatly reduces wear and tear of core components. It effectively extends the service life of matched capacitors and other main devices, cutting down long-term maintenance costs for users.
Fast Response for Frequent Scenarios
With ultra-fast dynamic switching time (100ms~30S) and static switching time (1~250S, adjustable), the controller is especially suitable for working conditions requiring frequent capacitor input and cutoff. It ensures real-time reactive power compensation and maintains optimal power supply quality at all times.
Energy-Saving & High-Efficiency Solution
As an advanced domestic and international compensator, the reactive power compensation controller significantly improves power factor, reduces reactive power loss of low-voltage power grids, and optimizes power supply quality. It is a cost-effective new-generation energy-saving product for industrial and commercial power systems.
FAQ
What specific low-voltage power grid grades is this reactive power compensation controller applicable to?
This controller is mainly designed for low-voltage power networks (typically 220V/380V systems). Its stable and intelligent reactive power tracking and compensation performance can be well adapted to the power quality regulation needs of industrial workshops, commercial buildings, and distribution stations with low-voltage power supply.
How does this reactive power compensation controller outperform traditional contactor-type compensation devices in terms of operational stability?
Can this reactive power compensation controller meet the compensation needs of scenarios with frequent load changes?
Absolutely. The controller has adjustable dynamic switching time (100ms~30S) and static switching time (1~250S). Its fast response speed can keep up with the rapid changes of reactive power in scenarios with frequent load start-stop (such as machining workshops, lifting equipment sites). It realizes real-time and accurate compensation and maintains the power factor at an optimal level.
Is this reactive power compensation controller compatible with different specifications of capacitors?
Yes. The controller supports adjustable CT ratio (50/5A~300/5A) and flexible control loop settings (1~12 loops). It can be matched with most common low-voltage capacitors on the market. Meanwhile, its zero-surge switching mode effectively reduces the impact on capacitors during operation and extends the service life of matched capacitor devices.
What are the key advantages of this reactive power compensation controller in energy-saving and cost-reducing aspects?
By intelligently compensating reactive power, the controller can significantly improve the power factor of the power grid, reduce reactive power loss and line loss, and help users avoid the penalty of low power factor imposed by power supply departments. In addition, its long-service-life design reduces the frequency of equipment replacement and maintenance, further saving the overall operation and maintenance costs for users.
