Intelligent Reactive Power Compensation Controller
JKW(Y)
The JKW Intelligent Reactive Power Compensation Controller is a new type of power distribution measurement and control equipment integrating data acquisition, reactive power compensation, and power grid parameter analysis. It is suitable for monitoring and reactive power compensation control of AC 0.4KV, 50Hz low-voltage power distribution systems.
The JKW Intelligent Reactive Power Compensation Controller uses a high-speed digital signal processor as its core, employs AC sampling, and features a 256x128 dot-matrix LCD screen as its human-machine interface. It includes power distribution monitoring, reactive power compensation, harmonic analysis, and an adaptive frequency algorithm.
Operating Conditions:
Air Temperature: Air temperature not exceeding +65℃ and not lower than -25℃.
Atmospheric Conditions: Air humidity not exceeding 90% at 20℃; higher relative humidity is permissible at lower temperatures.
Altitude: Not exceeding 2500 meters.
Environmental Conditions: The surrounding medium is free from flammability and explosion hazards, corrosive gases, conductive dust, and rain/snow erosion; the installation location must not experience severe vibration.
Interruption Functions:
1. Real-time Data Monitoring:
Voltage, Current, Power Factor
Capacitor Bank Switching Status
Active Power, Reactive Power
Total Harmonic Distortion (THD) of Voltage, Total Harmonic Distortion (THD) of Current
2. Reactive Power Compensation: The sampled physical quantity is reactive power; there is no switching oscillation. Δ-type compensation method
3. Protection functions
Features self-test reset and automatic reset functions.
Features undervoltage and overvoltage protection functions.
Features low current protection function.
Features total harmonic distortion (THD) over-limit protection function.
1. Basic parameters
power supply voltage | AC 380V±20% |
Sampling voltage | AC 380V±20% |
Power frequency | 50 Hz ±5% |
Sampling current | 0～5A |
Maximum power consumption of the whole machine | 8W (depending on the power of the switching device being controlled) |
Control output contacts | twenty four Road D Type: Each DC 12V×20 mA (+12V) (output) 18 Road J Type: 220V / 5A (Relay output) |
2. Measurement accuracy
Voltage | ±0.5% |
Current | ±0.5% |
Active power | ±2.0% |
Reactive power | ±2.0% |
Power factor | ± 1.0% |
3. Parameter Settings
Parameter name | initial value | Parameter range | Detailed Explanation |
Compensation parameters | | | |
CT Transformer | 0001 | 1-5000 | The current transformer ratio of the incoming line cabinet: if the transformer is 500 Compare 5. Then the machine is set to 100 (using a ratio) |
Investment threshold | 0.95 | 0.80-1.00 | The set value represents the input threshold value. |
Removal threshold | 0.99 | 0.9 to -0.81 | The set value represents the cutoff threshold value. |
Delayed input | 010.00 | 1-250 | Delay time settings: such as 1 yes 1 Second |
Delayed resection | 005.00 | 1-250 | Resection delay time setting: such as 1 yes 1 Second |
Overvoltage protection | 450.0 | 400-480 | Overvoltage protection: When the mains voltage exceeds a set value, the capacitor is disconnected. |
Overvoltage alarm | 425.0 | 380-460 | Overvoltage alarm : Indicates a current voltage alarm; maintains the current capacitor state. |
Undervoltage protection | 360.0 | 280-380 | Undervoltage protection: When the mains voltage is lower than the set value, the capacitor is disconnected. |
Undercurrent protection | 0100 | 50-1000 | Undercurrent protection: such as 0100 yes 100 When the current in milliamperes is less than the set value, the capacitor is disconnected. |
Harmonic protection | 03.0 | 2-60 | Voltage harmonic protection: When the total harmonic distortion of the mains voltage exceeds a set value, the capacitor is disconnected. |
Control Mode | automatic | Manual/Automatic | Capacitor manual and automatic switching |
Capacitor Configuration | | | |
Sub-complementary path | / | / | No points to add |
Total number of paths | 18 | 0-18 | Number of common capacitor banks: One common capacitor bank occupies 1 Group, at most 18 Group |
compensation capacitor capacity | / | / | No points to add |
Common compensation capacitor capacity configuration | 20.0 | 1-99 | Common compensation capacitor encoding: such as the common compensation capacitor number 1 For 15Kvar, the 2 Units digit 20 Kvar 01 - Total capacity = 15; 02 - Total capacity = 20 And so on (each group's capacity needs to be set individually ). |
| | | |
Function Deactivation | / | | |
Overvoltage protection | / | Investment/Exit | Set to enable the feature, set to disable the feature. |
Overvoltage alarm | / | Investment/Exit | Set to enable the feature, set to disable the feature. |
Undervoltage protection | / | Investment/Exit | Set to enable the feature, set to disable the feature. |
Undercurrent protection | / | Investment/Exit | Set to enable the feature, set to disable the feature. |
Harmonic protection | / | Investment/Exit | Set to enable the feature, set to disable the feature. |
