◆ Product Features
DKG-15H adopts phase separation compensation mode or three-phase common compensation and phase separation compensation comprehensive compensation mode, which can control the contactor or thyristor module switch;
▲ Three phase sampling signal, automatic identification of sampling current polarity;
▲ 128 × 64 large screen LCD display, full Chinese menu, various parameters can be set through the front panel buttons, easy to operate;
▲ Equipped with RS-485 and Modbus RTU communication functions;
▲ Set parameters for power failure protection, ensuring that user set parameters such as power factor, delay time, overvoltage cutoff, and communication address are not lost during power failure;
Advanced fuzzy control technology is adopted, with the power factor set by the user as the target limit, the sampled physical quantity as the reactive current of the power grid, and overvoltage and undercurrent as the limiting conditions;
▲ Provide grid parameters such as three-phase voltage, three-phase current, three-phase power factor, three-phase active power, three-phase reactive power, and four quadrant electrical energy;
The output circuit of the static compensator (relay output) adopts the method of first inputting the phase separation compensation capacitor, and then inputting the three-phase common compensation capacitor, cyclically switching, balancing the number of capacitor connections, and extending the fault free working time;
▲ The dynamic compensation output circuit (level output) can choose 8421 encoding switching mode, and the output circuit compensates for the grid load in one go without switching oscillation;
Dynamic compensation combined with zero crossing current triggers bidirectional thyristors, with fast response time, no arcing, no surge current, no overvoltage, and minimal harmonic components when switching capacitors.
◆ Technical indicators
▲ Rated operating voltage: US (UA)=220V AC, 50Hz;
▲ Sampling current: Is (IA) ≤ 5A, automatically identify the polarity of the sampling current;
▲ Sampling AC voltage power consumption:<0.1VA, sampling AC current power consumption:<0.5VA;
▲ AC current overload capacity: continuous operation at 2 times rated current, continuous operation at 10 times rated current for 5 seconds;
▲ AC voltage overload capacity: continuous operation at 1.2 times the rated voltage;
▲ Starting current: 0.1A;
▲ Input impedance: ≤ 0.05 Ω;
▲ COS φ preset: -0.90~0.90 (adjustable, with positive lag and negative lead), at the factory
The upper limit value of COS is pre-set to -0.95, and the lower limit value of COS is pre-set to 0.95;
▲ Input threshold: The reactive current of the power grid is ≥ 1.2Ic, and the COS value is less than the preset lower limit;
▲ Cut off threshold: The reactive current of the power grid is ≤ 0.5Ic, and COS φ is greater than the preset upper limit value;
(Ic is the compensating reactive current level of each step capacitor);
▲ Delay time: Static 1-60s (adjustable); Dynamic 20ms~60s (adjustable);
▲ Overvoltage protection: 242V~264V (adjustable, 110%~120%), factory preset 253V (115%), voltage hysteresis of 6V;
▲ Output contact capacity: dynamic 150mA, DC 12V/branch; Static 5A/250VAC;
▲ Control channels: a. 2 phase separation compensation channels, 7 three-phase common compensation channels.
b. 12 three-phase joint compensation.
▲ Dielectric strength: 2500VAC;
▲ Protection level: IP 30.
◆Overall dimensions
Hole size: 113 × 113mm, fixed by two matching brackets.