Products Category

Low Voltage Reactive Power Compensation Controller (Power Factor Type)

YD-8CK
The low-voltage reactive power compensation controller (hereinafter referred to as the controller) is a next-generation low-voltage reactive power compensation controller designed and developed in accordance with relevant national technical standards and regulations and actual user requirements. It utilizes a dedicated power parameter acquisition chip and a 32-bit ARM processor. It features an elegant appearance and is easy to install and use. Human-computer interaction is achieved through a digital tube display and push buttons. It connects to the intelligent integrated power capacitor via 485 communication. Controlled physical quantities include voltage, current, and power factor. Using AC sampling technology, it is particularly suitable for applications with large power factor fluctuations. It offers low actuation times and high control accuracy.

Consult

Features Technical Indicators Overall Dimension

1. AC sampling acquires data such as voltage, current, power, and power factor, and calculates reactive power shortfalls. Harmonics from the 2nd to the 19th order for each phase voltage and current are collected to calculate the total harmonic distortion of the voltage and current.
2. Dynamically displays various power distribution parameter values, making parameter setting simple and quick, and settings are retained even after a power outage.
3. Automatically detects the number and capacity of smart capacitors and controls their switching based on grid reactive power parameters.
4. Features alarms for overvoltage, undervoltage, voltage, undercurrent, overtemperature, and voltage. When grid parameters exceed set limits, the controller quickly disconnects active capacitors and locks out the output, protecting their safe operation and extending their service life.
5. Comprehensive calculations of voltage, current, power factor, and reactive power are used, with voltage hysteresis factor factored into control decisions, ensuring more precise compensation and preventing switching oscillations.
6. The above criteria values are sampled at multiple points during the action delay period, and reactive power trends are determined based on the values at each point. This avoids the misjudgment caused by single-point sampling at the action point of conventional controllers. In situations with large power factor fluctuations, the required reactive power compensation and the compensation direction (on or off) can be accurately determined.
7. It features a manual/automatic switching function. In the automatic setting, capacitors are switched on or off based on a combination of factors: voltage, load, power factor, and reactive power shortage. In the manual setting, capacitors can be manually switched on or off, facilitating factory commissioning and rapid capacitor switching. Simulated switching is available in both manual and automatic modes.
8. Switching principle: Capacitors of the same capacity are switched on and off based on the number of actuations, with the capacitor with the least number of actuations being switched on first. Capacitors of different capacities are switched on and off based on reactive power shortage.
Product Model

Description:

Mixed compensation is suitable for reactive power compensation in three-phase unbalanced load locations, controlling separate compensation intelligent capacitors and common compensation capacitors.

Common compensation is suitable for reactive power compensation in three-phase balanced load locations, controlling common compensation intelligent capacitors.

Operating Environment

Altitude: ≤ 2000m

Relative humidity: 20% to 90% (20°C)

Ambient humidity: -25°C to 70°C

Avoid the presence of flammable or explosive media, conductive dust, or corrosive gases.

Parameters:

1. Measurement Accuracy:

Voltage: ≤±0.5% (80%-120% rated voltage range)

Current: ≤±1.0% (50%-100% rated current range)

Power Factor: ≤±1.5%

Reactive Power: ≤±2%

Temperature: ≤1°C.

2. Output Mode: Communication-controlled output, controls our smart capacitor products.

3. Power Supply Requirements:

Operating Voltage: 380V AC

Voltage Tolerance: ±20%

Rated Frequency: 50Hz±5%

Power Consumption: <5W

4. Network Quantity: YD-8CKZI: ≤24 common-compensation smart capacitors, YD-8CKHI: 24 total units, ≤12 separate-compensation smart capacitors, the remainder can be common-compensation smart capacitors.