Products Category

High-Voltage Smart Capacitor Bank

YDKTBBZ
High-Voltage Reactive Power Compensation Complete Set (YDKTBBZ) provides solutions for high-voltage compensation.
YDKTBBZ is suitable for 6~35kV systems, providing solutions for power factor correction, improving voltage quality, and reducing line losses.
YDKTBBZ consists of shunt capacitors, series reactors, zinc oxide arresters, discharge coils, vacuum contactors, disconnector switches, fuses, a power factor controller, and combined main and control circuits.

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Features Technical Indicators Overall Dimension

Assembly Composition
employ single-star or double-star main wiring configurations.
includes: vacuum contactor, shunt capacitor, series reactor, discharge coil, zinc oxide arrester, expulsion fuse, etc.
Composed of an incoming line cabinet and grouped compensation cabinets.

Operating Environment
●Site Altitude: < 1000 m
●Ambient Temperature: -40 ~ +45 °C
●Relative Humidity: < 85% (at 20±5 °C)
●Inclination of installation surface: ≤ 5 degrees
●Installation site shall be free from severe vibration, harmful gases/vapors, and conductive/explosive dust particles.
●Indoor installations require adequate ventilation.
●The switching device for this assembly utilizes high-quality vacuum circuit breakers or vacuum contactors.
●The upstream system should be equipped with over-voltage, under-voltage, over-current, and short-circuit relay protection.

Technical Characteristics
Capacitance Tolerance: -3% ~ +5%. Deviation between series segments < 1%. Phase-to-phase deviation < 3%.
Operating Voltage: Capable of continuous operation under 1.10 Un power-frequency steady-state voltage. Under this
condition, the peak value including all harmonic components shall be ≤ 1.2 Un.
Current Rating: Permitted current up to 1.43 In.
Capacitor Protection: Utilizes both internal and external fuse protection.
Switching Logic: Cyclic switching of capacitor banks (first-on, last-off sequence) with configurable switching delays.
Vacuum Contactor: Features frequent operation capability, fast bounce-free closing/opening, low re-ignition rate
during interruption, reliable operation, minimal maintenance, and long service life.

Model Number