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CNTBB10 series of high-voltage reactive power compensation devices
CNTBB10 series of high-voltage reactive power compensation devices

High-Voltage Reactive Power Compensation Device

High-Voltage Reactive Power Compensation Device is designed to flexibly compensate for reactive power according to grid demands. This device divides capacitors into several groups and uses vacuum circuit breakers or specialized vacuum contactors as switching devices. Through a microcomputer control system, it monitors grid voltage and current signals to automatically calculate the required reactive compensation. This not only improves the efficiency of high-voltage parallel capacitors but also ensures voltage quality and reactive power in the grid, reducing system losses.

Feature
1

Structural Design: Modular Structure: Each device consists of a control protection unit, an incoming cabinet unit, and capacitor units, facilitating maintenance.

2

Observation and Safety - Each unit is equipped with observation windows, live display indicators, and operational indicator lights. The incoming unit is equipped with an electromagnetic lock to meet safety requirements and ensure safe operation.

3

Protection Functions -The device has multiple protection features, including over-voltage and under-voltage protection, open delta protection, imbalance protection, over-current protection, and automatic compensation functionality.

4

According to the voltage priority principle, the device can automatically switch capacitor groups to ensure that the system operates without over-voltage, minimizes under-voltage compensation, and maintains low reactive power losses.

5

Control Capability: This device can control one to two bus sections and one to eight groups of capacitors, allowing for independent or unified control based on the substation's operational conditions, meeting various operational needs.

6

High-Voltage Reactive Power Compensation Device, with its flexibility, efficiency, and safety, has become an indispensable part of modern power systems, contributing to the stability and efficient operation of the grid.

Parameter
Rated voltage 6kV、10kV、35kV
Rated capacity ≤6000kvar(6kV)、≤12000kvar(10kV)、≤30000kvar(35kV)
The number of switching paths of the capacitor 1~4 routes
Capacitor wiring method Single or double star
Pitching method Automatic, manual optional
Reactance rate The appropriate reactance rate (1%, 4.5%-6%, 12%) can be selected according to the inrush current and harmonic conditions.
Installation: Indoor cabinet type, outdoor frame type
Control voltage 220VAC or 220VDC
Sample the signal Voltage transformer secondary voltage (100V), current transformer secondary current (5A)

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