Arc Suppression Reactor

The adjustable capacitance arc suppression coil is a secondary adjustable arc suppression coil. The main body of the arc suppression coil is composed of the main winding and the secondary winding, and the main body of the arc suppression coil is composed of the main winding and the secondary winding. Arc suppression reactor The secondary winding is connected to the capacitor regulating cabinet. By controlling the switching of secondary regulating capacitors through 4-5 sets of vacuum contactors, when all secondary capacitors are disconnected, the inductance of the main winding is minimized and the inductance current is maximized. After the capacitors are connected to the secondary winding, according to the principle of impedance conversion, it is equivalent to connecting the same power of capacitance at both ends of the main winding, which reduces the inductance current of the main winding. Therefore, by adjusting the capacity of the secondary capacitor, the inductance and current of the main winding can be controlled.

The capacitor adopts BKMJ thin film self-healing capacitor with a rated working voltage of 1000V. It is equipped with a current limiting coil inside or outside to limit the surge current at the moment of closing.There is also a discharge resistor installed

1. Voltage levels used: 6KV, 10KV, 35K, 66KV

2. Operation mode: Pre adjustment

3. Measurement error of capacitive current: ≤ 2%

4. Adjustment level: ≤ 32 levels

5. Residual current during single-phase grounding fault: ≤ 5A

6. Displacement voltage during system operation: ≤ 10%

Arc suppression reactor The adjustable capacitance arc suppression coil utilizes the refraction principle of a transformer to add a secondary capacitor load winding of the arc suppression coil. At the same time, several groups (usually four to five groups) of low-voltage capacitors are parallel connected to the secondary winding of the arc suppression coil. The number of secondary capacitors is controlled by the controller to control the on/off combination of vacuum switches or anti parallel thyristors, and the size of the secondary capacitance of the arc suppression coil is adjusted, Thus changing the magnitude of the inductance current on the primary side of the arc suppression coil.

The set of adjustable capacitance arc suppression coils generally consists of a grounding transformer, adjustable capacitance arc suppression coils, capacitor adjustment cabinet, microcomputer controller, control screen, damping resistance box, current transformer, voltage transformer, lightning arrester, isolation knife switch, etc.

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