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Reactive Power Compensation Harmonic Suppressing

YMSVC Type High-voltage Dynamic Reactive Power Compensation Device

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1. Scope of Application

YMSVC type dynamic compensation device is mainly used for dynamic reactive power compensation of power system above 6KV in order to improve power factor, stabilize voltage, filtering harmonics and improve the power quality of power grid. This device is widely used in the industries such as coal, electrified railways, chemical and steels, etc, and the energy saving effects are obvious.

 

2. Model Introduction

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3、工作原理:

3. Working Principle

YMSVC type high-voltage dynamic reactive power compensation and filtering device is composed of compensation (or filtering) branch and magnetically controlled reactor (MCR) branch, in which, the compensation or filtering branch is fixed at busbar and realizes continuous and dynamic adjustment of reactive power by adjusting the output capacity of MCR.

As the core part of the complete set of device, the MCR can adjust the output capacity based on DC magnetic principles and adjustment of magnetic saturation of iron core. It can realize dynamic compensation of reactive power. This device is featured by small output harmonic, low power losses, maintenance-free, simple structure, high reliability and small space occupied, making it the ideal dynamic reactive power compensation and voltage adjustment device.

4. Diagram of the System

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5. Main Components

5.1. Compensation (or filtering) branch: shunt capacitor, series reactor, discharge coil, isolating switch (or vacuum switch), jet fuse, cabinet (framework), lightning arrester and other components.

5.2. MCR branch: MCR, thyristor, current transformer and controller, etc.

6. Main Technical Parameters

6.1. Voltage level: 6-330KV (including 27.5KV single phase)

6.2. Capacity: 150kVar-100000kVar;

6.3. Response time: 100-300ms in general, or less than 30ms in fast mode

6.4. Adjustment range: 2%-100%;

6.5. losses: 0.3%-0.8%

6.6. Noise: less than 65dB

7. Major Technical Characteristics

7.1. It can realize continuous and dynamic adjustment, the compensation effects are good;

7.2. The device is controlled at low voltage and has high reliability;

7.3. Small space occupied and flexible arrangement;
7.4. Natural heat dissipation, low operation cost;

7.5. 20-year maintenance- free

7.6. Filter needs no switching, no inrush current and can achieve good effects of filtering.