High-voltage circuit breaker automatic group switching capacitor cabinet

Product parameter

Overview

HZS-BKS series high-voltage circuit breaker automatic group switching capacitor cabinet according to the voltage and reactive power of the power supply bus, automatically switches the capacitor bank, tracks the change of the load, and enters reactive power compensation, thereby providing power factor, improving power supply quality, and reducing electric energy loss. Installed on the outlet bus side of a 35kv or 110kv substation, or installed in a 6, 10kv switchgear, and often installed in front of the control cabinet of a high-voltage motor in a working condition enterprise for on-site compensation.

The HZS-BKS series high-voltage circuit breaker automatic grouping switching capacitor cabinet automatically switches the capacitor bank according to the voltage and reactive power of the power supply bus, and tracks the change of the load to enter reactive power compensation, thereby providing power factor, improving power supply quality, and reducing electric energy loss. Installed on the outlet bus side of a 35kv or 110kv substation, or installed in a 6, 10kv switchgear, and often installed in front of the control cabinet of a high-voltage motor in a working condition enterprise for on-site compensation. This series occupies a very important role in the high-voltage capacitor cabinet.

This device has automatic reactive power compensation, automatic tracking of reactive load changes, switching on and off capacitor banks, improving power factor, and improving power quality; suppression of harmonic function, can be equipped with series reactors according to the harmonic conditions given on-site to form an LC Loop to suppress harmonics; perfect capacitor bank protection, with over-voltage protection, under-voltage protection, over-current protection, zero-sequence voltage protection, and capacitor branch unbalanced voltage protection.

Product one-time system diagram

product structure

The high-voltage circuit breaker switching capacitor cabinet is mainly composed of: reactive power compensation controller (PFC) and microcomputer capacitor protector (CXB), current transformer (CT), drop-out fuse (FU), lightning arrester (FV), discharge coil ( TV), high-voltage AC vacuum contactor (KM), reactor (L), capacitor protection high-voltage fuse (according to capacitor bank configuration) and power capacitor bank (C) (according to user distribution load) and other parts.

working principle

For the high-voltage circuit breaker switching capacitor cabinet, the system voltage transformer (PT) collects phase A and C voltage signals, and the system current transformer (CT) collects phase B current signals and transmits them to the HZS reactive power compensation controller. After the controller sampling circuit, the analog signals of voltage and current are obtained, and then through A/D conversion, the digital quantities of voltage, current, etc. are obtained, and then the voltage, current, active power, and no Parameters such as power factor, harmonic percentage, and system set points stored in fixed memory (users can choose different control modes according to the above parameters. For example: according to reactive power + voltage, voltage, current, power factor, etc. ) For comparison, the system decides under what conditions to operate the capacitor bank, and performs the opening and closing of the capacitor bank through the high-voltage AC vacuum contactor, so as to achieve the purpose of automatically switching the capacitor bank and compensating the reactive power of the line, so that the power grid can be connected The supply and demand of reactive power are automatically balanced on-site, which plays an important role in reducing line loss, improving power factor and system power transmission capacity, and improving the quality of power supply in the distribution network.

Product advantages

01 Strict component selection-focus on quality

Strict selection of component suppliers, must have professional production sites, office environment, and supplied products must have inspection certificates from domestic professional institutions, and have more than 8 years of production to be selected into the company's supplier list.

02 Clean working environment-focus on the brand

Standardized production plant area, automated production process, adopts modern automatic control and automatic self-inspection production line, no crossover, no failure; all-round testing equipment and testing process, just to create high-quality products!

03 Self-developed data collection and monitoring system, covering the country's regional communications, 24 hours of uninterrupted data collection, with basic functions such as remote adjustment, remote control, telemetry, and remote signaling, and can also be equipped with fault notification and compensation optimization, creating safety in a true sense The smart housekeeper who uses electricity and comfortably uses electricity!

Conditions of Use

One: working environment conditions

a. Outdoor ambient air temperature: -35℃～+45℃

b. Relative humidity of ambient air: 20%～90% at 40℃;

c. Atmospheric pressure: 2000 meters above sea level and below.

Two: Surrounding environment requirements

a. Strong vibration and shock are not allowed;

b. No gas that corrodes and destroys insulation, conductive medium, or dangerous medium is allowed, and no serious mold is allowed.

product model