Anhui rural power system transformation outdoor column type intelligent capacitor reactive power com

Brief working condition

Hefei Bengbu rural power grid renovation project, the power system has the following characteristics: the load distribution area is wide, the voltage level is low, the load is not concentrated, the transmission and distribution line is far, under normal circumstances, the small area is concentrated in a set of small capacity column transformer power supply. Because the transmission and distribution lines are far away, the load is not concentrated and other factors, the power factor of the power supply system is low.

Existing problem

1, the single-phase load of rural power grid users is more, resulting in serious three-phase imbalance of the system;

2, the power supply distance is far, the line loss is large, resulting in unstable power grid voltage, power factor is only about 0.8.

3, the load distribution is wide, the transformer outdoor column installation, compensation is more difficult.

4, harmonics lead to electrical failures, directly causing significant economic losses.

Treatment scheme

In view of the special working conditions of Hefei and Bengbu Rural Power Grid, Anhui Zhipeng Electric's coded low-voltage reactive power accurate compensation device is selected to carry out reactive power compensation and three-phase imbalance optimization, and the outdoor column installation method is breakthrough. Small size, easy installation, reliable performance, effectively improve the system power quality, greatly improve the system security.

Governance effect

Taking the test comparison before and after the transformer in a station in Bengbu as an example, the average power factor of three phases after treatment is above 0.99, and the reactive power of three phases is balanced.

Power Quality series -ZPAPF parallel active power filter device. ZPSVG static reactive power generator. ZP-PQI intelligent hybrid filter compensation device, ZP-STB intelligent voltage regulator and power saving device ZPTBB, ZPFC high voltage reactive power compensation device;

Power distribution energy saving series --ZPGQ motor intelligent solid state soft start device. ZP-BQ integrated machine series inverter, electric complete sets;

Voltage regulator, voltage regulator series --SBW automatic compensation type power regulator, SBW-H three-phase high-precision automatic AC regulator, ZP-UPS uninterruptible power supply;

Component products --ZP-CE low voltage capacitor, ZP-LE low voltage series reactor, ZP-T thyristor switch, ZP-ZC intelligent power capacitor;

Power construction series - electrical, distribution equipment upgrading, online testing, installation, technical services.