Product Overview

The role of reactive power compensation devices in power supply systems is to improve the power factor of the grid, reduce the losses of power transformers and transmission lines, improve power supply efficiency, and improve the power supply environment. So the reactive power compensation device is in an indispensable and very important position in the power supply system. Reasonable selection of compensation devices can minimize network losses and improve the quality of the power grid. On the contrary, improper selection or use may cause various factors such as power supply system, voltage fluctuations, and increased harmonics.

Usage conditions

The widely used equipment in industrial production, such as AC asynchronous motors and induction cookers, are inductive loads. During the energy conversion process, these inductive loads cause the voltage applied to them to lead the current by an angle, and the cosine of this angle is called the power factor. When the power factor, i.e. reactive power, is high, there are the following hazards:

Increase the line current, increase the line loss, and waste electrical energy;

Due to the increase in line current, once the transmission line is far away, the voltage drop on the line will be greater. If the voltage is too low, it may affect the normal use of equipment;

After capacitance compensation

Increase the voltage of the busbar and feeder.

Improve the power factor of the unit's electricity consumption.

Reduce the total current of the power station's incoming lines.

Reducing the transmission of reactive energy in distribution lines can reduce energy loss on the lines.

Increase the load capacity of the transformer.

Explore the potential of equipment, increase its output, and fully improve its utilization rate.

Model meaning

Meaning of GGJ series reactive power compensation device model

technical parameter

Executive standards: GB/T14549, GB/T15576

Environmental temperature: -25 ℃~+55 ℃, relative humidity ≤ 90% RH (25 ℃)

Rated working voltage: three-phase four wire, system voltage 220V~1650V, according to user requirements

Harmonic absorption rate: average of 90% for 3rd and 5th harmonics, and average of 85% for 7th and 11th harmonics

Maximum reactive power compensation capacity per unit: 405kvar

Protection functions: overcurrent protection, overheating protection, overvoltage protection

Device startup and shutdown methods: automatic and manual

Continuous working temperature rise: The temperature of the inductor shall not exceed 60 ℃, and the temperature rise of the capacitor shall not exceed 30 ℃

Display: 11 parameters including voltage, current, reactive power, active power, power factor, etc

Cabinet type: Standard cabinets such as GGD, GCK, GCS, MNS, etc.

Product Description:

Structural diagram of GGJ series reactive power compensation device scheme