New intelligent compensation series controller, fully digital design, human-machine interface sampling large screen LCD Chinese display, modular assembly, streamlined shell design, can display real-time power factor, voltage, current, active power, reactive power, frequency, total voltage harmonic distortion rate, total current harmonic distortion rate, switching progress indication, and capacitor switching status indication of the power grid. It can be set to support multiple switching modes such as equal capacitance/blur, and the sampled physical quantity is reactive power. It has two working modes: manual and automatic. Special functions can be customized.

1、 Product Model Definition

HD-2 □-□-□

The explanation is as follows:

2、 Product Features

Set Function

a. Set current conversion ratio, target power factor, switching threshold, switching delay, capacitor configuration, harmonic voltage total distortion rate protection setting, harmonic current total distortion rate protection setting, communication parameters, etc.

b. Set parameters to be automatically saved and not lost in case of power failure.

Reactive power compensation function

a. The sampled physical quantity is reactive power, with high compensation accuracy and no switching oscillation.

b. It has two operating modes: manual switching and automatic switching.

c. Logical switching method, with each group's capacitance set freely.

d. The control output can adapt to different switching components such as electronic switches, AC contactors, composite electronic switches, or vacuum contactors.

e. Control output contacts 1-24, each with DC12V 60mA or AC220V 5A.

Protection function

a. Equipped with undervoltage and overvoltage protection functions. b. Over temperature protection function. c. Has harmonic over limit protection function.

Communication function

More than 12 channels have RS485 data transmission interfaces and support MODBUS communication protocol. Through its connection with computers/meter readers, it can detect real-time parameters related to the power grid, set parameters, work status, modify preset parameters, and achieve local or remote collection and exchange of various data information.

Over limit and fault warning function

When there is a fault in the power grid or a parameter exceeds the limit, the word "alarm" flashes and lights up, and the value of the exceeded item flashes to indicate that the parameter has exceeded the limit.