JKW-15FA-18J Reactive power split phase automatic compensation controller

1. Overview
JKW-15FA series reactive power split-phase automatic compensation controller (hereinafter referred to as the controller), using a high-performance 16-bit microprocessor as the core device to simultaneously obtain 3-phase voltage and 3-phase current signals, provided by a single controller 18 control loops, such as the structure of the sub-machine (single host can have 2 sub-machines), it can provide up to 54 control loops. Each controller provides 3 types of full compensation, full compensation, and total compensation. Compensation plan. Provide 12 kinds of capacitor bank throwing methods (output codes) at the same time, users can choose arbitrarily by modifying the control parameters, and the common compensation output loop and the separate compensation output loop can be modified arbitrarily by modifying the control parameters. Once the control parameters are modified, they will be saved permanently, and the power will be turned off. Not lost. Provides RS485 interface and adopts MODBUS-RTU communication protocol, which can remotely complete functions such as switching on and off of capacitor banks, modification of control parameters, monitoring of power parameters and capacitor bank switching states. The combination of fundamental wave power factor and fundamental reactive power Control the switching of the capacitor bank, stable switching without switching oscillations, insensitive to voltage harmonic current harmonic interference, using character LCD to display control parameters and power parameters, friendly man-machine interface, beautiful appearance. Suitable for AC 45Hz-65Hz , Automatic control of reactive power compensation of power system below 0.4KV.

2. Features
(1) Calculate the switching capacitor capacity based on the fundamental reactive power, which can avoid various forms of switching oscillations, and can correctly display the power factor of the grid in the presence of harmonics.
(2) The power factor measurement accuracy is high, and the display range is wide.
(3) There are 12 kinds of capacitor capacity coding methods for users to choose.
(4) Reprogrammable compensation scheme and output circuit.
(5) A single machine has a maximum of 18 outputs, and a sub-machine has a maximum of 54 outputs.
(6) Large-screen LCD display, Chinese operation, friendly man-machine interface and convenient operation.
(7) Various control parameters are all digitally adjustable, intuitive and easy to use.
(8) It has two working modes: automatic operation and manual operation.
(9) Provide an alarm port for passive switch signal output, and the alarm drive event can be programmed.
(10) It has the protection functions of overvoltage, undervoltage, distortion rate over standard, and temperature over standard.
(11) It has a power-down protection function to control the parameters not to be lost after power-off.
(12) The current signal input impedance is low ≤0.01 ohm.
(13) The target power factor adjustment range is wide.
(14) With RS485 communication interface.
(15) The controller with communication function produced by the company is equipped with free application background software (users can download and install on the company's website). This software can run on the Windows-2000-Xp-Vista operating system, the entire software It is a graphical interface and simple operation. Many operations can be completed by clicking the mouse. The main functions include remotely modifying control parameters, viewing control parameters, viewing power parameters, viewing capacitor bank switching status, remote switching capacitor bank, etc., and provides communication protocols. Convenient for the secondary development of users. At the same time, it integrates software tools for automatic generation of compensation schemes, serial port debugging software tools, etc.

3. Technical parameters
Power supply voltage: 220V (1-2 feet) or 380V (1-3 feet), with two power input ports of different voltage levels, 380V power supply is recommended if possible.
Signal voltage: AC50V-275V (phase voltage).
Signal current: AC0-5.5A.
Working frequency: 45-65Hz. Undervoltage threshold: 176V.
Minimum working current (sensitivity): 50mA.
The fastest response speed: 500 milliseconds or 1 second.
RS485-A0B0 load intensity: 32 pcs.
RS485-A1B1 load intensity: 2 pcs.
Pins 6-7 are used for DC power output with a capacity of 5V/50mA. It can supply power to the micro-power wireless communication module (only available for independent hosts).
Control output passive switching signal capacity: AC250V3A/channel.
Control output DC voltage signal capacity: minus 12V10mA/channel.
Alarm passive switch signal capacity: 250V3A/channel.
Energy consumption of the whole machine: <8VA.
Protection level: IP30 shell.
Connection method: screw fixation with pluggable terminal block.
Installation method: embedded installation inverted tooth attachment fixed.
Installation size: physical size 138mm×138mm, opening size 139mm×139mm.
Dimensions: length (145mm) × width (145mm) × depth (75mm).

Four, JKW-15FA type controller and upper computer and auxiliary computer (slave) communication connection topology diagram

5. Conditions of use
(1) The altitude is not higher than 2500 meters.
(2) Ambient temperature-20°C to +50°C.
(3) The air humidity does not exceed 50% at 40°C, and does not exceed 90% at 20°C.
(4) There is no corrosive gas, no conductive dust, and no flammable and explosive media in the surrounding environment.
(5) There is no severe vibration at the installation site.

Six, wiring diagram