JL2000-ZK (USB) Power Monitoring and Control Unit-Jiangsu Laibao Electric Power Co., Ltd.

JL2000-ZK (USB) Power Monitoring and Control Unit

Product Overview

The JL2000-ZK (USB) Intelligent Integrated Measurement and Control Unit is a technologically advanced product developed by our company. Designed to meet the technical needs of power grids and the requirements of smart grid construction, it utilizes mature hybrid reactive power compensation control strategies and an advanced measurement and control platform. It not only connects to compensation capacitors to compensate for reactive power losses—thereby improving power factor, reducing line losses, and enhancing grid load capacity and power supply quality—but also monitors real-time grid operating data such as three-phase voltage, current, power factor, and harmonics. It enables real-time monitoring, data analysis, and report generation for entire low-voltage distribution lines.

Key Features

（1）Real-time measurement: Monitors the switching status of reactive power compensation devices and changes in capacitor control switch states in real time; records the switching times for each capacitor bank.

（2）Data statistics and analysis: Calculates and analyzes daily maximum, minimum, and average values for system power factor (phases A, B, and C), active power, reactive power, and load power factor, as well as daily switching counts; stores up to 150 days of data.

（3）Self-diagnosis and protection: Detects abnormal conditions such as over-voltage, under-voltage, over-temperature, over-current, and excessive voltage or current harmonics, and provides corresponding protection; logs fault events, storing up to the 100 most recent occurrences.

（4）Network communication: Supports networked communication with capacitor units, accommodating up to 64 units in a single network.

（5）USB communication: Allows for the export of 150 days of data—including maximum, minimum, and average values for system power factor (phases A, B, and C), active power, reactive power, and load power factor, along with daily switching counts—enabling on-site data retrieval.

（6）Security and Protection Features: Password protection is implemented for all terminal operations, including parameter configuration, function settings, and measurement calibration. All measurement data is retained for over 10 years following a power outage, and the terminal automatically reconnects to the network after power loss or disconnection.

Technical Specifications

Voltage	≤±0.2％
Current	≤±0.2％
Power (active, reactive)	≤±0.5％
Power factor	≤±0.5％
Electrical energy	≤±0.5％
Clock error	≤1 point/year
Harmonic error	≤±0.5％
Rated operating voltage	220V，The permissible deviation is -20% to +20%.
Current sampling	0～5A。
Power consumption	≤5W

Operating Environment

Scope of application	This product is suitable for 380V low‑voltage power distribution networks and can be installed for indoor or outdoor use.
Altitude	≤2000m
Harmonic distortion rate	THDu＜5%；THDi＜8%
Ambient temperature	-25℃～+40℃
Relative humidity	20%～90%（At 40°C）
Atmospheric pressure	79.5～106.0kPa
Environmental conditions	The surrounding medium must be free from explosion hazards, gases capable of damaging insulation or corroding metal, and conductive dust; the installation site should be free from severe vibration and exposure to rain or snow, and the installation inclination must not exceed 5%.

External Dimensions

External dimensions: 144 x 144 x 110 mm

Panel cutout dimensions: 139 x 139 mm