JL3000 Automatic Power Factor Controller-Jiangsu Laibao Electric Power Co., Ltd.

JL3000 Automatic Power Factor Controller

The JL-3000 series reactive power compensation controller is primarily designed for the automatic control and protection of 1–2 main transformers and 1–3 capacitor banks. Its core algorithm comprehensively evaluates voltage fluctuations and reactive power deficits; by intelligently switching capacitor banks, it balances reactive power supply and demand, improves supply voltage quality, and reduces energy loss, ultimately achieving higher power factors and lower system losses.

Product Overview

Key Features

（1）Grouping and Regulation: Supports equal/unequal capacity grouping; utilizes a switching method for 1–3 capacitor banks.

（2）Harmonic Handling: Features harmonic display and protection functions; harmonic analysis is performed when secondary voltage ≥ 50V and secondary current ≥ 0.5A.

（3）Auxiliary Functions: Optional cloud service capability (availability depends on the specific model).

（4）Power Supply Compatibility: Supports AC 220V ±15% or DC 220V ±15% power input.

（5）Human-Machine Interface: Equipped with a 4.3-inch LCD screen (480×272) and supports button-based operation.

（6）Communication Capabilities: Uses an RS485 interface and supports communication protocols such as Modbus, CDT, IEC101, and IEC103.

Technical Specifications

Item	Details
External dimensions	321×181×110mm(Length × Width × Thickness)
Panel cutout dimensions	306×178mm(Length × Width)
Operating power	Rated voltage: AC/DC 220V (-20% to +10%),ripple factor ≤5%;Power consumption: ≤10W (normal), ≤15W (during operation).
Supply Rated sampling parameters	Busbar voltage: AC 100V (≤0.5VA per channel) Open‑delta voltage: AC 57.7V (≤0.5VA per channel) Current: 5A (≤0.5VA per channel)

4. Operating Environment

（1）Operating environment: Temperature -10°C to +55°C, relative humidity 5% to 95% (non-condensing).

（2）Storage and transportation: Temperature -25°C to +70°C, relative humidity ≤85%.