This file is about the technical specifications of the XW-PLB type generator comprehensive protection device. It mainly introduces the characteristics and performance of the product, including the applicable range, input signals, output signals, voltage measurement, current measurement, frequency measurement, working power supply, power consumption, working environment, installation size, hole size, main functions, overvoltage protection, undervoltage protection, overload protection, overcurrent protection, short circuit protection, demagnetization protection, overspeed protection, underspeed protection, runaway protection, etc.
The XW-PLB comprehensive protection device is an intelligent controller designed to replace traditional relay‑based protection for medium and small power generators. It integrates overload, over‑current, short‑circuit, over‑voltage, under‑voltage, overspeed (flywheel), low‑speed, and voltage‑line‑drop protections, improving reliability and simplifying installation.
This manual describes the technical specifications, main protection functions, installation and wiring procedures, operation interface, parameter configuration, and fault handling. It guides users through connecting PT voltage and CT current inputs, setting relay outputs, and adjusting protection thresholds to match the specific generator and power station requirements. This manual is written in Chinese.
| Applicable range | 各类中、小型高压和低压发电机组 |
|---|---|
| Voltage measurement accuracy | 1.0级 |
| Current measurement accuracy | 1.0级 |
| Frequency measurement accuracy | 0.5级 |
| Operating temperature | -5°C to 45°C |
| Relative humidity | ≤ 90% |
| Maximum altitude | Below 2000 m |
Press the “参数” key, input the correct password, and the parameter indicator will flash; after 6 seconds of inactivity the device exits automatically.
It provides over‑voltage, under‑voltage, overload, over‑current, short‑circuit, low‑speed, overspeed (flywheel), voltage‑line‑drop, and fault‑signal outputs for generator protection.