Key facts
- Manuals
- 4
- Languages
- ZH
- Last added
- 2012-03-16
Featured 春兴电力 manuals

WYQ-1 Controller User Manual
The WYQ-1 permanent‑magnet controller is designed for single‑coil vacuum circuit breakers, providing remote and manual split/close functions, fault monitoring, and energy‑storage capacitor management. It consists of a control unit and external energy‑storage capacitors, mounted inside the breaker housing.
The manual covers product overview, mechanical dimensions, technical parameters, wiring diagrams, installation steps, operation procedures, troubleshooting, and ordering information, ensuring safe and reliable operation in power‑grid applications. This manual is written in Chinese.
Covers: 概述 · 產品結構 · 產品主要技術參數 · 產品原理及端子接線 · 產品使用說明 · 安裝運行與維護

Chunxing Electric Technology LCD-17 Differential Relay Manual
The LCD-17 differential relay provides primary protection for single‑sided power substations, detecting internal short‑circuit, ground, inter‑turn and inter‑layer faults in two‑, three‑, and auto‑transformers. The document details its structure, principle of operation, and the various protection functions.
It also covers technical specifications, adjustment of current‑balancing taps, testing procedures for braking and harmonic suppression, inspection steps, and ordering information, enabling proper installation, commissioning, and service of the relay. This manual is written in Chinese.
Covers: Purpose · Structure · Operation Principle · Technical Performance and Features · Inspection and Debugging Methods · Use and Maintenance

Chunxing Electric ZGB-10 High-Voltage Cabinet Protection Unit Manual
The ZGB-10 high‑voltage cabinet protection unit is designed for installation in high‑voltage switchgear and provides over‑current, fast‑break, ground‑fault, undervoltage and three‑phase reclosing protection for lines up to 110 kV. The manual describes the device’s functional variants (ZGB‑11, ZGB‑12, ZGB‑13) and explains how to select protection modes via panel switches.
The document includes principle diagrams, detailed wiring instructions, rated parameters, test procedures, storage conditions, and warranty information. It is intended for engineers and technicians responsible for installation, commissioning, and maintenance of the protection unit. This manual is written in Chinese.
Covers: Overview · Functions and Features · Principle of Operation · Technical Data · Rated Parameters · Test Wiring Diagrams
Latest 春兴电力 manuals
WYQ-1 Controller User Manual
User Manual 10 pages · 307 KB · ZHUser manual for the WYQ-1 permanent‑magnet controller used with vacuum circuit breakers.
Chunxing Electric Technology LCD-17 Differential Relay Manual
Service Manual 12 pages · 352 KB · ZHThis manual explains the purpose, operation principle, wiring, adjustment, testing, and maintenance of the LCD-17 differential relay.
Chunxing electric technology LCD 16H transformer differential relay Manual
Chunxing Electric ZGB-10 High-Voltage Cabinet Protection Unit Manual
User Manual 24 pages · 615 KB · ZHUser manual for the Chunxing Electric ZGB-10 high‑voltage cabinet protection unit, covering functions, wiring, settings and test procedures.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Service Manual
Disassembly, diagnostics and part numbers, for repair.
Questions answered in 春兴电力 manuals
What is the command voltage for split/close operations?
The controller uses a 220 VDC command voltage for both split and close signals.
What indicates a fault condition on the controller?
The fault indicator lamp lights and the fault relay contacts close, providing a fault output signal.
What is the rated current of the LCD-17 relay?
The relay is rated for 5 A at 50 Hz.
From: Chunxing Electric Technology LCD-17 Differential Relay Manual
What brake coefficient range does the LCD-17 provide?
The proportional brake coefficient can be set between 0.4 and 0.6.
From: Chunxing Electric Technology LCD-17 Differential Relay Manual
What are the rated parameters for the overcurrent fast‑break protection?
The overcurrent fast‑break protection is rated for a current of 1.5 to 10 A and a frequency of 50 Hz.
From: Chunxing Electric ZGB-10 High-Voltage Cabinet Protection Unit Manual
How is the ground protection configured?
Ground protection is rated for a current of 1 A and a frequency of 50 Hz, selectable via the panel switch.
From: Chunxing Electric ZGB-10 High-Voltage Cabinet Protection Unit Manual
