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Wuhan GuoWei ZhiChuang Technology Co., Ltd. specializes in manufacturing a wide range of protection relays for voltages up to 110KV, including optical differential, bus differential, distance, and anti-islanding protection relays. These products are available in multiple series and configurations to meet diverse customer requirements. The company also supplies various system panels, such as PLC panels, excitation panels, industrial control panels, synchronizing panels, protection panels, metering panels, communication panels, remote terminal unit (RTU) panels, dispatching data network panels, AC/DC distribution panels, and more.
With extensive expertise in electrical engineering design and technical support, the company provides end-to-end solutions for power automation systems, including design, installation, and commissioning. Its products and services are widely used in substations, hydropower plants, thermal power plants, industrial facilities, and commercial buildings. Furthermore, the company develops protection control and automated monitoring systems for renewable energy applications, including photovoltaic and wind power generation.
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GWZC-9000 Drainage Pumping Station Automation System
Drainage Pumping Station Automation System—Forging a New Urban Flood Control Ecosystem
Drainage pump stations employ electromechanical systems for active water discharge, IoT and AI for precise regulation, and backup power for reliability. Digital twin platforms optimize decision-making with failure prediction and damage assessment. Each ¥100M investment reduces annual losses by ¥230M while saving 30% energy, as proven by Tokyo's flood defense system.
2025/07/23
Hydropower Station
Comprehensive Analysis of the Yarlung Zangbo River Hydropower Station
Massive hydropower potential, extreme seismic/geological challenges, unprecedented engineering (tunnels, dam, turbines), sensitive ecology, and critical transboundary impacts.​
2025/07/22
VT (Voltage Transformer ) Protection RelayRear View
Comprehensive Protection Relay: Full Analysis​
A comprehensive protection relay is an intelligent device that safeguards electrical systems by detecting faults (e.g., overcurrent, short circuits) and isolating affected equipment. It integrates multiple protection functions, ensures system reliability, and prevents damage. This guide covers its definition, working principle, protection targets, activation conditions, and outcomes.
2025/07/18
GWZC-9621 Distribution transformer protection relay
Three IEC International Standards for Electrical Relays Led by China Have Been Officially Released!
IEC 63522-6:2025 Electrical Relays – Tests and Measurements – Part 6: Contact Circuit Resistance (or Voltage Drop); IEC 63522-35:2025 Electrical Relays – Tests and Measurements – Part 35: Resistance to Cleaning Agents,IEC 63522-36:2025 Electrical Relays – Tests and Measurements – Part 36: Fire Hazard,Issuing Body: International Electrotechnical Commission (IEC)
2025/07/07
Technical Knowledge more
Wireless Temperature Monitoring System for Substations
Wireless Temperature Monitoring System: Application in Switchgear​
This article introduces the application of wireless temperature monitoring systems in high-voltage and low-voltage switchgear. The configuration of the wireless temperature monitoring system varies across different equipment. If you need a customized wireless temperature monitoring solution for your project, please visit our website for more information.
2025/09/08
GWZC-9804 Arc Flash Protection Relay
Switchgear Arc Flash Protection System Configuration Scheme
This article introduces the configuration scheme for a switchgear arc flash protection system. Busbar arc flash protection monitors the busbar compartment and trips the incoming breaker, while feeder arc flash protection monitors the circuit breaker compartment and cable compartment to trip the feeder breaker. A proper arc flash protection system configuration scheme can effectively protect personnel and equipment safety. For information on a reliable arc flash protection system configuration scheme, please visit our website.
2025/09/04
Arc Flash Protection Relay
Arc Protection Working Principle and Decision Process
Arc Flash Protection is a specialized safety system engineered to rapidly detect and mitigate destructive electrical arc flash faults. Unlike conventional overcurrent protection, it utilizes a combination of light and current sensors to identify an arc flash event within milliseconds. By triggering a circuit breaker to isolate the fault incredibly fast, Arc Flash Protection significantly reduces the explosive energy released, safeguarding personnel from severe injury and preventing extensive damage to electrical equipment like switchgear. This makes it an indispensable defense layer in industrial, commercial, and utility power systems.
2025/09/03
Motor Protection RelayRear View
Accelerated Protection Role, Function, and Principle
Accelerated protection mechanisms in protection relays ensure quick response to faults, minimizing damage and enhancing system stability by understanding its role, function, and principle.
2025/09/02
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+86-17621210051
+86-17621210051
+86-17621210051
+86-17621210051
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