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​Automatic Bus Transfer (ABT)​​ related product

GWZC-9661 Automatic Transfer Switch (ATS)​​
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GWZC-9661 Automatic Transfer Switch (ATS)​​

Product Overview : The ​GWZC-9661 Automatic Transfer Switch (ATS)​​ automatically switches power sources to ensure uninterrupted supply, with voltage/frequency monitoring and fault protection for critical facilities. Complies with IEC/IEEE standards.

Product functions(ANSI):50/27| 50/51| 79| 60| 74

Communication functions : IEC61850(Optional) | ​​IEC 60870-5-103 | MODBUS RTU | 1× Ethernet Ports | 1× RS-485

GWZC-9862 Incoming Line Auto-transfer Relay
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GWZC-9862 Incoming Line Auto-transfer Relay (50/27)

Product Overview : The ​GWZC-9862 Auto-Transfer Relay​ ensures ​uninterrupted power supply​ by automatically switching to backup sources in ​35kV substations and industrial plants. It features ​voltage/current monitoring, programmable delays, and fault logging, with ​IEC 61850/Modbus support.

Product functions(ANSI):50/27 | 50/51 | 51 | 49 | 74

Communication functions : IEC61850 | ​​IEC 60870-5-103 | MODBUS RTU | 2× Ethernet Ports | 2× RS-485

GWZC-9861 Bus-Tie Automatic Transfer Protection Relay
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GWZC-9861 Bus-Tie Automatic Transfer Protection Relay

Product Overview:GWZC-9861 Bus-Tie Automatic Transfer Protection Relay is suitable for automatic transfer of incoming line switches, inner bridge switches, and main transformer switches at voltage levels below 110kV. It can be installed in panel assemblies or locally within switchgear cabinets.

Product functions(ANSI):50/51 | 51VI | 49 | 74
Communication functions: IEC61850 | ​​IEC 60870-5-103 | MODBUS RTU | 2× Ethernet Ports | 2× RS-485

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
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