Back to smartelemfg Home
Contact us Merchants settle in
Back to smartelemfg Home

Generator protection relay related product

GWZC-9887 Generator-Transformer Differential Protection Relay
details
GWZC-9887 Generator-Transformer Differential Protection Relay (87G|87T)

Product Overview: GWZC-9887 Generator-Transformer Differential Protection Relay provides complete differential protection for generator-transformer units. Features percentage differential protection, harmonic restraint, and IEC61850 communication support. Installs in switchgear panels for medium-small generator-transformer protection.

Product functions(ANSI):87H | 87 | 87A | 87B | 71M | 71T | 38 | 49 | 71O | 63PR | 27/81U | 40

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

GWZC-9886 Generator Backup Protection Relay
details
GWZC-9886 Generator Backup Protection Relay

Product Overview : The ​GWZC-9886​ is a generator backup relay for 10kV–35kV systems, offering overcurrent, under/overvoltage, and reverse power protection. Installed in generator panels, it ensures fault backup security.

Product functions(ANSI):50/51 | 51 | 49 | 46 | 50N/51N | 40 | 32 | 81O/81U | 59/27 | 59N | 64S | 60 | 27 | 27/81U | 74

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

GWZC-9885 Generator Rotor Earth Fault Protection Relay
details
GWZC-9885 Generator Rotor Earth Fault Protection Relay

Product Overview : GWZC-9885 Rotor Earth Fault Relay​ – Provides two-stage protection (alarm/trip) with insulation monitoring for generator rotors, preventing winding damage. Installed in protection/excitation panels.

Product functions(ANSI):50N/51N | 50G/51G

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

GWZC-9884 Generator Differential Protection Relay
details
GWZC-9884 Generator Differential Protection Relay(87H | 87 | 87A)

Product Overview : The ​GWZC-9884​ is a generator differential relay offering fast fault protection with harmonic restraint, ideal for power plants and industrial generators (6.6kV–24kV).

Product functions(ANSI):87H | 87 | 87A | 49

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

GWZW-9883  Generator Comprehensive Protection Relay
details
GWZW-9883 Generator Comprehensive Protection Relay

 Product Overview:The VIP-96S88C is a generator comprehensive protection relay that integrates differential protection and backup protection.

Product functions(ANSl):87G;60FL;50;50N;51;51N;51AC;40;49;46;46IT;58/59N;60FL;74;81L/81R

Communication functions:Ethernet 103, MODBUS RTU, 2×ETH, 2×RS485

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
Inquiry Consultation
+86-17621210051
+86-17621210051
+86-17621210051
+86-17621210051
home product email
live chat
my