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EHV Series Protection Device

Application Scenarios

Applicable to 220 kV and above voltage level substations, providing comprehensive protection for transformers, busbars, lines, and other equipment.

Device Selection

Device Name	Model	Application
220 kV transformer protection device	EPS-3630T2-GCN	220 kV transformer protection, conventional station
220kV and above double busbar and double busbar with double section busbar protection devices	EPS-3650A-GCN	220kV and above busbar protection, conventional substation
220kV and above line longitudinal differential protection devices	EPS-3621A-GCN	220kV-750kV line protection, conventional substation
220kV and above non-electrical protection devices	EPS-3632	220kV and above non-electrical protection, conventional substation
220kV and above operation boxes	EPS-3680	Double-trip coil phase-segregated or three-phase operation boxes, conventional substation
220 kV transformer protection device	EPS-3630T2-DA-GZK	220kV transformer protection, smart substation
220kV and above double busbar and double busbar with double section busbar protection devices	EPS-3650A-DA-GZK	220kV and above busbar protection, smart substation
220kV and above line longitudinal differential protection devices	EPS-3621A-DA-GZK	220kV-750kV line protection, smart substation

Functional Features

Comprehensive Security and Controllability

Ensures supply chain security, eliminates software vulnerabilities and potential risks, and enhances the intrinsic safety level of the power grid
Innovative Protection Algorithms

Achieves innovative optimization in protection principles and fault identification, with multiple invention patents
Dual Verification

Introduces redundant verification mechanisms to perform dual verification on critical data and operations