Triple redundant digital protective relay and operating method therefor
AssigneeYpp Co., Ltd.
InventorsJong Han Shin, Yong Gil Kim, Jae Hyun kim
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Abstract
Provided are a triple redundant digital protective relay and an operating method therefor. The triple redundant digital protective relay according to the present invention includes: three power monitoring control devices which have a triple redundant structure and control a circuit breaker for separating a failed power system based on a 2 out of 3 voting using real-time mutual data communication; and a central communication device which acquires data related to an operating state of the power system from the three power monitoring control devices and manages the acquired data related to the operating state of the power system.
Claims10
A triple redundant digital protective relay comprising:
- three power monitoring control devices which have a triple redundant structure and control a circuit breaker for separating a failed power system based on a 2 out of 3 voting using real-time mutual data communication;
- and
- a central communication device which acquires data related to an operating state of the power system from the three power monitoring control devices and manages the acquired data related to the operating state of the power system.
A method for operating a triple redundant digital protective relay, the method comprising:
- detecting a failure or non-failure of a power system based on quantity of electricity calculated based on a voltage and a current;
- controlling a circuit breaker for separating a failed power system based on a 2 out of 3 voting using real-time mutual data communication through three power monitoring control devices which have a triple redundant structure;
- and
- acquiring data related to an operating state of the power system from the three power monitoring control devices and managing the acquired data related to the operating state of the power system.
Dependencies are inferred from the claim text.