Relay protection method and device
A technology of relay protection and relay, which is applied in the direction of emergency protection circuit devices, protection reacting to overcurrent, electrical components, etc., can solve problems affecting the reliability of relay protection, and achieve the goal of solving poor reliability and improving reliability Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0039] figure 1 It is a flow chart of a relay protection method provided by Embodiment 1 of the present invention. This embodiment is applicable to power system relay protection and other aspects. The method can be executed by a relay protection device, which can be implemented by software and / or or hardware, the device can be integrated with electronic equipment with relay protection functions such as computers, the method specifically includes the following steps:
[0040] Step 110, obtaining the maximum load current of the line, the voltage and current before the failure of the preset protection section in the line, and the fault voltage and fault current after the failure of the preset protection section.
[0041] Among them, the maximum load current of the line can be stored in the relay protection device in advance, the voltage and current before and after the failure of the preset protection section in the line can be collected by the voltage sensor and current sensor r...
Embodiment 2
[0048] figure 2It is a flowchart of a relay protection method provided by Embodiment 2 of the present invention. This embodiment is applicable to power system relay protection and other aspects. The method can be executed by a relay protection device, which can be implemented by software and / or or hardware, the device can be integrated with electronic equipment with relay protection functions such as computers, the method specifically includes the following steps:
[0049] Step 210, obtaining the maximum load current of the line, the voltage and current before the failure of the preset protection section in the line.
[0050] Among them, the maximum load current of the line can be stored in the relay protection device in advance, the voltage and current of the preset protection section in the line can be collected by the voltage sensor and the current sensor respectively, and the relay protection device can be electrically connected with the voltage sensor and the current sen...
Embodiment 3
[0086] Figure 4 It is a structural block diagram of a relay protection device provided in Embodiment 3 of the present invention, which includes a voltage and current acquisition module 310, an operating current determination module 320, and a state control module 330; wherein, the voltage and current acquisition module 310 is used to acquire the The maximum load current, the voltage and current before the failure of the preset protection section in the line, and the fault voltage and fault current after the failure of the preset protection section; the operating current determination module 320 is used to determine the voltage according to the preset protection section before failure and current, fault voltage and fault current, determine the tripping action current, and determine the overcurrent protection current according to the maximum load current; the state control module 330 is used to control the state of the relay in the line according to the fault current, tripping a...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com