Simulation system of microcomputer relay protection logical test signal system

A signal system and relay protection technology, which is applied to the components of the TV system, control/regulation system, TV, etc., can solve the problems of inability to conduct comprehensive logic tests, long power outages, etc., to improve test efficiency and reduce risk , Guarantee the effect of test quality

Inactive Publication Date: 2012-06-06
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These have high requirements for communication, security systems and technical solutions, and require a long power outage time. Some special functions cannot be fully logically tested when the external conditions are not met.

Method used

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  • Simulation system of microcomputer relay protection logical test signal system
  • Simulation system of microcomputer relay protection logical test signal system
  • Simulation system of microcomputer relay protection logical test signal system

Examples

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Embodiment Construction

[0013] Such as figure 1 Shown: A microcomputer relay protection logic test signal system simulation system, which includes: a comprehensive protection device 1 and a switch connected to it as a loop and its secondary loop signal system 2, it also includes a signal power supply 3, which simultaneously The switch and its secondary circuit signal system 2 are connected to the comprehensive protection device 1 .

[0014] In the computerized relay protection logic test signal system simulation system, the switch and its secondary loop signal system include a human-computer interaction system and a PLC connected together by two-way transmission, and the human-computer interaction system has a signal loop Templates for diagrams, control circuit diagrams, and high-voltage switch schematic diagrams; the PLC is used to simulate switch closing logic and opening logic programs, and its input and output terminals are connected to the DI / DO signal of the comprehensive protection device for ...

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Abstract

The invention relates to a microcomputer relay protection simulation system, and in particular relates to a simulation system of a microcomputer relay protection logical test signal system. The simulation system of the microcomputer relay protection logical test signal system comprises a comprehensive protector, a switch which is connected with the comprehensive protector to form a circuit and a secondary circuit signal system of the switch, and the simulation system of the microcomputer relay protection logical test signal system also comprises a signal power supply, wherein the signal power supply, the switch and the secondary circuit signal system of the switch are connected with the comprehensive protector in parallel. The simulation system provided by the invention can realize simulation on working conditions, a control loop and a secondary signal environment of the switch in a relay protection secondary circuit, thus an application logical program test of the comprehensive protector can be changed into a laboratory simulation test from field measurement.

Description

technical field [0001] The invention relates to a computer-based relay protection simulation system, in particular to a simulation system of a computer-based relay protection signal system. Background technique [0002] Relay protection plays a very important role in the power supply and distribution system. It is responsible for the function of alarming or sending trip instructions when the system is not operating normally or fails. The secondary circuit of relay protection is a complex circuit with multiple functions, generally including functions such as control, signal, relay protection and automatic devices, operating power supply, measurement and monitoring of various electrical equipment or lines. [0003] Generally, the secondary circuit is built with pure hardware such as intermediate relays and time relays to realize various secondary logic and conditional locking. Electrical personnel must be on site, through the actual simulation of the primary working condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H04N5/361F25B49/00
Inventor 沈国芳陆志明杨左勇
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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