An electronic device dry contact action delay measurement device

A technology of electronic equipment and measuring device, applied in circuit breaker testing and other directions, can solve the problems of lack of time delay measurement and unified method, equipment purchaser can not carry out factory acceptance and other problems, so as to avoid power system accidents, wide application fields and Prospect, effect on reducing loss of life and property

CN104142471BActive Publication Date: 2017-12-26STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-12-26

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Abstract

The invention relates to a device for measuring the delay time of dry contact action of electronic equipment. The measuring device includes a detection cable, a signal detection circuit, a parallel interface, a computer and a switch for being arranged at both ends of the dry contact of the electronic equipment under test, wherein the detection cable is connected to the signal detection circuit, and the output end of the signal detection circuit is connected to the computer through the parallel interface. The switch is used to connect the computer and the electronic device under test through its different interfaces. The invention fully complies with the information flow during the actual operation of electronic equipment used in the electric power industry, can ensure that the dry contact action delay of the electronic equipment put into operation meets the technical requirements, avoid power system accidents caused by excessive dry contact action delay, and reduce life and death. property loss; and with high measurement accuracy and convenient operation, it can be used as a general method for measuring the delay time of dry contact action of electronic equipment in the power industry, and has extremely wide application fields and prospects.
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Description

technical field

[0001] The invention relates to an electronic device dry contact action delay measurement device, which belongs to the technical field of electronic equipment used in the electric power industry. Background technique

[0002] At present, many electronic devices used in the power industry are controlled and operated through the opening and closing of dry contacts, and they all receive network messages of the 61850 protocol to drive dry contact actions. A key indicator of electronic equipment used in the power industry is the delay and time dispersion of dry contact action. The dry contact action delay refers to the time difference between the moment when the electronic device receives the instruction and the time when the dry contact operates. The time dispersion refers to the difference in the results of multiple measurements of the dry contact action delay, reflecting the stability of the dry contact action delay. Therefore, when the electronic equipment is...

Examples

Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] An embodiment of an electrical and electronic device dry contact action delay measuring device of the present invention is as follows:

[0016] Such as figure 1 As shown, the measurement device includes a detection cable, a signal detection circuit, a parallel interface, a computer and a switch for setting at both ends of the dry contact of the electronic equipment under test. The detection cable is connected to the signal detection circuit, and the output terminal of the signal detection circuit is It is connected to the computer, and the switch is used to connect the computer and the electronic device under test through its different interfaces. The computer and the electronic device under test are connected to the switch through optical fibers, and the electronic device under test is connected to one end of the dry contact action s...