Measuring device for action delay of dry contact of electronic equipment

Abstract

The invention relates to a measuring device for action delay of a dry contact of electronic equipment. The measuring device comprises detection cables, a signal detection circuit, a parallel interface, a computer and a switch, wherein the detection cables are arranged at the two ends of the dry contact of the electronic equipment to be measured, the detection cables are connected with the signal detection circuit, the output end of the signal detection circuit is connected with the computer through the parallel interface, and the switch is used for being connected with the computer and the electric equipment to be measured through different interfaces. The measuring device completely accords with information streams generated when the electronic equipment used in the power industry runs actually, can guarantee that the action delay of the dry contact of the electronic equipment putting into running meets technical condition requirements, avoids power system accidents caused due to the fact that the action delay of the dry contact exceeds the standard, and reduces life and property losses. Furthermore, the measuring device is high in measurement accuracy and simple and convenient to operate, can be used in a universal method for measuring the action delay of the dry contact of the electronic equipment used in the power industry, and has extremely wide application fields and prospects.

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...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a device for measuring the delay time of dry contact action of electronic equipment, so as to solve the problem that the lack of a unified method and equipment for measuring the delay time of dry contact action of electronic equipment used in the electric power industry makes it impossible for the purchaser to carry out the inspection and acceptance of the factory.

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