Method for performing calibration time delay error testing on time delay calibration switch of intelligent substation
A smart substation and time delay error technology, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve the problems such as the inability to measure the delay calibration error of the time delay calibration switch, so as to reduce the knowledge level requirements, test The effect of high efficiency and simple parameter setting process
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[0028] The method for testing the delay error of the smart substation delay calibration switch provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] The method for testing the delay error of the time delay calibration switch for the intelligent substation provided by the present invention adopts the "delay calibration switch" for IEC61850-9-2 sampling value (SV) networking, and the protection device does not depend on the external synchronization clock source. The interpolation method realizes SV synchronization, and solves the problem of the large number of optical fibers in the smart substation under the current SV "direct acquisition" mode and the difficulty of maintaining the secondary system. The delay calibration switch calibrates the delay value of the switch transmitting and processing the SV message in the specific field of each frame of SV message. For multiple switches cascaded,...
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