Real-time checking device and real-time checking method for analog quantity sampling loop of intelligent transformer substation protecting device

Abstract

The invention discloses a real-time checking device and a real-time checking method for an analog quantity sampling loop of an intelligent transformer substation protecting device. The real-time checking device comprises an analyzing module, a configuring module, a sampling module, a judging module and an output module. The configuring module is connected with the analyzing module and the judging module. The judging module is connected with the sampling module and the output module. The analyzing module is used for analyzing an SCD file of the intelligent transformer substation and extracting an IED equipment list in the SCD file. The configuring module configures an interval to which each set of IED equipment is affiliated according to the IED equipment list and classifying the IED equipment according to the interval. The sampling module acquires analog quantity measurement data of each set of IED equipment from a station control layer. The judging module is used for performing redundant checking on the analog amount loop of each set of IED equipment in the interval. The output module performs outputting and displaying of a judgment result of the judgment module. The real-time checking device and the real-time checking method have advantages of improving checking speed on the condition of analog quantity loop fault of the protecting device, improving reliability of the protecting device and ensuring integral power supplying reliability of the power grid.

Description

technical field [0001] The invention relates to a real-time verification device and method for an analog quantity sampling loop of an intelligent substation protection device. Background technique [0002] Under the traditional operation and maintenance mode of smart substations, it is necessary to regularly arrange personnel to enter the station for inspections to observe and record the status of protection devices and related devices, and to evaluate their operating status. Carry out regular maintenance on protective devices and their associated secondary circuits. With the expansion of the scale of the power grid, this inspection and maintenance method has greatly increased the cost of manpower and capital. Traditional operation and maintenance and even special operation and maintenance modes such as special maintenance are unsustainable, and hidden dangers of equipment cannot be found in time. [0003] With the improvement of power safety and operating cost requirements...

AI Technical Summary

Problems solved by technology

For the protection equipment of the smart substation, especially its analog circuit, when a problem occurs, it cannot be located in a timely and effective manner, and the real-time performance is poor, which reduces the overall power supply reliability of the power grid.

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