Intelligent nuclear phase device

Abstract

The invention discloses an intelligent power nuclear phase device, which comprises a central processing unit (CPU) board, a digital quantity sampling board, an analog quantity sampling board and a liquid crystal display board, wherein the boards are connected through a rear panel bus. The device is characterized by also comprising electric vector acquisition interfaces of intelligent secondary equipment in an intelligent transformer station and conventional secondary equipment in a conventional transformer station; by comparing electric vectors of different interfaces, the purpose of electricphase check is achieved; and the electric vector acquisition interfaces comprise an analog quantity input interface module, a 9-1 interface module, a 9-2 interface module and an FT3 interface module.The device can be used for comprehensive phase check of digital electric quantity and conventional analog electric quantity in the intelligent transformer station, and improves the field engineering debugging and daily operation and maintenance efficiency of the intelligent transformer station.

Description

technical field [0001] Aiming at the problem that it is difficult to check the phases of digital power and analog power in real-time and intuitively in an electric power system in an intelligent substation, the invention develops a multi-interface, configurable and universally applicable universal phase checking device. The invention belongs to the technical field of electric power system intelligent substation. Background technique [0002] The electronic transformer is used as the basic AC signal acquisition component in the smart substation, and its output part is different from the traditional electromagnetic transformer. The output signal is no longer an analog signal, but a digital signal. Therefore, the protection devices and measurement and control devices in the smart substation no longer need to perform sampling and analog-to-digital conversion, but directly read the digital signal output by the electronic transformer through the IEC61850 international standard com...

AI Technical Summary

Problems solved by technology

This has resulted in the coexistence of analog and digital quantities in the data acquisition part of the substation, increasing the complexity of the core phase of the substation

[0004] At present, there are many manufacturers that provide automation equipment for smart substations. Tester manufacturers at home and abroad are actively researching test instruments suitable for use in smart substations. Communication data messages are mainly used, but cannot satisfy the advanced application of unified real-time verification of digital interface and analog interface

At present, there is still a blank in the independent power phase verification device that supports the integrated access of digital and analog quantities.

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