Full-automatic recloser type feeder automation function testing device

Abstract

The invention discloses a full-automatic recloser type feeder automation function testing device. The full-automatic recloser type feeder automation function testing device comprises a current outputunit, a voltage output unit, a switch state unit, a control unit and a wiring terminal; the current output unit, the voltage output unit, the switch state unit and the control unit are all located inside the device, and the wiring terminal is located outside the device. According to the invention, the actual operation condition can be simulated, and the switch state, telemetry acquisition and terminal strategy action are organically combined. The device is small in size and convenient to carry, and can simultaneously meet laboratory and field test requirements. The device only needs one current source to satisfy synchronous simulation of a current fault state and a normal state, and is flexible in output and low in cost. The device organically combines the voltage, the current and the switch state, can simulate the fault condition of each terminal in the actual distribution network fault state, and is more real in simulation.

Description

technical field [0001] The invention belongs to the technical field of power distribution automation, and in particular relates to a fully automatic recloser type feeder automatic function test device. Background technique [0002] The distribution automation system relies on feeder automation to achieve rapid isolation and self-healing of distribution network faults. Feeder automation is the main way to deal with distribution network faults. At present, it is mainly divided into centralized type and local type. The local type is divided into intelligent distributed and Recloser type. Centralized feeder automation uses the main station to collect terminal information to comprehensively judge the location of the fault, and intelligent distribution realizes fault isolation and self-healing through mutual communication between terminals. Both of them are highly dependent on communication, and functional applications are seriously affected when communication fails , and the def...

AI Technical Summary

Problems solved by technology

[0003] However, in the current test plan, the laboratory mainly uses a physical dynamic model platform or a digital simulation system to build a real grid structure and carry out terminal logic tests. It is expensive and not suitable for large-scale promotion and use. In field tests, more relays and analog circuit breakers are combined to realize functional testing by continuously changing the electrical output of relays. This method has a large number of devices, The operation process is complicated, and the requirements for testers are high. In addition, the simulated circuit breaker, output voltage, and output current are disconnected from each other in this way, which is quite different from the actual fault condition.

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