Simulation breaker with fault simulation function and simulation method
A technology for simulating circuit breakers and fault simulation, applied in instruments, measuring devices, measuring electricity, etc., to achieve the effect of perfecting the function of fault simulation
Active Publication Date: 2016-02-03
EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID
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Problems solved by technology
There is currently no simulated circuit breaker with perfect fault simulation function on the market
Method used
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[0046] The specific composition and working principle of the simulated circuit breaker device are introduced below.
[0047] This reference figure 1 As shown, a simulated circuit breaker with fault simulation function, the simulated circuit breaker device includes the main controller MCU and its peripheral circuits, input circuit, output circuit, opening main circuit, closing main circuit, input and output interface, host computer , power supply, etc.
[0048] Among them, the closing main circuit is used to simulate the closing action of the circuit breaker; the opening main circuit is used to simulate the opening action of the circuit breaker; the input circuit is used to transmit the entering closing main circuit or opening main circuit to the main controller for processing, and the output circuit includes a set of solid state relays (for a three-phase AC power grid, it is provided with two sets of three-phase opening main circuits and a set of three-phase closing main circ...
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The invention discloses a simulation breaker with a fault simulation function, comprising a closing main circuit, an opening main circuit, an input circuit, an output circuit and a main controller; the output terminal of the input circuit is connected to the input terminal of the output circuit through the main controller; each output circuit comprises a solid relay; the closing main circuit and the opening main circuit are provided with a first auxiliary contact and a second auxiliary contact which are corresponding to the corresponding solid relay; the closing main circuit also comprises a resistor R7, a resistor R8, a resistor R9, a closing resistor selection switch and a third auxiliary contact corresponding to a tripping position monitoring relay; the opening main circuit comprises a resistor R10, a resistor R11, a resistor R12, and an opening resistor selection switch. The invention also discloses a method for a simulation breaker to simulate the fault. The invention simulates the circuit breaker conditions of normality, non-normality and fault according to the configuration through the cooperation of the opening main circuit, the closing main circuit, the input circuit, the main controller and the output circuit.
Description
technical field [0001] The invention relates to the technical field of simulated circuit breakers, in particular to a simulated circuit breaker with a fault simulation function and a simulation method thereof. Background technique [0002] The circuit breaker is the key equipment in the power grid. At present, the focus of the regular inspection of relay protection in the power industry has changed from "test function" to "test circuit". The circuit of relay protection occupies the most important position. For any fixed inspection of relay protection, the transmission and the whole group of tests are the final steps. "Jump" or "not jump" becomes the last dish of the regular inspection feast. . [0003] Many units have established relay protection training rooms, large training bases, and some have real circuit breakers as tripping outlets, while small training rooms generally do not have real circuit breakers, or use simulated circuit breakers, and sometimes even have no ou...
Claims
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Inventor 廖华苏晓贾筱莹朱伟邓朝翥柳明姜宪彬何山李黄河
Owner EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID