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Power failure diagnosing method
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A diagnostic method and technology for power failures, applied in the field of power systems, can solve problems such as irreparable losses, achieve the effects of improving judgment accuracy and simplifying data processing
Active Publication Date: 2018-07-24
北京中芯标准科技有限公司
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[0007] Whether it is a horizontal fault or a vertical fault, it is easy to detect after the fault occurs, but if remedial measures are taken at this time, the losses caused by some faults will be irreparable
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specific Embodiment 1
[0037] This embodiment is an embodiment of a power fault diagnosis system.
[0038] The electrical fault diagnosis system of this embodiment, the electrical connection schematic diagram is as follows figure 1 shown. The power fault diagnosis system includes a circular loop arranged on the same plane as the power line, and an ammeter A, a parallel resistor array 1, a resistor array controller 2, and an evaluation system 3 are arranged in series on the loop;
[0039] The current data of the ammeter A is delivered to the resistance array controller 2;
[0040] The control signal of the resistance array controller 2 is transmitted to the parallel resistance array 1 for changing the number of parallel resistances connected to the loop;
[0041] The ammeter A is used to monitor whether the loop current exceeds the threshold. When the current exceeds the threshold, the resistor array controller 2 controls the parallel resistor array 1 to reduce the number of parallel resistors conn...
specific Embodiment 2
[0045] This embodiment is an embodiment of the power fault diagnosis system implemented on the power fault diagnosis system described in the first specific embodiment.
[0046] The power failure diagnosis method of this embodiment, the flow chart is as follows image 3 shown. The power fault diagnosis method includes the following steps:
[0047] Step a, high current fault diagnosis
[0048] The ammeter A transmits the current data to the resistance array controller 2, and the resistance array controller 2 judges whether the loop current exceeds the threshold, if:
[0049] If the current exceeds the threshold, the judgment result is that there is a large current fault in the power system; the resistor array controller 2 controls the parallel resistor array 1, reduces the number of parallel resistors connected to the circuit, and repeats this step;
[0050] If the current does not exceed the threshold, the judgment result is that there is no large current fault in the power ...
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Abstract
The invention provides a power failure diagnosing system and method, and belongs to the technical field of electric power system. The system comprises an annular loop which is arranged coplanar with an electric power circuit, wherein an ampere meter A, a parallel resistor array, a resistor array controller and an evaluation system are arranged on the loop in a series connection manner; the resistor array controller is used for changing the quantity of parallel resistors connected to the loop based on the current data of the ampere meter A; the evaluation system is provided with a guide rail, asliding block, an AC motor, a knocking hammer, a differential type pressure sensor and an evaluation handler and is used for converting the current variation data into pressure data with a linear area. On that basis, the high-current fault is diagnosed in advance, and then the low-current fault is diagnosed according to the method. With the adoption of the system and the method, the current of the electric power circuit can be monitored without loss on electricity energy in power transmission; early warming is performed before transverse fault and longitudinal fault occur.
Description
[0001] This application is a divisional application of the invention patent application "A Power Fault Diagnosis System and Diagnosis Method". [0002] The original filing date: 2016-05-25. [0003] Original application number: 2016103515032. [0004] Title of the original invention: a power fault diagnosis system and diagnosis method. technical field [0005] The invention relates to a power fault diagnosis method, which belongs to the technical field of power systems. Background technique [0006] Generally speaking, power system faults can be divided into two categories: horizontal faults and vertical faults. Among them, transverse faults refer to various types of short-circuit faults, and vertical faults mainly refer to various types of disconnection faults. [0007] Whether it is a horizontal fault or a vertical fault, it is easy to detect after the fault occurs, but if remedial measures are taken at this time, the losses caused by some faults will be irreparable. ...
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