Fault simulation device for relay protection worker

A technology of fault simulation device and relay protection worker, applied in the direction of measuring device, measuring electricity, teaching model, etc., can solve the problems of poor privacy, lack of flexibility in setting fault types, and complicated operation, so as to achieve low cost and improve safety. , the effect of simple operation

Pending Publication Date: 2020-09-15
GUANGDONG POWER ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that many problems are increasingly exposed in the training by using the training teacher to manually set the fault. The types of fault settings are inflexible, and rewiring is required when switching faults, the operation is complicated, and the concealment is poor, etc.

Method used

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  • Fault simulation device for relay protection worker

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Embodiment Construction

[0010] Such as figure 1 As shown, a relay protection fault simulation device according to the present invention includes a power supply input terminal, a voltage loss protection simulation circuit, a trip simulation circuit and an alarm simulation circuit, the power supply input terminal is connected to a transformer, and the power supply input terminal is connected to a transformer. The output end includes a secondary first coil L1 and a secondary second coil L2, and the secondary first coil L1 and the secondary second coil L2 are connected in series;

[0011] The loss-of-voltage protection analog circuit includes an input end of the loss-of-voltage protection analog circuit and an output end of the loss-of-voltage protection analog circuit. A loss of voltage relay KM1 that controls the on-off of the input voltage and the output voltage is set between the output terminals of the voltage protection analog circuit;

[0012] The tripping simulation circuit includes a tripping s...

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Abstract

The invention discloses a fault simulation device for a relay protection worker. A power input terminal is connected with a transformer; the output terminal of the transformer includes a secondary coil I and a secondary coil II; an input terminal of a no-voltage protection simulation loop is connected with the secondary coil II, and a no-voltage relay is arranged between the input terminal of theno-voltage protection simulation loop and the output terminal of the no-voltage protection simulation loop; the input terminal of a tripping simulation loop is connected with the secondary coil II; afirst resistor and a tripping relay are respectively arranged between the input terminal of the tripping simulation loop and the output terminal of the tripping simulation loop in sequence; the inputterminal of an alarm simulation loop is connected with the secondary coil I; and a second resistor and an alarm relay are sequentially arranged between the input terminal of the alarm simulation loopand the output terminal of the alarm simulation loop respectively. The device can effectively simulate the relay protection fault action state, can flexibly set the type of fault simulation, is simplein operation, and is higher in secrecy, thereby greatly shortening the training practical operation preparation time, and improving the examination efficiency of a relay protection worker.

Description

technical field [0001] The invention relates to the technical field of relay protection fault devices, in particular to a relay protection fault simulation device. Background technique [0002] At present, many relay protection engineering examinations are completed by training teachers to manually set faults. For example, to make a protection logic, it needs to be input through a special instrument to simulate the fault action state of relay protection. The disadvantage is that many problems are increasingly exposed in the practice of manually setting faults by training teachers. The types of faults set are inflexible, and rewiring is required when switching faults, the operation is complicated, and the concealment is poor. Contents of the invention [0003] The object of the present invention is to provide a relay protection fault simulation device with simple operation and strong concealment. [0004] A relay protection fault simulation device according to the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G09B23/18
CPCG01R31/00G09B23/18
Inventor 缪新平吴晓东张其秋黄锐填陈天赐阮国威冯炬斌蔡溢益吴鸿盛严少夫刘静甫黄海范泉湖刁万芳陈远理
Owner GUANGDONG POWER ENG
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