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Primary and secondary fusion switch action characteristic tester and test method

A switching action, tester technology, applied in circuit breaker testing, instrumentation, measuring electricity, etc., can solve the problem of inability to simulate post-trip, reclosing, re-trip, inability to accurately and reliably verify the switch protection action, and inapplicable columns. On the switch and other issues, to improve the test efficiency, save equipment costs, accurate verification accuracy and reliability of the effect

Inactive Publication Date: 2020-09-11
宁波新胜中压电器有限公司
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Problems solved by technology

However, the devices and testing methods mentioned in the above patents are only suitable for primary and secondary fusion non-inrush current intelligent power distribution switches, not for ordinary pole-mounted switches, and cannot simulate the tripping of primary and secondary fusion switches after encountering faults in actual work. , reclosing, and tripping again, and thus cannot accurately and reliably verify the switch protection action

Method used

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  • Primary and secondary fusion switch action characteristic tester and test method
  • Primary and secondary fusion switch action characteristic tester and test method
  • Primary and secondary fusion switch action characteristic tester and test method

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0030] The technical solutions adopted by the present invention to solve the above problems are: figure 1 It is the structural block diagram of the primary and secondary fusion switch action characteristic tester in the present invention, figure 2 It is a specific structural block diagram of the primary and secondary fusion switch action characteristic tester in the present invention. The tester includes a control module 1, a current generation module 2, a sensor module 3, a power input port 5, a current output port 7, and an external synchronization module 9. , Signal processing module 4, auxiliary power supply module 6, peripheral module 10 and communication module 11. The power supply is connected to the current generation module 2 through the power input port 5 to generate a fault simulation current of ...

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Abstract

The invention discloses a motion characteristic tester of a primary and secondary fused switch. The tester comprises a control module, a current generation module, a sensor module, a power input port,a current output port, an external synchronization module and a signal processing module; and a power supply is connected to the current generation module via the power input port to generate a faultsimulated current, the fault simulated current supplies power for the primary and secondary switch, the current generation module includes a current generator and is controlled by the control module,the sensor module includes a current sensor, the signal processing module comprises a signal sampling circuit, a signal conditioning circuit and an analog / digital conversion circuit, and the externalsynchronization module is electrically connected with the control module. The tester and test method have the advantages that the tester is suitable for the common primary and secondary switch and acommon switch tester, the whole course of a practical fault can be simulated via slow linear change and abrupt change of the fault simulated current, and the accuracy and reliability of a primary andsecondary switch protection motion can be verified accurately.

Description

Technical field [0001] The invention relates to a power distribution switch device, in particular to a test method of a primary and secondary fusion switch action characteristic tester. Background technique [0002] The construction of smart grids will be realized in three stages from 2009 to 2020: the first stage (2009-2010) is expected to invest 550 billion yuan, the second stage (2011-2015) is expected to invest 2 trillion yuan, and the third stage (2016-2020) The estimated investment is 1.7 trillion yuan. Equipment such as transformers and switches account for about 40% of the total investment in the power grid. It can be expected that the large-scale construction of smart grids will effectively drive the demand for power equipment including transformers and switches. The current transformation and distribution industry is developing in the direction of informatization, intelligence, networking and integration. The integration of primary and secondary equipment is not only t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/3275
Inventor 应肖磊吴英俊叶挺叶相国
Owner 宁波新胜中压电器有限公司
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