Intelligent vacuum contactor synchronism debugging instrument and testing method

A vacuum contactor, synchronous technology, applied in circuit breaker testing, instruments, control/regulating systems, etc., can solve the problems of inability to achieve, three vacuum tubes do not have the same measurement reference, large errors, etc., to achieve fast and accurate testing , The effect of reliable and safe equipment quality and stable performance

Pending Publication Date: 2020-05-15
SHANDONG DONGSHAN XINYI COAL MINE CO LTD
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  • Application Information

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Problems solved by technology

In the past, vernier calipers were used to measure the opening distance. The three vacuum tubes did not have the same

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  • Intelligent vacuum contactor synchronism debugging instrument and testing method
  • Intelligent vacuum contactor synchronism debugging instrument and testing method
  • Intelligent vacuum contactor synchronism debugging instrument and testing method

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[0044] Those of ordinary skill in the art may realize that the units and algorithm steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the hardware and software Interchangeability. In the above description, the composition and steps of each example have been generally described in accordance with the function. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

[0045] The block diagrams shown in the drawings are merely functional entities, and do not necessarily correspond to physically independent entities. That is, these func...

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Abstract

The invention provides an intelligent vacuum contactor synchronism debugging instrument and a testing method. A PLC calculation unit is connected with a vacuum contactor through a power unit and a variable speed propulsion unit; the PLC calculation unit is further connected with the vacuum contactor to obtain the on-off state of the vacuum contactor and obtain the on-time point when the vacuum contactor is switched on and the off-time point when the vacuum contactor is switched off; the PLC calculation unit sends a control action instruction to the power unit so that the power unit drives thevacuum contactor to perform on-off action through the variable speed propelling unit, and the PLC calculation unit records the time point when the control action instruction is sent; the PLC calculation unit tests the action synchronism of the vacuum contactor according to the on-off time point of the vacuum contactor and the time point of sending the control action instruction; the debugging instrument uses a PLC timing operation function, and scientific and accurate data can be obtained. Power propulsion is applied, and the test result is more accurate.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to an intelligent vacuum contactor synchronization debugging instrument and a testing method. Background technique [0002] In coal mining, the synchronization of the magnetic starter vacuum contactor in the electric drive system is very important. When repairing the motor in the drag system, it was found that most of the motor burnout was caused by the lack of phase of the magnetic starter, and the lack of phase was caused by the damage of the vacuum tube of its own vacuum contactor, and the damage of the vacuum tube was due to its suction. Synchronization inconsistency caused. When we debug the synchronization of vacuum tubes, we mainly rely on experience and measuring the opening distance of vacuum tubes. The error generated in this way is too large. If the debugging is not good, the vacuum tubes will produce arcs, and the vacuum tubes will be damaged in a short time, causin...

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Application Information

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IPC IPC(8): G05B19/05G01R31/327
CPCG01R31/327G05B19/054G05B2219/1108
Inventor 吕凤新吴晓伟沈振朋武壮壮孔凡站董强
Owner SHANDONG DONGSHAN XINYI COAL MINE CO LTD
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