Relay protection device power supply module service life monitoring device
A relay protection device and power module technology, applied in the field of power generation, can solve the problems of unable to monitor the input/output voltage state of the power module, unintuitive data recording, damage, etc.
Pending Publication Date: 2021-04-20
大唐水电科学技术研究院有限公司
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Problems solved by technology
[0002] The power plug-in of the microcomputer relay protection device used in the power plant is recommended to be replaced after 6 years of use. Due to the long-term energized operation of the microcomputer relay protection power plug-in, the manufacturing process, selected materials, and operating environment of each protection manufacturer are different. The aging of the power plug-in is caused during operation. and damage, causing the whole set of microcomputer relay protection device to malfunction or refuse to operate, causing heavy losses to the power plant
[0003] At present, the input / output voltage of the power plug-in of the microcomputer relay protection device used in the power plant cannot be displayed on the panel of the protection device. The input / output voltage of the power module of the microcomputer relay protection device is measured manually, and the manual record and comparison cannot be real-time. Monitor the input / output voltage status of the module; because the positive and negative poles of the input / output terminals of the power module are very close, using a multimeter to measure is also likely to cause a short circuit of the positive and negative power supplies; the measurement results are not intuitive
It can be seen that the traditional measurement method requires a lot of labor time and can only measure the parameters of the power module regularly, the data recording is not intuitive, and the operability is poor
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[0039] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0040] ginseng figure 1 , figure 2 As shown, in this embodiment, a life monitoring device for a power supply module of a relay protection device includes a monitoring host, a wireless communication unit, and a background server. The monitoring host includes a data acquisition unit, an A / D conversion unit, and a data processing unit;
[0041] The data acquisition unit is used to acquire the power supply voltage from the power supply module of the microcomputer relay protection device. It can collect 16 channels of differential analog signals at the same time. The module adopts a high-performance 24-bit AD chip, and the acquisition and measurement accuracy is ±0.05%. Thr...
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The invention relates to a relay protection device power supply module service life monitoring device, which comprises a monitoring host, a wireless communication unit and a background server, wherein the monitoring host comprises a data acquisition unit, an A / D conversion unit and a data processing unit; the data acquisition unit is used for acquiring power supply voltage from a power supply module of the microcomputer relay protection device; the A / D conversion unit is used for converting the analog quantity acquired by the data acquisition unit into a binary digital signal and sending the binary digital signal to the data processing unit for processing; the wireless communication unit is used for sending the data processed by the data processing unit to the background server; and the background server is used for carrying out subentry processing on the received data, automatically comparing the data with reference data, generating a document report and an input / output voltage operation curve, and carrying out alarm prompt on abnormal data. According to the invention, the aging condition of the power supply module component can be mastered in time, abnormal data can be early warned, and operation monitoring personnel can be prompted to pay attention.
Description
technical field [0001] The invention belongs to the technical field of power generation, and in particular relates to a life monitoring device for a power supply module of a relay protection device. Background technique [0002] The power plug-in of the microcomputer relay protection device used in the power plant is recommended to be replaced after 6 years of use. Due to the long-term energized operation of the microcomputer relay protection power plug-in, the manufacturing process, selected materials, and operating environment of each protection manufacturer are different. The aging of the power plug-in is caused during operation. and damage, causing the whole set of microcomputer relay protection device to malfunction or refuse to operate, causing heavy losses to the power plant. [0003] At present, the input / output voltage of the power plug-in of the microcomputer relay protection device used in the power plant cannot be displayed on the panel of the protection device. ...
Claims
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Inventor 石怀强
Owner 大唐水电科学技术研究院有限公司