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Real-time monitoring system for low-voltage power distribution cabinet

A real-time monitoring system and low-voltage power distribution technology, applied in the field of power systems, can solve problems such as personal injury, excessive contact resistance, and burnout of switch distribution cabinets, to achieve timely and convenient temperature measurement, reduce interval time, and save manpower and material resources Effect

Inactive Publication Date: 2017-09-15
HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the power system, the safety and reliability of power equipment is an important part of ultra-large-scale power transmission and distribution and grid security. Among them, the power switch distribution cabinet is an important equipment widely used in the power transmission and distribution system, and its safety and reliability are subject to more and more There are more and more concerns that during the long-term operation of the equipment, the joint parts of the switchgear, the conductive part of the disconnector and other parts will generate heat due to excessive contact resistance due to poor manufacturing, transportation, installation and aging. If the temperature of these heating parts cannot Accurate detection, if it is not repaired in time, it will lead to the burning of the switch distribution cabinet
[0003] The current monitoring of the internal temperature rise of the power distribution cabinet is still at the stage of manual inspection. The current main method is to manually open the power distribution cabinet at regular intervals, use infrared temperature detectors to measure the temperature of the main terminals of the power distribution cabinet and For the record, the main problem of this method is that the temperature measurement of the power distribution cabinet needs to be opened manually, which may cause personal injury, is unsafe, and the operation is more complicated

Method used

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  • Real-time monitoring system for low-voltage power distribution cabinet
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Embodiment 1

[0028] Such as figure 1 As shown, a real-time monitoring system for a low-voltage power distribution cabinet in this embodiment includes: an acquisition module 100, an optical-to-digital converter 200, a microprocessor 300, a power module 400, a communication module 500, a controller 600, and a background master station 700 .

[0029] The acquisition module 100 includes: a temperature acquisition unit 110, used to collect temperature information in the low-voltage power distribution cabinet, and convert the temperature information into optical information; a voltage transformer 120, used to measure the voltage, power and voltage of the line in the low-voltage power distribution cabinet. Electric energy; the current transformer 130 is used to measure the current information in the low-voltage power distribution cabinet.

[0030] The optical-to-digital converter 200 is used to convert the optical information converted by the temperature acquisition unit into a digital signal, a...

Embodiment 2

[0037] Such as figure 2 As shown, a real-time monitoring system for a low-voltage power distribution cabinet in this embodiment includes: an acquisition module 100, an optical-to-digital converter 200, a microprocessor 300, a power module 400, a communication module 500, a controller 600, and a background master station 700 , an external device 800 , a display module 900 , and an alarm unit 1000 .

[0038] The acquisition module 100 includes: a temperature acquisition unit 110, used to collect temperature information in the low-voltage power distribution cabinet, and convert the temperature information into optical information; a voltage transformer 120, used to measure the voltage, power and voltage of the line in the low-voltage power distribution cabinet. Electric energy; the current transformer 130 is used to measure the current information in the low-voltage power distribution cabinet. Wherein, the temperature acquisition unit 110 includes a plurality of temperature sen...

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Abstract

The invention discloses a real-time monitoring system for a low-voltage power distribution cabinet. The real-time monitoring system comprises an acquisition module, an optical-digital converter, a microprocessor, a power supply module, a communication module and a controller, wherein the acquisition module is used for acquiring temperature information, voltage, power, electric energy and current information in the low-voltage power distribution cabinet; the optical-digital converter is used for converting optical information into a digital signal; the microprocessor generates temperature information and alarm information of the low-voltage power distribution cabinet according to the digital signal; the power supply module is used for converting an electricity-taking method; the communication module is used for establishing communication with external equipment by means of a wireless transceiving device; and the controller is used for transmitting the obtained current operating situations of the low-voltage power distribution cabinet to a background main station. The monitoring system can monitor the temperature inside the low-voltage power distribution cabinet in real time, sends out prompts and alarms timely when the temperature is too high or abnormal failure of power operation occurs, and saves the cost of manual detection and maintenance.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a real-time monitoring system for a low-voltage power distribution cabinet. Background technique [0002] In the power system, the safety and reliability of power equipment is an important part of ultra-large-scale power transmission and distribution and grid security. Among them, the power switch distribution cabinet is an important equipment widely used in the power transmission and distribution system, and its safety and reliability are subject to more and more There are more and more concerns that during the long-term operation of the equipment, the joint parts of the switchgear, the conductive part of the disconnector and other parts will generate heat due to excessive contact resistance due to poor manufacturing, transportation, installation and aging. If the temperature of these heating parts cannot Accurate detection, failure to timely maintenance, will lead to burning switch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/00001H02J13/0075Y02B90/20Y04S40/126
Inventor 孔令翠
Owner HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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