CN202188919U - On-line monitoring system of high-voltage handcart switch cabinet - Google Patents
On-line monitoring system of high-voltage handcart switch cabinet Download PDFInfo
- Publication number
- CN202188919U CN202188919U CN2011202826446U CN201120282644U CN202188919U CN 202188919 U CN202188919 U CN 202188919U CN 2011202826446 U CN2011202826446 U CN 2011202826446U CN 201120282644 U CN201120282644 U CN 201120282644U CN 202188919 U CN202188919 U CN 202188919U
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- Prior art keywords
- temperature
- switch cabinet
- chip microcomputer
- acquisition terminal
- monitoring system
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 230000003068 static effect Effects 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
An on-line monitoring system of a high-voltage handcart switch cabinet consists of a temperature acquisition terminal, a display instrument terminal and corresponding power supplies of the temperature acquisition terminal and the display instrument terminal. The temperature acquisition terminal is substantially composed of temperature sensors, a single chip microcomputer and a transmit-receive unit, wherein six temperature sensors are evenly distributed on a moving contact or a fixed contact of the high-voltage handcart switch cabinet and one ambient temperature sensor is arranged in a breaker chamber of the high-voltage handcart switch cabinet. The display instrument terminal is substantially composed of a transmit-receive unit, a display instrument terminal single chip microcomputer and a displayer. The on-line monitoring system of the high-voltage handcart switch cabinet adopts an isolation transmission mode between a sensor hot end and a displayer cold end and has the advantages of being accurate in temperature measurement and resistant to interference.
Description
Technical field
The utility model relates to the switch cubicle temperature monitoring system, particularly the automatic temperature monitoring device of high pressure wheelbarrow switch cabinet.
Background technology
High pressure wheelbarrow switch cabinet is a very important electrical equipment in the electric system.Along with the development of society, to the quality of power supply require increasingly highly, correspondingly the reliability of high-tension switch cabinet is also had higher requirement.And the over-heat inside phenomenon of switch cubicle has become the FAQs of switch cubicle in using, because the leakproofness of switch cabinet, in the heavier area of some loads, has the temperature rise of the switch cubicle problem that exceeds standard.The temperature rise of switch cubicle exceeds standard, and directly influences the safe and stable operation of equipment, and problems of excessive heat is a constantly process of development, if do not control, degree of superheat is aggravation constantly, and to the performance of insulating part and produce very big influence equipment life.Be necessary to develop wheelbarrow switch cabinet temperature online monitoring system for this reason, realize the on-line monitoring of wheelbarrow switch cabinet contact temperature.
The utility model content
The purpose of the utility model provide a kind of thermometric accurately, adopt the temperature online monitoring system of the high pressure wheelbarrow switch cabinet of isolation transmission mode between sensor hot end and the display cold end.
The purpose of the utility model is achieved in that a kind of high pressure wheelbarrow switch cabinet temperature online monitoring system, is made up of temperature acquisition terminal and Displaying Meter end and the two corresponding work power supply, and said temperature acquisition terminal is formed as follows:
Temperature sensor: form by six temperature sensors and an environment temperature sensor; Six temperature sensors are uniformly distributed with on the moving contact or static contact that is arranged on high pressure wheelbarrow switch cabinet, and an environment temperature sensor is arranged in the breaker chamber of high pressure wheelbarrow switch cabinet;
Single-chip microcomputer: the signal output part of above-mentioned seven temperature sensors is connected with single-chip microcomputer;
Transmit-Receive Unit: the signal output part of single-chip microcomputer is connected with the signal input part of Transmit-Receive Unit;
Said Displaying Meter end is formed as follows:
Receiving element: with the Transmit-Receive Unit wireless connections of said temperature acquisition terminal;
Displaying Meter end single-chip microcomputer: its input end is connected with the output terminal of receiving element;
Display: be connected with Displaying Meter end single-chip microcomputer.
The said temperature sensor is the digital temperature sensor of American Dallas Semiconductor company; Said Transmit-Receive Unit and receiving element all adopt the radio transmitting and receiving chip of Freescale company to form; Said display adopts LCD.
The working power of said temperature acquisition terminal is: as the current transformer of introducing alternating current output 3.3V direct current behind cascade rectifier and the voltage stabilizer in order.
The utlity model has following characteristics and advantage:
1) temperature survey is accurate
Adopt the high-precision digital temperature sensor of import.Temperature sensor both can also can be installed on static contact in installation on the moving contact.Convenient like this and present stage variation isolating switch kind matches, thereby has guaranteed the work that isolating switch is more stable.Temperature probe is apart from very near of point for measuring temperature, induction contact temperature variation rapidly and accurately, and it is accurate to measure temperature.
2) insulation isolation
The temperature sensor acquired signal transfers to display through wireless mode.Sensor and monitoring display instrument solve the isolation transmission between sensor hot end and the instrument cold end through the wireless data transmission mode.
3) need not powered battery.
The data processing of Sensor section and radiating circuit adopt coil-induced power supply; The problem of having avoided the easy dead electricity of battery and can't long-term work.
4) adopt international advanced Radio Transmission Technology.Solved the problem that interferes with each other of wireless signal.
Description of drawings
Fig. 1, Fig. 2 are respectively the scheme of installation of temperature acquisition terminal on moving contact and static contact.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is a temperature acquisition terminal hardware structured flowchart.
Fig. 5 is the hardware block diagram of Displaying Meter end (being monitor terminal).
Embodiment
Fig. 4, Fig. 5 illustrate, and this high pressure wheelbarrow switch cabinet temperature online monitoring system is made up of temperature acquisition terminal and Displaying Meter end and the two corresponding work power supply, and said temperature acquisition terminal is formed as follows:
Temperature sensor: form by six temperature sensors and an environment temperature sensor; Six temperature sensors are uniformly distributed with on the moving contact or static contact that is arranged on high pressure wheelbarrow switch cabinet, and an environment temperature sensor is arranged in the breaker chamber of high pressure wheelbarrow switch cabinet;
Single-chip microcomputer: the signal output part of above-mentioned seven temperature sensors is connected with single-chip microcomputer;
Transmit-Receive Unit: the signal output part of single-chip microcomputer is connected with the signal input part of Transmit-Receive Unit;
Said Displaying Meter end is formed as follows:
Receiving element: with the Transmit-Receive Unit wireless connections of said temperature acquisition terminal;
Displaying Meter end single-chip microcomputer: its input end is connected with the output terminal of receiving element;
Display: be connected with Displaying Meter end single-chip microcomputer.
Fig. 1 illustrates, and is fixed with plum blossom grappling fixture 5 on the moving contact 1, and insulating sleeve 2 is enclosed within on the moving contact, and current mutual inductor coil 6 is on moving contact, and single-chip microcomputer and Transmit-Receive Unit 3 are installed on the moving contact, and (6) temperature sensor 4 is fixed on the moving contact.
Fig. 2, Fig. 3 illustrate, and static contact 7 is positioned at static contact box 8, and temperature acquisition terminal 9 is arranged on the static contact.For avoiding bringing influence to high voltage equipment insulation, adopt Radio Transmission Technology as data transmission medium, the CT inductive power supply is adopted in the power supply at temperature acquisition terminal.The working power at temperature acquisition terminal is: as the current transformer of introducing alternating current output 3.3V direct current behind cascade rectifier and the voltage stabilizer in order.For making temperature survey more accurate, temperature sensor adopts the high-accuracy digital temperature sensor of import.Total system hardware is made up of temperature acquisition terminal, reception Displaying Meter etc.
Every wheelbarrow switch cabinet disposes 6 sleeving temperature acquisition terminals, to 6 contact temperature measurements of switch cubicle; Every switch cubicle is installed a cover and is received Displaying Meter.The temperature acquisition terminal sends the temperature data that collects to the Displaying Meter end through wireless mode, and the Displaying Meter termination is received data after treatment, shows in this locality and reaches background manage software through the RS-485 bus; Background manage software is with the mode query facility temperature of poll; Background manage software supports that web monitors in real time; And received temperature data analyzed, the temperature that surpasses alarming line is produced sound and SMS alarm (SMS alarm needs the MODEM hardware supports).
Embodiment: temperature sensor is the digital temperature sensor of American Dallas Semiconductor company; Transmit-Receive Unit and receiving element all adopt the radio transmitting and receiving chip of Freescale company to form; Display adopts LCD.
Claims (3)
1. high pressure wheelbarrow switch cabinet temperature online monitoring system is made up of temperature acquisition terminal and Displaying Meter end and the two corresponding work power supply, it is characterized in that said temperature acquisition terminal is formed as follows:
Temperature sensor: form by six temperature sensors and an environment temperature sensor; Six temperature sensors are uniformly distributed with on the moving contact or static contact that is arranged on high pressure wheelbarrow switch cabinet, and an environment temperature sensor is arranged in the breaker chamber of high pressure wheelbarrow switch cabinet;
Single-chip microcomputer: the signal output part of above-mentioned seven temperature sensors is connected with single-chip microcomputer;
Transmit-Receive Unit: the signal output part of single-chip microcomputer is connected with the signal input part of Transmit-Receive Unit;
Said Displaying Meter end is formed as follows:
Receiving element: with the Transmit-Receive Unit wireless connections of said temperature acquisition terminal;
Displaying Meter end single-chip microcomputer: its input end is connected with the output terminal of receiving element;
Display: be connected with Displaying Meter end single-chip microcomputer.
2. high pressure wheelbarrow switch cabinet temperature online monitoring system according to claim 1 is characterized in that said temperature sensor is the digital temperature sensor of American Dallas Semiconductor company; Said Transmit-Receive Unit and receiving element all adopt the radio transmitting and receiving chip of Freescale company to form; Said display adopts LCD.
3. high pressure wheelbarrow switch cabinet temperature online monitoring system according to claim 2 is characterized in that the working power at said temperature acquisition terminal is: as the current transformer of introducing alternating current output 3.3V direct current behind cascade rectifier and the voltage stabilizer in order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202826446U CN202188919U (en) | 2011-08-05 | 2011-08-05 | On-line monitoring system of high-voltage handcart switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202826446U CN202188919U (en) | 2011-08-05 | 2011-08-05 | On-line monitoring system of high-voltage handcart switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188919U true CN202188919U (en) | 2012-04-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202826446U Expired - Lifetime CN202188919U (en) | 2011-08-05 | 2011-08-05 | On-line monitoring system of high-voltage handcart switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331309A (en) * | 2011-08-05 | 2012-01-25 | 四川省电力公司自贡电业局 | On-line monitoring system for high voltage handcart switch cabinet |
| CN104390711A (en) * | 2014-11-18 | 2015-03-04 | 湖南工程学院 | Contact thermometer of high-voltage switch cabinet |
-
2011
- 2011-08-05 CN CN2011202826446U patent/CN202188919U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331309A (en) * | 2011-08-05 | 2012-01-25 | 四川省电力公司自贡电业局 | On-line monitoring system for high voltage handcart switch cabinet |
| CN104390711A (en) * | 2014-11-18 | 2015-03-04 | 湖南工程学院 | Contact thermometer of high-voltage switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20131225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131225 Address after: 643000 Zigong city of Sichuan Province, Ziliujing District tanmulin Street No. 115 Patentee after: Zigong Electric Bureau, Sichuan Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 643000 Zigong city of Sichuan Province, Ziliujing District tanmulin Street No. 115 Patentee before: Zigong Electric Bureau, Sichuan Electric Power Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |