CN209310844U - A kind of switch cabinet state monitoring device - Google Patents
A kind of switch cabinet state monitoring device Download PDFInfo
- Publication number
- CN209310844U CN209310844U CN201821915301.7U CN201821915301U CN209310844U CN 209310844 U CN209310844 U CN 209310844U CN 201821915301 U CN201821915301 U CN 201821915301U CN 209310844 U CN209310844 U CN 209310844U
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- chip microcontroller
- voltage
- temperature sensor
- connect
- heating plate
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Abstract
The utility model provides a kind of switch cabinet state monitoring device, including single-chip microcontroller, current transformer, voltage transformer, temperature sensor, humidity sensor, frequency detection module, power module, display, combined aural and visual alarm, heating plate and cooling fan, the voltage and current signals of current transformer and voltage transformer acquisition switchgear, current transformer and voltage transformer are connected separately with absolute value amplifying circuit, and each absolute value amplifying circuit is connect with single-chip microcontroller；Frequency detection module is connect with current transformer, and frequency detection module connects single-chip microcontroller；Temperature sensor is sequentially connected second amplifying circuit, voltage follower, shift circuit, absolute value circuit and single-chip microcontroller on voltage；Humidity sensor is connect with single-chip microcontroller；Single-chip microcontroller is connect with power module, display, combined aural and visual alarm, heating plate and cooling fan.The utility model provides a kind of switch cabinet state monitoring device, can monitor on-line to switchgear, convenient for discovery failure and maintenance in time.
Description
Technical field
The utility model relates to a kind of switch cabinet state monitoring devices.
Background technique
Unattended substation management mode and comprehensive automation are promoted in electric system, so that the safe operation of switchgear becomes
It obtains extremely important.If switchgear breaks down at runtime, extremely serious consequence will be brought.Firstly, switchgear failure will
Protected route is directly endangered, various electrical equipments may be made to damage；Secondly, may cause large-area power-cuts, severe jamming
Normal production and orders of life.
Summary of the invention
The purpose of this utility model is to provide a kind of switch cabinet state monitoring devices, can be supervised online to switchgear
It surveys, to understand switchgear history run state and current operating conditions, convenient for discovery failure and maintenance in time.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of switch cabinet state monitoring device, including it is single-chip microcontroller, current transformer, voltage transformer, temperature sensor, wet
It is mutual to spend sensor, frequency detection module, power module, display, combined aural and visual alarm, heating plate and cooling fan, the electric current
The voltage and current signals of sensor and voltage transformer acquisition switchgear, the current transformer and voltage transformer are separately connected
There is absolute value amplifying circuit, each absolute value amplifying circuit is connect with the single-chip microcontroller；The frequency detection module and the electric current
Mutual inductor connection, the frequency detection module detect power frequency, and the frequency detection module connects the single-chip microcontroller；The temperature
Spend sensor acquisition switchgear in temperature signal, the temperature sensor be sequentially connected second amplifying circuit, voltage follower,
Shift circuit, absolute value circuit and single-chip microcontroller on voltage；Moisture signal in the humidity sensor acquisition switchgear, the humidity
Sensor is connect with the single-chip microcontroller；It the single-chip microcontroller and the power module, display, combined aural and visual alarm, heating plate and dissipates
Air-heater connection.
Further, the temperature sensor is infrared temperature sensor.
Further, the heating plate is pectination aluminum alloy heating plate.
After adopting the above technical scheme, the utility model has the advantages that
1, the utility model can monitor the voltage, electric current and power frequency of switchgear on-line, and in aobvious on display
Show, understand switchgear history run state and current operating conditions convenient for operation maintenance personnel, finds failure in time, does in advance
It is out of order and predicts and overhauled, accident is avoided to occur and reduce power off time；Temperature sensor acquires the temperature in switchgear,
When temperature is more than the first preset value, cooling fan is opened, and when temperature is more than the second preset value, single-chip microcontroller controls combined aural and visual alarm report
It is alert；Humidity sensor acquires the humidity in switchgear, and when humidity is more than humidity preset value, single-chip microcontroller controls heating plate starting.
2, temperature sensor is infrared temperature sensor, infrared temperature sensor according to heat radiation principle, do not need and by
It surveys object to be contacted, solves the problems, such as the heat exchange with the security isolation of high-tension apparatus and with thermometric target.In addition, infrared
The advantages of that there are also thermal inertias is small for temperature sensor, thermometric speed block.
3, heating plate is pectination aluminum alloy heating plate, heats fast, homogeneous heating, plays faster and better exsiccation.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is a kind of structural schematic diagram of switch cabinet state monitoring device of the utility model.
Marked the names of the parts are as follows in figure:
1- single-chip microcontroller；2- current transformer；3- voltage transformer；4- temperature sensor；5- humidity sensor；The inspection of 6- frequency
Survey module；7- power module；8- display；9- combined aural and visual alarm；10- heating plate；11- cooling fan.
Specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model provides a kind of switch cabinet state monitoring device, including single-chip microcontroller 1, current transformer
2, voltage transformer 3, temperature sensor 4, humidity sensor 5, frequency detection module 6, power module 7, display 8, acousto-optic report
Alert device 9, heating plate 10 and cooling fan 11.
Current transformer 2 and voltage transformer 3 acquire the voltage and current signals of switchgear, current transformer 2 and voltage
Mutual inductor 3 is connected separately with absolute value amplifying circuit, and each absolute value amplifying circuit is connect with single-chip microcontroller 1.
Frequency detection module 6 is connect with current transformer 2, and frequency detection module 6 detects power frequency, frequency detection module
6 connection single-chip microcontrollers 1.
Temperature sensor 4 acquires the temperature signal in switchgear, and temperature sensor 4 is sequentially connected second amplifying circuit, electricity
Shift circuit, absolute value circuit and single-chip microcontroller 1 on pressure follower, voltage.
Humidity sensor 5 acquires the moisture signal in switchgear, and humidity sensor 5 is connect with single-chip microcontroller 1.
Single-chip microcontroller 1 is connect with power module 7, display 8, combined aural and visual alarm 9, heating plate 10 and cooling fan 11.
The utility model can monitor the voltage, electric current and power frequency of switchgear on-line, and in showing on display,
Switchgear history run state and current operating conditions are understood convenient for operation maintenance personnel, are found failure in time, are made in advance
Failure predication is simultaneously overhauled, and accident is avoided to occur and reduce power off time；Temperature sensor acquires the temperature in switchgear, temperature
When degree is more than the first preset value, cooling fan is opened, and when temperature is more than the second preset value, single-chip microcontroller controls combined aural and visual alarm report
It is alert；Humidity sensor acquires the humidity in switchgear, and when humidity is more than humidity preset value, single-chip microcontroller controls heating plate starting.
In the present embodiment, temperature sensor 4 is infrared temperature sensor.Infrared temperature sensor foundation heat radiation principle,
It does not need to be contacted with testee, solve with the security isolation of high-tension apparatus and is asked with the heat exchange of thermometric target
Topic.In addition, infrared temperature sensor the advantages of that there are also thermal inertias is small, thermometric speed block.
In the present embodiment, heating plate 10 is pectination aluminum alloy heating plate.
In the present embodiment, 1 model dsPIC33F of single-chip microcontroller.
In the present embodiment, 3 model SPT204A of voltage transformer.
In the present embodiment, 2 model HCT204A of current transformer.
In addition to above preferred embodiment, for the utility model there are also other embodiments, those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, should belong to the utility model
Range defined in appended claims.
Claims (3)
1. a kind of switch cabinet state monitoring device, which is characterized in that including single-chip microcontroller, current transformer, voltage transformer, temperature
Sensor, humidity sensor, frequency detection module, power module, display, combined aural and visual alarm, heating plate and cooling fan,
The voltage and current signals of the current transformer and voltage transformer acquisition switchgear, the current transformer and voltage
Mutual inductor is connected separately with absolute value amplifying circuit, and each absolute value amplifying circuit is connect with the single-chip microcontroller；
The frequency detection module is connect with the current transformer, and the frequency detection module detects power frequency, the frequency
Rate detection module connects the single-chip microcontroller；
Temperature signal in temperature sensor acquisition switchgear, the temperature sensor be sequentially connected second amplifying circuit,
Shift circuit, absolute value circuit and single-chip microcontroller on voltage follower, voltage；
Moisture signal in the humidity sensor acquisition switchgear, the humidity sensor are connect with the single-chip microcontroller；
The single-chip microcontroller is connect with the power module, display, combined aural and visual alarm, heating plate and cooling fan.
2. a kind of switch cabinet state monitoring device according to claim 1, which is characterized in that the temperature sensor is red
Outer temperature sensor.
3. a kind of switch cabinet state monitoring device according to claim 1, which is characterized in that the heating plate is pectination aluminium
Alloy heating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915301.7U CN209310844U (en) | 2018-11-21 | 2018-11-21 | A kind of switch cabinet state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915301.7U CN209310844U (en) | 2018-11-21 | 2018-11-21 | A kind of switch cabinet state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209310844U true CN209310844U (en) | 2019-08-27 |
Family
ID=67673773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821915301.7U Expired - Fee Related CN209310844U (en) | 2018-11-21 | 2018-11-21 | A kind of switch cabinet state monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209310844U (en) |
-
2018
- 2018-11-21 CN CN201821915301.7U patent/CN209310844U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20201121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |