CN206038835U - Electric power system partial discharge and temperature monitoring device - Google Patents
Electric power system partial discharge and temperature monitoring device Download PDFInfo
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- CN206038835U CN206038835U CN201620684601.3U CN201620684601U CN206038835U CN 206038835 U CN206038835 U CN 206038835U CN 201620684601 U CN201620684601 U CN 201620684601U CN 206038835 U CN206038835 U CN 206038835U
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- partial discharge
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Abstract
The utility model discloses an electric power system partial discharge and temperature monitoring device, alarm device including partial discharge monitoring system, temperature monitoring system and connection partial discharge monitoring system with the temperature monitoring system, the utility model discloses temperature monitoring can be carried out simultaneously and the monitoring is discharged, temperature monitoring's monitoring range is big and with low costs, the electricity generation signal in the monitoring of discharging advanced the preamble signal circuit to be handled the back signal and obtains increase amplitude, make the device have higher SNR, the power frequency voltage acquisition circuit of design can result from the square signal that on -the -spot power frequency voltage corresponds, the outside starting signal of data acquisition unit can be regarded as to this signal, the device can gather the partial discharge signal, carry out the flourishing processing of filtering, produce when partial discharge's amplitude exceedes the default and report to the police.
Description
Technical field
This utility model is related to electric power system monitoring device technical field, more particularly to a kind of power system shelf depreciation and
Device for detecting temperature.
Background technology
Developing traditional power system rapidly and cannot meet growing needs with power system, due to electricity
The continuous improvement of pressure grade, the continuous enhancing of security context protective awareness, people have higher and higher requirement to power system,
The requirement with primary prevention is proposed during high pressure power transmission and distribution, but existing monitoring device is relatively costly, and can not
Meet the requirement of domestic correspondent, therefore be badly in need of a kind of monitoring device to solve existing issue.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electric power that can carry out temperature monitoring and electric discharge monitoring
System shelf depreciation and device for detecting temperature.
In order to solve above-mentioned technical problem, the technical solution of the utility model is：A kind of power system shelf depreciation and temperature
Degree monitoring device, including,
The partial discharge monitoring system, including antenna sensor, advance signal process circuit, power-frequency voltage Acquisition Circuit
And industrial computer, the antenna sensor is arranged in power system, and the antenna sensor is connected to the advance signal and processes
The input of circuit, the outfan of the advance signal process circuit are connected on industrial computer, the power-frequency voltage Acquisition Circuit
Connect the industrial computer；
The temperature monitoring system, including control module, thermocouple and signal adjustment circuit, the thermocouple is arranged on electricity
In Force system, the thermocouple is connected with the signal adjustment circuit, and the signal adjustment circuit is connected with the control module.
Further, the advance signal process circuit includes the wave filter being connected with the antenna sensor and connection filter
The amplifier of ripple device, the amplifier connect the industrial computer.
Further, the industrial computer includes data acquisition unit, data processing unit and data storage cell, described
Data acquisition unit is connected with the amplifier in the advance signal process circuit, and the data processing unit is connected on the number
According between collecting unit and the data storage cell.
Further, the power-frequency voltage Acquisition Circuit is connected with the data acquisition unit of the industrial computer.
Further, the signal adjustment circuit is using with cold junction compensation, voltage amplification, thermocouple fault alarm
Adjustment circuit, is also associated with the potentiometer for finely tuning cold junction compensation voltage on the signal adjustment circuit.
Further, the control module is connected with the industrial computer for receiving its measurement temperature value signal, the industrial computer
Data acquisition unit connects the control module.
Further, also including the alarm reported to the police.
Using having the beneficial effect that above-mentioned technical proposal this utility model is obtained：Temperature monitoring and electric discharge are carried out simultaneously can
Monitoring, the monitoring range of temperature monitoring is big and low cost, and the electrical signal in electric discharge monitoring entered advance signal circuit to be carried out
After process, signal obtains amplification so that the device has higher signal to noise ratio, and the power-frequency voltage Acquisition Circuit of design can be produced
In the corresponding square-wave signal of live power-frequency voltage, the signal can be used as the outside starting signal of data acquisition unit, the device
Local discharge signal can be acquired, be filtered flourishing process, be produced when the amplitude of shelf depreciation exceedes preset value
Report to the police.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Structural representations of the Fig. 1 for this utility model partial discharge monitoring system；
Structural representations of the Fig. 2 for this utility model temperature monitoring system；
Structural representations of the Fig. 3 for this utility model wave filter；
Structural representations of the Fig. 4 for this utility model amplifier；
Fundamental diagrams of the Fig. 5 for this utility model power-frequency voltage Acquisition Circuit.
In figure：1- antenna sensors, 2- advance signal process circuits, 2.1- wave filter, 2.2- amplifiers, 3- industrial computers,
3.1- data acquisition units, 3.2- data processing units, 3.3- data storage cells, 4- power-frequency voltage Acquisition Circuit.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described further.Here it should be noted that
For the explanation of these embodiments is used to help understand this utility model, but do not constitute to restriction of the present utility model.This
Outward, as long as technical characteristic involved in this utility model disclosed below each embodiment does not constitute conflict each other
Can just be mutually combined.
Further illustrate with reference to 1,2,3,4,5 pairs of this utility model of accompanying drawing, make person of ordinary skill in the field more preferable
Enforcement this utility model, this utility model power system shelf depreciation and device for detecting temperature, including partial discharge monitoring system
The alarm device of system, temperature monitoring system and connection partial discharge monitoring system and temperature monitoring system；
This utility model partial discharge monitoring system includes antenna sensor 1, advance signal process circuit 2, power-frequency voltage
Acquisition Circuit 4 and industrial computer 3, antenna sensor 1 are arranged in power system, and antenna sensor 1 is connected to advance signal process
The input of circuit 2, the outfan of advance signal process circuit 2 are connected on industrial computer 3, and power-frequency voltage Acquisition Circuit 4 connects
Industrial computer 3；Advance signal process circuit 2 is included the wave filter 2.1 being connected with antenna sensor 1 and connects putting for wave filter 2.1
Big device 2.2, the connection industrial computer 3 of amplifier 2.2；Wave filter 2.1 has 7 rank low pass elliptic function filters and high pass filter cascade
Form；Preferably reduce noise and more preferable efficiency response to reach, amplifier 2.2 selects field-effect transistor；Using putting
The advance signal process circuit 2 of big device 2.2 and the composition of wave filter 2.1 can carry out pre- place to the signal that antenna sensor 1 is received
Reason, increased signal to noise ratio and improves the monitoring sensitivity of shelf depreciation；Industrial computer 3 includes data acquisition unit 3.1, data processing
Unit 3.2 and data storage cell 3.3, data acquisition unit 3.1 are connected with the amplifier 2.2 in advance signal process circuit 2,
Data processing unit 3.2 is connected between data acquisition unit 3.1 and data storage cell 3.3；Power-frequency voltage Acquisition Circuit 4 with
The data acquisition unit 3.1 of industrial computer 3 connects；After antenna sensor 1 receives local discharge signal, at advance signal
The filtering of reason circuit 2 and processing and amplifying, into data acquisition unit 3.1, data acquisition unit 3.1 carries out modulus and turns to signal
Change, digital signal is transported to into next unit；Power frequency Acquisition Circuit includes mains transformer, and power-frequency voltage signal first passes through electricity
Source transformator is converted into AC sine wave signal, is then changing into voltage amplifier circuit after voltage follower circuit voltage stabilizing
For AC sine wave signal, then passing through Zero-cross comparator circuit output square-wave signal, finally by voltage follower circuit voltage stabilizing
After be input in data acquisition unit 3.1.
This utility model temperature monitoring system, including control module, thermocouple and signal adjustment circuit, thermocouple is arranged on
In power system, thermocouple is connected with signal adjustment circuit, and signal adjustment circuit is connected with control module；Signal adjustment circuit is adopted
With with cold junction compensation, voltage amplification, thermocouple fault alarm adjustment circuit, be also associated with signal adjustment circuit for
The potentiometer of fine setting cold junction compensation voltage；Control module is connected with the industrial computer 3 for receiving its measurement temperature value signal, industrial computer 3
3.1 link control module of data acquisition unit.This utility model signal adjustment circuit select for AD594C circuits, control mould
Block adopts ADR-120 modules.
This utility model can carry out temperature monitoring and electric discharge monitoring simultaneously, and the monitoring range of temperature monitoring is big and cost
Low, the electrical signal in electric discharge monitoring entered signal after advance signal circuit is processed and obtained amplification so that the device has
Higher signal to noise ratio, the power-frequency voltage Acquisition Circuit 4 of design can result from the corresponding square-wave signal of live power-frequency voltage, the letter
Number local discharge signal can be acquired as the outside starting signal of data acquisition unit 3.1, the device, be carried out
Filtering is flourishing to be processed, and produces warning when the amplitude of shelf depreciation exceedes preset value.
Embodiment of the present utility model is explained in detail above in association with accompanying drawing, but this utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is in the case of without departing from this utility model principle and spirit, right
These embodiments carry out various changes, modification, replacement and modification, still fall within protection domain of the present utility model.
Claims (4)
1. a kind of power system shelf depreciation and device for detecting temperature, it is characterised in that：Including,
The partial discharge monitoring system, including antenna sensor, advance signal process circuit, power-frequency voltage Acquisition Circuit and work
Control machine, the antenna sensor are arranged in power system, and the antenna sensor is connected to the advance signal process circuit
Input, the outfan of the advance signal process circuit is connected on industrial computer, the power-frequency voltage Acquisition Circuit connection
The industrial computer；
The temperature monitoring system, including control module, thermocouple and signal adjustment circuit, the thermocouple is arranged on power train
In system, the thermocouple is connected with the signal adjustment circuit, and the signal adjustment circuit is connected with the control module；
The advance signal process circuit includes the amplifier of the wave filter being connected with the antenna sensor and connection wave filter,
The amplifier connects the industrial computer；
The industrial computer includes data acquisition unit, data processing unit and data storage cell, the data acquisition unit with
Amplifier connection in the advance signal process circuit, the data processing unit are connected on the data acquisition unit and institute
State between data storage cell；
The control module is connected with the industrial computer for receiving its measurement temperature value signal, and the data acquisition unit of the industrial computer connects
Connect the control module.
2. power system shelf depreciation and device for detecting temperature according to claim 1, it is characterised in that：The power-frequency voltage
Acquisition Circuit is connected with the data acquisition unit of the industrial computer.
3. power system shelf depreciation and device for detecting temperature according to claim 1, it is characterised in that：The signal adjustment
Circuit is gone back on the signal adjustment circuit using with cold junction compensation, voltage amplification, the adjustment circuit of thermocouple fault alarm
It is connected with the potentiometer for finely tuning cold junction compensation voltage.
4. power system shelf depreciation and device for detecting temperature according to claim 1, it is characterised in that：Also include being reported
Alert alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684601.3U CN206038835U (en) | 2016-07-01 | 2016-07-01 | Electric power system partial discharge and temperature monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684601.3U CN206038835U (en) | 2016-07-01 | 2016-07-01 | Electric power system partial discharge and temperature monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038835U true CN206038835U (en) | 2017-03-22 |
Family
ID=58310034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620684601.3U Active CN206038835U (en) | 2016-07-01 | 2016-07-01 | Electric power system partial discharge and temperature monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038835U (en) |
-
2016
- 2016-07-01 CN CN201620684601.3U patent/CN206038835U/en active Active
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| GR01 | Patent grant |