CN105974179A - Secondary equipment for monitoring partial discharge and temperature monitoring device - Google Patents
Secondary equipment for monitoring partial discharge and temperature monitoring device Download PDFInfo
- Publication number
- CN105974179A CN105974179A CN201610510801.1A CN201610510801A CN105974179A CN 105974179 A CN105974179 A CN 105974179A CN 201610510801 A CN201610510801 A CN 201610510801A CN 105974179 A CN105974179 A CN 105974179A
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- circuit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses secondary equipment for monitoring a partial discharge and temperature monitoring device. The secondary equipment comprises an electric energy sampling module, a control module and a storage module, wherein the electric energy sampling module is connected to the control module, and the storage module is connected with the control module; the electric energy sampling module comprises a voltage sampling circuit, a filter circuit and a conversion circuit; the voltage sampling circuit comprises a voltage sensor, which is connected to the filter circuit; and the filter circuit is connected with the conversion circuit. The secondary monitoring equipment arranged on the partial discharge and temperature monitoring device can monitor the voltage supply condition of the partial discharge and temperature monitoring device in real time, timely discover whether the voltage is abnormal, timely adjust the voltage and protect the monitoring device, so that the power system does not fail due to failure of the partial discharge and temperature monitoring device.
Description
Technical field
The present invention relates to the secondary monitoring device of electric power system monitoring device, particularly to one to shelf depreciation
And the secondary device of device for detecting temperature monitoring.
Background technology
In power system, power system can be caused bigger injury by shelf depreciation and temperature.In prior art
Occurring in that the monitoring device that power system carries out temperature monitoring and shelf depreciation, this equipment is to power system
Safety play preferable protective effect, decrease the insulating part shelf depreciation in power system to power equipment
The infringement brought, but provide the voltage of energy to occur extremely for this monitoring device and will cause this monitoring device
Damage so that it is cisco unity malfunction, thus cause the safety in utilization of electric power system.
Summary of the invention
The technical problem to be solved in the present invention is to provide one can monitor shelf depreciation and device for detecting temperature electricity
The secondary device of energy quality,
In order to solve above-mentioned technical problem, the technical scheme is that shelf depreciation and temperature are supervised by one
Survey the secondary device of device monitoring, including electric energy sampling module, control module and memory module, described electric energy
Sampling module is connected to described control module and connects, and described memory module is connected with described control module；Described
Electric energy sampling module includes voltage sampling circuit, filter circuit and change-over circuit, described voltage sampling circuit bag
Including voltage sensor, described voltage sensor is connected to described filter circuit, and described filter circuit connects described
Change-over circuit.
Further, described filter circuit is connected between described current sampling circuit and described change-over circuit,
It includes frequency overlapped-resistable filter, and the negative pole of wherein said frequency overlapped-resistable filter connects described voltage sensor, its
Outfan connects described change-over circuit.
Further, described change-over circuit includes voltage comparator, and the outfan of described voltage rate of exchange device is even
Connecing control module, the positive pole of described voltage comparator is connected with described filter circuit, described voltage comparator with
Resistance R9 and resistance R10, described resistance R9 and the indirection point of resistance R10 it is in series with between described filter circuit
It is connected to the negative pole of described voltage comparator, line is in series with capacitor C3 and resistance R8, described voltage ratio
The negative pole of relatively device passes through resistance R6 ground connection, described capacitor C3 and resistance R8 contact and connects the described voltage ratio of band
The outfan of relatively device.
Further, described change-over circuit is additionally provided with phase-locked loop circuit, described locking loop defeated
Entering end and be connected to the input of described change-over circuit, the outfan of described change-over circuit connects described change-over circuit
Voltage comparator.
Further, described control module includes microprocessor.
Further, described control module is also associated with display.
What the employing technique scheme present invention obtained has the beneficial effect that at shelf depreciation and device for detecting temperature
The secondary monitoring device of upper setting can monitor the voltage supply feelings of shelf depreciation and device for detecting temperature in real time
Condition, it is possible to find whether voltage goes wrong in time, it is possible to adjust voltage in time, protect this monitoring device,
Make the power system will not be because shelf depreciation and device for detecting temperature are broken down and cause electric power system fault
Generation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of structural representation to the secondary device that shelf depreciation and device for detecting temperature are monitored of the present invention
Figure；
Fig. 2 is the structural representation of electric energy sampling module of the present invention.
In figure: 1-control module, 2-change-over circuit, 3-filter circuit, 4-voltage sampling circuit, 5-store
Module, 6-display.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that
The explanation of these embodiments is adapted to assist in and understands the present invention, but be not intended that limitation of the invention.
As long as additionally, technical characteristic involved in each embodiment of invention described below is the most not
The conflict of composition just can be mutually combined.
Further describe in conjunction with 1,2 pairs of embodiment of the present invention of accompanying drawing, make person of ordinary skill in the field more
The good enforcement present invention, a kind of secondary device that shelf depreciation and device for detecting temperature are monitored of the present invention, bag
Including electric energy sampling module, control module 1 and memory module 5, electric energy sampling module is connected to control module 1 even
Connecing, memory module 5 is connected with control module 1, for storing the information that electric energy sampling module gathers, controls
Iatron 6 it is also associated with, for showing required information in module 1；Electric energy sampling module includes electricity
Pressure sample circuit 4, filter circuit 3 and change-over circuit 2, voltage sampling circuit 4 includes voltage sensor, electricity
Pressure sensor is connected to filter circuit 3, and filter circuit 3 connects change-over circuit 2.
In the embodiment of the present invention, control module 1 includes microprocessor, and microprocessor uses TMS320LF2812 core
Sheet is as the core component of control module 1, and it is capable of the calculating task of multiple parameters of the quality of power supply,
Provide communication interface, it is possible to carry out information sharing with other equipment simultaneously.
With reference to the accompanying drawings 2, filter circuit 3 is connected between voltage sampling circuit 4 and change-over circuit 2, filtered electrical
Road 3 includes frequency overlapped-resistable filter, and wherein the negative pole of frequency overlapped-resistable filter connects voltage sensor, its outfan
Connect change-over circuit；By Anti-aliasing Filter Circuits 3 can force voltage signal pass through one band-limited
Low pass filter, the cut-off frequency of this wave filter is the half of sample frequency, it is therefore prevented that frequency alias heating is sent out
Penetrate；Change-over circuit 2 includes voltage comparator, the outfan link control module 1 of voltage rate of exchange device, voltage ratio
The positive pole of relatively device is connected with filter circuit 3, be in series with between voltage comparator and filter circuit 3 resistance R9 and
Resistance R10, the indirection point of resistance R9 and resistance R10 is connected to the negative pole of voltage comparator, and line is connected
Having capacitor C3 and resistance R8, the negative pole of voltage comparator passes through resistance R6 ground connection, capacitor C3 and resistance
R8 contact connects the outfan of comparator with voltage, and the signal of input is transformed into square-wave signal by change-over circuit 2,
In order to sampling needs require to count in a cycle of signal, need to design a phase-locked loop circuit,
The input of locking loop is connected to the input of change-over circuit, and the outfan of change-over circuit connects conversion electricity
The voltage comparator on road, phase-locked loop circuit is made up of phaselocked loop integrated chip CD4046 and frequency divider CD4040.
The secondary monitoring device arranged in shelf depreciation and device for detecting temperature in the embodiment of the present invention can be real
Time monitoring shelf depreciation and the voltage supply situation of device for detecting temperature, it is possible to find whether voltage occurs in time
Problem, it is possible to adjust voltage in time, protects this monitoring device so that power system will not be because of to shelf depreciation
And device for detecting temperature breaks down and causes the generation of electric power system fault.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to described
Embodiment.For a person skilled in the art, in the situation without departing from the principle of the invention and spirit
Under, these embodiments are carried out multiple change, revises, replace and modification, still fall within the protection of the present invention
In the range of.
Claims (6)
1. the secondary device that shelf depreciation and device for detecting temperature are monitored, it is characterised in that: include electricity
Energy sampling module, control module and memory module, described electric energy sampling module is connected to described control module even
Connecing, described memory module is connected with described control module；Described electric energy sampling module include voltage sampling circuit,
Filter circuit and change-over circuit, described voltage sampling circuit includes voltage sensor, and described voltage sensor is even
Receiving described filter circuit, described filter circuit connects described change-over circuit.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described filter circuit is connected between described current sampling circuit and described change-over circuit, its
Including frequency overlapped-resistable filter, the negative pole of wherein said frequency overlapped-resistable filter connects described voltage sensor, and it is defeated
Go out end and connect described change-over circuit.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described change-over circuit includes voltage comparator, the outfan of described voltage rate of exchange device connects control
Molding block, the positive pole of described voltage comparator is connected with described filter circuit, and described voltage comparator is with described
The indirection point being in series with resistance R9 and resistance R10, described resistance R9 and resistance R10 between filter circuit connects
To the negative pole of described voltage comparator, line is in series with capacitor C3 and resistance R8, described voltage comparator
Negative pole by resistance R6 ground connection, described capacitor C3 and resistance R8 contact connect and carry described voltage comparator
Outfan.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: on described change-over circuit, be additionally provided with phase-locked loop circuit, the input of described locking loop
Being connected to the input of described change-over circuit, the outfan of described change-over circuit connects the electricity of described change-over circuit
Pressure comparator.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: described control module includes microprocessor.
A kind of secondary device that shelf depreciation and device for detecting temperature are monitored,
It is characterized in that: in described control module, be also associated with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510801.1A CN105974179A (en) | 2016-07-01 | 2016-07-01 | Secondary equipment for monitoring partial discharge and temperature monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510801.1A CN105974179A (en) | 2016-07-01 | 2016-07-01 | Secondary equipment for monitoring partial discharge and temperature monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105974179A true CN105974179A (en) | 2016-09-28 |
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ID=56954604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610510801.1A Pending CN105974179A (en) | 2016-07-01 | 2016-07-01 | Secondary equipment for monitoring partial discharge and temperature monitoring device |
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| Country | Link |
|---|---|
| CN (1) | CN105974179A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292781A (en) * | 2016-10-28 | 2017-01-04 | 合肥舒实工贸有限公司 | A kind of temperature controller with voltage protection function |
| CN106444911A (en) * | 2016-10-28 | 2017-02-22 | 合肥舒实工贸有限公司 | Intelligent temperature controller |
| CN106486962A (en) * | 2016-10-28 | 2017-03-08 | 合肥舒实工贸有限公司 | A kind of temperature controller with current protecting function |
| CN106527522A (en) * | 2016-10-28 | 2017-03-22 | 合肥舒实工贸有限公司 | Temperature controller with protection function |
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| CN201562022U (en) * | 2009-11-16 | 2010-08-25 | 深圳市华力特电气股份有限公司 | On-line electric energy quality monitoring instrument and on-line electric energy quality monitoring system |
| CN202433447U (en) * | 2011-12-16 | 2012-09-12 | 广东电网公司东莞供电局 | Dual central processing unit (CPU)-based electric energy quality online monitor |
| CN203133168U (en) * | 2012-12-14 | 2013-08-14 | 浙江师范大学 | Power harmonic detector |
| CN203909138U (en) * | 2014-06-18 | 2014-10-29 | 中国航天科技集团公司第九研究院第七七一研究所 | General three-phase AC signal synchronous sampling device |
| CN204389582U (en) * | 2015-02-16 | 2015-06-10 | 西安科技大学 | A kind of power quality analyzer voltage acquisition and conditioning circuit |
| CN205120856U (en) * | 2015-10-15 | 2016-03-30 | 广州供电局有限公司 | Power quality monitor device of transformer substation |
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2016
- 2016-07-01 CN CN201610510801.1A patent/CN105974179A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201562022U (en) * | 2009-11-16 | 2010-08-25 | 深圳市华力特电气股份有限公司 | On-line electric energy quality monitoring instrument and on-line electric energy quality monitoring system |
| CN202433447U (en) * | 2011-12-16 | 2012-09-12 | 广东电网公司东莞供电局 | Dual central processing unit (CPU)-based electric energy quality online monitor |
| CN203133168U (en) * | 2012-12-14 | 2013-08-14 | 浙江师范大学 | Power harmonic detector |
| CN203909138U (en) * | 2014-06-18 | 2014-10-29 | 中国航天科技集团公司第九研究院第七七一研究所 | General three-phase AC signal synchronous sampling device |
| CN204389582U (en) * | 2015-02-16 | 2015-06-10 | 西安科技大学 | A kind of power quality analyzer voltage acquisition and conditioning circuit |
| CN205120856U (en) * | 2015-10-15 | 2016-03-30 | 广州供电局有限公司 | Power quality monitor device of transformer substation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292781A (en) * | 2016-10-28 | 2017-01-04 | 合肥舒实工贸有限公司 | A kind of temperature controller with voltage protection function |
| CN106444911A (en) * | 2016-10-28 | 2017-02-22 | 合肥舒实工贸有限公司 | Intelligent temperature controller |
| CN106486962A (en) * | 2016-10-28 | 2017-03-08 | 合肥舒实工贸有限公司 | A kind of temperature controller with current protecting function |
| CN106527522A (en) * | 2016-10-28 | 2017-03-22 | 合肥舒实工贸有限公司 | Temperature controller with protection function |
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Application publication date: 20160928 |