CN102928654A - input voltage detection device of box-type substation - Google Patents
input voltage detection device of box-type substation Download PDFInfo
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- CN102928654A CN102928654A CN201210447975XA CN201210447975A CN102928654A CN 102928654 A CN102928654 A CN 102928654A CN 201210447975X A CN201210447975X A CN 201210447975XA CN 201210447975 A CN201210447975 A CN 201210447975A CN 102928654 A CN102928654 A CN 102928654A
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Abstract
The invention relates to a detection device, in particular to an input voltage detection device of a box-type substation. The input voltage detection device of box-type substation comprises a high-voltage sampling circuit, a high-voltage-to-low-voltage circuit, an analog/digital (A/D) conversion circuit, a liquid crystal display circuit, a buzzer alarming circuit, a micro-programmed control unit (MCU), a relay control circuit and a safety execution circuit, wherein the safety execution circuit comprises a booster circuit and a depressurization circuit; the MCU is respectively connected with the A/D conversion circuit, the liquid crystal display circuit, the buzzer alarming circuit and the relay control circuit through an input/output (I/O) interface; and the relay control circuit is respectively connected with the booster circuit and the depressurization circuit. The input voltage detection device is in liquid crystal display mode so that various voltage information can be observed clearly, and working conditions and stability of input voltage of the whole box-type substation can be accurately judged according to the information. In addition, a feedback circuit is arranged in the safety execution circuit so that the input voltage can be stabilized to the normal value fast through effect of the feedback circuit once the input voltage has abnormal conditions.
Description
Technical field
The present invention relates to a kind of pick-up unit, more particularly, relate to box-type substation input voltage pick-up unit.
Background technology
As everyone knows, need often equipment to be checked and keep in repair as the maintenance technician of transformer station, and the input voltage that enters transformer station is high pressure, in case the improper major accident that will occur of operation, its consequence is hardly imaginable.Indicating circuit in transformer station's input voltage pick-up unit adopted charactron to show in the past, and charactron shows the size that can only demonstrate magnitude of voltage, and can't know the waveform of voltage and other information, was not easy to observe the working condition of transformer station.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the invention provides a kind of box-type substation input voltage pick-up unit.In indicating circuit of the present invention, adopt liquid crystal display, can show the various information of voltage signal, be convenient to the working condition that the maintenance technician understands transformer station better.In addition, this pick-up unit also is equipped with the indication of reporting to the police, and buzzer will send the indication of reporting to the police when voltage is lower than or exceed normal value.
In order to solve problems of the prior art, the technical solution used in the present invention is: box-type substation input voltage pick-up unit, comprise the high pressure sample circuit, high pressure turns low-voltage circuit, the A/D change-over circuit, liquid crystal display circuit and buzzer warning circuit, it also comprises the MCU control module, control relay circuit and Secure execution circuit, described Secure execution circuit comprises booster circuit and reduction voltage circuit, described MCU control module is respectively by I/O interface and A/D change-over circuit, liquid crystal display circuit, buzzer warning circuit and control relay circuit connect, described control relay circuit respectively with booster circuit, reduction voltage circuit connects.
Described MCU control module be selected from AVR, 51 or the PIC family chip in a kind of.
Described ascending, descending volt circuit adopts the different transformer of turn ratio and feedback circuit is set.
Described control relay circuit is used for the safety isolation between described MCU control module and ascending, descending volt circuit.
Beneficial effect of the present invention is: box-type substation input voltage pick-up unit, comprise the high pressure sample circuit, high pressure turns low-voltage circuit, the A/D change-over circuit, liquid crystal display circuit and buzzer warning circuit, it also comprises the MCU control module, control relay circuit and Secure execution circuit, described Secure execution circuit comprises booster circuit and reduction voltage circuit, described MCU control module is respectively by I/O interface and A/D change-over circuit, liquid crystal display circuit, buzzer warning circuit and control relay circuit connect, described control relay circuit respectively with booster circuit, reduction voltage circuit connects.Compared with the prior art the present invention owing to adopting liquid crystal display, can clearly observe the various information of voltage, can judge exactly the working condition of whole transformer station and the stability of input voltage according to these information.In addition, in Secure execution circuit of the present invention feedback circuit is set, in case that input voltage occurs is unusual, the effect by feedback circuit just is stabilized to normal value very soon.
Description of drawings
Fig. 1 is box-type substation input voltage structure of the detecting device block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1, box-type substation input voltage pick-up unit, comprise that high pressure sample circuit, high pressure turn low-voltage circuit, A/D change-over circuit, liquid crystal display circuit and buzzer warning circuit, it also comprises MCU control module, control relay circuit and Secure execution circuit, described Secure execution circuit comprises booster circuit and reduction voltage circuit, described MCU control module is connected with A/D change-over circuit, liquid crystal display circuit, buzzer warning circuit and control relay circuit by the I/O interface respectively, and described control relay circuit is connected with booster circuit, reduction voltage circuit respectively.The specific works process is as follows: during the work of this device, at first by the high pressure sample circuit high pressure collection is come in, then turn low-voltage circuit through high pressure and be converted to low pressure, because the high pressure sample circuit adopts the indirectly method of sampling of isolation, therefore each Xin Xi No of low pressure after the conversion changes, and it is converted to digital signal through the A/D change-over circuit and is input in the MCU control module.The MCU control module is according to the design of internal processes, the various information of voltage are presented on the liquid crystal display, according to gathering the voltage swing of coming, judge whether in desired normal working voltage scope simultaneously, then carry out booster circuit or reduction voltage circuit by control relay circuit as requested.When if voltage is high, carries out reduction voltage circuit and make voltage be stabilized to very soon desired normal working voltage scope by internal feedback circuitry.Otherwise, then carry out booster circuit.In addition, all relate to high pressure as booster circuit, reduction voltage circuit, the MCU control module can not directly be controlled, and needs to arrange between the two control relay circuit, is used for the safety isolation.
Claims (4)
1. box-type substation input voltage pick-up unit, comprise the high pressure sample circuit, high pressure turns low-voltage circuit, the A/D change-over circuit, liquid crystal display circuit and buzzer warning circuit, it is characterized in that: it also comprises the MCU control module, control relay circuit and Secure execution circuit, described Secure execution circuit comprises booster circuit and reduction voltage circuit, described MCU control module is respectively by I/O interface and A/D change-over circuit, liquid crystal display circuit, buzzer warning circuit and control relay circuit connect, described control relay circuit respectively with booster circuit, reduction voltage circuit connects.
2. described box-type substation input voltage pick-up unit according to claim 1 is characterized in that: institute
State the MCU control module be selected from AVR, 51 or the PIC family chip in a kind of.
3. described box-type substation input voltage pick-up unit according to claim 1, it is characterized in that: described ascending, descending volt circuit adopts the different transformer of turn ratio also feedback circuit to be set.
4. described box-type substation input voltage pick-up unit according to claim 1, it is characterized in that: described control relay circuit is used for the safety isolation between described MCU control module and ascending, descending volt circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210447975XA CN102928654A (en) | 2012-11-11 | 2012-11-11 | input voltage detection device of box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210447975XA CN102928654A (en) | 2012-11-11 | 2012-11-11 | input voltage detection device of box-type substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102928654A true CN102928654A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210447975XA Pending CN102928654A (en) | 2012-11-11 | 2012-11-11 | input voltage detection device of box-type substation |
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| Country | Link |
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| CN (1) | CN102928654A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730311A (en) * | 2013-12-24 | 2015-06-24 | 北车大连电力牵引研发中心有限公司 | Voltage detecting circuit |
| CN108490248A (en) * | 2018-03-13 | 2018-09-04 | 浙江海洋大学 | A kind of voltage monitoring and voltage protection |
| CN109358250A (en) * | 2018-10-26 | 2019-02-19 | 中国人民解放军空军勤务学院 | The quick detection device software of supply vehicle boost conversion and the quick detection device of boost conversion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588634Y (en) * | 2002-11-20 | 2003-11-26 | 沙万乾 | Intelligent electricity distribution cabinet |
| CN101650405A (en) * | 2009-08-31 | 2010-02-17 | 保定天威集团有限公司 | Difference frequency anti-interference local discharge online monitoring device |
| CN201555920U (en) * | 2009-11-03 | 2010-08-18 | 大连东方电器制造有限公司 | Input voltage detection device for high-low voltage switch cabinets and box-type substations |
| CN201773141U (en) * | 2010-04-08 | 2011-03-23 | 郑琛 | LCD induction type high-voltage electrified display device |
| CN102565612A (en) * | 2011-12-29 | 2012-07-11 | 陶永茂 | Substation bus fault and insulation automatic detecting device |
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2012
- 2012-11-11 CN CN201210447975XA patent/CN102928654A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588634Y (en) * | 2002-11-20 | 2003-11-26 | 沙万乾 | Intelligent electricity distribution cabinet |
| CN101650405A (en) * | 2009-08-31 | 2010-02-17 | 保定天威集团有限公司 | Difference frequency anti-interference local discharge online monitoring device |
| CN201555920U (en) * | 2009-11-03 | 2010-08-18 | 大连东方电器制造有限公司 | Input voltage detection device for high-low voltage switch cabinets and box-type substations |
| CN201773141U (en) * | 2010-04-08 | 2011-03-23 | 郑琛 | LCD induction type high-voltage electrified display device |
| CN102565612A (en) * | 2011-12-29 | 2012-07-11 | 陶永茂 | Substation bus fault and insulation automatic detecting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730311A (en) * | 2013-12-24 | 2015-06-24 | 北车大连电力牵引研发中心有限公司 | Voltage detecting circuit |
| CN104730311B (en) * | 2013-12-24 | 2017-11-03 | 中车大连电力牵引研发中心有限公司 | Voltage detecting circuit |
| CN108490248A (en) * | 2018-03-13 | 2018-09-04 | 浙江海洋大学 | A kind of voltage monitoring and voltage protection |
| CN109358250A (en) * | 2018-10-26 | 2019-02-19 | 中国人民解放军空军勤务学院 | The quick detection device software of supply vehicle boost conversion and the quick detection device of boost conversion |
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Application publication date: 20130213 |