CN204612746U - The crucial transformer monitoring device of a kind of 10kV - Google Patents
The crucial transformer monitoring device of a kind of 10kV Download PDFInfo
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- CN204612746U CN204612746U CN201520062758.8U CN201520062758U CN204612746U CN 204612746 U CN204612746 U CN 204612746U CN 201520062758 U CN201520062758 U CN 201520062758U CN 204612746 U CN204612746 U CN 204612746U
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Abstract
The crucial transformer monitoring device of a kind of 10kV that the utility model proposes, comprising: sensor is put in voltage sensor, current sensor, switch acquisition unit, temperature sensor, office; Voltage signal conditioning circuit; Current signal conditioning circuit, Phototube Coupling unit, temperature signal regulation circuit, Partial discharge signal modulate circuit; Voltage high speed A/D sampling unit, electric current high-speed a/d sampling unit, on-off model modulate circuit; High-speed a/d sampling unit is put in office; To the ARM core board that described voltage signal, current signal, switching value, temperature information, office's information of putting process; The ZigBee communication module be connected with described ARM core board, network communication module, 3G/4G communication module.The utility model both can realize, to the comprehensive monitoring of the crucial transformer of 10kV, providing multiple communication modes simultaneously, was convenient to the interconnected of state monitoring apparatus and condition monitoring system.
Description
Technical field
The utility model relates to power system monitoring field, particularly relates to the crucial transformer monitoring device of a kind of 10kV.
Background technology
The crucial transformer of 10kV is one of visual plant of electric system, once break down, can bring very large impact to the safe operation of power consumer.The crucial transformer of 10kV owing to being subject to various effect of stress, will inevitably to break down and aging in During Process of Long-term Operation, causes unplanned outage, and repair time is long, costly, affect wide.The normally off-line state monitoring of the crucial transformer maintenance method of tradition 10kV, off-line state monitoring is exactly the inspection by regularly carrying out gainer to operating equipment or equipment out of service, thus the problem of discovering device and hidden danger are safeguarded it or keeped in repair.Off-line state monitoring has the advantages such as investment is little, monitoring face width, equipment are relatively simple, easy to use, but cannot accomplish to carry out Real-Time Monitoring to the crucial transformer state of 10kV, cannot the crucial transformer fault of Timeliness coverage 10kV or potential safety hazard.In recent years, electric network state monitoring at home and abroad progressively launches with Condition-Based Maintenance Technology, and obtains remarkable achievement, has built a large amount of state monitoring apparatus in transformer station.Transformer is as the important member of power equipment, and the on-line monitoring and fault diagonosing realizing its duty is imperative.
Utility model content
In order to solve the problem, the utility model provides the crucial transformer monitoring device of a kind of 10kV, comprising:
Gather the voltage sensor of working voltage when the crucial transformer of 10kV works;
Gather the current sensor of running current when the crucial transformer of 10kV works;
Gather the switch acquisition unit of switching value when the crucial transformer of 10kV works;
Gather the temperature sensor of temperature information when the crucial transformer of 10kV works;
Sensor is put in the office that information is put in the office gathered when the crucial transformer of 10kV works;
Be connected with described voltage sensor, the voltage signal conditioning circuit that the working voltage gathered described voltage sensor is nursed one's health;
Be connected with described current sensor, the current signal conditioning circuit that the running current gathered described current sensor is nursed one's health;
Be connected with described switch acquisition unit, to the on-off model modulate circuit that the switching value of described switch acquisition unit collection is nursed one's health;
Be connected with described temperature sensor, the temperature information gathered described temperature sensor carries out the temperature signal regulation circuit of signal condition;
Put sensor with described office to be connected, office's information of putting of putting sensor collection to described office carries out the Partial discharge signal modulate circuit of signal condition;
Be connected with described voltage signal conditioning circuit, the described working voltage through voltage signal conditioning circuit conditioning carried out to the voltage high speed A/D sampling unit of high-speed a/d sampling;
Be connected with described current signal conditioning circuit, the described running current through current signal conditioning circuit conditioning carried out to the electric current high-speed a/d sampling unit of high-speed a/d sampling;
Be connected with described on-off model modulate circuit, the described switching value through the conditioning of on-off model modulate circuit carried out to the Phototube Coupling unit of Phototube Coupling;
Be connected with described Partial discharge signal modulate circuit, high-speed a/d sampling unit is put to the office that described office's information of putting through the conditioning of Partial discharge signal modulate circuit carries out high-speed a/d sampling;
Put with described voltage high speed A/D sampling unit, electric current high-speed a/d sampling unit, on-off model modulate circuit, temperature signal regulation circuit, office that high-speed a/d sampling unit is connected, to the ARM core board that described voltage signal, current signal, switching value, temperature information, office's information of putting process;
Be connected with described ARM core board, ZigBee communication module, network communication module, the 3G/4G communication module of status monitoring substation or status monitoring main website will be sent to through the voltage signal of described ARM core board process, current signal, switching value, temperature information, office's information of putting.
Wherein, described voltage signal conditioning circuit is by operational amplifier TU1 working voltage being carried out to signal amplification, and resistance capacity filter R3, C1 of filtering are carried out to the working voltage through amplifying, and the voltage follower TU2 that working voltage after filtering carries out voltage follow is formed.
Wherein, described current signal conditioning circuit is by the operational amplifier TU3 described running current being carried out to signal amplification, to the controllable accurate source of stable pressure TL431 carrying out voltage stabilizing through running the running current amplified, voltage follow is carried out to the running current through voltage stabilizing, and the voltage follower TU5 converting voltage signal to forms, described voltage signal is carried out to the light-coupled isolation module HCNR201 of light-coupled isolation, the described voltage signal through light-coupled isolation is carried out to the operational amplifier TU6 of signal amplification, the voltage signal amplified through described operational amplifier TU6 is carried out to the resistance capacity filter R9 of filtering, C1 forms.
Wherein, described on-off model modulate circuit by described switching value is carried out signal filtering inductance L 1, switching value after filtering carried out to anti-breakdown diode D1 and the diode D2 that described switching value carries out voltage stabilizing formed.
Wherein, described temperature signal regulation circuit carries out the operational amplifier U11 of signal amplification by the temperature information gathered described temperature sensor, voltage follow is carried out to the described temperature information amplified through signal, and the voltage follower U12 converting voltage signal to forms.
Wherein, described Partial discharge signal modulate circuit carries out the operational amplifier U21 of signal amplification by office's information of putting of described office being put to sensor collection, voltage follow is carried out to described office's information of putting of amplifying through signal, and voltage follower U22 and U23 office's information of putting being converted to information of voltage forms.
Wherein, described ZieBee communication module adopts APC320 wireless receiving module, and itself and described ARM core board are bi-directionally connected.
Wherein, described ARM core board is bi-directionally connected by PA_5, PA_6 pin and 3G/4G module, the transmitting-receiving of control 3G/4G module.
The crucial transformer monitoring device of a kind of 10kV that the utility model proposes, both the electric parameters monitorings such as the voltage of the crucial transformer of 10kV, electric current and on off state can have been realized, the non-electric quantity monitoring such as also can realize temperature, office puts, realize the comprehensive monitoring to the crucial transformer of 10kV, there is provided multiple communication modes simultaneously, be convenient to the interconnected of state monitoring apparatus and condition monitoring system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the hardware block diagram of the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 2 is that the chip pin of ARM core board in the crucial transformer monitoring device of 10kV that the utility model provides connects distribution plan;
Fig. 3 is voltage signal conditioning circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 4 is current signal conditioning circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 5 is the 10kV crucial transformer monitoring device breaker in middle amount signal conditioning circuit figure that the utility model provides;
Fig. 6 is temperature signal regulation circuit diagram in the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 7 is Partial discharge signal modulate circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 8 is ZigBee module interface circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
Fig. 9 is 3G/4G module interface circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides.
Embodiment
Below in conjunction with diagram, describe the specific implementation process of the crucial transformer monitoring device of a kind of 10kV that the utility model provides in detail.
See Fig. 1, the utility model provides the crucial transformer monitoring device of a kind of 10kV, comprising:
Gather the voltage sensor 10 of working voltage when the crucial transformer of 10kV works;
Gather the current sensor 20 of running current when the crucial transformer of 10kV works;
Gather the switch acquisition unit 30 of switching value when the crucial transformer of 10kV works;
Gather the temperature sensor 40 of temperature information when the crucial transformer of 10kV works;
Sensor 50 is put in the office that information is put in the office gathered when the crucial transformer of 10kV works;
Be connected with described voltage sensor 10, to the voltage signal conditioning circuit 11 that the working voltage of described voltage sensor 10 collection is nursed one's health;
Be connected with described current sensor 20, to the current signal conditioning circuit 21 that the running current of described current sensor 20 collection is nursed one's health;
It should be noted that: working voltage and running current are the basic parameters that the crucial transformer of 10kV runs, the basic operation conditions of the crucial transformer of 10kV directly can be drawn by measurement working voltage and running current, can utilize each harmonic content recording Parameter analysis electrical network, the improvement for the quality of power supply provides parameter foundation.
Be connected with described switch acquisition unit 30, to the on-off model modulate circuit 31 that the switching value of described switch acquisition unit 30 collection is nursed one's health;
Described switching value is specially shunting switch state, the refrigeratory of the crucial transformer of 10kV.
Be connected with described temperature sensor 40, the temperature information of described temperature sensor 40 collection carried out to the temperature signal regulation circuit 41 of signal condition; This temperature information is the winding temperature of the crucial transformer of 10kV.
Put sensor 50 with described office to be connected, office's information of putting that sensor 50 gathers is put to described office and carries out the Partial discharge signal modulate circuit 51 of signal condition;
Be connected with described voltage signal conditioning circuit 11, the described working voltage nursed one's health through voltage signal conditioning circuit 11 carried out to the voltage high speed A/D sampling unit 12 of high-speed a/d sampling;
Be connected with described current signal conditioning circuit 21, the described running current nursed one's health through current signal conditioning circuit 21 carried out to the electric current high-speed a/d sampling unit 22 of high-speed a/d sampling;
Be connected with described on-off model modulate circuit 31, the described switching value nursed one's health through on-off model modulate circuit 31 carried out to the Phototube Coupling unit 32 of Phototube Coupling;
Be connected with described Partial discharge signal modulate circuit 51, high-speed a/d sampling unit 52 is put to the office that the described office's information of putting nursed one's health through Partial discharge signal modulate circuit 51 carries out high-speed a/d sampling;
Put with described voltage high speed A/D sampling unit 12, electric current high-speed a/d sampling unit 22, on-off model modulate circuit 31, temperature signal regulation circuit 41, office that high-speed a/d sampling unit 52 is connected, to the ARM core board 60 that described voltage signal, current signal, switching value, temperature information, office's information of putting process;
Be connected with described ARM core board 60, the voltage signal processed, current signal, switching value, temperature information, office's information of putting be sent to ZigBee (the low-power consumption LAN protocol based on IEEE802.15.4 standard) communication module 70, network communication module 80, the 3G/4G communication module 90 of status monitoring substation or status monitoring main website through described ARM core board 60.
In the crucial transformer monitoring device of the 10kV that the utility model provides, the chip pin of ARM core board connects distribution plan as shown in Figure 2.
Fig. 3 is voltage signal conditioning circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
As shown in Figure 3, voltage signal conditioning circuit 11 is by operational amplifier TU1 working voltage being carried out to signal amplification, and resistance capacity filter R3, C1 of filtering are carried out to the working voltage through amplifying, and the voltage follower TU2 that working voltage after filtering carries out voltage follow is formed.
Fig. 4 is current signal conditioning circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
As shown in Figure 4, described current signal conditioning circuit 21 is by the operational amplifier TU3 described running current being carried out to signal amplification, to the controllable accurate source of stable pressure TL431 carrying out voltage stabilizing through running the running current amplified, voltage follow is carried out to the running current through voltage stabilizing, and the voltage follower TU5 converting voltage signal to forms, described voltage signal is carried out to the light-coupled isolation module HCNR201 of light-coupled isolation, the described voltage signal through light-coupled isolation is carried out to the operational amplifier TU6 of signal amplification, the voltage signal amplified through described operational amplifier TU6 is carried out to the resistance capacity filter R9 of filtering, C1 forms.
Fig. 5 is the 10kV crucial transformer monitoring device breaker in middle amount signal conditioning circuit figure that the utility model provides;
As shown in Figure 5, EX_IN1 is the input end of switching value, described on-off model modulate circuit 31 by described switching value is carried out signal filtering inductance L 1, switching value after filtering carried out to anti-breakdown diode D1 and the diode D2 that described switching value carries out voltage stabilizing formed.Through the switching value of diode D2 voltage stabilizing after the light-coupled isolation of PC817, send into the I/O mouth ARM_PB21 of ARM core board.
Fig. 6 is temperature signal regulation circuit diagram in the crucial transformer monitoring device of 10kV that the utility model provides;
As shown in Figure 6, described temperature signal regulation circuit 41 carries out the operational amplifier U11 of signal amplification by the temperature information gathered described temperature sensor 11, voltage follow is carried out to the described temperature information amplified through signal, and the voltage follower U12 converting voltage signal to forms.Through the voltage signal access high-speed AD sampling A/D chip ADC777 that operational amplifier U12 changes, the voltage signal through AD sampling is sent into ARM core board and is processed.
Fig. 7 is Partial discharge signal modulate circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
As shown in Figure 7, described Partial discharge signal modulate circuit 51 carries out the operational amplifier U21 of signal amplification by putting office's information of putting that sensor 50 gathers to described office, voltage follow is carried out to described office's information of putting of amplifying through signal, and voltage follower U22 and U23 office's information of putting being converted to information of voltage forms.After Partial discharge signal is converted to information of voltage by voltage follower U22 and U23, access high-speed AD sampling A/D chip ADC777, the voltage signal through AD sampling is sent into ARM core board and is processed.
Fig. 8 is current signal conditioning circuit figure in the crucial transformer monitoring device of 10kV that the utility model provides;
As shown in Figure 8, ZigBee communication module 70 adopts APC320 wireless receiving module, reticulate texture is adopted to carry out networking, this structural advantages is that network is very healthy and strong, many channel transmission datas can be passed through between any two nodes simultaneously, even if part of nodes breaks down, still carry out data transmission by other passages.
APC320 module is highly integrated low-power consumption half-duplex low-power wireless data transmission module, it embeds high-speed low-power-consumption single-chip microcomputer and high-performance radio-frequency chip SI4463, innovation employing circulate efficiently intertexture error correction and detection coding, anti-interference and sensitivity improves all greatly, APC320 module provides the selection of multiple channel, can online modification serial ports speed, transmitting-receiving frequency, emissive power, the various parameters such as radio frequency speed.
ARM core board and APC320 are bi-directionally connected, APC320 has four kinds of mode of operations: normal mode, awakening mode, battery saving mode, park mode, these four kinds of mode of operations are determined by the level of SET_A and SET_B, and the pull-up resistor of SET_A and SET_B is 4.7K Ω.
Fig. 9 is the structural drawing of 3G/4G communication module in the crucial transformer monitoring device of 10kV that the utility model provides;
3G module in 3G/4G communication module 90 adopts the WCDMA module EM770 of Huawei Company, is the end product realizing fast wireless network access.Support that multiple network pattern is as HSUPA, GPRS, GSM etc.
4G module in 3G/4G communication module 90 adopts the ME936 integration module of Huawei Company, ME936 is a based on IntelM.2 standard profile design (42*30*2.3mm), weight is less than 6g, support LTE 50 Mbps uplink transmission rate and 100Mbps down peak magnitude transfer rate, the requirement of nearly all user for wireless service can be met.
ARM core board is bi-directionally connected by PA_5, PA_6 pin and 3G/4G module, the transmitting-receiving of control 3G/4G module.
The crucial transformer monitoring device of a kind of 10kV that the utility model proposes, both the electric parameters monitorings such as the voltage of the crucial transformer of 10kV, electric current and on off state can have been realized, the non-electric quantity monitoring such as also can realize temperature, office puts, realize the comprehensive monitoring to the crucial transformer of 10kV, there is provided multiple communication modes simultaneously, be convenient to the interconnected of state monitoring apparatus and condition monitoring system.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. the crucial transformer monitoring device of 10kV, is characterized in that, comprising:
Gather the voltage sensor of working voltage when the crucial transformer of 10kV works;
Gather the current sensor of running current when the crucial transformer of 10kV works;
Gather the switch acquisition unit of switching value when the crucial transformer of 10kV works;
Gather the temperature sensor of temperature information when the crucial transformer of 10kV works;
Sensor is put in the office that information is put in the office gathered when the crucial transformer of 10kV works;
Be connected with described voltage sensor, the voltage signal conditioning circuit that the working voltage gathered described voltage sensor is nursed one's health;
Be connected with described current sensor, the current signal conditioning circuit that the running current gathered described current sensor is nursed one's health;
Be connected with described switch acquisition unit, to the on-off model modulate circuit that the switching value of described switch acquisition unit collection is nursed one's health;
Be connected with described temperature sensor, the temperature information gathered described temperature sensor carries out the temperature signal regulation circuit of signal condition;
Put sensor with described office to be connected, office's information of putting of putting sensor collection to described office carries out the Partial discharge signal modulate circuit of signal condition;
Be connected with described voltage signal conditioning circuit, the described working voltage through voltage signal conditioning circuit conditioning carried out to the voltage high speed A/D sampling unit of high-speed a/d sampling;
Be connected with described current signal conditioning circuit, the described running current through current signal conditioning circuit conditioning carried out to the electric current high-speed a/d sampling unit of high-speed a/d sampling;
Be connected with described on-off model modulate circuit, the described switching value through the conditioning of on-off model modulate circuit carried out to the Phototube Coupling unit of Phototube Coupling;
Be connected with described Partial discharge signal modulate circuit, high-speed a/d sampling unit is put to the office that described office's information of putting through the conditioning of Partial discharge signal modulate circuit carries out high-speed a/d sampling;
Put with described voltage high speed A/D sampling unit, electric current high-speed a/d sampling unit, on-off model modulate circuit, temperature signal regulation circuit, office that high-speed a/d sampling unit is connected, to the ARM core board that described voltage signal, current signal, switching value, temperature information, office's information of putting process;
Be connected with described ARM core board, ZigBee communication module, network communication module, the 3G/4G communication module of status monitoring substation or status monitoring main website will be sent to through the voltage signal of described ARM core board process, current signal, switching value, temperature information, office's information of putting.
2. the crucial transformer monitoring device of 10kV as claimed in claim 1, it is characterized in that, described voltage signal conditioning circuit is by operational amplifier TU1 working voltage being carried out to signal amplification, and resistance capacity filter R3, C1 of filtering are carried out to the working voltage through amplifying, and the voltage follower TU2 that working voltage after filtering carries out voltage follow is formed.
3. the crucial transformer monitoring device of 10kV as claimed in claim 2, it is characterized in that, described current signal conditioning circuit is by the operational amplifier TU3 described running current being carried out to signal amplification, to the controllable accurate source of stable pressure TL431 carrying out voltage stabilizing through running the running current amplified, voltage follow is carried out to the running current through voltage stabilizing, and the voltage follower TU5 converting voltage signal to forms, described voltage signal is carried out to the light-coupled isolation module HCNR201 of light-coupled isolation, the described voltage signal through light-coupled isolation is carried out to the operational amplifier TU6 of signal amplification, the voltage signal amplified through described operational amplifier TU6 is carried out to the resistance capacity filter R9 of filtering, C1 forms.
4. the crucial transformer monitoring device of 10kV as claimed in claim 3, it is characterized in that, described on-off model modulate circuit by described switching value is carried out signal filtering inductance L 1, switching value after filtering carried out to anti-breakdown diode D1 and the diode D2 that described switching value carries out voltage stabilizing formed.
5. the crucial transformer monitoring device of 10kV as claimed in claim 4, it is characterized in that, described temperature signal regulation circuit carries out the operational amplifier U11 of signal amplification by the temperature information gathered described temperature sensor, voltage follow is carried out to the described temperature information amplified through signal, and the voltage follower U12 converting voltage signal to forms.
6. the crucial transformer monitoring device of 10kV as claimed in claim 5, it is characterized in that, described Partial discharge signal modulate circuit carries out the operational amplifier U21 of signal amplification by office's information of putting of described office being put to sensor collection, voltage follow is carried out to described office's information of putting of amplifying through signal, and voltage follower U22 and U23 office's information of putting being converted to information of voltage forms.
7. the crucial transformer monitoring device of 10kV as claimed in claim 6, it is characterized in that, described ZieBee communication module adopts APC320 wireless receiving module, and itself and described ARM core board are bi-directionally connected.
8. the crucial transformer monitoring device of 10kV as claimed in claim 7, it is characterized in that, described ARM core board is bi-directionally connected by PA_5, PA_6 pin and 3G/4G module, the transmitting-receiving of control 3G/4G module.
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| CN201520062758.8U CN204612746U (en) | 2015-01-29 | 2015-01-29 | The crucial transformer monitoring device of a kind of 10kV |
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| CN201520062758.8U CN204612746U (en) | 2015-01-29 | 2015-01-29 | The crucial transformer monitoring device of a kind of 10kV |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104568015A (en) * | 2015-01-29 | 2015-04-29 | 深圳供电局有限公司 | 10kV key transformer monitoring unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568015A (en) * | 2015-01-29 | 2015-04-29 | 深圳供电局有限公司 | 10kV key transformer monitoring unit |
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