CN211955707U - High-voltage cable and channel comprehensive intelligent on-line monitoring device - Google Patents
High-voltage cable and channel comprehensive intelligent on-line monitoring device Download PDFInfo
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- CN211955707U CN211955707U CN201922008982.XU CN201922008982U CN211955707U CN 211955707 U CN211955707 U CN 211955707U CN 201922008982 U CN201922008982 U CN 201922008982U CN 211955707 U CN211955707 U CN 211955707U
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Abstract
The utility model discloses an intelligent on-line monitoring device is synthesized to high tension cable and passageway relates to high tension cable detection area, and the device is including the signal acquisition mechanism, signal processor, transmission device and the backstage mechanism that connect in order, and signal acquisition mechanism includes main cable current measurement mutual-inductor, earth connection current measurement mutual-inductor, protector voltage measurement sensor, partial discharge sensor, temperature vibration sensor, ambient temperature humidity transducer, level sensor and gas sensor. The main cable current measuring transformer is connected with the high-voltage cable and is used for measuring the running current of the body on the high-voltage cable; the partial discharge sensor is sleeved outside a grounding wire of the high-voltage cable; the temperature vibration sensor is arranged at the joint of the high-voltage cable and on the surface of the high-voltage cable; the environment temperature and humidity sensor is arranged outside the high-voltage cable and used for measuring the temperature and humidity outside the high-voltage cable. The utility model discloses can carry out real-time supervision, and safer to power cable's the insulating condition.
Description
Technical Field
The utility model relates to a high tension cable detection area, concretely relates to intelligent on-line monitoring device is synthesized to high tension cable and passageway.
Background
Along with the high-speed development of electric wire netting construction, power cable's use is more and more extensive, and when power cable broke down in the use, mainly adopt the maintenance of having a power failure to overhaul, use the pressurization experiment to confirm the position of trouble in the maintenance process, however, the pressurization experiment can cause secondary damage to the insulating layer of cable, and the power failure is overhauld and also can bring inconvenience for the electric wire netting user.
Long-term practice proves that partial discharge is the main reason causing the insulation damage of the power cable, the partial discharge condition on the power cable is monitored and effectively analyzed, the insulation state of the power cable can be accurately judged in time, a fault point can be effectively positioned when a fault occurs, the workload and the maintenance cost of power failure maintenance can be effectively reduced, and the damage of a pressurization experiment to a cable insulation layer can be avoided.
However, when monitoring the power cable at present, the operation condition of the power cable is mainly monitored by manual regular detection, real-time monitoring cannot be realized, and certain danger exists in detection.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide an intelligent on-line monitoring device is synthesized to high tension cable and passageway can carry out real-time detection, and safer to power cable's the condition of discharging.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a high-voltage cable and channel comprehensive intelligent online monitoring device comprises a signal acquisition mechanism, a signal processor, a transmission mechanism and a background mechanism which are connected in sequence, wherein the signal acquisition mechanism comprises a main cable current measuring mutual inductor, a grounding wire current measuring mutual inductor, a partial discharge sensor, a temperature vibration sensor and an ambient temperature and humidity sensor;
the grounding wire current measuring transformer is used for measuring the current on the grounding wire to complete the collection of the grounding current effective value; the main cable current measuring transformer is connected with the high-voltage cable and is used for measuring the running current of the main body on the high-voltage cable; the partial discharge sensor is sleeved outside the grounding wire of the high-voltage cable; the temperature vibration sensor is arranged at the joint of the high-voltage cable and on the surface of the high-voltage cable; the environment temperature and humidity sensor is arranged outside the high-voltage cable and used for measuring the temperature and humidity outside the high-voltage cable.
Further, the signal acquisition mechanism further comprises a protector voltage measuring sensor, the signal processor is connected with the protector voltage measuring sensor, and the protector voltage measuring sensor is used for measuring the voltage of the cable grounding box protector with the protector grounded.
Further, signal acquisition mechanism still includes cable pit water level sensor and the gaseous sensor that detects of cable tunnel, cable pit water level sensor and the gaseous sensor that detects of cable tunnel all are connected with signal processor, cable pit water level sensor is used for detecting the cable pit water level, the gaseous sensor that detects of cable tunnel is arranged in detecting the gaseous composition that is arranged in the environment when high tension cable is located the tunnel inside.
Furthermore, the monitoring equipment further comprises an induction electricity taking current transformer, and the induction electricity taking current transformer is connected with the signal acquisition mechanism and used for providing electric energy for the signal acquisition mechanism.
Furthermore, a rectifier filter, a power-taking regulation protection circuit and an isolation voltage stabilizer which are connected in sequence are arranged between the induction power-taking current transformer and other signal acquisition mechanisms.
Furthermore, the signal processor comprises a filter, an amplifying circuit, a compensating circuit, a signal acquisition card and an intelligent calibration circuit which are connected in sequence.
Furthermore, the signal processor is packaged in a case, the case comprises an outer case and an inner case, the filter, the amplifying circuit, the compensating circuit, the signal acquisition card and the intelligent calibration circuit are all arranged in the inner case, and the outer case is provided with a plurality of waterproof joints.
Further, the induction electricity taking current transformer is a double-CT electricity taking device.
Furthermore, a CT electricity taking plug-in, a grounding current collecting plug-in, a cable trench water level collecting plug-in, a cable tunnel gas detection plug-in and a cable partial discharge collecting plug-in are arranged on the outer case.
Compared with the prior art, the utility model has the advantages of:
(1) in the high-voltage cable and channel comprehensive intelligent online monitoring device, the induction electricity-taking current transformer is connected with the high-voltage cable, is used for providing a backup power supply for other sensors of the signal acquisition mechanism, and is relatively environment-friendly; the earth wire current measuring mutual inductor is used for measuring the current of the earth wire so as to complete the collection of the earth current effective value; the main cable current measuring transformer is connected with the high-voltage cable and is used for measuring the running current of the body on the high-voltage cable; the partial discharge sensor is sleeved outside the grounding wire of the high-voltage cable and used for collecting the partial discharge electric quantity of the high-voltage cable so as to judge whether the partial discharge quantity is too large at the current position and the corresponding part of the surface skin is damaged; the temperature vibration sensor is arranged at the joint of the high-voltage cable and on the surface of the high-voltage cable; the protector voltage measuring sensor is used for measuring the voltage of the protector of the cable grounding box with the protector; the environment temperature and humidity sensor is arranged outside the high-voltage cable and used for measuring the temperature and humidity outside the high-voltage cable; the cable trench water level sensor is used for detecting the water level of the cable trench, and the cable tunnel gas detection sensor is used for detecting gas components in the environment when the high-voltage cable is located inside the tunnel.
Through the utility model discloses an each sensor carries out real-time on-line monitoring to each partial structure of high tension cable among the signal acquisition mechanism, can be accurate and timely judgement power cable's insulating state, the workload and the spending of daily maintenance have significantly reduced, and compare with through artifical periodic detection, not only the ageing is higher, and safer, simultaneously on-line monitoring's long-term operation will accumulate valuable historical data, carry out the system evaluation for the electric power system staff to power grid transmission line and provide data resource.
Drawings
Fig. 1 is a schematic structural view of an integrated intelligent online monitoring device for high-voltage cables and channels in the embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides an in the embodiment induction get electric current transformer and high tension cable complex schematic structure.
In the figure: 1-a signal acquisition mechanism, 2-a signal processor, 3-a transmission mechanism, 4-a background mechanism, 5-an induction electricity-taking current transformer, 6-a main cable current measuring transformer, 7-a grounding wire current measuring transformer, 8-a partial discharge sensor, 9-a temperature vibration sensor, 10-a protector voltage measuring sensor, 11-an environment temperature and humidity sensor, 12-a high-voltage cable, 13-a rectifying filter, 14-an electricity-taking regulation protection circuit, 15-an isolation voltage stabilizer, 16-a cable trench water level sensor and 17-a cable tunnel gas detection sensor.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the utility model provides an intelligent on-line monitoring device is synthesized to high tension cable and passageway, including the signal acquisition mechanism 1 who connects in order, signal processor 2, transmission device 3 and backstage mechanism 4, wherein, signal acquisition mechanism 1 still gets electric current transformer 5 with an induction and is connected, induction gets electric current transformer 5 and is used for providing the electric energy for signal acquisition mechanism 1, signal acquisition mechanism 1 includes main cable current measurement mutual-inductor 6, earth connection current measurement mutual-inductor 7, partial discharge sensor 8, temperature vibration sensor 9, protector voltage measurement sensor 10, ambient temperature humidity transducer 11, cable pit water level sensor 16 and cable tunnel gas detection sensor 17.
The main cable current measuring mutual inductor 6, the grounding wire current measuring mutual inductor 7, the partial discharge sensor 8, the temperature vibration sensor 9, the protector voltage measuring sensor 10, the environment temperature and humidity sensor 11, the cable trench water level sensor 16 and the cable tunnel gas detection sensor 17 are all connected with the signal processor 2.
Meanwhile, the induction electricity taking current transformer 5 is a double-CT electricity taking device, and a rectifier filter 13, an electricity taking regulation protection circuit 14 and an isolation voltage stabilizer 15 which are connected in sequence are arranged between the induction electricity taking current transformer 5 and the signal acquisition mechanism 1 and used for providing stable voltage for an inductor in the signal acquisition mechanism 1.
The induction electricity taking current transformer 5 is connected with the high-voltage cable 12, and the grounding wire current measuring transformer 7 is used for measuring the current on the grounding wire to complete the collection of the grounding current effective value; the main cable current measuring transformer 6 is connected with the high-voltage cable 12 and is used for measuring the running current of the body on the high-voltage cable 12; the partial discharge sensor 8 is sleeved outside the high-voltage cable 12; the temperature vibration sensor 9 is arranged at the joint of the high-voltage cable 12 and on the surface of the high-voltage cable 12; the protector voltage measuring sensor 10 is used for measuring the voltage of the protector of the cable grounding box with the protector grounding; the environment temperature and humidity sensor 11 is arranged outside the high-voltage cable 12 and used for measuring the temperature and humidity outside the high-voltage cable 12; the cable trench water level sensor 16 is used for detecting the cable trench water level, and the cable tunnel gas detection sensor 17 is used for detecting the gas composition in the environment when the high-voltage cable 12 is located inside the tunnel.
The signal processor 2 comprises a filter, an amplifying circuit, a compensating circuit, a signal acquisition card and an intelligent calibration circuit which are connected in sequence.
2 encapsulation of signal processor are in quick-witted incasement, and quick-witted case includes outer quick-witted case and interior machine case, and quick-witted incasement including wave filter, amplifier circuit, compensating circuit, signal acquisition card and intelligent calibration circuit all set up is provided with a plurality of water joint on the outer quick-witted case, in the embodiment of the utility model provides an, be provided with CT on the outer quick-witted case and get electric plug-in components, earth current collection plug-in components, cable pit water level collection plug-in components, cable tunnel gas detection plug-in components and cable office put collection plug-.
The transmission mechanism 3 comprises a signal sending device, a channel and a signal receiving device, the transmission mechanism 3 establishes a communication channel between the background and the signal acquisition mechanism 1 through a network of an operator by using a payment network provided by the wireless operator (mobile, communication and telecommunication), and the transmission mechanism 3 supports wired network communication such as optical fibers and is provided with an optical fiber input/output port.
The background mechanism comprises a background server and client software, the background server supports multiple background connections, supports heartbeat packet connection indication, supports background data downloading, supports any data transmission interval setting and supports signal network intensity query, the client software can display signal amplitude and phase angles, can display signal amplitude curves, and supports large-capacity data storage and upload cloud supporting.
The utility model discloses an installation flow as follows:
installing an induction current transformer 5 at a position where sheath circulation can be monitored: the single-section line is only provided with one induction current transformer 5 at each phase of a direct grounding end, and in a section of circulating current system, each phase is only provided with one induction current transformer 5: in a circulating system consisting of a cross interconnection box and a direct connection grounding box, an induction electricity-taking current transformer 5 is arranged in the cross interconnection box; in a circulating system consisting of only a direct-connection grounding box, an induction power-taking current transformer 5 is installed on a grounding cable outside the direct-connection grounding box.
And an intermediate joint temperature vibration sensor 9 is arranged at each sheath circulation monitoring point: the installation positions are that one temperature vibration sensor 9 is arranged in each phase of the cable joint, the three temperature vibration sensors 9 are arranged in the cable tube closest to the cable joint, the temperature vibration sensors 9 are arranged in each phase, the main cable current measuring mutual inductor 6 is arranged on the main cable, and the grounding wire current measuring mutual inductor 7 is arranged on the grounding wire.
The partial discharge sensor 8 is installed at the cable terminal grounding wire or in the cross interconnection box, the protector voltage measuring sensor 10 is installed on 3 protectors in the grounding box grounded by the protector, and the environmental gas sensor is installed at the top of the cable tunnel at intervals.
The environment temperature and humidity sensor 11 is arranged at the bottom of the cable tunnel at intervals, the cable trench water level sensor 16 is arranged in the underground 1.6-meter work well, and the cable tunnel gas detection sensor 17 is arranged in the cable tunnel.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (9)
1. The utility model provides an intelligent on-line monitoring device is synthesized to high tension cable and passageway, includes signal acquisition mechanism (1), signal processor (2), transmission device (3) and backstage mechanism (4) that connect in order, its characterized in that: the signal acquisition mechanism (1) comprises a main cable current measuring transformer (6), a grounding wire current measuring transformer (7), a partial discharge sensor (8), a temperature vibration sensor (9) and an ambient temperature and humidity sensor (11);
the earth wire current measuring mutual inductor (7) is used for measuring the current on the earth wire so as to complete the collection of the earth current effective value; the main cable current measuring transformer (6) is connected with a high-voltage cable (12) and is used for measuring the running current of the body on the high-voltage cable (12); the partial discharge sensor (8) is sleeved outside a grounding wire of the high-voltage cable (12); the temperature vibration sensor (9) is arranged at the joint of the high-voltage cable (12) and on the surface of the high-voltage cable (12); the environment temperature and humidity sensor (11) is arranged outside the high-voltage cable (12) and used for measuring the temperature and humidity outside the high-voltage cable (12).
2. The high-voltage cable and channel comprehensive intelligent online monitoring device as claimed in claim 1, wherein: the signal acquisition mechanism (1) further comprises a protector voltage measurement sensor (10), the signal processor (2) is connected with the protector voltage measurement sensor (10), and the protector voltage measurement sensor (10) is used for measuring the voltage of the cable grounding box protector with the protector grounded.
3. The high-voltage cable and channel comprehensive intelligent online monitoring device as claimed in claim 2, wherein: signal acquisition mechanism (1) still includes cable pit water level sensor (16) and the gaseous sensor (17) that detect of cable tunnel, cable pit water level sensor (16) and the gaseous sensor (17) that detect of cable tunnel all are connected with signal processor (2), cable pit water level sensor (16) are used for detecting the cable pit water level, the gaseous sensor (17) that detect of cable tunnel is arranged in detecting the gaseous composition that is arranged in environment when high tension cable (12) is located the tunnel inside.
4. The high-voltage cable and channel comprehensive intelligent online monitoring device as claimed in claim 3, wherein: the monitoring device further comprises an induction electricity taking current transformer (5), wherein the induction electricity taking current transformer (5) is connected with the signal acquisition mechanism (1) and used for providing electric energy for the signal acquisition mechanism (1).
5. The high-voltage cable and channel comprehensive intelligent online monitoring device as claimed in claim 4, wherein: a rectifying filter (13), a power-taking regulation protection circuit (14) and an isolation voltage stabilizer (15) which are connected in sequence are arranged between the induction power-taking current transformer (5) and the signal acquisition mechanism (1).
6. The integrated intelligent online monitoring device for the high-voltage cable and the channel as claimed in claim 5, wherein: the signal processor (2) comprises a filter, an amplifying circuit, a compensating circuit, a signal acquisition card and an intelligent calibration circuit which are connected in sequence.
7. The high-voltage cable and channel comprehensive intelligent online monitoring device of claim 6, characterized in that: the signal processor (2) is packaged in a case, the case comprises an outer case and an inner case, the filter, the amplifying circuit, the compensating circuit, the signal acquisition card and the intelligent calibration circuit are all arranged in the inner case, and the outer case is provided with a plurality of waterproof joints.
8. The integrated intelligent online monitoring device for the high-voltage cable and the channel as claimed in claim 7, wherein: the induction electricity taking current transformer (5) is a double CT electricity taking device.
9. The integrated intelligent online monitoring device for the high-voltage cable and the channel as claimed in claim 7, wherein: the outer case is provided with a CT electricity taking plug-in, a grounding current collecting plug-in, a cable trench water level collecting plug-in, a cable tunnel gas detection plug-in and a cable partial discharge collecting plug-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008982.XU CN211955707U (en) | 2019-11-20 | 2019-11-20 | High-voltage cable and channel comprehensive intelligent on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008982.XU CN211955707U (en) | 2019-11-20 | 2019-11-20 | High-voltage cable and channel comprehensive intelligent on-line monitoring device |
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| Publication Number | Publication Date |
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| CN211955707U true CN211955707U (en) | 2020-11-17 |
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| CN201922008982.XU Active CN211955707U (en) | 2019-11-20 | 2019-11-20 | High-voltage cable and channel comprehensive intelligent on-line monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736057A (en) * | 2023-07-13 | 2023-09-12 | 江苏恒润电力设计院有限公司 | High security power equipment live detection device |
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2019
- 2019-11-20 CN CN201922008982.XU patent/CN211955707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736057A (en) * | 2023-07-13 | 2023-09-12 | 江苏恒润电力设计院有限公司 | High security power equipment live detection device |
| CN116736057B (en) * | 2023-07-13 | 2024-04-05 | 江苏恒润电力设计院有限公司 | High security power equipment live detection device |
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