CN211698676U - Online monitoring system of intelligent ring main unit - Google Patents
Online monitoring system of intelligent ring main unit Download PDFInfo
- Publication number
- CN211698676U CN211698676U CN202020741813.7U CN202020741813U CN211698676U CN 211698676 U CN211698676 U CN 211698676U CN 202020741813 U CN202020741813 U CN 202020741813U CN 211698676 U CN211698676 U CN 211698676U
- Authority
- CN
- China
- Prior art keywords
- module
- acquisition module
- temperature
- ring main
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates to an intelligent ring main unit online monitoring system, which belongs to the technical field of intelligent ring main units; the ring main unit comprises an actuating mechanism, an SF6 air chamber and a coil power supply circuit, and comprises a single chip microcomputer, a power supply module, a stroke measurement module, a temperature and humidity acquisition module, an SF6 air chamber monitoring module, a sound acquisition module, a coil current measurement module and a cable head temperature acquisition module, wherein the stroke measurement module, the temperature and humidity acquisition module, the SF6 air chamber monitoring module, the sound acquisition module, the coil current measurement module and the cable head temperature acquisition module are; the ring main unit power supply line state monitoring device can monitor the state of a power supply line of an internal cable, an SF6 air chamber and an actuating mechanism coil and the state of health of the actuating mechanism in real time, and is simple in structure, accurate in measurement, strong in anti-interference capability and convenient to install.
Description
Technical Field
The utility model relates to an online monitoring system of intelligence looped netowrk cabinet belongs to intelligent looped netowrk cabinet technical field.
Background
The looped network cabinet is operated outdoors for a long time and is influenced by the external environment, and various problems such as the failure of an actuating mechanism, the overheating operation of a cable head, the reduction of the air pressure of an SF6 air chamber and the exceeding of the moisture can be caused by aging in the long-term operation process of the device arranged in the looped network cabinet. In order to ensure long-term stable operation of the ring main unit, the health states of the cable, the SF6 air chamber and the actuating mechanism inside the ring main unit need to be monitored in real time.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the intelligent ring main unit online monitoring system can monitor the state of a power supply circuit of an internal cable, an SF6 air chamber, an actuating mechanism coil and the state of health of an actuating mechanism in real time, and is simple in structure, accurate in measurement, strong in anti-interference capability and convenient to install.
Intelligence looped netowrk cabinet on-line monitoring system, the looped netowrk cabinet includes actuating mechanism, SF6 air chamber and coil power supply line, including singlechip, power module, stroke measurement module, humiture collection module, SF6 air chamber monitoring module, sound collection module, coil current measurement module, cable head temperature collection module that are connected with the singlechip, power module is used for supplying power for the system.
The stroke measuring module obtains the action stroke of the actuating mechanism through the displacement state returned by the linear displacement sensor, and is used for judging whether the actuating mechanism acts or not and assisting in judging the health state of the actuating mechanism; the temperature and humidity acquisition module monitors the temperature and humidity of the environment in real time; an SF6 gas chamber monitoring module obtains the pressure and the water content of SF6 in a gas chamber; the sound acquisition module acquires a vibration waveform of the actuating mechanism in a sound monitoring mode; the coil current measuring module obtains the current of the coil; the cable head temperature acquisition module acquires the current cable head temperature. The ring main unit power supply line state monitoring device can monitor the state of a power supply line of an internal cable, an SF6 air chamber and an actuating mechanism coil and the state of health of the actuating mechanism in real time, and is simple in structure, accurate in measurement, strong in anti-interference capability and convenient to install.
Preferably, the stroke measuring module comprises a linear displacement sensor and a first signal conditioning circuit which are connected in sequence, and the linear displacement sensor is installed on the actuating mechanism; the temperature and humidity acquisition module comprises a temperature and humidity sensor and a first interface circuit which are connected in sequence, and the temperature and humidity sensor is installed in the intelligent ring main unit; the SF6 air chamber monitoring module comprises an air pressure sensor, a micro-water transmitter and a second interface circuit which are connected in sequence, and the air pressure sensor and the micro-water transmitter are arranged in the SF6 air chamber; the sound acquisition module comprises a microphone and a second signal conditioning circuit which are connected in sequence and is arranged on a base of the actuating mechanism; the coil current measuring module comprises a Hall current sensor and a third signal conditioning circuit which are sequentially connected, and the Hall current sensor is connected in series in the coil power supply circuit; the first signal conditioning circuit, the first interface circuit, the second signal conditioning circuit and the third signal conditioning circuit are connected with the single chip microcomputer.
Preferably, cable head temperature acquisition module includes wireless temperature sensor, and wireless temperature sensor installs in the cable head position, and wireless temperature sensor passes through 433M communication module and connects the singlechip.
Preferably, the single chip microcomputer is connected with the background server through the LoRa communication module.
Preferably, the power supply module includes a TI power supply chip and a voltage conversion circuit.
Compared with the prior art, the utility model discloses following beneficial effect has:
intelligence looped netowrk cabinet on-line monitoring system, can real-time supervision looped netowrk cabinet internal cable, SF6 air chamber, actuating mechanism coil power supply line state and actuating mechanism's health condition, simple structure, measure accurate, interference killing feature is strong and simple to operate.
Drawings
Fig. 1 is a block diagram of the online monitoring system of the intelligent ring main unit of the present invention;
fig. 2 is a schematic circuit diagram of the first signal conditioning circuit of the present invention;
fig. 3 is a schematic circuit diagram of a second signal conditioning circuit according to the present invention.
In the figure: 1. a single chip microcomputer; 2. a power supply module; 3. a linear displacement sensor; 4. a first signal conditioning circuit; 5. a temperature and humidity sensor; 6. a first interface circuit; 7. an air pressure sensor; 8. a micro-water transmitter; 9. a second interface circuit; 10. a microphone; 11. a second signal conditioning circuit; 12. a Hall current sensor; 13. a third signal conditioning circuit; 14. a wireless temperature measuring sensor; 15. 433M communication module; 16. LoRa communication module.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
example 1
As shown in fig. 1-3, the online monitoring system of intelligent ring main unit, the ring main unit includes actuating mechanism, SF6 air chamber and coil power supply line, including singlechip 1, power module 2, the stroke measurement module, humiture acquisition module, SF6 air chamber monitoring module, sound acquisition module, coil current measurement module, the cable head temperature acquisition module of being connected with singlechip 1, power module 2 is used for supplying power for the system.
The stroke measuring module obtains the action stroke of the actuating mechanism through the displacement state returned by the linear displacement sensor 3, and is used for judging whether the actuating mechanism acts or not and assisting in judging the health state of the actuating mechanism; the temperature and humidity acquisition module monitors the temperature and humidity of the environment in real time; an SF6 gas chamber monitoring module obtains the pressure and the water content of SF6 in a gas chamber; the sound acquisition module acquires a vibration waveform of the actuating mechanism in a sound monitoring mode; the coil current measuring module obtains the current of the coil; the cable head temperature acquisition module acquires the current cable head temperature. The ring main unit power supply line state monitoring device can monitor the state of a power supply line of an internal cable, an SF6 air chamber and an actuating mechanism coil and the state of health of the actuating mechanism in real time, and is simple in structure, accurate in measurement, strong in anti-interference capability and convenient to install.
The single chip microcomputer 1 adopts an industrial-grade low-power-consumption 32-bit single chip microcomputer, the power supply module 2 comprises a TI power chip and a voltage conversion circuit, the input voltage range of the TI power chip is DC3-60V, the power supply module has the characteristic of wide voltage input, and the power supply requirements of different ring main units can be met; the output voltage is 5V, and 24V voltage can be generated after the voltage conversion circuit, so that the power supply requirement of the device is met, and meanwhile, different devices can be supplied with power.
The stroke measuring module comprises a linear displacement sensor 3 and a first signal conditioning circuit 4 which are sequentially connected, and the linear displacement sensor 3 is arranged on the actuating mechanism; the temperature and humidity acquisition module comprises a temperature and humidity sensor 5 and a first interface circuit 6 which are connected in sequence, and the temperature and humidity sensor 5 is installed in the intelligent ring main unit; the SF6 air chamber monitoring module comprises an air pressure sensor 7, a micro-water transmitter 8 and a second interface circuit 9 which are connected in sequence, wherein the air pressure sensor 7 and the micro-water transmitter 8 are arranged in the SF6 air chamber; the sound acquisition module comprises a microphone 10 and a second signal conditioning circuit 11 which are connected in sequence and is arranged on a base of the actuating mechanism; the coil current measuring module comprises a Hall current sensor 12 and a third signal conditioning circuit 13 which are sequentially connected, and the Hall current sensor 12 is connected in series in a coil power supply circuit; the first signal conditioning circuit 4, the first interface circuit 6, the second interface circuit 9, the second signal conditioning circuit 11 and the third signal conditioning circuit 13 are connected with the singlechip 1.
Here, the temperature and humidity sensor 5 adopts SHT20, and the first interface circuit 6 adopts an I2C bus; the SHT20 is a small-package high-precision temperature and humidity sensor, can convert the collected temperature and humidity into digital signals, and has strong anti-interference capability; the singlechip 1 is connected with an SHT20 through an I2C bus, and transmits data and control signals with an SHT20 through an I2C bus.
The air pressure sensor 7 adopts an MPX series pressure sensor, the MPX series pressure sensor integrates a chip, a bipolar operational amplifier circuit and a film resistor network, provides high output signals and temperature compensation, has high reliability of miniaturization and on-chip integration, and is connected with the singlechip 1 after passing through a conditioning circuit; the micro-water transmitter 8 adopts a DMT242J dew point transmitter, and has the advantages of high precision, stability, quick response and small error; the second interface circuit 9 adopts a 4-20ma interface, and the micro-water transmitter 8 is connected with the singlechip 1 through the 4-20ma interface; the real-time monitoring of the air pressure and the micro-water of the SF6 air chamber can be realized.
The sound acquisition module acquires sound signals through a microphone 10, and the sound signals are connected with the singlechip 1 after passing through a second signal conditioning circuit 11; the monitoring of sound in the ring main unit can realize the vibration state of the ring main unit in real time.
The Hall current sensor 12 has the characteristics of small package, high electrical isolation and wide measurement range, the coil current measurement module is connected with the switching-on and switching-off coil of the coil power supply circuit in series, and the switching-on and switching-off current can be monitored in real time by connecting the third signal conditioning circuit 13 with the single chip microcomputer 1.
Wherein, cable head temperature acquisition module includes wireless temperature sensor 14, and wireless temperature sensor 14 is installed in the cable head position, and wireless temperature sensor 14 passes through 433M communication module 15 and connects singlechip 1.
Wherein, singlechip 1 passes through loRa communication module 16 and connects background server.
The single chip microcomputer 1, the power supply module 2, the first signal conditioning circuit 4, the second signal conditioning circuit 11, the third signal conditioning circuit 13, the coil current measuring module, the 433M communication module 15 and the LoRa communication module 16 are all located in the same metal shell, and the metal shell is fixed in the ring main unit.
The intelligent ring main unit online monitoring system has the working process as follows:
the stroke measuring module obtains the action stroke of the actuating mechanism through the displacement state returned by the linear displacement sensor 3, and is used for judging whether the actuating mechanism acts or not and assisting in judging the health state of the actuating mechanism; the temperature and humidity acquisition module monitors the temperature and humidity of the environment in real time; an SF6 gas chamber monitoring module obtains the pressure and the water content of SF6 in a gas chamber; the sound acquisition module acquires a vibration waveform of the actuating mechanism in a sound monitoring mode; the coil current measuring module obtains the current of the coil; the cable head temperature acquisition module acquires the current cable head temperature. The health state of cable, SF6 air chamber, coil power supply line and actuating mechanism in can real-time supervision looped netowrk cabinet, simple structure, measurement accuracy, interference killing feature are strong and simple to operate.
The temperature of the cable head is measured by adopting a wireless technology, so that weak current and strong current are separated, and the method is safer; the SHT20 temperature and humidity sensor 5 has the characteristics of low power consumption and high precision, the temperature precision can reach 0.01 ℃, and the humidity can reach 0.04% RH; the vibration state of the control mechanism is monitored in a sound monitoring mode, and the control mechanism has the advantage of low cost; the 12-bit AD in the single chip microcomputer 1 is adopted, an external A/D sampling circuit is not needed, and the cost is reduced; the stroke measuring module can convert the displacement into an electric signal and transmit the electric signal to the singlechip 1, and the anti-interference capability is strong; the single chip microcomputer 1 uploads the data to the background server through the LoRaWAN through the LoRa communication module 16.
The ring main unit power supply line state monitoring device can monitor the state of a power supply line of an internal cable, an SF6 air chamber and an actuating mechanism coil and the state of health of the actuating mechanism in real time, and is simple in structure, accurate in measurement, strong in anti-interference capability and convenient to install.
Claims (5)
1. The utility model provides an online monitoring system of intelligence looped netowrk cabinet, the looped netowrk cabinet includes actuating mechanism, SF6 air chamber and coil power supply circuit, its characterized in that: the intelligent monitoring system comprises a single chip microcomputer (1), a power supply module (2), a stroke measuring module, a temperature and humidity acquisition module, an SF6 air chamber monitoring module, a sound acquisition module, a coil current measuring module and a cable head temperature acquisition module, wherein the stroke measuring module, the temperature and humidity acquisition module, the SF6 air chamber monitoring module, the sound acquisition module, the coil current measuring module and the cable head temperature acquisition module are connected with the single chip microcomputer (1), and.
2. The online monitoring system of intelligent ring main unit according to claim 1, characterized in that: the stroke measuring module comprises a linear displacement sensor (3) and a first signal conditioning circuit (4) which are sequentially connected, and the linear displacement sensor (3) is arranged on the actuating mechanism; the temperature and humidity acquisition module comprises a temperature and humidity sensor (5) and a first interface circuit (6) which are sequentially connected, and the temperature and humidity sensor (5) is installed in the intelligent ring main unit; the SF6 air chamber monitoring module comprises an air pressure sensor (7), a micro-water transmitter (8) and a second interface circuit (9) which are connected in sequence, wherein the air pressure sensor (7) and the micro-water transmitter (8) are arranged in the SF6 air chamber; the sound acquisition module comprises a microphone (10) and a second signal conditioning circuit (11) which are sequentially connected, and is arranged on a base of the execution mechanism; the coil current measuring module comprises a Hall current sensor (12) and a third signal conditioning circuit (13) which are sequentially connected, and the Hall current sensor (12) is connected in series in a coil power supply circuit; the first signal conditioning circuit (4), the first interface circuit (6), the second interface circuit (9), the second signal conditioning circuit (11) and the third signal conditioning circuit (13) are connected with the singlechip (1).
3. The online monitoring system of intelligent ring main unit according to claim 1, characterized in that: the cable head temperature acquisition module comprises a wireless temperature sensor (14), the wireless temperature sensor (14) is installed at the cable head position, and the wireless temperature sensor (14) is connected with the single chip microcomputer (1) through a 433M communication module (15).
4. The online monitoring system of intelligent ring main unit according to claim 1, characterized in that: the single chip microcomputer (1) is connected with the background server through the LoRa communication module (16).
5. The online monitoring system of intelligent ring main unit according to claim 1, characterized in that: the power supply module (2) comprises a TI power supply chip and a voltage conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020741813.7U CN211698676U (en) | 2020-05-07 | 2020-05-07 | Online monitoring system of intelligent ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020741813.7U CN211698676U (en) | 2020-05-07 | 2020-05-07 | Online monitoring system of intelligent ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211698676U true CN211698676U (en) | 2020-10-16 |
Family
ID=72783903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020741813.7U Active CN211698676U (en) | 2020-05-07 | 2020-05-07 | Online monitoring system of intelligent ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211698676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252117A (en) * | 2021-07-16 | 2021-08-13 | 常州东皓电气有限公司 | Gas monitoring system of insulating ring main unit based on wireless sensing technology |
-
2020
- 2020-05-07 CN CN202020741813.7U patent/CN211698676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252117A (en) * | 2021-07-16 | 2021-08-13 | 常州东皓电气有限公司 | Gas monitoring system of insulating ring main unit based on wireless sensing technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201845069U (en) | On-line detection device of insulation stage of capacitive equipment of distributed transformer substation | |
| CN211698676U (en) | Online monitoring system of intelligent ring main unit | |
| CN107907570B (en) | Compressed air pressure dew point online detection device and calculation method thereof | |
| CN204440209U (en) | A kind of intelligent substation type temperature and humidity control system | |
| CN205209533U (en) | Distributing type intelligent substation network monitored control system | |
| CN212648049U (en) | Integrated detection device for transformer and transformer | |
| CN213398777U (en) | Power cable intermediate head state on-line monitoring system | |
| CN115995887B (en) | Intelligent monitoring system of power transformer based on big data | |
| CN212844307U (en) | Vacuum switch mechanical characteristic test system based on Internet of things | |
| CN109238557A (en) | A kind of intelligent self-diagnosing formula pressure transmitter device | |
| CN87208972U (en) | Intelligent multi-channel temperature measurer | |
| CN211481002U (en) | Monitoring terminal for low-voltage metering box | |
| CN213423350U (en) | On-line detection device for lightning arrester of GIS (gas insulated switchgear) equipment of combined electrical apparatus | |
| CN106989830A (en) | A kind of contact of breaker temperature measuring equipment | |
| CN201298440Y (en) | Measure and control integral 10kv carrier intelligent transformer | |
| CN211374414U (en) | Electromechanical integral digital display gas density relay | |
| CN209296151U (en) | A kind of electric secondary disk cabinet temp measuring system | |
| CN2399735Y (en) | Computer controlled insulation monitor | |
| CN218216808U (en) | Intelligent pole-mounted switch state monitoring device based on 5G communication | |
| CN110780232A (en) | Automatic change looped netowrk cabinet intelligent integrated on-line monitoring device | |
| CN220305397U (en) | Practical digital feeder terminal test fixture circuit | |
| CN216207073U (en) | Micro-power consumption wireless temperature transmitter | |
| CN213482406U (en) | Medium voltage switchgear collector | |
| CN214376627U (en) | Electric appliance running state recording device | |
| CN215114650U (en) | Intelligent power terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |