CN204789871U - Fault monitoring device based on distributing type record ripples - Google Patents
Fault monitoring device based on distributing type record ripples Download PDFInfo
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- CN204789871U CN204789871U CN201520507789.XU CN201520507789U CN204789871U CN 204789871 U CN204789871 U CN 204789871U CN 201520507789 U CN201520507789 U CN 201520507789U CN 204789871 U CN204789871 U CN 204789871U
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Abstract
The utility model provides a fault monitoring device based on distributing type record ripples, including current sensor and voltage sensor, on each branch line, voltage sensor sets up on the medium -voltage line on joining in marriage net transmission line three -phase in the current sensor setting, connects through wireless data transmission foundation between the voltage sensor in current sensor and the effective communication distance, finally carries out data transmission by voltage sensor through wireless operator network and backstage. The utility model has the advantages that: carry out real -time supervision, record ripples through erectting current sensor and voltage sensor on the transmission line voltage electric current information on to the circuit, moreover the on -engine installation of these device dispersions lay on transmission line the final function that realizes distributing type record ripples.
Description
Technical field
The utility model relates to a kind of fault monitoring device of electric system, specifically a kind of fault monitoring device based on distributed wave recording.
Background technology
The integrity problem of electric system penetrates into the various aspects such as Power System Planning, design, operation, management.And the delivery of distribution increases year by year, the simultaneously increase of the load of electrical network is also proposed high requirement to the reliability and stability of power supply, therefore strengthens the safe operation management of distribution line equipment and Fault Quick Diagnosis and has become important business instantly.
In looped network distribution system, particularly use in a large number in the system of ring net load switch, if there occurs short trouble or earth fault in next stage distribution network system, the electric power system of upper level must carry out disjunction, to prevent major accident in official hour.
Existing product fault detector is used to carry out the equipment that short circuit and earth-fault indicator are used to detect short circuit and earth fault.The defect that this equipment mainly exists is:
1) singlephase earth fault of small current neutral grounding system cannot identify, because fault detector is a single equipment, cannot carry out comprehensive descision.
2) misoperation, can because circuit breaker trip, and indicator experiences electric current again and voltage all reduces to zero, seemingly produces misoperation with fault current feature class.
3) owing to being single equipment, so some situations of circuit outlet time maintainer can not judge to break down when breaking down, the not property recalled, the level of informatization is low.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of fault monitoring device based on distributed wave recording, can carry out Real-Time Monitoring, and carry out record ripple to the electric current on circuit and voltage.
According to the technical scheme that the utility model provides, the described fault monitoring device based on distributed wave recording comprises current sensor and voltage sensor, described current sensor to be arranged on distribution transmission line of electricity three-phase on each branched line, described voltage sensor is arranged on medium-voltage line, data acquisition is carried out by capacitance type potential transformer, connected by Wireless Data Transmission between voltage sensor in current sensor and effective communication distance, finally carry out data cube computation by voltage sensor by wireless carrier network and backstage.
Described voltage sensor and current sensor are laid nearby, and making has multiple current sensor in the effective communication distance of a voltage sensor.
Described current sensor comprises: power supply unit and data processing unit, and described power supply unit adopts to be got and can obtain the working power of the electric current on circuit as current sensor by current transformer.Described data processing unit comprises: the wireless data transmission unit be connected with microprocessor, GPS time service unit, data storage cell, front end current regulating circuit, and the input end of described front end current regulating circuit connects metering current mulual inductor.
Described voltage sensor comprises: the front voltage modulate circuit be connected with microprocessor, wireless data transmission unit, 3G transmission unit, GPS time service unit, configuration information unit, data storage cell, the input end of front voltage modulate circuit connects front end capacitance type potential transformer, and the power unit of described voltage sensor comprises the energy-storage units and solar powered unit that are connected with each other.
The utility model has the advantages that: by being erected at current sensor on transmission line of electricity and voltage sensor carries out Real-Time Monitoring, record ripple to the electric current and voltage information on circuit, and these devices disperse random installation to be laid on transmission line of electricity, finally realize the function of distributed wave recording.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of the utility model current sensor.
Fig. 2 is the circuit structure block diagram of the utility model voltage sensor.
Fig. 3 is the artwork of the utility model current sensor and voltage sensor.
Fig. 4 is the state of small current neutral grounding when occurring.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The utility model proposes a kind of fault monitoring device based on distributed wave recording, this device forms primarily of two parts, is divided into wire running current status real time monitor device and line voltage distribution real-time monitoring device.The utility model main application is to carry out Real-Time Monitoring to the electric current on circuit and voltage, and carry out record ripple, stable state and transient data analysis can be carried out simultaneously, steady state data is that the voltage and current data that circuit runs are carried out online computational analysis and obtained, transient data is analyzed to backstage by wireless or wired port transmission, for carrying out auxiliary positioning.
Described wire running current status real time monitor device adopts current sensor, and line voltage distribution real-time monitoring device adopts voltage sensor.
As shown in Figure 1, current sensor forms primarily of two parts current sense implement body: power supply unit and data processing unit.Power supply unit mainly adopts the method for wire power taking: adopt and get energy current transformer, can carry out " stealing " by unit, obtaining the energy needed for equipment work by getting to the electric current on circuit.Described data processing unit comprises: the wireless data transmission unit be connected with microprocessor, GPS time service unit, data storage cell, front end current regulating circuit, and the input end of described front end current regulating circuit connects metering current mulual inductor.
Voltage sensor implement body as shown in Figure 2, comprise: the front voltage modulate circuit be connected with microprocessor, wireless data transmission unit, 3G transmission unit (or other wireless network transmissions unit), GPS time service unit, configuration information unit, data storage cell, the input end of front voltage modulate circuit connects front end capacitance type potential transformer, the wherein routing iinformation of configuration information unit storage voltage sensor, the power unit of described voltage sensor comprises the energy-storage units and solar powered unit that are connected with each other.
On circuit, scheme of installation is shown in Fig. 3, current sensor is arranged on the A on distribution transmission line of electricity, B, on C three-phase, and these Node distribution each branch's link on three-phase, the electric current of each branch is monitored, voltage sensor is laid near current sensor, voltage sensor is equally distributed on each branched line without image current sensor, adopt the principle laid with current sensor nearby, in the effective communication distance (as 200 meters) of a voltage sensor, have multiple current sensor.
Current sensor is arranged on the branched line of distribution, carries out collection at a high speed, and store data in this locality to the electric current on circuit, and the real-time waveform to electric current on circuit carries out analytical calculation simultaneously, obtains the current data of stable state.Arrangement principle adopts A, B, C three-phase to lay.
Voltage sensor is arranged on medium-voltage line (380V ~ 10kV), data acquisition is carried out by capacitance type potential transformer, store data in this locality simultaneously, capacitance type potential transformer is laid in A, B, under the medium-voltage line of C three-phase, to voltage fall and short-circuit signal carries out analyzing and processing, can identify short trouble, low current grounding.
Electric current and voltage sensor carry out data interaction by wireless data transmission unit, and finally carry out data transmission by voltage sensor by wireless carrier network (as 3G), local data can also can be called by timing transmission.
The utility model is by being erected at current sensor on transmission line of electricity and voltage sensor carries out Real-Time Monitoring, record ripple to the electric current and voltage information on circuit, and these devices disperse random installation to be laid on transmission line of electricity, finally realize the function of distributed wave recording.This device 1. achieves distribution branched line electric current real time on-line monitoring, and carries out record ripple; 2. adopt distribution branched line distributed wave recording to carry out the mode of fault diagnosis, Real-Time Monitoring, record being carried out to the electric current on circuit, carrying out when breaking down reviewing looking up the fault reason; 3. merge voltage sensor and carry out fault diagnosis, record ripple is carried out to voltage signal, aid decision making simultaneously.
By this mode of distributed wave recording, operating maintenance personnel can be that faults by what judge to these real-time information analyses that concrete transmission line of electricity occurs when fault occurs, and also can be recognized the region of trouble spot generation on circuit by algorithm simultaneously.
Fig. 4 is the sight occurring low current grounding, when the situation having high resistance ground as trees to occur small current neutral grounding, traditional such fault of fault detector None-identified, adopts distributed wave recording, the situation of this small area analysis sudden change can be recorded, recognize the existence of fault.
Claims (5)
1. based on the fault monitoring device of distributed wave recording, it is characterized in that: comprise current sensor and voltage sensor, described current sensor to be arranged on distribution transmission line of electricity three-phase on each branched line, described voltage sensor is arranged on medium-voltage line, connected by Wireless Data Transmission between voltage sensor in current sensor and effective communication distance, finally carry out data cube computation by voltage sensor by wireless carrier network and backstage.
2., as claimed in claim 1 based on the fault monitoring device of distributed wave recording, it is characterized in that, described voltage sensor and current sensor are laid nearby, and making has multiple current sensor in the effective communication distance of a voltage sensor.
3. as claimed in claim 1 based on the fault monitoring device of distributed wave recording, it is characterized in that, described current sensor comprises: power supply unit and data processing unit, and described power supply unit adopts to be got and can obtain the working power of the electric current on circuit as current sensor by current transformer.
4. as claimed in claim 3 based on the fault monitoring device of distributed wave recording, it is characterized in that, described data processing unit comprises: the wireless data transmission unit be connected with microprocessor, GPS time service unit, data storage cell, front end current regulating circuit, and the input end of described front end current regulating circuit connects metering current mulual inductor.
5. as claimed in claim 1 based on the fault monitoring device of distributed wave recording, it is characterized in that, described voltage sensor comprises: the front voltage modulate circuit be connected with microprocessor, wireless data transmission unit, 3G transmission unit, GPS time service unit, configuration information unit, data storage cell, the input end of front voltage modulate circuit connects front end capacitance type potential transformer, and the power unit of described voltage sensor comprises the energy-storage units and solar powered unit that are connected with each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520507789.XU CN204789871U (en) | 2015-07-14 | 2015-07-14 | Fault monitoring device based on distributing type record ripples |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520507789.XU CN204789871U (en) | 2015-07-14 | 2015-07-14 | Fault monitoring device based on distributing type record ripples |
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| CN204789871U true CN204789871U (en) | 2015-11-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443327A (en) * | 2016-08-31 | 2017-02-22 | 国网山东省电力公司曹县供电公司 | Power transmission line fault detection apparatus |
| CN110595532A (en) * | 2019-08-02 | 2019-12-20 | 北京三清互联科技有限公司 | System and method for collecting and monitoring wave recording data of power transmission line |
-
2015
- 2015-07-14 CN CN201520507789.XU patent/CN204789871U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443327A (en) * | 2016-08-31 | 2017-02-22 | 国网山东省电力公司曹县供电公司 | Power transmission line fault detection apparatus |
| CN110595532A (en) * | 2019-08-02 | 2019-12-20 | 北京三清互联科技有限公司 | System and method for collecting and monitoring wave recording data of power transmission line |
| CN110595532B (en) * | 2019-08-02 | 2021-11-26 | 北京三清互联科技有限公司 | System and method for collecting and monitoring wave recording data of power transmission line |
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