CN201314941Y - Trolly wire fault alarm - Google Patents
Trolly wire fault alarm Download PDFInfo
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- CN201314941Y CN201314941Y CNU2008201566632U CN200820156663U CN201314941Y CN 201314941 Y CN201314941 Y CN 201314941Y CN U2008201566632 U CNU2008201566632 U CN U2008201566632U CN 200820156663 U CN200820156663 U CN 200820156663U CN 201314941 Y CN201314941 Y CN 201314941Y
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- microprocessor
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- power supply
- pole line
- fault alarm
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Abstract
The utility model provides a trolly wire fault alarm which comprises a sensor, a signal collecting unit, a microprocessor, a wireless RF module, a magnetic and electric converting circuit, a power supply control module and a power supply, wherein the sensor transmits fault current signals of detected trolly wires into the signal collecting unit; the signal collecting unit coverts analog signals of the collected fault current into digital signals to be transmitted to the microprocessor; the microprocessor analyzes and judges the fault information to form a message to be sent into the wireless RF module; and the wireless RF module fast sends out the message. The magnetic and electric converting circuit, the power supply control module and the power supply form a magnetic energy converting mechanism. The safe, stable and long-time operation of the warner in the field can be ensured through the magnetic energy converting mechanism.
Description
Technical field
The utility model relates to a kind of alarm, particularly relates to a kind of pole line fault alarm.
Background technology
Along with the national economy situation develops rapidly, closely-related with it transmission and distribution networks is also in quick expansion, power transmission lines is in quick extension, radius of electricity supply constantly enlarges, branched line is on the increase, cause line construction more and more complicated, the possibility that overhead transmission line breaks down is also progressively strengthening.
In a single day overhead transmission line breaks down, and searching of guilty culprit branch and trouble spot is very difficult; Query script is not only time-consuming but also require great effort, and several hours at least, tens of hours at most, need to drop into very big manpower and materials, all cause very large economy loss for Utilities Electric Co. and user, influenced power supply reliability;
The existing fault indicator has had fault indication function.But owing to do not change fault inspection pattern, also there are many deficiencies and defective on the function, lack ability to communicate again, fail well to be used always; As adopt distribution automation system, be to realize fault automatic location, but, also be difficult to be promoted effectively because input cost is very big; How to utilize the ripe communication technology, realize the location fast and automatically of fault section, improve the fault detector performance, improve its deficiency, increase data communication facility, what just show is very important and urgent.
Summary of the invention
The purpose of this utility model provides a kind of alarm of pole line fault, improving the fault detect performance of traditional fault detector, and has data communication facility, can realize the location fast and automatically of fault section.
For reaching the technical scheme that above-mentioned purpose takes be:
A kind of pole line fault alarm is provided, it comprises sensor and power supply, signal gathering unit that is connected with sensor and magnetoelectricity change-over circuit, the microprocessor that is connected with signal gathering unit, the wireless RF module that is connected with microprocessor, the energy supply control module that is connected with the magnetoelectricity change-over circuit, energy supply control module is connected with power supply, and power supply is connected respectively on signal gathering unit, microprocessor and the wireless RF module.
The inside of described sensor is divided into gathers current segment and magnetoelectricity conversion portion, gathers current segment and is connected with signal gathering unit, and the magnetoelectricity conversion portion is connected with the magnetoelectricity change-over circuit.
The beneficial effects of the utility model are remarkable.
● as above-mentioned structure, because comprise microprocessor and wireless RF module in the utility model pole line fault alarm, so it has judgement to all kinds of faults, abnormal current (comprise short circuit, ground connection, broken string, impact, shove, reclosing etc.).Utilize its networking just can realize real-time monitoring to the pole line fault; The utility model pole line fault alarm remedies the deficiency of former fault indicator feature, for the pole line fault fast positioning, get rid of and restore electricity, having won a large amount of quality time, saved a large amount of manpower and materials, is an application that all has high economic worth to enterprise, to society.
● as above-mentioned structure, the fault detect of the utility model pole line fault alarm is reported to the police and is had accuracy.Because the warning function of pole line fault alarm is to provide empirical data designed according to relevant speciality department of Utilities Electric Co.; Although fault alarm was done measured test and dynamic simulation test, the warning accuracy is basicly stable, because the signal that measured test, dynamic analog test adopted is standard signal source, with real operating mode (under the different loads) bigger gap is arranged; For solving fault alarm at the scene under the running environment, the accuracy of warning message must consider that all kinds of loads are to measuring the influence of electric current.So pole line fault alarm of the present utility model comprises microprocessor, provide deviation to adjust coefficient in the microprocessor, it is accurate to make every effort to warning message, and stable by wireless RF module, reliably, quickly and accurately all kinds of faults or abnormal information are in time reported.
● as above-mentioned structure, the fault detect warning function of the utility model pole line fault alarm is to defer to the failure criterion principle.Because comprise microprocessor in the utility model pole line fault alarm, in the microprocessor can record trouble take place by the time that the front and back abnormal current continues, and can catch the pole line electric current to break down the time moment transient current principal character, make criterion with failure exception type (normal data), make more science, more effective of fault judgement.
● as above-mentioned structure, because comprise wireless RF module in the utility model pole line fault alarm, fault alarm information just can send to the relevant personnel with the situation position of fault shaft tower, overhead transmission line in a short period of time in time, exactly by the wireless RF mechanics of communication, alleviated line walking investigation labour intensity greatly, both can save great amount of manpower and material resources, can organize manpower to rush to repair fast again, restore electricity as early as possible, breakdown loss is minimized.And, can utilize wireless palm machine or remote computer fault alarm to be carried out parameter configuration or modification by wireless RF module and microprocessor, made things convenient for and used and maintenance.
● as above-mentioned structure, because comprise microprocessor in the utility model pole line fault alarm, can be provided with multiple mode of operation, as normality or energy conservation pattern by microprocessor.Can determine its mode of operation by automatic detection load electric current; Can also differentiate transient fault or permanent fault automatically, and testing result is reported, for fault judgement, accurate location, safe operation are offered help.
● as above-mentioned structure, because comprise microprocessor and wireless RF module in the utility model pole line fault alarm, it has realized long-haul telemetry pole line load current, and measuring accuracy is that the generic failure indicator is incomparable 3%～5%.Adopt the wireless RF mechanics of communication, realized that failure message transmits fast.
● as above-mentioned structure, comprise sensor in the utility model pole line fault alarm, the magnetoelectricity change-over circuit that is connected with sensor, the energy supply control module that is connected with the magnetoelectricity change-over circuit, the power supply that is connected with energy supply control module has constituted a magnetic energy converting machine structure.Promptly work as alarm and be installed in pole line, when pole line had electric current to pass through, the electric current on the sensor sensing pole line formed magnetic field and produces voltage (utilizing the magnetoelectricity transfer principle), and energy supply control module obtains electric current, charges to power supply with this.So power supply can be supplied with the operating voltage of fault alarm automatically, incessantly.Make the utility model pole line fault alarm can be safely, stable, operation for a long time.
● in addition, can increase measures such as anti-interference, anti-current impact as above-mentioned pole line fault alarm of the present utility model, make it have anti-function such as report by mistake, refuse to submit.
Description of drawings
Fig. 1 is the structural representation of the utility model pole line fault alarm one embodiment;
Fig. 2 is the dynamic process synoptic diagram of the utility model pole line fault alarm.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model is further described:
Fig. 1, the 2nd, the structural representation of the utility model pole line fault alarm one embodiment.As shown in Figure 1, 2.Described pole line fault alarm comprises sensor 1, signal gathering unit 2 that is connected with sensor 1 and magnetoelectricity change-over circuit 7; The microprocessor 3 that is connected with signal gathering unit 2 output terminals, the wireless RF module 4 that is connected with microprocessor 3; The energy supply control module 6 that is connected with magnetoelectricity change-over circuit 7 output terminals, the power supply 5 that is connected with energy supply control module 6; Power supply 5 is connected respectively to signal gathering unit 2, microprocessor 3 and wireless RF module 4.
As shown in Figure 1 and Figure 2, the inside of described sensor 1 is divided into gathers current segment 102 and magnetoelectricity conversion portion 101, gathers current segment 102 and is connected with signal gathering unit 2, and magnetoelectricity conversion portion 101 is connected with magnetoelectricity change-over circuit 7.In the present embodiment, the structure separated into two parts of sensor 1 inside, the magnetic conduction sectional area of described magnetoelectricity conversion portion 101 is gathered the magnetic conduction sectional area of current segment 102 greater than (or greater than greater than), and dielectric isolation layer is arranged between two parts.When having electric current to pass through in the pole line 01, have the electric current of magnetoelectricity conversion portion 101 induction pole lines of big magnetic conductive area after, forms stronger magnetic field, by magnetoelectricity change-over circuit 7 generation voltages, convert electric current to and offer energy supply control module 6.When the power shortage of power supply (chargeable battery) 105, energy supply control module 6 is in time to power supply 5 chargings.So as long as have electric current to flow through in the pole line 01, energy supply control module 6 just can be power supply 5 chargings, then power supply 5 just has electricity to supply with signal gathering unit 2, microprocessor 3 and wireless RF module 4, and promptly the pole line fault alarm is just being worked always.Guaranteed that the pole line fault alarm can long-time, continual work.
Because the pole line fault alarm is environment work down out of doors, outdoor shortage condition of power supply, and the pole line fault alarm can not have a power failure, and equals the pole line fault alarm once having a power failure and quits work.So the utility model has disposed the mechanism of magnetoelectricity conversion in the pole line fault alarm,, form magnetic field by the electric current on the 101 induction pole lines 01 of the magnetoelectricity conversion portion in the sensor 1 as above-mentioned; On the magnetoelectricity change-over circuit, produce voltage, just have electric current to output on the energy supply control module 6; Energy supply control module 6 just can constantly charge to power supply (rechargeable battery).Therefore, the utility model adopts magnetoelectricity throw-over gear, as long as there is electric current to flow through (generally speaking, the electric current in the pole line〉10 ampere) on the pole line, power supply just can realize replenishing of the energy constantly being arranged, the long-term operate as normal of assurance power supply.Prevent that the pole line fault alarm from influencing operate as normal because of dead electricity.
Fig. 2 is the dynamic process of pole line fault alarm among above-mentioned Fig. 1.As shown in Figure 2, signal gathering unit 2 flows to microprocessor 3 by the current information on the 102 collection pole lines 01 of the collection current segment on the sensor 1; The judgement of comparing of 3 pairs of information that receive of microprocessor, the abnormal signal of judging outwards sends by wireless RF module 4.
As shown in Figure 1, 2, when overhead transmission line normally moved, the electric current of pole line 01 was normal load electric current (generally in a scope of design); In case break down, as; Single-phase earthing, short circuit etc., fault current can produce sudden change, and sensor 1 can detect the transient current process after the sudden change; Collection current segment 102 in the sensor 1 is delivered to signal gathering unit 2 with fault current, the analog signal conversion that signal gathering unit 2 will collect fault current becomes digital signal to deliver in the microprocessor 3, microprocessor 3 is differentiated transient state process and feature according to failure criterion, then to the fault that meets characteristic condition or the processing of storing unusually and report to the police, and the fault message delivered to wireless RF module 4, wireless RF module 4 outwards sends the fault message.
In the present embodiment, microprocessor 3 internal configurations clock module (as shown in Figure 2), so it can in time note the time that moment that the transient current in the pole line changes and the electric current under the normality change; Also dispose the fault current latch in the microprocessor 3, can store the information of many faults continuously; Microprocessor 3 also stores failure exception and judges type.Main failure exception type is as shown in table 1.After microprocessor 3 received failure message, microprocessor 3 was judged type according to this failure exception, did to be out of order or unusual last discriminating, was combined into message then and exported wireless RF module to, was outwards sent by wireless RF module.
As shown in Figure 1, 2, owing to comprise wireless RF module in the alarm, adopted advanced RF wireless communication technique, it is the transmission fault data safely and steadly, can not cause any harmful effect to the electric power primary equipment, remove the private communication line in overhead transmission line location and the investment of communication apparatus from, and do not needed to drop into a large amount of maintainers, improved fault inquiry ability and efficient.
Table 1: major failure Exception Type
Can illustrate that from above-mentioned table 1 pole line fault alarm of the present utility model can judge all types of pole line faults and unusual, comprise: shove, impact, short circuit, reclosing, broken string, tripping operation, ground connection.
Shoving described in the table 1 (or claiming excitation surge current) is a kind of phenomenon that takes place through regular meeting in the pole line operational process.Can insert various kinds of equipment in the pole line operational process, wherein the most frequently used equipment is exactly transformer.After no-load transformer combined floodgate or disconnecting external fault, in case the voltage of overhead transmission line is replied normal, sudden change (excitation) electric current can occur in Recovery Process, its current values can reach 6 times～8 times (looking the capacity of transformer) of rated current, usually this electric current is called exciting current.When transformer did not insert overhead transmission line, a load current was a null value; After transformer inserts overhead transmission line, because transformer excitation flow effect, the pole line electric current has bigger sudden change, because the threshold current of pole line fault alarm is configured according to load condition, lower (is 30A as configuration max threshold electric current) if of its threshold current configuration, excitation surge current just may be crossed threshold current (crossing 30A); For detect the excitation surge current maximal value behind the access transformer, the pole line fault alarm removes the arbitration functions that must have the excitation surge current transient state process, also measuring accuracy more accurately must be arranged, just can detect this ANOMALOUS VARIATIONS electric current; The pole line fault alarm detects when satisfying fault or unusual criterion electric current, can send fault or abnormality alarming information, also comprises lowest high-current value in its information; In reporting abnormal information, contain the excitation surge current maximal value, can help the user to understand loading condition, help the user to revise the protection parameter of circuit.
Claims (3)
1. pole line fault alarm, comprise sensor and power supply, it is characterized in that comprising the signal gathering unit and the magnetoelectricity change-over circuit that are connected with sensor, the microprocessor that is connected with signal gathering unit, the wireless RF module that is connected with microprocessor, the energy supply control module that is connected with the magnetoelectricity change-over circuit, energy supply control module is connected with power supply, and power supply is connected respectively on signal gathering unit, microprocessor and the wireless RF module.
2. pole line fault alarm according to claim 1, the inside that it is characterized in that described sensor is divided into collection current segment and magnetoelectricity conversion portion, gather current segment and be connected with signal gathering unit, the magnetoelectricity conversion portion is connected with the magnetoelectricity change-over circuit.
3. pole line fault alarm according to claim 1 is characterized in that described microprocessor is built-in with clock module, fault current latch and failure exception type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201566632U CN201314941Y (en) | 2008-12-05 | 2008-12-05 | Trolly wire fault alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201566632U CN201314941Y (en) | 2008-12-05 | 2008-12-05 | Trolly wire fault alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314941Y true CN201314941Y (en) | 2009-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201566632U Expired - Fee Related CN201314941Y (en) | 2008-12-05 | 2008-12-05 | Trolly wire fault alarm |
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| CN (1) | CN201314941Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478617A (en) * | 2010-11-29 | 2012-05-30 | 上海思南电力通信有限公司 | Intelligent overhead line fault alarm method |
| CN103278738A (en) * | 2013-04-26 | 2013-09-04 | 黄宪东 | Intelligent overhead line fault indicator with locking function |
| CN109060158A (en) * | 2018-07-16 | 2018-12-21 | 深圳太辰光通信股份有限公司 | Oil-immersed transformer Intellectual Gauge of Temperature and its data processing method |
-
2008
- 2008-12-05 CN CNU2008201566632U patent/CN201314941Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478617A (en) * | 2010-11-29 | 2012-05-30 | 上海思南电力通信有限公司 | Intelligent overhead line fault alarm method |
| CN103278738A (en) * | 2013-04-26 | 2013-09-04 | 黄宪东 | Intelligent overhead line fault indicator with locking function |
| CN109060158A (en) * | 2018-07-16 | 2018-12-21 | 深圳太辰光通信股份有限公司 | Oil-immersed transformer Intellectual Gauge of Temperature and its data processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20121205 |