CN103353358A - Power transmission line contact temperature indicator - Google Patents
Power transmission line contact temperature indicator Download PDFInfo
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- CN103353358A CN103353358A CN2013102929431A CN201310292943A CN103353358A CN 103353358 A CN103353358 A CN 103353358A CN 2013102929431 A CN2013102929431 A CN 2013102929431A CN 201310292943 A CN201310292943 A CN 201310292943A CN 103353358 A CN103353358 A CN 103353358A
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- transmission line
- current transformer
- temperature indicator
- contact temperature
- contact
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Abstract
The invention relates to a power transmission line contact temperature indicator which is especially used for lead contact temperature measurement of the power transmission line. The indicator comprises a shell. One side of the shell is provided with a current transformer. The current transformer is connected with a reactance converter. The reactance converter is connected with a warning device. The warning device is connected with a temperature control switch in the shell. The indicator of the invention carries out real-time temperature measurement on various kinds of contact forms of the lead and an overheating condition of the lead contact can be timely discovered. Simultaneously, the indicator of the invention is equipped with a temperature color change coating and a temperature control switch indication system. A process of contact heating can be continuously discovered according to a set temperature requirement. Generation of a broken line accident because the lead contact is in overheat state is prevented. Safe operation reliability of equipment is increased. Usage is convenient and working efficiency is high.
Description
Technical field
The present invention relates to a kind of electric system temperature indicating device, particularly the transmission line of electricity contact temperature indicator used at the wire joining thermometric of transmission line of electricity specialty belongs to electric power conveying technology field.
Background technology
In electric system overhead transmission line conductor contact thermometric process of the test, often bear larger load at circuit, when wire is larger by electric current, utilize the infrared measurement of temperature testing equipment to carry out thermometric, find whether contact is overheated.Generally, during without large load, this method is not easy generally to find whether wire joining is overheated at circuit, there is the situation of loose contact in the wire joining surface of contact, and easily bear under the large load condition at line wire, the generation wire joining blows, the broken string accident, and potential risk is higher.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of transmission line of electricity contact temperature indicator is provided, solved prior art when electric system overhead transmission line conductor contact thermometric process of the test, infrared measurement of temperature can not find in time that there is unusual problem in contact.
Technical scheme of the present invention is as follows:
Comprise housing, a side of housing is installed current transformer, and current transformer is connected with reactance transformer, and reactance transformer connects alarming device, and alarming device is connected with temperature detect switch (TDS) in the housing.
Described housing is that profile is circular-arc metal shell.
Scribble the temperature color changing coating layer on the described housing, the temperature color changing coating layer is corresponding with the wire joining contact position.
Described housing both sides are equipped with the jackscrew bolt.
Described current transformer is open-close type current transformer.
Described current transformer is exposed to be installed on the tested wire.
Described temperature detect switch (TDS) is installed in tested wire joining position.
Described alarming device is pilot lamp.
The present invention has following advantage:
The present invention carries out real time temperature to all kinds of contact forms of wire and measures, and in time finds the wire joining overheat condition.Simultaneously, one of indicator outfit of the present invention is temperature color changing coating, the 2nd, and the temperature detect switch (TDS) indication mechanism can be according to the temperature requirement that arranges, and continuity is found the process of contact heating.It is overheated to prevent because of wire joining, and the broken string accident occurs, and improves the equipment safety operation reliability, and easy to use, high efficiency.
In addition, wire insulation cap can be reused, and has reduced production cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is circuit theory schematic diagram of the present invention.
Among the figure, 1, wire, 2, aluminium hydraulic pressed connecting pipe, 3, compressed steel pipe when wire is pegged graft, 4, housing, 5, open-close type current transformer, 6, reactance transformer, 7, temperature detect switch (TDS), 8, pilot lamp, 9, the heat discoloration dope layer, 10, the jackscrew bolt.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe the present invention in detail.
Embodiment
As shown in Figure 1, comprise by metal material make, profile is circular-arc metal shell 4, the outside surface middle part brushing temperature color changing coating layer 9 of housing, the temperature color changing coating layer is corresponding with the wire joining contact position; The housing both sides are fixed by jackscrew bolt 10 and aluminium hydraulic pressed connecting pipe.One side of housing is installed open-close type current transformer 5, open-close type current transformer 5 exposed being installed on the tested wire 1, the current transformer joint is connected with the reactance transformer 6 that is arranged on the housing below, reactance transformer 6 links to each other with pilot lamp 8 on being arranged on housing, temperature detect switch (TDS) 7 in pilot lamp 8 and the metal shell is connected, and forms a circuit.The temperature color changing coating layer can be according to the requirement configuration of setting, current transformer and reactance transformer are combined to form voltage in the indicator circuit, electric current is taken from measured wire induction current, temperature detect switch (TDS) is installed in tested wire joining position, temperature detect switch (TDS) control folding can select 70 ℃ often to open, closing of circuit when surpassing 70 ℃, pilot lamp is glittering, can be according to the requirement configuration of setting.The metal shell size is relevant with wire type and contact pattern (compression joint type, explosion pressure type, wound form).
Fig. 2 is circuit theory schematic diagram of the present invention, and DKB is reactance transformer among the figure, and a side terminal connects current transformer among the figure, and the b side terminal connects pilot lamp and temperature detect switch (TDS) even load.
The above is specific embodiments of the invention and the know-why used, and is any based on the equivalent transformation on the technical solution of the present invention basis, all belongs within protection scope of the present invention.
Claims (8)
1. transmission line of electricity contact temperature indicator is characterized in that comprising housing, and a side of housing is installed current transformer, and current transformer is connected with reactance transformer, and reactance transformer connects alarming device, and alarming device is connected with temperature detect switch (TDS) in the housing.
2. transmission line of electricity contact temperature indicator according to claim 1 is characterized in that described housing is that profile is circular-arc metal shell.
3. transmission line of electricity contact temperature indicator according to claim 1 and 2 is characterized in that scribbling the temperature color changing coating layer on the described housing, and the temperature color changing coating layer is corresponding with the wire joining contact position.
4. transmission line of electricity contact temperature indicator according to claim 1 is characterized in that described housing both sides are equipped with the jackscrew bolt.
5. transmission line of electricity contact temperature indicator according to claim 1 is characterized in that described current transformer is open-close type current transformer.
6. transmission line of electricity contact temperature indicator according to claim 1 or 5 is characterized in that described current transformer is exposed to be installed on the tested wire.
7. transmission line of electricity contact temperature indicator according to claim 1 is characterized in that described temperature detect switch (TDS) is installed in tested wire joining position.
8. transmission line of electricity contact temperature indicator according to claim 1 is characterized in that described alarming device is pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102929431A CN103353358A (en) | 2013-07-12 | 2013-07-12 | Power transmission line contact temperature indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102929431A CN103353358A (en) | 2013-07-12 | 2013-07-12 | Power transmission line contact temperature indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103353358A true CN103353358A (en) | 2013-10-16 |
Family
ID=49309752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102929431A Pending CN103353358A (en) | 2013-07-12 | 2013-07-12 | Power transmission line contact temperature indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103353358A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707686A (en) * | 1986-04-03 | 1987-11-17 | General Electric Company | Over temperature sensing system for power cables |
| CN2172917Y (en) * | 1993-12-03 | 1994-07-27 | 李江峰 | Butterfly temp-sensitive connector |
| CN2373847Y (en) * | 1999-02-26 | 2000-04-12 | 琚永安 | Overtemperature alarm device for electric equipment and current curried conductor |
| CN203337283U (en) * | 2013-07-12 | 2013-12-11 | 国家电网公司 | Contact temperature indicator for power transmission line |
-
2013
- 2013-07-12 CN CN2013102929431A patent/CN103353358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707686A (en) * | 1986-04-03 | 1987-11-17 | General Electric Company | Over temperature sensing system for power cables |
| CN2172917Y (en) * | 1993-12-03 | 1994-07-27 | 李江峰 | Butterfly temp-sensitive connector |
| CN2373847Y (en) * | 1999-02-26 | 2000-04-12 | 琚永安 | Overtemperature alarm device for electric equipment and current curried conductor |
| CN203337283U (en) * | 2013-07-12 | 2013-12-11 | 国家电网公司 | Contact temperature indicator for power transmission line |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131016 |