CN201213094Y - Low voltage outdoor combined mutual inductor for preventing from electric charge evasion - Google Patents
Low voltage outdoor combined mutual inductor for preventing from electric charge evasion Download PDFInfo
- Publication number
- CN201213094Y CN201213094Y CNU2008200370831U CN200820037083U CN201213094Y CN 201213094 Y CN201213094 Y CN 201213094Y CN U2008200370831 U CNU2008200370831 U CN U2008200370831U CN 200820037083 U CN200820037083 U CN 200820037083U CN 201213094 Y CN201213094 Y CN 201213094Y
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- threaded rod
- nut
- plane
- voltage
- voltage extracting
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Abstract
The utility model discloses a low-voltage outdoor combined mutual inductor for preventing electricity stealing. A conducting threaded rod is fixed on a low-voltage pile head by a tightening nut and is pined by a pin, and is sheathed in the case body of the mutual inductor. A voltage drawing screw which vertically contacts with the conducting threaded rod is arranged in the mutual inductor along a radial direction, a section of plane surface is arranged on the circumference surface of the conducting threaded rod, a voltage drawing nut is arranged in the plane surface on which the conducting threaded rod is arranged, a small screw hole is drilled on the voltage drawing in a radial direction, and one end of the voltage drawing screw is screwed in the small screw hole and forms a surface contact with the plane surface on the conducting threaded rod. In the utility model, a plane surface is arranged on the circumference surface of the conducting threaded rod in a radial direction, the voltage drawing nut with a hole is arranged on the plane surface, and the voltage drawing screw in the mutual inductor is tightly screwed in the small screw hole of the nut and forms the surface contact with the plane surface of the conducting threaded rod; therefore, the contact of the contact point is firmer, and the phenomenon of creepage measurement caused by bad contact cannot occur.
Description
Technical field:
The utility model relates to the outdoor anti-electricity-theft combination transformer of a kind of low pressure, belongs to the power supply facilities technical field.
Background technology:
At present, outdoor low voltage send, the metering device of its power consumption, comprise three current transformers, insert on the kilowatt-hour meter that is installed in the open air by the electric current and the voltage of lead instrument transformer, it is exposed that but secondary connection screw, pressure-wire and the zero line of instrument transformer are, and all there is the hidden danger of stealing in these places, therefore is necessary to provide a kind of low pressure outdoor anti-electricity-theft instrument transformer.
The threaded rod in the existing instrument transformer and the connected mode of voltage extracting screw rod, as shown in Figure 1, threaded rod is screwed on the low lamination shoe by clamp nut and is socketed in the instrument transformer, in instrument transformer, radially be provided with a voltage extracting screw rod, exist voltage extracting point easily to produce loose contact and cause leaking the phenomenon of metering, when the user rocked threaded rod for stealing, the tie point of threaded rod and transformer low voltage pile crown was prone to the heating burnout phenomenon.In addition, aspect anti-electricity-theft, just be with insulating sleeve 10 outside the threaded rod above instrument transformer, and the junction of threaded rod and low lamination shoe exists still by the hidden danger of stealing.
The utility model content:
The utility model is for avoiding above-mentioned existing in prior technology weak point, providing a kind of and be difficult for by the outdoor anti-electricity-theft combination transformer of low pressure stealing, that each contact point is firm.
The utility model technical solution problem adopts following technical scheme:
The outdoor anti-electricity-theft combination transformer of a kind of low pressure, the threaded rod of conduction is fixed on the low lamination shoe by clamp nut, this threaded rod is socketed in the housing of instrument transformer, in the instrument transformer housing, radially be provided with described threaded rod and form the vertical voltage extracting screw rod that contacts, on the threaded rod periphery, axially offer one section plane, be positioned at this place, plane at threaded rod one voltage extracting nut is installed, radially offer a little screw on the nut, an end of described voltage extracting screw rod is screwed in this little screw and contacts with plane formation face on the threaded rod.
Design feature of the present utility model also is:
The voltage extracting screw rod is set to two, accordingly, axially offer the two sections plane on the threaded rod periphery of conduction, the place, plane of epimere is equipped with the voltage extracting nut, radially offer a little screw on the nut, one end of the voltage extracting screw rod on top is screwed in this little screw and contacts with plane formation face on the threaded rod, and the voltage extracting screw rod of bottom directly contacts with the plane formation face of threaded rod hypomere.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The utility model is by axially offering the plane on the threaded rod periphery of conduction, and voltage extracting nut with holes is installed in the plane, the voltage extracting screw rod is tightened in the little screw of this nut in the instrument transformer housing, and contact with the plane formation face of threaded rod, therefore the contact of this contact is more firm, the electric leakage metering phenomenon that causes because of loose contact can not occur.
The utility model has increased a voltage extracting screw rod in the instrument transformer housing, and the periphery that contact with this voltage extracting screw rod of threaded rod of conduction offered is the plane, and changing the time contacts to face contacts, and can prevent to disconnect zero line or pressure-wire stealing well.
Description of drawings:
The existing instrument transformer of Fig. 1 is installed in the cutaway view on the low lamination shoe.
Fig. 2 is installed in the cutaway view that hangs down on the lamination shoe for the utility model instrument transformer.
Fig. 3 is the front view of the utility model instrument transformer.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the upward view of Fig. 3.
Number in the figure: 1, threaded rod, 2, clamp nut, 3, low lamination shoe, 4, instrument transformer, 5, the voltage extracting screw rod, 6, the plane, 7, the voltage extracting nut, 8, pin hole, 9, insulating sleeve down, 10, insulating sleeve.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment:
Embodiment 1: referring to Fig. 2-Fig. 5, the outdoor anti-electricity-theft combination transformer of the low pressure of present embodiment, the threaded rod 1 of conduction is fixed on the low lamination shoe 3 by its bottom clamp nut 2, threaded rod 1 is socketed in the housing of instrument transformer 4, in the instrument transformer housing, radially be provided with described threaded rod 1 and form the vertical voltage extracting screw rod 5 that contacts, on the threaded rod periphery, axially offer one section plane 6, at this place, plane one voltage extracting nut 7 is installed, radially offer a little screw on the nut, an end of voltage extracting screw rod 5 is screwed in this little screw and with the plane 6 formation faces of threaded rod and contacts.
Shown in Figure 2, for avoiding the threaded rod 1 of user's stealing rolling moving conductive, cause loosening loose contact between threaded rod and the low lamination shoe 3, radially offer a pin hole 8 in the threaded rod bottom, this pin hole penetrates low lamination shoe simultaneously, when threaded rod is tightened on low lamination shoe, threaded rod is tightened in low lamination shoe with a latch.
Shown in Figure 2, for avoiding user's stealing, be with insulating sleeve 9 down in the junction of low lamination shoe and threaded rod.
Embodiment 2: referring to Fig. 2-Fig. 5, this embodiment is with embodiment 1, different is, described low pressure extracts screw rod and is set to two, accordingly, the plane of axially offering on threaded rod 1 periphery of conduction also is two sections, and the voltage extracting screw rod of bottom directly contacts with the plane formation face of threaded rod hypomere.
Claims (2)
1, the outdoor anti-electricity-theft combination transformer of a kind of low pressure, the threaded rod of conduction is fixed on the low lamination shoe by clamp nut, this threaded rod is socketed in the housing of instrument transformer, in the instrument transformer housing, radially be provided with described threaded rod and form the vertical voltage extracting screw rod that contacts, it is characterized in that, on the threaded rod periphery, axially offer one section plane, be positioned at this place, plane at threaded rod one voltage extracting nut is installed, radially offer a little screw on the nut, an end of described voltage extracting screw rod is screwed in this little screw and contacts with plane formation face on the threaded rod.
2, the outdoor anti-electricity-theft combination transformer of a kind of low pressure according to claim 1, it is characterized in that, the voltage extracting screw rod is set to two, accordingly, axially offer the two sections plane on the threaded rod periphery of conduction, the place, plane of epimere is equipped with the voltage extracting nut, radially offer a little screw on the nut, one end of the voltage extracting screw rod on top is screwed in this little screw and contacts with plane formation face on the threaded rod, and the voltage extracting screw rod of bottom directly contacts with the plane formation face of threaded rod hypomere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200370831U CN201213094Y (en) | 2008-05-28 | 2008-05-28 | Low voltage outdoor combined mutual inductor for preventing from electric charge evasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200370831U CN201213094Y (en) | 2008-05-28 | 2008-05-28 | Low voltage outdoor combined mutual inductor for preventing from electric charge evasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201213094Y true CN201213094Y (en) | 2009-03-25 |
Family
ID=40497272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200370831U Expired - Fee Related CN201213094Y (en) | 2008-05-28 | 2008-05-28 | Low voltage outdoor combined mutual inductor for preventing from electric charge evasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201213094Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655046A (en) * | 2012-04-11 | 2012-09-05 | 阿拉腾格日勒 | Stop-alarming-prevention transformer lock |
| CN103714960A (en) * | 2014-01-13 | 2014-04-09 | 国家电网公司 | Electricity larceny prevention device |
| CN109950030A (en) * | 2019-02-27 | 2019-06-28 | 南京电研电力自动化股份有限公司 | A kind of Anti-steal electric transformer and electricity anti-theft method |
| CN114188131A (en) * | 2021-12-02 | 2022-03-15 | 贵州电网有限责任公司 | Repairing method for burnt transformer pile head |
-
2008
- 2008-05-28 CN CNU2008200370831U patent/CN201213094Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655046A (en) * | 2012-04-11 | 2012-09-05 | 阿拉腾格日勒 | Stop-alarming-prevention transformer lock |
| CN103714960A (en) * | 2014-01-13 | 2014-04-09 | 国家电网公司 | Electricity larceny prevention device |
| CN103714960B (en) * | 2014-01-13 | 2016-06-01 | 国家电网公司 | A kind of anti-electricity-theft device |
| CN109950030A (en) * | 2019-02-27 | 2019-06-28 | 南京电研电力自动化股份有限公司 | A kind of Anti-steal electric transformer and electricity anti-theft method |
| CN114188131A (en) * | 2021-12-02 | 2022-03-15 | 贵州电网有限责任公司 | Repairing method for burnt transformer pile head |
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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: 20090325 Termination date: 20100528 |