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An anti-stealing device for voltage wiring of low-voltage core-through current transformers

A technology of a current transformer and an anti-stealing device is applied in the field of anti-stealing, and achieves the effects of improving the anti-stealing performance and good isolation.

Active Publication Date: 2019-11-26
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no anti-stealing protection device for LMZ type current transformer voltage wiring at home and abroad

Method used

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  • An anti-stealing device for voltage wiring of low-voltage core-through current transformers
  • An anti-stealing device for voltage wiring of low-voltage core-through current transformers
  • An anti-stealing device for voltage wiring of low-voltage core-through current transformers

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation will be described in detail below in conjunction with the accompanying drawings:

[0027] see Figure 3 to Figure 6c , the best embodiment of the present invention, a low-voltage feedthrough current transformer voltage wiring anti-theft device, including a protective box 1, an embedded panel 2, a sealing screw 3 and a wire-wound seal (not shown in the figure) .

[0028] see again Figure 4 The protection box 1 is a semi-closed structure. The protection box 1 includes a bottom plate 11, a left side wall 12 and a right side wall 13. The bottom plate 11, the left side wall 12 and the right side wall 13 are connected to form a U-shaped groove structure. The bottom plate 11 is provided with The voltage connector fixing screw bayonet 14; the top of the left side wall 12 is provided with a protective box seal screw hole 15 and two chut...

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Abstract

The invention discloses a voltage wiring electricity larceny prevention device for a low-voltage straight-through current transformer. The device comprises a protection box, an embedded panel, a sealscrew and a winding type seal. The protection box comprises a bottom plate, a left side wall and a right side wall, the bottom plate is provided with a voltage connector fixing screw port, the top endof the left side wall is provided with a protection box seal screw hole and two slide grooves, and the inner surface of the right side wall is provided with a clamping groove. The bottom end of the left side of the embedded panel is provided with a front slide groove embedding head and a rear slide groove embedding head, the left side of the embedded panel is provided with a vertically through panel seal screw hole, and the right side of the embedded panel is provided with a clamping groove embedding head matched with the clamping groove. The tail end of the seal screw penetrates the panel seal screw hole to be fixed into the protection box seal screw hole. The voltage wiring electricity larceny prevention device for the low-voltage straight-through current transformer has advantages thata voltage connector can be effectively sealed in the electricity larceny prevention device to achieve a great isolation effect, and reusability is realized.

Description

technical field [0001] The invention relates to an anti-stealing technology of an electricity metering device, in particular to an anti-stealing device for voltage wiring of a low-voltage through-core current transformer. Background technique [0002] At present, the commonly used LMZ type low-voltage feed-through current transformer does not provide a voltage lead-out point due to its own structural characteristics. It needs to obtain voltage on the busbar by self-drilling, lead wires, and crimping with screws for electric energy measurement. Since the connector is exposed, the voltage of the ammeter can be lost by loosening the screw of the lead connector to achieve the purpose of stealing electricity. [0003] The existing practice is to use an anti-theft protection cover to seal the low-voltage current transformer terminal to prevent artificial loosening or short-circuiting of the lead wires, thereby preventing theft. For this type of anti-theft protection cover, produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/02H01F27/28H01F38/30
Inventor 陈洁陈宏观戴人杰
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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