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Distribution transformer ground wire alarm device

A technology for distribution transformers and alarm devices, which is applied in the direction of measuring devices, measuring electrical variables, measuring device casings, etc., can solve the problems of fixed tool size and inability to adjust, etc., and achieve the effect of reducing work and avoiding safety accidents

Active Publication Date: 2021-03-12
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problem that the size of the tool existing in the above-mentioned existing distribution transformer ground wire alarm device is fixed and cannot be adjusted, the present invention is proposed

Method used

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  • Distribution transformer ground wire alarm device
  • Distribution transformer ground wire alarm device
  • Distribution transformer ground wire alarm device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to Figure 12 , is the first embodiment of the present invention, which provides a distribution transformer ground wire alarm device, which includes a contact 100, a diode 200, an alarm 300 and a display module 400; the contact 100 is a conductor and can conduct electricity, Used to contact with the ground wire 800; the contact piece 100 is connected to the lead-in end of the diode 200 after passing through a resistor; the alarm 300 is used to detect the voltage of the ground wire 800 and send an alarm message, and the alarm 300 is connected to the lead-in end of the diode 200; the display The module 400 is used to display the voltage value of the detection ground wire 800, and the display module 400 is connected to the alarm 300;

[0049] Wherein, a threshold is preset, and if the detected voltage of the ground wire 800 is greater than the threshold, the alarm 300 sends an alarm message;

[0050] If the ground wire 800 is charged, use the one-way conductivity of...

Embodiment 2

[0053] refer to Figure 1 to Figure 4 , this embodiment is different from the first embodiment in that: it also includes a housing 500, the diode 200, the alarm 300 and the power supply 900 are located in the housing 500, the display module 400 is located on the surface of the housing 500, and the contact 100 is located in the housing 500 outside;

[0054] Wherein, the housing 500 is also provided with a locking member 501, the locking member 501 is hinged to the housing 500, an accommodating space N1 is formed between the locking member 501 and the housing 500, and the contact member 100 is located in the accommodating space N1; during detection, Place the distribution transformer grounding wire 800 in the accommodating space N1 and make contact with the contact piece 100. If the grounding wire 800 is electrified, use the unidirectional conductivity of the diode to introduce the alarm 300 and set the threshold value. The threshold is set to 36V. According to whether the grou...

Embodiment 3

[0057] refer to Figure 3 to Figure 5 , this embodiment is different from the above embodiments in that: the middle part of the locking member 501 is rotatably connected with the housing 500 through the hinge shaft 502; wherein, the drive assembly 600 includes a push rod 601 and an operation assembly 602, and the operation assembly 602 can drive the push rod 601 Moving, the push rod 601 contacts one end of the locking member 501 and can push the locking member 501 to rotate around the hinge shaft 502 .

[0058] Specifically, the operating assembly 602 includes a support member 602a and a rotary member 602b, the support member 602a is connected to the housing 500, the rotary member 602b is rotationally connected to the support member 602a, and the push rod 601 is screwed to the rotary member 602b;

[0059] Wherein, the housing 500 is penetrated with a moving chamber N2 for accommodating the push rod 601, and the push rod 601 can only move linearly in the moving chamber N2; spec...

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Abstract

The invention discloses a distribution transformer ground wire alarm device comprising a contact member which is a conductor and is used for contacting a ground wire; a diode of which a leading-in endis connected with the contact element; an alarm which is used for detecting the voltage of the ground wire and sending out alarm information and is connected with a leading-out end of the diode; anda display module which is used for displaying and detecting the voltage value of the ground wire and is connected with the alarm. A threshold is preset, and if it is detected that the voltage of the ground wire is larger than the threshold, the alarm sends out alarm information. The device can be directly installed on a ground wire, voltage data of the ground wire can be measured in time and fed back to the surrounding environment in time, safety accidents are avoided, and meanwhile more work is reduced for part of workers who carry out live-line work around.

Description

technical field [0001] The invention relates to the technical field of power tools, in particular to a ground wire alarm device for distribution transformers. Background technique [0002] As the rural power grid transformers have been erected for a long time and more and more transformers have been added to the rural power grid transformation in recent years. Many old transformers have been erected for a long time, the grounding grid is seriously corroded, and the long-term load imbalance has caused the neutral point displacement to cause the grounding wire to be electrified. With the increase of transformed transformers in recent years, most of the loads in rural power grids have changed. The unbalanced load of the station is also a reason for the electrification of the grounding wire. Especially in the wet weather environment on the ground, the human and animal safety problems caused by the electrification of the grounding wire are too numerous to enumerate. Now check the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/165G01R1/04
CPCG01R19/16576G01R1/04
Inventor 魏乾
Owner GUIZHOU POWER GRID CO LTD
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