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Anti-theft alarm device and method for rack type distribution transformer

A technology for distribution transformers and anti-theft alarms, which is applied in the direction of electric alarms, etc., and can solve the problems of inability to prevent theft of bench-mounted distribution transformers and the inconvenience of anti-theft devices

Inactive Publication Date: 2018-06-29
PINGYIN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems existing in the related art that the entire bench-type distribution transformer cannot be protected from theft and the existing ant

Method used

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  • Anti-theft alarm device and method for rack type distribution transformer
  • Anti-theft alarm device and method for rack type distribution transformer
  • Anti-theft alarm device and method for rack type distribution transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1 , figure 1 It is a schematic diagram of the circuit structure of a bench-type distribution transformer anti-theft alarm device provided in the embodiment of the present application. Depend on figure 1 It can be seen that the anti-theft alarm device of the bench-type distribution transformer in this application mainly includes five parts: a rectifier, a switching relay, a switch, a UPS and a communication module.

[0040] Among them, the control terminal of the conversion relay is connected to the zero line and any one of the three phases A, B, and C of the switching power supply side of the incoming line of the distribution transformer through a rectifier, and the normally closed contact B2 of the conversion relay is connected to the UPS. The normally open contact B1 of the relay is connected with the communication module. That is, the input circuit of the conversion relay is composed of the coil of the conversion relay, the rectifier, the neutral line a...

Embodiment 2

[0052] see figure 2 , figure 2 It is a schematic diagram of the circuit structure of another bench-type distribution transformer anti-theft alarm device provided by the embodiment of the present application.

[0053] Depend on figure 2 It can be seen that the anti-theft alarm device of the bench-type distribution transformer in this application mainly includes three parts: an AC relay, a storage battery and a communication module. Among them, the coil of the AC relay is connected to the zero line and any one of the three phases A, B, and C of the switching power supply side of the distribution transformer incoming line. When there is a continuous voltage flowing through the coil between any one of the phases and the neutral line, the moving contact and the normally open contact are disconnected. When there is no continuous voltage between the phase and the neutral line, the moving contact and the normally open contact are closed to trigger the communication module. The ...

Embodiment 3

[0062] exist figure 1 and figure 2 On the basis of the illustrated embodiment see image 3 , image 3 It is a schematic flowchart of an anti-theft alarm method for a bench-type distribution transformer provided in an embodiment of the present application. Depend on image 3 As can be seen, the method includes the following steps:

[0063]S1: Detect whether there is continuous voltage between any one of the three phases A, B, and C on the switching power supply side of the incoming line of the distribution transformer and the neutral line.

[0064] When any of the distribution transformer, bus cable, JP cabinet, drop-out fuse and bench in the bench-type distribution transformer is stolen, the drop-out fuse will be pulled apart, causing the distribution transformer incoming switch Power failure between any one of the three phases A, B, and C on the power supply side and the neutral line. Therefore, by detecting whether there is continuous voltage between any one of the th...

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Abstract

The invention relates to an anti-theft alarm device and method for a rack type distribution transformer. The device comprises a rectifier, a conversion type relay, a switch, a UPS (uninterruptable power system) and a communication module, wherein the control end of the conversion type relay is connected with a null line and any one of three phases of an incoming switch power supply side of the distribution transformer through a rectifier, a normally-closed contact is connected with the UPS, and a normally open contact is connected with the communication module; the communication module is usedfor sending alarm information to the terminal. The method comprises steps as follows: whether voltage continuously exists between any one of the three phases of the incoming switch power supply sideof the distribution transformer and the null line is detected, and if not, the rack type distribution transformer is stolen; when the rack type distribution transformer is stolen, the communication module is triggered through the relay; the communication module transmits outage information to the terminal. According to the device and the method, overall anti-theft of the rack type distribution transformer can be realized without influencing maintenance of the distribution transformer; besides, the device is simple in structure, and popularization and application are facilitated.

Description

technical field [0001] The present application relates to the technical field of power distribution equipment monitoring, in particular to a bench-type power distribution transformer anti-theft alarm device and method. Background technique [0002] The distribution transformer is a static electrical device used in the power distribution system to transform the AC voltage and current according to the law of electromagnetic induction and transmit the AC power. Classified from the perspective of voltage level, distribution transformers refer to power transformers with a voltage level of 35kV and below, and distribution transformers with a voltage level of 10kV and below are more common. Distribution transformers usually include box-type distribution transformers, dry-type distribution transformers and bench-type distribution transformers. [0003] Among them, the bench-type distribution transformer is also called pole-mounted transformer. Since the bench-type distribution tran...

Claims

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Application Information

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IPC IPC(8): G08B13/22
Inventor 葛栋李健张军李月娥史鹏飞
Owner PINGYIN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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