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High-voltage electrified display

A high-voltage electrification and display technology, which is applied in the direction of instruments, measuring electrical variables, measuring current/voltage, etc., can solve problems such as display interference and normal use, and achieve the effect of convenient troubleshooting

Inactive Publication Date: 2019-03-26
句容市凯特电力电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The coupled high-voltage live display is susceptible to interference from external signals. Once the sensor is interfered, the device will be forcibly locked for safety, affecting normal use

Method used

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  • High-voltage electrified display

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] The structure of the present invention is as figure 1 As shown, it includes a number of sensors connected to high-voltage live equipment and displays corresponding to the sensors. Each sensor is provided with a locking device. The locking device is connected to its corresponding display through a signal transmission line and a locking feedback line. The display is connected through a signal transmission line. Obtain whether the device is charged, and block the device through the blocking feedback line.

[0014] As a further improvement, the display is equipped with a fault detection device to detect each device individually. When a signal transmission fault is detected, the device is forced to be blocked through the blocking feedback line, and at the same time, the sensor is continuously received through the blocking feedback line. live information.

[0015] There ...

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Abstract

The invention provides a high-voltage electrified display. The high-voltage electrified display comprises a number of sensors connected with a high-voltage electrified device and displays corresponding to the sensors one to one. A locking device is arranged in each sensor. The locking devices are connected with the corresponding displays through signal transmission lines and locking feedback linesrespectively. Each display knows whether the device is electrified through a signal transmission line, and the device is locked through a locking feedback line. According to the invention, the electrification information of the device is monitored through two contact lines, which is more safe and reliable; when one line fails, the other can temporarily perform the functions of complete signal transmission and locking; the use of the device is not affected; and troubleshooting and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of electrical control devices, in particular to a high-voltage charged display. Background technique [0002] The high-voltage live display is a kind of prompt safety device installed directly on the indoor electrical equipment to visually show whether the electrical equipment has operating voltage. When the equipment has operating voltage, the display window will flash to warn people that the high-voltage equipment is charged, and there will be no indication when there is no electricity. [0003] The existing high-voltage live display uses the electric field coupling principle between the high-voltage electric field and the sensor to perform inductive (non-contact) measurement outside a safe distance. The high-voltage live display locking device consists of two parts: the sensor and the display. Phase electrified body and grounding, no direct contact with high-voltage electrified body, and keep a certain safe distan...

Claims

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Application Information

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IPC IPC(8): G01R19/155
CPCG01R19/155
Inventor 王自发
Owner 句容市凯特电力电器有限公司
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