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Indoor high-voltage charge display device

A technology of live display and internal high voltage, applied in instruments, measuring electrical variables, measuring current/voltage, etc., can solve the problem of short service life of light-emitting elements, and achieve the effect of solving short service life and ensuring normal nuclear phase.

Inactive Publication Date: 2010-05-12
蔡慧军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned defects in the prior art, the present invention provides an indoor high-voltage charged display with a novel structure, which can effectively solve the problem of short service life of light-emitting elements, and can also provide voltage The matching electrical signal source realizes the dual function of displaying high-voltage live and providing the electrical signal source for the existing phase nuclear device

Method used

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  • Indoor high-voltage charge display device

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Embodiment Construction

[0011] see figure 2 , the display circuit is provided with three signal sampling points A, B, and C according to the phase sequence (in practical applications, the three signal sampling points A, B, and C are connected to the signal output terminals of the sensors placed in front of the display). The sampling points of the three signals A, B, and C are electrically connected to the negative poles of the regulator tubes DW1, DW2, and DW3, and the ground wire D is connected to pins 2 of the AC input terminals D1-D4 of the rectifier circuit, pins 2A of D5-D8, and pins D9- The 2B pin of D12 is connected. The nuclear phase sockets a, b, c are electrically connected to the three signal sampling points A, B, C and the negative poles of the regulator tubes DW1, DW2, DW3. The anodes of the regulator tubes DW1, DW2, and DW3 are respectively connected to pin 1 of the AC input terminals D1-D4 of the full-bridge rectifier circuit, pin 1A of D5-D8, and pin 1B of D9-D12.

[0012] The capa...

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Abstract

Disclosed is a household high voltage electrification display device which comprises three full wave regulating circuits, of which one input end is connected to ground, the other input end is connected with the cathodes of three voltage regulating diodes, the anodes of the three voltage regulating diodes are connected with phase order signal sampling points; the device also comprises a current limiting resistor, a voltage regulating diode and a light-emitting diode which are connected in sequence and are parallel connected with a wave filtering capacity, and then are parallel connected betweenthe anode and cathode of the full wave regulating circuit.

Description

technical field [0001] The invention relates to a display used in indoor and outdoor high-voltage ring network cabinet equipment such as SM6 and RM6 with a rated voltage of 10KV and a frequency of 50HZ to reflect the electrification status of the high-voltage circuit and provide a signal source for a matched phase nuclear device. Background technique [0002] In the known public technology, there are two functions of the display installed in RM6, SM6 and other indoor and outdoor high-voltage ring network cabinet equipment: one is to use three neon bulbs adopted on its own circuit as light-emitting elements to display whether the high-voltage ring network cabinet equipment has There is high-voltage electricity, and the second is to provide three circuit sampling nodes for the external phase nuclear device. After the phase nuclear device obtains the voltage signal from the sampling node, the three neon bulbs on the phase nuclear device emit light to display the phase sequence....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/155
Inventor 蔡慧军
Owner 蔡慧军
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