Switch cabinet with medium-voltage and high-voltage potential indicator

A live indicator, medium and high voltage technology, applied in the field of switch cabinets, can solve the problems of operator negligence, lack of medium and high voltage live indicators in switch cabinets, and accidents, etc., to ensure mechanical strength, improve timeliness and accuracy, avoid the effect of causing an accident

Inactive Publication Date: 2013-04-17
SICHUAN LANXUNBAOER ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a switchgear with a medium-high voltage live indicator, which solves the problem that the previous switchgear lacked a special medium-high voltage live indicator, which caused operator negligence and even caused accidents

Method used

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  • Switch cabinet with medium-voltage and high-voltage potential indicator
  • Switch cabinet with medium-voltage and high-voltage potential indicator
  • Switch cabinet with medium-voltage and high-voltage potential indicator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 and Figure 8 As shown, the present invention includes a cabinet body 1, the bottom of the cabinet body 1 is provided with a grounding main bus bar 20, and the inner space of the cabinet body 1 is divided into four units by a partition 18, which are respectively a circuit breaker handcart room 3 and a relay instrument room 4. The cable room 17 and the busbar room 2, the circuit breaker handcart room 3 is equipped with a circuit breaker handcart 10 and the guide rail 11 matched with the circuit breaker handcart 10, and the cable room 17 is equipped with a grounding switch 15 and cables 16, The top of the cable chamber 17 is provided with a current transformer 21, the current transformer 21 is connected with the cable 16, the main busbar 6 and the busbar bushing 7 are arranged in the busbar chamber 2, and the main busbar 6 passes through the branch small busbar 8 and the static contact box 9 Fixed, the static contact box 9 is provided with a...

Embodiment 2

[0035] Such as figure 1 , image 3 and Figure 8 As shown, this embodiment is basically the same as Embodiment 1, the difference is that the light emitting assembly 32 of this embodiment includes three groups of LEDs 37, the LEDs 37 within a group are connected in series, and the LEDs 37 between groups are connected in parallel.

Embodiment 3

[0037] Such as figure 1 , Figure 4 and Figure 8 As shown, this embodiment is basically the same as Embodiment 1, except that the rectification unit 30 of this embodiment includes three diodes 35 connected in series in sequence, and each diode 35 is connected in parallel with a shunt resistor 36 .

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PUM

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Abstract

The invention discloses a switch cabinet with a medium-voltage and high-voltage potential indicator. The switch cabinet comprises a cabinet body (1), wherein the bottom of the cabinet body (1) is provided with a grounding main bus (20), the inner space of the cabinet body (1) is separated into four units by a separating plate (18), the four units are respectively a circuit breaker cart chamber (3), a relay instrument chamber (4), a cable chamber (17) and a bus chamber (2), the inside of the cable chamber (17) is also provided with a medium-voltage and high-voltage potential indicator (13) and a lightning arrester (14), the medium-voltage and high-voltage potential indicator (13) is connected with a cable (16), the lightning arrester (14) is connected with a grounding switch (15), and the top part of the cabinet body (1) is provided with three pressure release devices (19). Through the structure, the switch cabinet has the advantages that the spreading accidents in the switch cabinet are avoided, the overhigh pressure in the switch cabinet is avoided, the potential condition of a medium-voltage and high-voltage loop is timely and reliably displayed, and the operation safety of the switch cabinet is improved.

Description

technical field [0001] The invention relates to a switch cabinet, in particular to a switch cabinet with a middle and high voltage live indicator. Background technique [0002] With the continuous development of production enterprises and power supply management, switchgear, as a kind of electrical equipment, has been used more and more frequently, and the requirements for switchgear are also getting higher and higher. At present, the general switchgear includes circuit breaker handcart room, relay instrument room, cable room and busbar room, etc. The outside line first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Some There are also high-voltage chambers, low-voltage chambers and high-voltage buses, such as power plants, and some are equipped with low-cycle load shedding to protect major equipment. Generally speaking, there are some problems in the current switchgear. For example, when the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/167H02B11/24G01R19/00
Inventor 李胜峰
Owner SICHUAN LANXUNBAOER ELECTRONICS TECH
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