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Switch, on-load phase-change switch and online phase-change control device

A commutation switch and phase control technology, which is applied in the field of low-voltage commutation, can solve the problems of short circuit danger, precise setting of trigger point, etc., and achieve low cost effect

Active Publication Date: 2016-05-04
BEIJING PINGKAI INTELLIGENT ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the actual power load is constantly changing and the trigger point cannot be accurately set according to the current situation.
Therefore, the sudden change of the load after the trigger scheme is determined is likely to cause the risk of short circuit

Method used

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  • Switch, on-load phase-change switch and online phase-change control device
  • Switch, on-load phase-change switch and online phase-change control device
  • Switch, on-load phase-change switch and online phase-change control device

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Embodiment Construction

[0031]The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0032] refer to figure 2 , the specific embodiment of the present invention provides a switch 100, the switch 100 includes a first moving contact assembly 110, a second moving contact assembly 120, a first chute 130, a second chute 140, a first main contact group 150 , the second main contact group 160 , the first auxiliary contact group 170 and the second auxiliary contact group 180 . like figure 2 As shown, in a preferred implementation mode of this specific embodiment, the first main contact group 150 and the second main contact group 160 of the switch 100 are arranged on one side of the switch 100, and the switch 100 The first auxiliary contact group 170 and the second auxiliary contact group 180 are disposed on the other side of the switch 100 .

[0033] Each contact group consists of two contacts, such as figure 2 ...

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Abstract

The invention provides a switch, an on-load phase-change switch and an online phase-change control device. The switch comprises a first moving contact assembly, a second moving contact assembly, a first slide slot, a second slide slot, a first main contact group, a second main contact group, a first auxiliary contact group and a second auxiliary contact group; the first moving contact assembly and the second moving contact assembly are respectively arranged in the first slide slot and the second slide slot in a slide mode; the first moving contact assembly and the second moving contact assembly respectively control the switch-on or the switch-off of the contact groups distributed at two sides of the first slide slot and the second slide slot through sliding in the first slide slot and the second slide slot. The switch, the on-load phase-change switch and the online phase-change control device provided by the invention are advantaged by long service life, stable performance and successful on-load phase-change. Failed on-load phase-change resulted from load resistance, capacitance and sensibility changes of power electronic instruments such as thyristors is avoided by using a mechanical structure.

Description

technical field [0001] The invention relates to the technical field of low-voltage commutation, in particular to a switch applied to low-voltage commutation, an on-load commutation switch and an online commutation control device. Background technique [0002] The unbalanced three-phase load in the power system will cause a substantial increase in the loss of power supply lines and transformers and other equipment, and even burn out the equipment. The current solutions include: 1. Balance the planning load in advance. 2. Perform three-phase unbalance adjustment at the same time of reactive power compensation. 3. Use commutation switches to adjust three-phase loads in a distributed manner. However, the load of residential users and even factories and mines is often unpredictable and irregular. The three-phase unbalance adjustment during reactive power compensation can only improve the unbalance situation at the upper level of the compensation installation point, and has no ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/00
CPCH01H9/0011H01H9/0027H01H2009/0061
Inventor 魏晓熙
Owner BEIJING PINGKAI INTELLIGENT ELECTRIC
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