Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch

A technology of load switch and automatic transfer, applied in the direction of power device inside the switch, multi-phase network asymmetry reduction, multi-phase network elimination/reduction of asymmetry, etc., can solve problems such as inconvenient installation and large products, and achieve line reduction loss, high power reliability, and convenient use

Inactive Publication Date: 2013-11-20
秦宇翔 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The product is relatively large and inconvenient to install, so we are looking for a better way to solve such problems

Method used

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  • Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch
  • Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch
  • Balanced leveling method for three-phase loads of low-voltage power network and automatic load transferring switch

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] like figure 1 As shown, the three-phase line load of the low-voltage power grid is directly powered by the main switch 1, and each phase load of the three-phase low-voltage power grid is divided into a base load 2 and a transfer load 3, and the base load 2 and the transfer load 3 are either phase-to-phase loads or single-phase Load, 4 is an automatic transfer load switch, and the automatic transfer load switch 4 bears the transfer load 3 and transfers between phases.

[0020] like figure 2 As shown, the automatic transfer load switch described in a low-voltage power grid three-phase load equalization method, the automatic transfer load switch 4 is an electromagnetic switch, which contains an electromagnetic mechanism 5, and the transmission rod stretches left and right in the electromagnetic mechanism 5, The transmission rod is composed of a stainless steel r...

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Abstract

The invention provides a balanced leveling method for three-phase loads of a low-voltage power network and an automatic load transferring switch. The balanced leveling method is used for solving the unbalanced problem of three-phase current of the low-voltage power network, and the automatic load transferring switch relates to a matched using appliance for the power network. In order to solve the unbalanced problem of three-phase current of the low-voltage power network, each phase load of the three phases of the low-voltage power network is divided into a basic load and a transferring load. The automatic load transferring switch comprises an electromagnetic mechanism, wherein a drive rod stretches out and draws back leftwards and rightwards in the electromagnetic mechanism; the drive rod comprises a stainless steel rod in the middle and insulating rods at two ends, mechanical bistable state lock catches are mounted on the stainless steel rod, and metal brackets are mounted on the insulating rods at two ends of the drive rod; and moving touches are mounted on the two metal brackets respectively and correspond to two insulating brackets which are provided with static contacts respectively. According to the method, the unbalanced condition of three phases of the distribution network can be improved greatly, and the output of a distribution transformer is reasonably used according to the power supply requirements.

Description

technical field [0001] The three-phase load equalization method of the low-voltage power grid is a method for leveling the unbalanced three-phase current of the power grid. The automatic transfer load switch is related to the supporting electrical appliances used in the low-voltage power grid, especially the switching appliances used for the unbalanced leveling of the three-phase current in the low-voltage power grid. In particular, a three-phase load equalization method for a low-voltage power grid and an automatic transfer load switch. Background technique [0002] As we all know, the three-phase current imbalance of the low-voltage power grid has always been one of the main problems that plague the power supply unit. The safety and reliability of the low-voltage distribution network directly affect the production and life of power users, and also affect the safety and security of power supply equipment in the power sector. own economic benefits. The distribution netw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/28H02J3/26
CPCY02E40/50
Inventor 秦宇翔李明明王佑民褚新民杨建宇李志学李洁郭琦郭惠郭媛媛王书捷陈卫红冯磊
Owner 秦宇翔
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