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Power supply and distribution method for low-voltage system

A low-voltage system, power supply and distribution technology, applied in the direction of panel/switch station circuit device, busbar/line layout, etc., to achieve the effect of ensuring reliability, high electrical reliability, and easy installation

Inactive Publication Date: 2010-01-06
张兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a low-voltage system power supply and distribution method. By adopting the method of connecting main cables or main busbars with different cross-sectional areas according to the step change of carrying capacity, the load of main cables or main busbars is well solved. The problem of reasonable matching between the flow rate and the passing current

Method used

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  • Power supply and distribution method for low-voltage system
  • Power supply and distribution method for low-voltage system
  • Power supply and distribution method for low-voltage system

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Embodiment Construction

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] figure 1 Shown in is the schematic diagram of the power distribution of the segmented variable-diameter main cable of the embodiment to multiple power consumption units Figure 1 . In this power distribution embodiment, the main circuit breaker switch 1 feeds out a main cable 2 from the power supply, and one end of one or more branch cables 4 is connected to the main cable 2 through a puncture clamp 3, and the branch cables 4 The other end is connected to the branch circuit breaker 5, which is connected to the electric load 6; the main cable 2 branched by the puncture clamp 3 passes through the measurement box 7 and connects to the main cable 8 with a smaller cable cross-sectional area through the cable intermediate connection terminal 16 One end of another or more branch cables 10 is connected to the main cable 8 with a smaller cross-sectional ...

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Abstract

The invention belongs to the field of low-voltage system power supply and distribution, and solves the problem that the current-carrying capacity of main cables or main buses and passing current fail to complete full path reasonable matching in the mode that one power supply loop is connected with a plurality of electric units. By adopting the mode that the main cables or the main buses with different cross-sectional areas are connected according to the ladder change of the current-carrying capacity, the problem that the current-carrying capacity of the main cables or the main buses and the passing current have reasonable matching is better solved. The system is provided with a back-segment reducing main cable or main bus; the main cable or the main bus is connected with a plurality of electric units; the current-carrying capacity (cross-sectional area) of a cable or a bus on the full path of the main cable or the main bus and the passing current have reasonable matching; simultaneously, the reducing position of the main cable or the main bus is provided with a measuring device for segment measurement of the cable or the bus with different current-carrying capacity in the same loop; and finally, a main breaker is used for integrated protection. The method not only saves materials and reduces the production cost, but also can ensure that the main breaker timely actuates in the event of the failure of the main cable or the main bus to meet the requirement of power supply reliability. Through the display of the measuring device, the scope of the failure can be judged accurately for the convenience of repair.

Description

technical field [0001] The invention relates to the technical field of a low-voltage power supply and power distribution system. Background technique [0002] In the known technology, the low-voltage power supply mode is divided into the following three types if one power supply circuit is used to connect multiple power consumption units: one is to connect a pre-branch cable to the outlet circuit breaker, and each branch cable is connected to a plurality of power consumption units. ; The other is that the outlet circuit breaker is connected to a main cable, and each branch cable is connected to the main cable through a piercing wire, and each branch cable is connected to multiple power units; the third is that the outlet circuit breaker is connected to a dense busbar Each branch cable is connected to the busbar by plugging the switch box on the busway, and each branch cable is connected to multiple power units. [0003] The disadvantage of the above power supply methods is ...

Claims

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Application Information

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IPC IPC(8): H02B1/24H02B1/20
Inventor 张兵
Owner 张兵
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