CN2470995Y

CN2470995Y - Low voltage distribution box

Info

Publication number: CN2470995Y
Application number: CN 01208210
Authority: CN
Inventors: 李金村; 沈春夏
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-02
Filing date: 2001-03-02
Publication date: 2002-01-09
Anticipated expiration: 2011-03-02

Abstract

The utility model discloses a wiring structure for a low-voltage distribution box which is mainly providing a switch and a capacitors module on the low-voltage distribution box of a plant or a building, and connecting to an internal power at an input side of the switch which passing an external line, then to a user electric meter and finally outputting, and connecting to an electric equipment at an output side, then connecting in parallel with a plurality of capacitors at the input side of the switch. The capacitors can be charged when inputting the internal power and an invalid power phase difference of the internal power can be amended, thus a power factor of the electric equipment can be increased by the capacitors, a voltage regulation can be improved and an electric loss is reduced to save electric charges.

Description

Low-tension distribution box

The utility model relates to a kind of low-tension distribution box, refers to that especially a kind of capacitor that is provided with to reduce current loss, improves the low-tension distribution box of power factor.

At present, electric power system mainly is by the power plant generating, is carried by cable, through the transformer step-down, inputs to the user again.And with regard to factory or building, generally be that distribution box is set, elements such as no-fuse switch, starter are set in distribution box, exterior line power supply is connected to electric supply meter, export machine, the electric light in factory, building again to through interior lines power supply distribution box ... Deng power consumption equipment.

Yet, what power consumption equipment used is the active power part of power supply, can not be used by power consumption equipment with the inefficient power part of active power tool phase difference, thereby cause the low situation that reaches with electric loss of electric power factor, and more will significantly increase the energy charge that makes of power consumption equipment.

In view of the foregoing, the purpose of this utility model provides and a kind ofly improves power factor of electric network, reduces cost, and saves the low-tension distribution box of the electricity charge.

For achieving the above object, the utility model adopts following design: a kind of low-tension distribution box is provided with switch, capacitor assembly in the low-tension distribution box; The switch input side connects the interior lines power supply of being exported again by outside line to electric supply meter; Outlet side links to each other with power consumption equipment; At switch input side some capacitors in parallel, this capacitor can be when low-tension distribution box inserts input interior lines power supply the inefficient power phase difference of charging and revisal interior lines power supply, promote the effect factor of power consumption equipment by capacitor, improve voltage regulation, and can significantly lower with the electric loss and the saving electricity charge.

Because the utility model adopts above design, at low-tension distribution box power supply input side some capacitors in parallel, so, improve circuit effect factor, save the electricity charge, reduce current loss, improve voltage regulation etc.

Further specify below in conjunction with the drawings and specific embodiments.

Fig. 1 is the utility model embodiment distribution box distribution schematic diagram.

Fig. 2 is the utility model embodiment distribution box conspectus.

As shown in Figure 1 and Figure 2, the utility model mainly is that switch 11, capacitor 12 are set in factory or building low-tension distribution box 1, and switch 11 input sides 111 connect the interior lines power supply of being exported again to electric supply meter 5 by outside line 42, and outlet side 112 is connected to power consumption equipment 3;

Again, at switch 1 input side 111 some capacitors 12 in parallel, tool discharge resistance 1 21 in this capacitor 12, so that emit residual charge with capacitor for voltage protection 12 when interior lines power supply 2 has a power failure, and can prevent people from touching capacitor 12 and cause danger, because capacitor 12 is arranged in the distribution box 1, can prevent that people from touching capacitor 12 situations again;

Again, this capacitor 12 can be when low-tension distribution box 1 and input interior lines power supply 2, the inefficient power phase difference of charging and revisal interior lines power supply 2, and the feasible inefficient power of importing interior lines power supply 2 partly forms active power and is used by power consumption equipment 3; Promote the effect factor of power consumption equipment and improve voltage regulation by capacitor 12, and can significantly lower with the electric loss and the saving electricity charge.

By the above, the utility model can improve circuit effect factor, saves the electricity charge, reduces current loss, improve effects such as voltage regulation.

Claims

1, a kind of low-tension distribution box is characterized in that: be provided with switch, capacitor assembly in the described low-tension distribution box; The switch input side connects the interior lines power supply of being exported again by outside line to electric supply meter; Outlet side links to each other with power consumption equipment; At switch input side some capacitors in parallel, this capacitor can be when low-tension distribution box inserts input interior lines power supply the inefficient power phase difference of charging and revisal interior lines power supply, promote the effect factor of power consumption equipment by capacitor, improve voltage regulation, and can significantly lower with the electric loss and the saving electricity charge.