CN2241929Y

CN2241929Y - Bidirectional outlet PGL type low-voltage switchboard

Info

Publication number: CN2241929Y
Application number: CN 95209900
Authority: CN
Inventors: 方可
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-03
Filing date: 1995-05-03
Publication date: 1996-12-04
Anticipated expiration: 2005-05-03

Abstract

The utility model relates to a bidirectional outlet PGL type low-voltage switchboard, which is composed of an electrical distribution casing, a bus bar, an inlet wire, an outlet, a breaker and two isolation switches. The utility model is characterized in that the inlet segment and the outlet segment are in different bus bar planes and are connected to two different bus bars; the other end of the outlet can be bidirectional outlet. When applied as an inlet board, the utility model can feed simultaneously to switchboards of the same arrangement on left and right sides; when applied as a bus bar board, the utility model can feed to the switchboard which belongs the bus bar on the present segment on left and right sides. The utility model is provided with purposes of utilizing effective area of a switch chamber and balancing the load on the bus bar.

Description

The inlet wire of two-way outlet or female connection PGL type low-voltage distribution panel

The utility model belongs to the low-voltage distribution equipment in the power technology field, particularly power technology.

PGL type low-voltage distribution panel is the new product that country promotes in recent years, and this kind low-voltage distribution panel is common in various electric equipment handbooks, or in the product sample of manufacturing firm.Traditional low-voltage distribution panel is seen Fig. 1,2, by switchboard housing, inlet wire section 1, go out line segment 6, bus 3, circuit breaker 4 and two isolating switches 2.5 and form.Inlet wire section in the described switchboard housing, go out line segment in same bus plane, its shortcoming is: outlet can only be that Fig. 2 is seen in unidirectional, the traditional configuration of low-voltage distribution panel in switchgear house, from 1 ^#, 2 ^#Respectively draw one road inlet wire to 1 of switchgear house in two transformer rooms 7.13 ^#, 2 ^#On two sections buses 9.11.1 ^# Inlet wire screen 8,2 ^# Screen 12 has just adopted traditional scheme of electric power, and their mother joins screen 10, and promptly 11 ^#Screen then can only be arranged in certain section bus, as the end of one section bus.But regulation is arranged in the design discipline: when newly-built switchgear house of design, must leave the vacant position of some, so that switchgear house development from now on, the collocation method among Fig. 2 can only be 1 if will develop ^#The section bus 9 terminal switchboards that increase are as dotted line position.And 2 ^#On the section bus 11, because of be subjected to female connection screen can only folk prescription to the restriction of outlet, and can not be again toward the right increase switchboard, this kind disposes two shortcomings: 1.1 ^#, 2 ^#Load on two

sections buses

9,11 is uneven mutually; 2. distribution fixed interior 2 ^#Effective area under the section bus 11 can not make full use of, and forms waste.

The purpose of this utility model is to provide a kind of inlet wire or female connection PGL type low-voltage distribution panel with two-way outlet structure, and then reaches and make full use of the purpose of loading on switchgear house effective area and the balance bus.

The utility model by the bus in switchboard housing, the housing, inlet wire section, go out line segment, circuit breaker and two isolating switches and form; One end of switchboard inlet wire section is that transformer or another section bus are connected with power supply, and the other end is connected with an end that goes out line segment with two isolating switches by a circuit breaker of serial connection; It is characterized in that: the inlet wire section with go out line segment not on same bus plane, the other end that goes out line segment can be two-way output, described two-way output can be respectively with about other switchboard be connected.

The given switchboard of the utility model is used for can thoroughly improving in the switchgear house scheme of electric power of low-voltage distribution panel, also can be under multiple special occasions, transformer and distribution power station is arranged on freedom and flexibility ground, it has overcome traditional PGL inlet wire screen after receiving power supply, through electric switch, deficiency that can only unidirectional out-put supply.When the given switchboard of the utility model is used as the inlet wire screen, can receive external power source at inlet wire, through electric switch, can send simultaneously to the switchboard of the right and left of same arrangement, when joining the screen application as mother, can be after accepting the power supply that another section bus sends here, through electric switch, can be simultaneously under this section bus the switchboard on left and right both sides give.Like this, just can make the project planner when arranging that the station is joined in new low pressure change, can not be subjected to the restriction of occasion, be configured to freedom and flexibility.

The drawing explanation:

Fig. 1 is traditional one-in-and-one-out switchboard circuit diagram.

Fig. 2 is the traditional allocation plan of switchboard in switchgear house.

Fig. 3 is the utility model one-in-and-two-out switchboard circuit diagram.

Fig. 4 is the utility model allocation plan as female connection screen in switchgear house.

Fig. 5 is the allocation plan that the utility model is used as service entrance switch in switchgear house.

Fig. 6 is a structural representation of the present utility model.

Fig. 7 is the right diagrammatic sketch of structure of the present utility model.

Embodiment of the present utility model sees accompanying drawing: 1 is inlet wire, 2, the 5th among Fig. 3, isolating switch, the 3rd, three-phase bus, the 4th, circuit breaker; 7 is 1 among Fig. 4 ^#Transformer room, 8 is that the inlet wire screen, 9 of one section bus is 1 ^#Section bus, the 10th, female connection screen described in the utility model, 11 is 2 ^#Section bus, 12 is 2 ^#The inlet wire, 13 of section bus is 2 ^#The transformer room; 9 is two-way outputs of outlet among Fig. 6, can be connected with cutout screen or female bridge; In Fig. 4 owing to adopted the utility model to join screen, so can be 1 as mother ^#, 2 ^#Balanced growth load (seeing shown in the dotted line) on the section bus 9,11.Structure of the present utility model is seen Fig. 6,7: three-phase bus 9 is connected with three-phase outlet 1, and the three-phase outlet is connected with three-phase inlet wire 6 by three-phase isolation switch 2, three-phase breaker 4 and three-phase isolation switch 5 serial connection branch roads; Described three-phase outlet is two to output, is connected with the cutout screen of both sides respectively, and described inlet wire 6 15 stretches out after by the dish of switchboard, with outlet not on same bus plane, the 16th, as the inlet wire usefulness of inlet wire screen, the 17th, as the inlet wire usefulness of female connection screen, the 14th, before the dish of switchboard.

Fig. 5 is the another kind of common configuration scheme of low pressure transformer station of industrial enterprise, the switchboard the 8, the 12nd of the solid line part among the figure, the inlet wire screen of two-way outlet, an its circuit scheme is with accompanying drawing 3, but in traditional allocation plan, be that the isolating switch that leans against a wall replaces the inlet wire screen, and directly " T " is connected on one section bus and (see dotted portion among the figure).Two-way outlet screen of the present utility model substitutes traditional isolating switch can overcome traditional isolating switch inlet wire loop without any power-off protection and two shortcomings that can not realize that stand-by power supply drops into automatically.

Claims

A kind of inlet wire of two-way outlet or female connection PGL type low-voltage distribution panel, it is made up of the bus section, busbar section in distribution housing, the housing, inlet wire section, circuit breaker and two isolating switches; One end of switchboard inlet wire section is that transformer or another section bus are connected with power supply, and the other end is connected with an end that goes out line segment with two isolating switches by a circuit breaker of serial connection; It is characterized in that: the inlet wire section with go out line segment not in same bus plane, the other end that goes out line segment can be two-way output, described two-way output can be respectively with about other switchboard be connected.