CN200997496Y

CN200997496Y - Movable high-voltage switching closet with shunt

Info

Publication number: CN200997496Y
Application number: CN 200620029168
Authority: CN
Inventors: 刘宗信; 彭占江
Original assignee: HONGXING ELECTRIC APPLIANCES APPARATUS FACTORY CHANGCHUN
Current assignee: Changchun Hongxing Electrical Appliance Equipment Co., Ltd.
Priority date: 2006-08-09
Filing date: 2006-08-09
Publication date: 2007-12-26
Anticipated expiration: 2016-08-09

Abstract

The utility model relates to a removed high voltage switch cabinet with a bypass which is characterized in that the cabinet is composed of a bypass cabinet and a feed-out cabinet, wherein the bypass cabinet comprises a bus line chamber, a breaker handcart chamber, a relay instrument chamber and a bypass chamber; the bus line chamber is provided with a main bus line, a branch bus line, a breaker static contact and a current mutual inductor; the bus line and the current mutual inductor are respectively connected with the breaker static contact; the breaker dynamic contact is connected with the breaker handcart arranged in the handcart chamber; the other end of the current mutual inductor is arranged on the bypass bus line of the bypass chamber by the separation switch; the feed-out cabinet comprises a bus line chamber, a breaker handcart chamber, a relay instrument chamber, a current mutual inductor chamber, a cable chamber and a bypass chamber; the bus line chamber is provide with a main bus line, a branch bus line, a breaker static contact; the current mutual inductor chamber is provided with a mutual inductor; the bus line and the current mutual inductor are respectively connected with the breaker static contacts; the breaker dynamic contact is connected with the breaker handcart arranged in t he handcart chamber; the other end of the current mutual inductor is connected with the feed-out cable arranged in the cable chamber and the separation switch arranged in the bypass chamber by the separation switch; and the separation switch is then connected with the bypass bus line.

Description

A kind of moveable high-voltage switchgear with bypass

Technical field

The utility model belongs to appliance field, is specifically related to switch cubicle.

Background technology

The existing medium and small generator that is used for the power plant send electricity, industrial and mineral enterprises and institutions distribution, electric power system secondary to be subjected to electricity or send the high-tension switch cabinet of the startup of electricity and large-scale high-tension motor, mostly belong to single busbar system and comprise casing, the bus-bar room that isolates in the casing, circuit breaker cart chamber, cable vault, relay control room.At bus-bar room main bus bar, branch bar, circuit breaker fixed contact, current transformer are installed.Circuit breaker cart is installed in the handcart chamber.Cable, earthed switch, earth bus, lightning arrester etc. are installed by the cable vault.Though aforesaid switch cubicle can satisfy the power supply instructions for use of electric power system, but switchgear is when breaking down and overhaul, need stop power supply to power consumption equipment, this to some power supply reliability height, need the place of uninterrupted power supply when switching devices is overhauled, as hospital, airport, station, oil field etc., can cause the long period to have a power failure.

Summary of the invention

The purpose of this utility model provides a kind of moveable high-voltage switchgear with bypass, overcomes existing switch cubicle above shortcomings.

Switch cubicle of the present utility model by the bypass cabinet with feed out group and become, bypass cabinet wherein comprises bus-bar room, circuit breaker cart chamber, relay control room, bypass chamber, bus-bar room is installed main bus bar, branch bar, circuit breaker fixed contact, current transformer, the bus summation current transformer connects the circuit breaker fixed contact respectively, the circuit breaker cart of moving contact of breaker through being installed in the handcart chamber connects, and the current transformer other end connects the hospital bus bar that is installed in bypass chamber through isolating switch; Feed out cabinet and comprise bus-bar room, circuit breaker cart chamber, relay control room, current transformer chamber, cable vault, bypass chamber.Bus-bar room is installed main bus bar, branch bar, circuit breaker fixed contact, instrument transformer is installed in the current transformer chamber, the bus summation current transformer connects the circuit breaker fixed contact respectively, the circuit breaker cart of moving contact of breaker through being installed in the handcart chamber connects, the current transformer other end is mounted on the feed-out cable and the isolating switch that is installed in bypass chamber of cable vault through isolating switch, isolating switch connects hospital bus bar again.

Use of the present utility model is, feeds out cabinet when normally moving, and isolating switch, the feed-out cable of electric current between circuit breaker, circuit breaker output and the feed-out cable of main bus bar, connection transported to the user.The bypass cabinet breaker, hospital bus bar does not have.State path cashier's office in a shop and break down and need maintenance when certain feeds out, cutting off has fault to feed out circuit breaker and isolating switch, isolating switch and the ground connection of cabinet.Closure feeds out the by-pass switch in the cabinet, connects hospital bus bar and feed-out cable.Connect bypass cabinet breaker and isolating switch, make hospital bus bar charged and, continue power supply to electricity consumption department through bypass isolating switch guiding feed-out cable

Use good effect of the present utility model to be: the switchgear (containing current transformer) that feeds out cabinet at day-to-day operation breaks down and when overhauling, switch in the closed bypass cabinet, connect main bus bar and hospital bus bar, the closed again bypass isolating switch that feeds out in the cabinet, keep feeding out the uninterrupted power supply of cabinet, eliminate the infringement of bringing for power consumption equipment and electricity consumption department because of the fault of switch cubicle.

Description of drawings

Fig. 1 is a bypass cabinet schematic diagram;

Fig. 2 is for feeding out the cabinet schematic diagram;

Fig. 3 is the utility model schematic diagram.

Embodiment

Provide embodiment of the present utility model below in conjunction with accompanying drawing.

One, makes bypass cabinet P.

Manufacturing comprises existing switch cubicle part and increases the casing 1 of bypass chamber that installation and connected mode installation by existing switch cubicle in casing connect main bus bar 2, vacuum circuit-breaker 3, circuit breaker cart 4, current transformer 5, Displaying Meter 6 as shown in Figure 1.At bypass chamber dress hospital bus bar 7 and the isolating switch 8 that is connected vacuum circuit-breaker and hospital bus bar.

Two, manufacturing feeds out cabinet K.

Make and comprise existing switch cubicle bus-bar room a, circuit breaker cart chamber b, current transformer chamber c, the d of relay control room, the e of cable vault as shown in Figure 1, the casing 9 of increase bypass chamber f.By mounting means in the past main bus bar 2, circuit breaker fixed contact 10 are installed in bus-bar room a; Circuit breaker cart 11 is installed in the b of handcart chamber; Relay and Displaying Meter 12 are installed in the relay control room.Feed-out cable 13, earth bus 14 are installed in the cable vault.At current transformer chamber dress instrument transformer 15, lightning arrester 16.The isolating switch 17 that connects feed-out cable 13 and circuit breaker output is installed between current transformer chamber e and the c of cable vault.In bypass chamber hospital bus bar 7 is installed, is connect bypass isolating switch 18 between hospital bus bar 7 and the feed-out cable 13.

Three, combination bypass cabinet (P) and feed out cabinet (K).

A bypass cabinet P is fed out cabinet K with one or more be parallel on main bus bar and the hospital bus bar, promptly finish enforcement of the present utility model.

Claims

1, a kind of moveable high-voltage switchgear with bypass, it is characterized in that: by the bypass cabinet with feed out group and become, bypass cabinet wherein comprises bus-bar room, circuit breaker cart chamber, relay control room, bypass chamber, bus-bar room is installed main bus bar, branch bar, circuit breaker fixed contact, current transformer, the bus summation current transformer connects the circuit breaker fixed contact respectively, the circuit breaker cart of moving contact of breaker through being installed in the handcart chamber connects, and the current transformer other end connects the hospital bus bar that is installed in bypass chamber through isolating switch; Feed out cabinet and comprise bus-bar room, circuit breaker cart chamber, relay control room, current transformer chamber, cable vault, bypass chamber, bus-bar room is installed main bus bar, branch bar, circuit breaker fixed contact, instrument transformer is installed in the current transformer chamber, the bus summation current transformer connects the circuit breaker fixed contact respectively, the circuit breaker cart of moving contact of breaker through being installed in the handcart chamber connects, the current transformer other end is mounted on the feed-out cable and the isolating switch that is installed in bypass chamber of cable vault through isolating switch, isolating switch connects hospital bus bar again.