CN202678818U - Box type fixed AC (alternating current) metal-enclosed switchgear - Google Patents

Box type fixed AC (alternating current) metal-enclosed switchgear Download PDF

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Publication number
CN202678818U
CN202678818U CN 201220337469 CN201220337469U CN202678818U CN 202678818 U CN202678818 U CN 202678818U CN 201220337469 CN201220337469 CN 201220337469 CN 201220337469 U CN201220337469 U CN 201220337469U CN 202678818 U CN202678818 U CN 202678818U
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CN
China
Prior art keywords
chamber
isolating switch
contact
breaker
bus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201220337469
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Chinese (zh)
Inventor
林顺利
刘辉
谭文开
林海鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daya Electric Group Co Ltd
Original Assignee
Daya Electric Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daya Electric Group Co Ltd filed Critical Daya Electric Group Co Ltd
Priority to CN 201220337469 priority Critical patent/CN202678818U/en
Application granted granted Critical
Publication of CN202678818U publication Critical patent/CN202678818U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a box type fixed AC metal-enclosed switchgear, which comprises a box body and separator plates. The box body is divided by an upper separator plate and a lower separator plate into four parts, namely, a breaker chamber, a bus-bar chamber, a cable chamber and a low-voltage chamber. A breaker is arranged inside the breaker chamber. An upper contact of the breaker is connected with a main bus bar inside the bus-bus chamber through an upper isolation switch while a lower contact of the breaker is connected with a static contact of a lower isolation switch. The static contact of the upper isolation switch is arranged on the upper separator plate. The static contact of the lower isolation switch is arranged on the lower separator plate. The switchgear provided in the utility model has the advantages of small volume, small installation area, and switch board room cost decrease, etc. The switchgear is suitably applied in a 12-kilovolt three-phase AC electric power system as a switch device.

Description

Box fixed ac metal closing switch gear
Technical field
The utility model relates to a kind of power switchgear, particularly about a kind of box fixed ac metal closing switch gear.The utility model is applicable to 12KV three-phase ac power system.
Background technology
Box fixed ac metal closing switch gear is used for 12KV three-phase ac power system, as accepting and distributing electric energy and circuit is controlled, protected and supervises.Its cabinet forms breaker chamber, bus-bar room, cable vault and low-pressure chamber four parts by baffle for separating.Circuit breaker indoor location circuit breaker, two contacts of circuit breaker are connected with lower isolating switch with upper isolating switch respectively.In existing box fixed ac metal closing switch gear, fixed contact of isolating switch is installed on the cabinet top cover on it, the fixed contact of lower isolating switch is installed on the cabinet rear plate of cabinet cable vault, have that equipment volume is large, occupation area of equipment is large, cause the high shortcoming of high voltage power distribution room cost.
Summary of the invention
The purpose of this utility model is the shortcoming that exists for prior art, provides that a kind of volume is little, erection space is little, can reduce the box fixed ac metal closing switch gear of power distribution room cost.
The technical solution of the utility model comprises cabinet and dividing plate, cabinet becomes breaker chamber, bus-bar room, cable vault and low-pressure chamber four parts by upper spacer and lower clapboard isolation, circuit breaker is installed in the breaker chamber, its upper contact head is connected by the interior main bus bar of upper isolating switch and bus-bar room, its lower contact is connected with the fixed contact of lower isolating switch, the fixed contact that mainly is upper isolating switch is installed on the upper spacer, and the fixed contact of lower isolating switch is installed on the lower clapboard.
The fixed contact that the utility model has the advantages that isolating switch is installed on the upper spacer, and the fixed contact of lower isolating switch is installed on the lower clapboard, has a volume little, and erection space is little, reduces the characteristics such as power distribution room cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Box fixed ac metal closing switch gear as shown in Figure 1, comprise cabinet 1 and dividing plate, cabinet 1 becomes breaker chamber C, bus-bar room A, the D of cable vault and low-pressure chamber B four parts by upper spacer 13 and lower clapboard 14 isolation, circuit breaker 7 is installed in the breaker chamber C, the upper contact head of circuit breaker 7 is connected by the interior main bus bar 12 of upper isolating switch 10 and bus-bar room A, the lower contact of circuit breaker 7 is connected with the fixed contact of lower isolating switch 3, the fixed contact of upper isolating switch 10 is installed on the upper spacer 13, and the fixed contact of lower isolating switch 3 is installed on the lower clapboard 14.
An end of upper connecting rod 9 is hinged in the moving contact of upper isolating switch 10 and the operating mechanism 8, and an end of lower link 6 is hinged in the moving contact of lower isolating switch 3 and the operating mechanism 8, and operating mechanism 8 is fixedly mounted on the cabinet 1.Operating mechanism 8 is shaped with " maintenance " locking bit, " disjunction locking " position and " work " locking bit, changes by operating grip.The fixed contact of upper isolating switch 10 is connected with main bus bar 12 by branch bar 11, branch's busbar between the lower contact of circuit breaker 7 and the fixed contact of lower isolating switch 3 is provided with current transformer 5, on the lower clapboard 14 in the D of cable vault and the cabinet 1 low plate voltage sensor 4 and lightning arrester 2 is installed respectively.
Operation principle: when maintenance or power failure operation, manual or electronic separately circuit breaker 7, operating mechanism 8 hand switches are pushed " disjunction locking " position, to drive upper isolating switch 10 separating brakes by upper connecting rod 9 in the operating grip update mechanism 8, drive lower isolating switch 3 separating brakes by lower link 6, operating mechanism 8 hand switches are pushed " maintenance " position from " disjunction locking " position, then open the door and overhaul.When after maintenance is complete, sending electricity, close first the cabinet door, operating mechanism 8 hand switches are pushed " disjunction locking " position from " maintenance " position, close a floodgate driving upper isolating switch 10 by upper connecting rod 9 in the operating grip update mechanism 8, driving lower isolating switch 3 by lower link 6 closes a floodgate, again operating mechanism 8 hand switches are pushed " work " position from " disjunction locking " position, the manual or electronic circuit breaker 7 that closes is finished and is sent the electricity operation.

Claims (2)

1. box fixed ac metal closing switch gear, comprise cabinet (1) and dividing plate, cabinet (1) becomes breaker chamber (C) by upper spacer (13) and lower clapboard (14) isolation, bus-bar room (A), cable vault (D) and low-pressure chamber (B) four parts, circuit breaker (7) is installed in the breaker chamber (C), the upper contact head of circuit breaker (7) is connected by the interior main bus bar (12) of upper isolating switch (10) and bus-bar room (A), the lower contact of circuit breaker (7) is connected with the fixed contact of lower isolating switch (3), the fixed contact that it is characterized in that isolating switch (10) is installed on the upper spacer (13), and the fixed contact of lower isolating switch (3) is installed on the lower clapboard (14).
2. box fixed ac metal closing switch gear according to claim 1, an end that it is characterized in that upper connecting rod (9) in the moving contact of isolating switch (10) and the operating mechanism (8) is hinged, an end of lower link (6) is hinged in the moving contact of lower isolating switch (3) and the operating mechanism (8), and operating mechanism (8) is fixedly mounted on the cabinet (1).
CN 201220337469 2012-07-09 2012-07-09 Box type fixed AC (alternating current) metal-enclosed switchgear Active CN202678818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220337469 CN202678818U (en) 2012-07-09 2012-07-09 Box type fixed AC (alternating current) metal-enclosed switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220337469 CN202678818U (en) 2012-07-09 2012-07-09 Box type fixed AC (alternating current) metal-enclosed switchgear

Publications (1)

Publication Number Publication Date
CN202678818U true CN202678818U (en) 2013-01-16

Family

ID=47499694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220337469 Active CN202678818U (en) 2012-07-09 2012-07-09 Box type fixed AC (alternating current) metal-enclosed switchgear

Country Status (1)

Country Link
CN (1) CN202678818U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103683017A (en) * 2013-12-31 2014-03-26 昆山振宏电子机械有限公司 Box type switchgear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103683017A (en) * 2013-12-31 2014-03-26 昆山振宏电子机械有限公司 Box type switchgear
CN103683017B (en) * 2013-12-31 2016-05-18 昆山振宏电子机械有限公司 Box switch cubicle

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