CN205508705U - Vacuum load switch on post - Google Patents
Vacuum load switch on post Download PDFInfo
- Publication number
- CN205508705U CN205508705U CN201620021846.8U CN201620021846U CN205508705U CN 205508705 U CN205508705 U CN 205508705U CN 201620021846 U CN201620021846 U CN 201620021846U CN 205508705 U CN205508705 U CN 205508705U
- Authority
- CN
- China
- Prior art keywords
- load switch
- vacuum
- case lid
- main circuit
- loose joint
- 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.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a vacuum load switch on post, which comprises an outer shell, rise gallows (6), main circuit and operating mechanism (10), the shell includes box (7), case lid (13) and encirclement the mechanism cover (14) operating device (10) outside of connection on box (7), the main circuit is including cut -offfing three phase current's vacuum interrupter (8) and isolation port (3) of establishing ties with it, punching current transformer (2), operating device (10) include the automatic operation device that is used for manually operation's operating handle (11) and has independent source of power, rise gallows (6) of fixed mounting on case lid (13) include the base, wire rope (17), cross arm (22) and two sets of loose joint bolts of fixing on the base are organized. The beneficial effect of the utility model: convenient operation, the reaction is nimble, and sealing performance is good, keeps apart and the insulating properties height safe and reliable.
Description
Technical field
This utility model relates to a kind of current control device in power transmission system technical field, particularly to a kind of pole vacuum on-load switch.
Background technology
High voltage load switch often connect with high-tension fuse with the use of, be used for controlling power transformer, be that in power transmission system, indispensability is one electrical equipment.But existing pole vacuum on-load switch uses oil, air or solid insulation, insulation effect is general, and is not provided with overcurrent protection, there is potential safety hazard.
Utility model content
The defect existed for existing pole vacuum on-load switch and reality need, this utility model provides a kind of pole vacuum on-load switch.
nullTo achieve these goals，The measure that this utility model is taked: a kind of pole vacuum on-load switch，Including shell、Upending frame and the main circuit arranged in the enclosure and operating mechanism，Sulfur hexafluoride (SF6) gas it is filled with in shell，Shell includes casing、The case lid being connected on casing and the mechanism's cover being enclosed in outside operating mechanism，Casing and case lid、The connecting portion of mechanism's cover is provided with sealing device，Vacuum interrupter that main circuit includes cut-offfing three-phase current and isolated port connected in series、Straight-through current transformer，The vacuum interrupter being connected with vacuum interrupter end operation shaft insulation assembles to couple with main circuit by arc-chutes end insulator cable and is connected，Being connected in the isolated port being connected with isolated port operation shaft insulation has isolation end insulator cable to assemble，Operating mechanism includes for the operation handle of manual operation and the automatic pilot with independent current source，Operation handle is connected with the triggering system arranged in operating mechanism，It is provided with, on mechanism's cover, deciliter pointer electrically connected with automatic pilot，The upending frame being fixedly mounted on case lid includes base、Steel wire rope、Cross-arm and the two groups of loose joint bolt groups being fixed on base，Often group loose joint bolt group includes two relative loose joint bolts、One link plate that can fix to be connected with cross-arm and fixing nut，One end of link plate is socketed on loose joint bolt，The other end has the groove mated with loose joint bolt external diameter，Steel wire rope is connected with base by hook bolt；
Described sealing device is a rainproof packing ring and the film seal structure of O RunddichtringO composition；
Also include that polyphase circuit, the both sides of described every circuitry phase are mounted on a spark gap making overvoltage protection；
Between described every circuitry phase and and casing between be equipped with insulating barrier；
Described main circuit couples for highly reliable molding taper or epoxy resin external application silicone rubber sleeve；
Described operating mechanism is provided with the aviation plug connecting external equipment；
The center of gravity line of instruction center of gravity it is provided with on described case lid；
Described every circuitry phase is provided with one group of current transformer providing current signal.
The beneficial effects of the utility model: be applicable on post install, have manually and automatically two kinds of modes of operation of operation, easy to operate；Manual-operating mechanism have employed triggering system, in order to the speed opened and close is unrelated with handle speed of operation, and reaction is flexibly；The film seal structure using a rainproof packing ring and O RunddichtringO composition seals, in order to ensure during life-time service that rainwater cannot be introduced into switch internal, good seal performance；Internal filling SF6 gas also arranges isolated port and insulating barrier, has higher isolation credibility and insulating properties；Holding function during short trouble is realized by current transformer feedback system, safe and reliable.
Accompanying drawing explanation
Fig. 1 internal structure of the present utility model schematic diagram；
Fig. 2 birds-eye perspective of the present utility model；
Fig. 3 side view of the present utility model；
Fig. 4 top view of the present utility model；
Fig. 5 overall appearance of the present utility model figure；
In Fig. 6 this utility model, upending frame installs the structural representation of cross-arm additional；
Fig. 7 circuit diagram of the present utility model.
Detailed description of the invention
nullFor the defect overcoming existing pole vacuum on-load switch to exist，Meet reality need，A kind of pole vacuum on-load switch (such as Fig. 1～Fig. 7) of design，Including shell、Upending frame 6 and the main circuit arranged in the enclosure and operating mechanism 10，Sulfur hexafluoride (SF6) gas it is filled with in shell，Shell includes casing 7、The case lid 13 being connected on casing 7 and the mechanism being enclosed in outside operating mechanism 10 cover 14，Casing 7 and case lid 13、The connecting portion of mechanism's cover 14 is provided with sealing device，Vacuum interrupter 8 that main circuit includes cut-offfing three-phase current and isolated port 3 connected in series、Straight-through current transformer 2，The vacuum interrupter 8 being connected with vacuum interrupter end operation shaft insulation 5 assembles 9 by arc-chutes end insulator cable and is connected with main circuit connection 21，Being connected in the isolated port 3 being connected with isolated port operation shaft insulation 4 has isolation end insulator cable to assemble 1，Operating mechanism 10 includes for the operation handle 11 of manual operation and the automatic pilot with independent current source，Operation handle 11 is connected with the triggering system arranged in operating mechanism 10，It is provided with, on mechanism's cover 14, deciliter pointer 12 electrically connected with automatic pilot，The upending frame 6 being fixedly mounted on case lid 13 includes base、Steel wire rope 17、Cross-arm 22 and the two groups of loose joint bolt groups being fixed on base，Often group loose joint bolt group includes two relative loose joint bolts 19、One can the link plate 16 that be connected fixing with cross-arm 22 and fixing nut 20，One end of link plate 16 is socketed on loose joint bolt 19，The other end has the groove mated with loose joint bolt 19 external diameter，Steel wire rope 17 is connected with base by hook bolt 18；Described sealing device is a rainproof packing ring and the film seal structure of O RunddichtringO composition；Also include that polyphase circuit, the both sides of described every circuitry phase are mounted on a spark gap making overvoltage protection；Between described every circuitry phase and and casing 7 between be equipped with insulating barrier；It is highly reliable molding taper or epoxy resin external application silicone rubber sleeve that described main circuit couples 21；Described operating mechanism 10 is provided with the aviation plug connecting external equipment；The center of gravity line 15 of instruction center of gravity it is provided with on described case lid 13；In order to realize stream locking, each phase has all installed centre path current mutual inductance, when user needs, it is also possible to often increases by one group of current transformer providing current signal mutually, uses for electrical power distribution automatization system.In operating process, the operation handle of Drawing switch can complete breaking-closing operating, pulls right handle can complete closing operation, pulls left side can complete sub-switching operation；The most also can be by being automatically brought into operation breaking-closing operating.When operation handle is positioned at " automatically " position and operation power supply is charged, switch is in " conjunction " state；When operating power loss, switch is in " dividing " position.When operation handle is in " manually closing " position, whether charged no matter operating power supply, switch is in " conjunction " state all the time.When operating power loss, the operation handle of switch is placed in " manually close " position and makes switch be in " conjunction " state, be placed in " automatically " position and then switch and be in " dividing " state.When switch utilize power supply pass through to be automatically brought into operation be placed in " conjunction " state time, no matter handle is in " automatically " position suitable and " manually closes " position, and switch is held at " conjunction " state.In order to make switch thus state return to " dividing " state, handle is placed in " automatically " position and operation power loss is then completed " dividing " operation being automatically brought into operation.
Operation principle of the present utility model: during being automatically brought into operation, when female terminal 1,2 is powered by the operation voltage of regulation, controls relay CX energising, the CX closing of contact, then closing coil CC energising, switch Guan Bi.The travel switch b1 of operating mechanism opens afterwards, controls relay CX dead electricity, and contact is opened, operation circuit is changed into by series resistance R3, the holding circuit of hold-in winding HC and closing coil CC composition, switch utilizes the small area analysis limited to maintain holding position, power consumption about 99W.Switched after 1 second after controlling dump and open, but in a practical situation, the control voltage of switch is provided by external voltage transformer by high-tension distributing line, and be the most once short-circuited fault, and distribution voltage, the control voltage etc. of switch will drop to not normal state.When circuit flows through fault current, for ensureing switch Guan Bi, secondary side current can be supplied to control coil CC and close with maintained switch by straight-through current transformer, realizes holding function during short trouble by current transformer feedback system.
The beneficial effects of the utility model: be applicable on post install, have manually and automatically two kinds of modes of operation of operation, easy to operate；Manual-operating mechanism have employed triggering system, in order to the speed opened and close is unrelated with handle speed of operation, and reaction is flexibly；The film seal structure using a rainproof packing ring and O RunddichtringO composition seals, in order to ensure during life-time service that rainwater cannot be introduced into switch internal, good seal performance；Internal filling SF6 gas also arranges isolated port and insulating barrier, has higher isolation credibility and insulating properties；Holding function during short trouble is realized by current transformer feedback system, safe and reliable.Within the simple change of those ordinary skill in the art and replacement are all protection domain of the present utility model.
Claims (8)
- null1. a pole vacuum on-load switch，It is characterized in that，Including shell、Upending frame (6) and main circuit in the enclosure and operating mechanism (10) are set，Sulfur hexafluoride gas it is filled with in shell，Shell includes casing (7)、The case lid (13) that is connected on casing (7) and be enclosed in operating mechanism (10) mechanism's cover (14) outward，Casing (7) and case lid (13)、The connecting portion of mechanism's cover (14) is provided with sealing device，Vacuum interrupter (8) that main circuit includes cut-offfing three-phase current and isolated port (3) connected in series、Straight-through current transformer (2)，The vacuum interrupter (8) being connected with vacuum interrupter end operation shaft insulation (5) assembles (9) by arc-chutes end insulator cable and is connected with main circuit connection (21)，Being connected in the isolated port (3) being connected with isolated port operation shaft insulation (4) has isolation end insulator cable to assemble (1)，Operating mechanism (10) includes for the operation handle (11) of manual operation and the automatic pilot with independent current source，Operation handle (11) is connected with the triggering system arranged in operating mechanism (10)，It is provided with, in mechanism's cover (14), deciliter pointer (12) electrically connected with automatic pilot，The upending frame (6) being fixedly mounted on case lid (13) includes base、Steel wire rope (17)、Cross-arm (22) and the two groups of loose joint bolt groups being fixed on base，Often group loose joint bolt group includes two relative loose joint bolts (19)、One can the link plate (16) that be connected fixing with cross-arm (22) and fixing nut (20)，One end of link plate (16) is socketed on loose joint bolt (19)，The other end has the groove mated with loose joint bolt (19) external diameter，Steel wire rope (17) is connected with base by hook bolt (18).
- A kind of pole vacuum on-load switch the most according to claim 1, it is characterised in that described sealing device is a rainproof packing ring and the film seal structure of O RunddichtringO composition.
- A kind of pole vacuum on-load switch the most according to claim 1 and 2, it is characterised in that also include that polyphase circuit, the both sides of described every circuitry phase are mounted on a spark gap making overvoltage protection.
- A kind of pole vacuum on-load switch the most according to claim 3, it is characterised in that between described every circuitry phase and and casing (7) between be equipped with insulating barrier.
- A kind of pole vacuum on-load switch the most according to claim 4, it is characterised in that it is highly reliable molding taper or epoxy resin external application silicone rubber sleeve that described main circuit couples (21).
- A kind of pole vacuum on-load switch the most according to claim 5, it is characterised in that described operating mechanism (10) is provided with the aviation plug connecting external equipment.
- A kind of pole vacuum on-load switch the most according to claim 6, it is characterised in that be provided with the center of gravity line (15) of instruction center of gravity on described case lid (13).
- A kind of pole vacuum on-load switch the most according to claim 7, it is characterised in that described every circuitry phase is provided with one group of current transformer providing current signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021846.8U CN205508705U (en) | 2016-01-08 | 2016-01-08 | Vacuum load switch on post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021846.8U CN205508705U (en) | 2016-01-08 | 2016-01-08 | Vacuum load switch on post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205508705U true CN205508705U (en) | 2016-08-24 |
Family
ID=56723750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021846.8U Expired - Fee Related CN205508705U (en) | 2016-01-08 | 2016-01-08 | Vacuum load switch on post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205508705U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018119877A1 (en) * | 2016-12-27 | 2018-07-05 | 张金风 | Load switch |
| CN111817270A (en) * | 2020-07-03 | 2020-10-23 | 河南华盛隆源电气有限公司 | Load switch with current anti-interruption function |
| CN112233931A (en) * | 2020-09-23 | 2021-01-15 | 国网山东省电力公司潍坊供电公司 | Load switch device with PT (potential transformer) and installation construction method |
-
2016
- 2016-01-08 CN CN201620021846.8U patent/CN205508705U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018119877A1 (en) * | 2016-12-27 | 2018-07-05 | 张金风 | Load switch |
| CN111817270A (en) * | 2020-07-03 | 2020-10-23 | 河南华盛隆源电气有限公司 | Load switch with current anti-interruption function |
| CN112233931A (en) * | 2020-09-23 | 2021-01-15 | 国网山东省电力公司潍坊供电公司 | Load switch device with PT (potential transformer) and installation construction method |
| CN112233931B (en) * | 2020-09-23 | 2023-09-29 | 国网山东省电力公司潍坊供电公司 | Load switch device with PT and installation construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |