CN203466621U - Dual-power mutual-throw self-reset automatic-switching device - Google Patents
Dual-power mutual-throw self-reset automatic-switching device Download PDFInfo
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- CN203466621U CN203466621U CN201320522230.5U CN201320522230U CN203466621U CN 203466621 U CN203466621 U CN 203466621U CN 201320522230 U CN201320522230 U CN 201320522230U CN 203466621 U CN203466621 U CN 203466621U
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- moving contact
- connecting rod
- circuit breaker
- power
- throw
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Abstract
The utility model discloses a dual-power mutual-throw self-reset automatic-switching device which comprises a rack. The lower part of the rack is fixedly equipped with a circuit breaker, and a moving contact which is connected with the circuit breaker. The upper and lower sides of the moving contact are respectively provided with a main-power static contact and a standby-power static contact. The moving contact is a V-shaped moving contact. The upper arm of the V-shaped moving contact is connected with one end of a connecting rod. The upper part of the rack is fixedly equipped with a motor and a speed reducer. The output end of the speed reducer is fixedly equipped with a rotating rod. The other end of the connecting rod is connected with the rotating rod. The upper part of the connecting rod is provided with a limiting switch. According to the utility model, the moving contact employs a V-shaped structure, thereby enabling main and standby power supplies to have an apparent cut-off point without additionally arranging electrical and mechanical latches, effectively preventing reverse power feeding, and enabling the operation mode to be safe and reliable. The device can automatically switch to a low-voltage load of 3200A or below according to a preset procedure, and the switching process needs 7-10 seconds, thereby achieving the dual-power mutual-throw self-reset automatic switching. During the maintenance of a low-voltage side, a double-throw switch can be manually operate to a maintenance position or a circuit breaker body is switched off, thereby guaranteeing the safety of maintenance work.
Description
Technical field
The utility model relates to a kind of power control, and the duplicate supply that particularly a kind of electricity consumer that has duplicate supply is used is thrown automatic switching control equipment mutually.
Background technology
In the distribution line of prior art, in order to guarantee power supply quality and to reduce frequency of power cut, conventionally all adopt duplicate supply line powering, simple dual power supply adopts manual switching, while being main power source generation power failure, disconnecting link is switched on stand-by power supply and continues to power by hand, this mode there will be certain interruption duration in handoff procedure, can exert an influence to power consumer, if particularly some important places as hospital operating room or some visual plant, as medical examination apparatus, power failure midway can cause loss or the major accident that is difficult to make up.Therefore duplicate supply is thrown runback automatic switching control equipment mutually with adopting per family mostly at present.Chinese patent 200510007152 disclosed " low-voltage dual power supply switching box ", it forms with a double-throw switch being connected with two-way power supply and a circuit breaker main circuit that duplicate supply switches, double-throw switch and circuit breaker respectively have a mechanical toggle mechanism, between two toggle mechanisms, there is interlocked relationship, guarantee that double-throw switch carries out the switching of two-way power supply under the condition of circuit breaker disconnection.
Summary of the invention
Task of the present utility model is the problem existing for above-mentioned technology, designs a kind of duplicate supply and throws mutually runback automatic switching control equipment.Solving the active and standby power supply of existing mutual throwing self-complex switch does not have obvious cut-off point, electric, the mechanical latching equipment of essential another installing, and may there is anti-power transmission situation, form the deficiencies such as potential safety hazard.
A kind of duplicate supply is thrown runback automatic switching control equipment mutually, comprise frame, in frame lower, be fixed with circuit breaker, the moving contact being connected with circuit breaker, the both sides up and down of described moving contact are respectively arranged with main power source fixed contact and stand-by power supply fixed contact, it is characterized in that described moving contact is V-shape moving contact.
Described duplicate supply is thrown runback automatic switching control equipment mutually, it is characterized in that the upper arm of described V-shape moving contact and one end of connecting rod are connected, the decelerator that is fixed with motor and is connected with motor on the top of frame, output at decelerator is fixed with bull stick, the other end of described connecting rod is connected with bull stick, on connecting rod top, is provided with limit switch.
Described duplicate supply is thrown runback automatic switching control equipment mutually, and it is characterized in that has reduction gearing between motor and decelerator, and two limits of described V-shape moving contact are orthogonal right-angle structure.
Adopt dual power supply automatic switching device of the present utility model, moving contact adopts V-shape structure, makes active and standby power supply have obvious cut-off point, does not need separately to install electric, mechanical latching, effectively prevents anti-power transmission, operational mode safety, reliable.It can be by pre-set programs automatically switch 3200A and following low-voltage load, the about 7-10 of handoff procedure second, can realize duplicate supply and throw mutually runback and automatically switch, and duplicate supply operation has obvious cut-off point, switching that double-throw knife switch is zero load with disconnection.Can manual operation double-throw switch when low-pressure side is overhauled to overhauling position or pulling open breaker body, guarantee that upkeep operation carries out safely.
Accompanying drawing explanation
Fig. 1 is switching device shifter structural representation;
Fig. 2 is the right side view of Fig. 1;
Fig. 3 is the left side view of Fig. 1.
In figure, reverse motors under 1-; 2-gear; 3-decelerator; 4-limit switch; 5-connecting rod; 6-main power source fixed contact; 7-moving contact; 8-stand-by power supply fixed contact; 9-busbar; 10-end of incoming cables; 11-breaker body; 12-leading-out terminal; 13-load side; 14-fixed frame; 15-bull stick.
Embodiment
Shown in Fig. 1-3, be that duplicate supply of the present utility model is thrown runback automatic switching control equipment structural representation mutually, its essence is the internal structure of a switch cubicle, shown in figure, bottom is breaker portion, comprise breaker body 11, what be connected with breaker body has busbar 9 and an end of incoming cables 10, has leading-out terminal 12 and load side 13 in circuit breaker bottom.Figure middle and upper part is electrical source exchange part, comprises a fixed mount 14, and the front of this fixed mount is provided with three-phase V font moving contact 7, and in illustrated embodiment, two of this V-shape structure limits are orthogonal.On moving contact top, have main power source fixed contact 6, bottom is stand-by power supply fixed contact 8.Bottom and the fixed mount 14 of V font moving contact are hinged, and pin joint is connected with the busbar 9 at the fixed mount back side.The back side at fixed mount is also fixed with respectively motor 1, and this motor is clockwise and anticlockwise motor, and the input of decelerator 3 is connected with motor shaft by a gear 2.On the output shaft of decelerator, be fixed with bull stick 15, one end of the lower end of bull stick and connecting rod 5 is hinged, and a support arm of the other end of connecting rod 5 and V font moving contact is hinged.In illustrated embodiment, have on a cross bar and have three tie points to be hinged with upper arm or the underarm of three-phase moving contact respectively, connecting rod 5 pushes away or draws this cross bar can make V font moving contact be connected with main power source or stand-by power supply, realizes and switching.The switching of above-mentioned power supply realizes by setup program active and standby power supply and throws mutually runback automatic switchover.By control device, carry out automatic control, the utility model only provides its hardware components.
During work, if when main power source and stand-by power supply are simultaneously charged, take main power source as load power; If main power source has a power failure, when stand-by power supply has electricity, circuit breaker disconnection-moving contact (double-throw switch) switches to stand-by power supply-breaker closing, and stand-by power supply becomes load power.If in stand-by power supply running, during main power source incoming call, circuit breaker disconnects---moving contact (double-throw switch) switches to main power source--breaker closing, and main power source is still powered as load power.During interruption maintenance, manually disconnecting main power source and stand-by power supply control switch--circuit breaker disconnects-makes moving contact (double-throw knife switch) and switches to maintenance position, pulls out breaker body and overhauls.If in moving contact (double-throw knife switch) course of action, main power source and stand-by power supply all have a power failure, and moving contact stops action or manual operation to overhauling position, when main power source or stand-by power supply incoming call because of dead electricity, press main power source or stand-by power supply button, switched to a side of incoming call.If main power source and stand-by power supply are sent a telegram here simultaneously, manual operation makes main power source load operation, manually presses stand-by power supply button invalid.
Claims (3)
1. a duplicate supply is thrown runback automatic switching control equipment mutually, comprise frame (14), in frame lower, be fixed with circuit breaker (11), the moving contact being connected with circuit breaker (7), the both sides up and down of described moving contact are respectively arranged with main power source fixed contact (6) and stand-by power supply fixed contact (8), it is characterized in that described moving contact (7) is V font moving contact.
2. duplicate supply according to claim 1 is thrown runback automatic switching control equipment mutually, the upper arm that it is characterized in that described V font moving contact is connected with one end of connecting rod (5), the decelerator (3) that is fixed with motor (1) on the top of frame and is connected with motor, output at decelerator is fixed with bull stick (15), the other end of described connecting rod (5) is connected with bull stick, on connecting rod (5) top, is provided with limit switch (4).
3. duplicate supply according to claim 1 is thrown runback automatic switching control equipment mutually, and it is characterized in that has reduction gearing between motor and decelerator, and two limits of described V-shape moving contact are orthogonal right-angle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522230.5U CN203466621U (en) | 2013-08-26 | 2013-08-26 | Dual-power mutual-throw self-reset automatic-switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522230.5U CN203466621U (en) | 2013-08-26 | 2013-08-26 | Dual-power mutual-throw self-reset automatic-switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466621U true CN203466621U (en) | 2014-03-05 |
Family
ID=50178960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522230.5U Expired - Lifetime CN203466621U (en) | 2013-08-26 | 2013-08-26 | Dual-power mutual-throw self-reset automatic-switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426234A (en) * | 2013-08-26 | 2015-03-18 | 国家电网公司 | Dual-power source mutual-throw self-reset automatic-switching device |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
-
2013
- 2013-08-26 CN CN201320522230.5U patent/CN203466621U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426234A (en) * | 2013-08-26 | 2015-03-18 | 国家电网公司 | Dual-power source mutual-throw self-reset automatic-switching device |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
| CN108461321B (en) * | 2018-03-27 | 2020-10-02 | 国网山东省电力公司郓城县供电公司 | Dual-power switching protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: SHOUYANG BINCHUANG ELECTRICAL MACHINERY TECHNOLOGY CO., LTD. Effective date: 20140214 Owner name: SHOUYANG BINCHUANG ELECTRICAL MACHINERY TECHNOLOGY Effective date: 20140214 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 045400 JINZHONG, SHAANXI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140214 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: SHOUYANG COUNTY BINCHUANG ELECTRICAL MACHINERY TECHNOLOGY Co.,Ltd. Patentee after: SHANXI ELECTRIC POWER COMPANY JINZHONG POWER SUPPLY CO. Address before: 045400, Shanxi, Jinzhong province Shouyang County Yang Yang Village (after North Primary School playground) Patentee before: SHOUYANG COUNTY BINCHUANG ELECTRICAL MACHINERY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |