CN105632798A - Changeover switch for achieving buscouple and mutually backup functions of feeding power supply - Google Patents
Changeover switch for achieving buscouple and mutually backup functions of feeding power supply Download PDFInfo
- Publication number
- CN105632798A CN105632798A CN201610019884.4A CN201610019884A CN105632798A CN 105632798 A CN105632798 A CN 105632798A CN 201610019884 A CN201610019884 A CN 201610019884A CN 105632798 A CN105632798 A CN 105632798A
- Authority
- CN
- China
- Prior art keywords
- power supply
- static contact
- square shaft
- shaft assembly
- dynamic
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention relates to a changeover switch for achieving buscouple and mutually backup functions of a feeding power supply. The changeover switch mainly comprises a first changeover mechanism, a second changeover mechanism and a switch body, wherein the first changeover mechanism and the second changeover mechanism are same in structures and are arranged at two opposite ends of the switch body; in a normal condition, two paths of power supplies are separately used for supplying power to given loads; when a fault occurs in one path of power supply, a contact on a side where the power supply is located actuates, the switch body and the contact form buscouple connection, and the other path of power supply simultaneously supplies power to the two loads; and when the failure power supply is recovered to be normal, the contact on the side where the power supply is located actuates, buscouple connection is broken, and the two paths of power supplies are recovered to be normal and supply power to respective loads. In the changeover switch, excitation and spring mechanisms are used for providing a driving force, a connection rod structure is used for transferring the driving force and achieving the actuating of the contacts of the two paths of power supplies, the opening and the closing of the contact of the switch body are controlled by a transmission square shaft, a movable contact and a static contact are connected in a beat way and can be rapidly separated, and arc extinction is facilitated.
Description
Technical field
The invention belongs to field of electromechanical technology, realize mother and mutually for the permutator of function particularly to a kind of feeding power supply. Being mainly used in the power automatic transfer switch electrical equipment of PC level, this series products possesses highly reliable mechanical electric performance, and conversion speed is fast, and breaking capacity is strong.
Background technology
Development along with society, also be there is constantly change therewith by market in the demand of product, the technology of product is required more and more higher, therefore new product is also in continuous appearance, especially the renewal speed of electric product is faster, dual power supply on market by original plain edition conversion products, develops into present high-speed transitions product, or other special occasions possess the product of special function.
Summary of the invention
It is an object of the invention to provide a kind of when two-way power supply is normal two-way power supply independently to each self-corresponding load supplying, when a wherein road power failure, by the contact action of body interior, mother circuit connects conducting, it is achieved another power supply gives the permutator of two load supplyings simultaneously.
A kind of feeding power supply realizes mother and mutually for the permutator of function, and this permutator is mainly made up of shifter one, shifter two, Switch main body; Described shifter one is identical with shifter two structure, and both are distributed in the opposite end of Switch main body;
Described shifter one is made up of electric magnet one, back-moving spring one, changement one, linkage one, support one; Electric magnet one, back-moving spring one, changement one, linkage one are each attached to the relevant position of support one; Described back-moving spring one is between electric magnet one and linkage one.
Described shifter two is made up of electric magnet two, changement two, back-moving spring two, linkage two, support two; Described support one and support two are equipped with the Y type groove matched with changement one, changement two, are used for controlling two-way power supply and can not be also turned on to same load supplying, thus realizing mechanical interlocked;
Described Switch main body is made up of square shaft assembly one, left dynamic/static contact group, right dynamic/static contact group, square shaft assembly two, square shaft assembly three, square shaft assembly four; Square shaft assembly one, square shaft assembly four one end be all relatively fixed on support one; Square shaft assembly two, square shaft assembly three one end be all relatively fixed on support two; Described left dynamic/static contact assembly is identical with right dynamic/static contact modular construction, by 4 groups of moving contacts and 4 groups of static contact compositions; Moving contact and static contact coordinate correspondence to be respectively fixed on corresponding square shaft assembly between two;
During work, going wrong when end of incoming cables supplies power supply I, after controller detects signal, electric magnet one obtains electric adhesive, by linkage one under the guide effect of changement one, overcome the resistance of back-moving spring one so that square shaft assembly one action, drive square shaft assembly four action simultaneously, dynamic/static contact group A Guan Bi in left dynamic/static contact assembly, dynamic/static contact group B disconnects, mother circuit turn-on, and end of incoming cables power supply II powers to load I and load II simultaneously; Recover normal when end of incoming cables supplies power supply I; after controller detects signal, electric magnet one again electric adhesive, by linkage one under the guide effect of changement one; overcome the resistance of back-moving spring one; making square shaft assembly one action, drive square shaft assembly four action simultaneously, the dynamic/static contact group A in left dynamic/static contact assembly disconnects; dynamic/static contact group B closes; mother circuit disconnects, and end of incoming cables power supply I powers to load I, and end of incoming cables power supply II powers to load II;
When end of incoming cables supply power supply II goes wrong; after controller detects signal; electric magnet two obtains electric adhesive, and it under the guide effect of changement two, overcomes the resistance of back-moving spring two by linkage two; make square shaft assembly two action; driving square shaft assembly three action, the dynamic/static contact group C of right dynamic/static contact assembly disconnects simultaneously, and dynamic/static contact group D closes; mother circuit turn-on, end of incoming cables power supply I powers to load I and load II simultaneously; When end of incoming cables supply power supply II recovers normal, after controller detects signal, electric magnet two again electric adhesive, by linkage two under the guide effect of changement two, overcome the resistance of back-moving spring two, make square shaft assembly two action, drive square shaft assembly three action simultaneously, the dynamic/static contact group C Guan Bi of right dynamic/static contact assembly, dynamic/static contact group D disconnects, mother circuit disconnects, and end of incoming cables power supply I powers to load I, and end of incoming cables power supply II powers to load II.
Permutator of the present invention adopts double; two excitation mechanism to provide driving force independently to control the action of corresponding Switch main body contact, bar linkage structure transmit driving force, and with electric magnet back-moving spring, Y type slotted eye realizes mechanism's self-locking; The folding of body contacts is controlled by transmission square shaft. Being characterized in: conversion speed is fast, connecting breaking capacity strong, mechanical electric is functional, simple in construction, and cost of manufacture is low, long service life, stable and reliable operation, and volume is little, saves space.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of permutator of the present invention;
Fig. 2 is the Facad structure schematic diagram of shifter in permutator of the present invention;
Fig. 3 is the side structure schematic diagram of shifter in permutator of the present invention;
Fig. 4 is circuit theory diagrams during two-way power supply normal operation in permutator of the present invention;
Circuit theory diagrams when Fig. 5 is that in permutator of the present invention, power supply I goes wrong;
Circuit theory diagrams when Fig. 6 is that in permutator of the present invention, power supply II goes wrong.
In figure: 1. the left dynamic/static contact group 8. of electric magnet 1 back-moving spring 1 changement 1 linkage 1 support 1 square shaft assembly 1 right dynamic/static contact group 9. square shaft assembly 2 10. electric magnet 2 11. changement 2 12. back-moving spring 2 13. linkage 2 14. support 2 15. square shaft assembly 3 16. square shaft assembly four.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in FIG. 1 to 3, a kind of feeding power supply realizes mother and mutually for the permutator of function, and this permutator is mainly made up of shifter one, shifter two, Switch main body. Shifter one is identical with shifter two structure, and both are distributed in the opposite end of Switch main body.
Shifter one is made up of electric magnet 1, back-moving spring 1, changement 1, linkage 1, support 1. Electric magnet 1, back-moving spring 1, changement 1, linkage 1 are each attached to the relevant position of support one. Back-moving spring 1 is between electric magnet 1 and linkage 1.
Shifter two is made up of electric magnet 2 10, changement 2 11, back-moving spring 2 12, linkage 2 13, support 2 14. Support 1 and support 2 14 are equipped with the Y type groove matched with changement 1, changement 2 11, are used for controlling two-way power supply and can not be also turned on to same load supplying, thus realizing mechanical interlocked.
Switch main body is made up of square shaft assembly 1, left dynamic/static contact group 7, right dynamic/static contact group 8, square shaft assembly 29, square shaft assembly 3 15, square shaft assembly 4 16. Square shaft assembly 1, square shaft assembly 4 16 one end be all relatively fixed on support 1; Square shaft assembly 29, square shaft assembly 3 15 one end be all relatively fixed on support 2 14. Left dynamic/static contact assembly 7 is identical with right dynamic/static contact assembly 8 structure, by 4 groups of moving contacts and 4 groups of static contact compositions. Moving contact and static contact coordinate correspondence to be respectively fixed on corresponding square shaft assembly between two.
When end of incoming cables " power supply I " supply power supply go wrong time, after controller detects signal, electric magnet 1 obtains electric adhesive, by linkage 1 under the guide effect of changement 1, overcome the resistance of back-moving spring 1, make square shaft assembly 1 action, drive square shaft assembly 4 16 action simultaneously. So, the dynamic/static contact group A Guan Bi in left dynamic/static contact assembly 7, dynamic/static contact group B disconnects, mother circuit turn-on, and end of incoming cables " power supply II " gives " load I " and " load II " power supply simultaneously. When end of incoming cables " power supply I " supply power up normal time, after controller detects signal, electric magnet 1 again electric adhesive, by linkage 1 under the guide effect of changement 1, overcome the resistance of back-moving spring 1, make square shaft assembly 1 action, drive square shaft assembly 4 16 action simultaneously. So, the dynamic/static contact group A in left dynamic/static contact assembly 7 disconnects, and dynamic/static contact group B closes, and mother circuit disconnects, and end of incoming cables " power supply I " powers to " load I ", and end of incoming cables " power supply II " powers to " load II ".
When end of incoming cables " power supply II " supply power supply go wrong time, after controller detects signal, electric magnet 2 10 obtains electric adhesive, it passes through linkage 2 13 under the guide effect of changement 2 11, overcome the resistance of back-moving spring 2 12, make square shaft assembly 29 action, drive square shaft assembly 3 15 action simultaneously. So, the dynamic/static contact group C of right dynamic/static contact assembly 8 disconnects, and dynamic/static contact group D closes, mother circuit turn-on, and end of incoming cables " power supply I " gives " load I " and " load II " power supply simultaneously. When end of incoming cables " power supply II " supply power up normal time, after controller detects signal, electric magnet 2 10 again electric adhesive, by linkage 2 13 under the guide effect of changement 2 11, overcome the resistance of back-moving spring 2 12, make square shaft assembly 29 action, drive square shaft assembly 3 15 action simultaneously. So, the dynamic/static contact group C Guan Bi of right dynamic/static contact assembly 8, dynamic/static contact group D disconnects, and mother circuit disconnects, and end of incoming cables " power supply I " powers to " load I ", and end of incoming cables " power supply II " powers to " load II ".
The circuit operation principle of the present invention is: left dynamic/static contact assembly 7 and right dynamic/static contact assembly 8 are made up of 4 groups of dynamic/static contact group A, B, C, D, its structure motion is controlled by shifter one, shifter two respectively, the combined floodgate of A, B two groups realization " left dynamic/static contact assembly 7 " and disjunction, the combined floodgate of C, D two groups realization " right dynamic/static contact assembly 8 " and disjunction. As shown in Figure 4, under normal operating conditions, " load I " and " load II " is powered by end of incoming cables two-way power supply respectively, dynamic/static contact group A, D disjunction, and dynamic/static contact group B, C close a floodgate.
When end of incoming cables " power supply I " supply power supply go wrong time, after controller detects signal, the dynamic/static contact group B disconnecting lower end is driven by shifter one, the dynamic/static contact group A going to upper end closes a floodgate, " load I " and " load II " is powered by " power supply II " simultaneously, now dynamic/static contact group B, D disjunction, dynamic/static contact group A, C close a floodgate. As shown in Figure 5.
When end of incoming cables " power supply II " supply power supply go wrong time, after controller detects signal, shifter two drives and disconnects dynamic/static contact group C, the dynamic/static contact group D of lower end is closed a floodgate, realize by " power supply I ", two loads being powered simultaneously, now dynamic/static contact group A, C disjunction, dynamic/static contact group B, D close a floodgate. As shown in Figure 6.
The present invention adopts double; two excitation-type electromagnetic drive mechanism, simple and reliable square shaft component passes power, and coil moment adhesive completes conversion; Driving mechanism adopts two section structures, and two-way power drives between centers connecting rod is connected, special Y type slotted eye design, it is ensured that two-way power supply can not be also turned on to same load supplying thus realizing mechanical interlocked; Mechanism is only energized at switching instant, keeps state without electric energy, and with the back-moving spring of electric magnet, Y type slotted eye carries out self-locking; Body part dynamic/static contact adopts clapper-type to connect, energy sharp separation, is conducive to arc extinguishing; And it being equipped with independent arc-extinguish chamber, arc extinguishing is rapid.
Claims (1)
1. a feeding power supply realizes mother and mutually for the permutator of function, it is characterised in that: this permutator is mainly made up of shifter one, shifter two, Switch main body; Described shifter one is identical with shifter two structure, and both are distributed in the opposite end of Switch main body;
Described shifter one is made up of electric magnet one (1), back-moving spring one (2), changement one (3), linkage one (4), support one (5); Electric magnet one (1), back-moving spring one (2), changement one (3), linkage one (4) are each attached to the relevant position of support one; Described back-moving spring one (2) is positioned between electric magnet one (1) and linkage one (4);
Described shifter two is made up of electric magnet two (10), changement two (11), back-moving spring two (12), linkage two (13), support two (14); Described support one (5) and support two (14) are equipped with the Y type groove matched with changement one (3), changement two (11), are used for controlling two-way power supply and can not be also turned on to same load supplying, thus realizing mechanical interlocked;
Described Switch main body is made up of square shaft assembly one (6), left dynamic/static contact group (7), right dynamic/static contact group (8), square shaft assembly two (9), square shaft assembly three (15), square shaft assembly four (16); Square shaft assembly one (6), square shaft assembly four (16) one end be all relatively fixed on support one (5); Square shaft assembly two (9), square shaft assembly three (15) one end be all relatively fixed on support two (14); Described left dynamic/static contact assembly (7) is identical with right dynamic/static contact assembly (8) structure, by 4 groups of moving contacts and 4 groups of static contact compositions; Moving contact and static contact coordinate correspondence to be respectively fixed on corresponding square shaft assembly between two;
During work, go wrong when end of incoming cables supplies power supply I, after controller detects signal, electric magnet one (1) obtains electric adhesive, by linkage one (4) under the guide effect of changement one (3), overcome the resistance of back-moving spring one (2), make square shaft assembly one (6) action, drive square shaft assembly four (16) action simultaneously, dynamic/static contact group A Guan Bi in left dynamic/static contact assembly (7), dynamic/static contact group B disconnects, mother circuit turn-on, and end of incoming cables power supply II powers to load I and load II simultaneously; Recover normal when end of incoming cables supplies power supply I; after controller detects signal; electric magnet one (1) again electric adhesive; by linkage one (4) under the guide effect of changement one (3); overcome the resistance of back-moving spring one (2); make square shaft assembly one (6) action; drive square shaft assembly four (16) action simultaneously; dynamic/static contact group A in left dynamic/static contact assembly (7) disconnects; dynamic/static contact group B closes; mother circuit disconnects, and end of incoming cables power supply I powers to load I, and end of incoming cables power supply II powers to load II;
When end of incoming cables supply power supply II goes wrong; after controller detects signal; electric magnet two (10) obtains electric adhesive; it passes through linkage two (13) under the guide effect of changement two (11); overcome the resistance of back-moving spring two (12); make square shaft assembly two (9) action; drive square shaft assembly three (15) action simultaneously; the dynamic/static contact group C of right dynamic/static contact assembly (8) disconnects; dynamic/static contact group D closes; mother circuit turn-on, end of incoming cables power supply I powers to load I and load II simultaneously; When end of incoming cables supply power supply II recovers normal, after controller detects signal, electric magnet two (10) again electric adhesive, by linkage two (13) under the guide effect of changement two (11), overcome the resistance of back-moving spring two (12), make square shaft assembly two (9) action, drive square shaft assembly three (15) action simultaneously, the dynamic/static contact group C Guan Bi of right dynamic/static contact assembly (8), dynamic/static contact group D disconnects, mother circuit disconnects, and end of incoming cables power supply I powers to load I, and end of incoming cables power supply II powers to load II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019884.4A CN105632798B (en) | 2016-01-13 | 2016-01-13 | A kind of power supply that feeds realizes mother and the mutually change-over switch of standby function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019884.4A CN105632798B (en) | 2016-01-13 | 2016-01-13 | A kind of power supply that feeds realizes mother and the mutually change-over switch of standby function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105632798A true CN105632798A (en) | 2016-06-01 |
| CN105632798B CN105632798B (en) | 2018-03-16 |
Family
ID=56047612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019884.4A Active CN105632798B (en) | 2016-01-13 | 2016-01-13 | A kind of power supply that feeds realizes mother and the mutually change-over switch of standby function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105632798B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847580A (en) * | 2017-03-31 | 2017-06-13 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN107959343A (en) * | 2017-03-24 | 2018-04-24 | 天津市先智电气设备有限公司 | A kind of dual-power transfer switch |
| CN109755054A (en) * | 2019-01-15 | 2019-05-14 | 浙江正泰电器股份有限公司 | Automatic change-over |
| CN114242479A (en) * | 2021-12-30 | 2022-03-25 | 雷顿电气科技有限公司 | Operating mechanism of automatic change-over switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951580B1 (en) * | 2009-09-30 | 2010-04-09 | 오영권 | Overload driving method for an auto-switching apparatus based on a real-time power flow |
| CN102983026A (en) * | 2012-11-30 | 2013-03-20 | 深圳市泰永电气科技有限公司 | Double-power closing-opening drive conversion device |
| CN204732962U (en) * | 2015-07-10 | 2015-10-28 | 美登思电气（上海）有限公司 | Dual-power switching system |
-
2016
- 2016-01-13 CN CN201610019884.4A patent/CN105632798B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951580B1 (en) * | 2009-09-30 | 2010-04-09 | 오영권 | Overload driving method for an auto-switching apparatus based on a real-time power flow |
| CN102983026A (en) * | 2012-11-30 | 2013-03-20 | 深圳市泰永电气科技有限公司 | Double-power closing-opening drive conversion device |
| CN204732962U (en) * | 2015-07-10 | 2015-10-28 | 美登思电气（上海）有限公司 | Dual-power switching system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959343A (en) * | 2017-03-24 | 2018-04-24 | 天津市先智电气设备有限公司 | A kind of dual-power transfer switch |
| CN107959343B (en) * | 2017-03-24 | 2024-03-08 | 天津市先智电气设备有限公司 | Dual-power transfer switch |
| CN106847580A (en) * | 2017-03-31 | 2017-06-13 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN106847580B (en) * | 2017-03-31 | 2018-12-14 | 中车株洲电力机车有限公司 | A kind of high voltage isolator, high-voltaghe compartment and high voltage isolator control method |
| CN109755054A (en) * | 2019-01-15 | 2019-05-14 | 浙江正泰电器股份有限公司 | Automatic change-over |
| CN114242479A (en) * | 2021-12-30 | 2022-03-25 | 雷顿电气科技有限公司 | Operating mechanism of automatic change-over switch |
| CN114242479B (en) * | 2021-12-30 | 2023-09-15 | 雷顿电气科技有限公司 | Operating mechanism of automatic change-over switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105632798B (en) | 2018-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105632798A (en) | Changeover switch for achieving buscouple and mutually backup functions of feeding power supply | |
| CA2927514A1 (en) | Rapid tri-state bidirectional switching device | |
| CN105679619A (en) | On-off mechanism of electric appliance switch | |
| CN105470017A (en) | Transfer mechanism of dual-power supply high-speed automatic transfer switching equipment | |
| CN103474271B (en) | A kind of high-speed transitions device for switching | |
| CN101866762B (en) | Rack-and-pinion type transmission mechanism of automatic changeover switch device | |
| CN205159152U (en) | Dual -power automatic transfer switch | |
| CN103441008A (en) | Instantaneous parallel transformation structure of automatic diverter switch | |
| CN107968002A (en) | A kind of permanent magnet vacuum on-load tap changer | |
| CN201514903U (en) | Limiting type double-breakpoint electromagnetic relay | |
| CN205863028U (en) | A kind of disconnecting switch motor-operating mechanism | |
| CN104409228A (en) | Dual break point moving contact structure for dual power source automatic transfer switch | |
| CN204257436U (en) | A kind of middle pressure automatic change-over electric appliance with duplicate of permanent magnet mechanism operation | |
| CN204390924U (en) | The dynamic contact mechanism of dual-power transfer switch | |
| CN108075563B (en) | Reverse connection braking module of dual power switch control system | |
| JP6418717B2 (en) | On-load tap changer with permanent magnet drive | |
| CN208240516U (en) | A kind of permanent magnet vacuum on-load tap changer | |
| CN201178059Y (en) | Uninterrupted change-over switch for dual electricity power | |
| CN106531492B (en) | Eccentric wheel sliding block driven type self-sustaining electric-controlled switch | |
| SE515733C2 (en) | Motor actuator for switchgear | |
| CN101231915B (en) | Double power change-over switch without intermittence | |
| CN201796766U (en) | Electrical interlocking control device for transfer switching equipment | |
| CN210200590U (en) | Dual-power switching mechanism and switch equipment with same | |
| CN204991515U (en) | Two power change -over switch's quick switching mechanism | |
| CN209641581U (en) | A kind of novel double load switch interlocking mechanisms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |