CN108766804A - High voltage double power source vacuum automatic change-over - Google Patents
High voltage double power source vacuum automatic change-over Download PDFInfo
- Publication number
- CN108766804A CN108766804A CN201810473284.4A CN201810473284A CN108766804A CN 108766804 A CN108766804 A CN 108766804A CN 201810473284 A CN201810473284 A CN 201810473284A CN 108766804 A CN108766804 A CN 108766804A
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- China
- Prior art keywords
- vacuum
- power source
- automatic change
- high voltage
- over
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0038—Tap change devices making use of vacuum switches
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present invention relates to a kind of high voltage double power source vacuum automatic change-overs, two-way separate high pressure power supply switches powering load by a high voltage double power source vacuum automatic change-over, high voltage double power source vacuum automatic change-over includes high pressure vacuum circuit breaker with double breaks and controller, high pressure vacuum circuit breaker with double breaks includes two and interconnects vacuum interrupter independent of each other again, dynamic and static contact in each vacuum extinction room, connection moving contact and the insulated connecting rod and rapid repulsion mechanism for stretching out vacuum interrupter, controller controls rapid repulsion mechanism, under the driving of rapid repulsion mechanism, insulated connecting rod drives the up and down motion of metal moving contact to be turned on or off with static contact.The function of two vacuum circuit breakers is realized in an equipment, high voltage double power source vacuum automatic change-over is mounted on the floor space that a switchgear can be directly saved in switchgear.
Description
Technical field
The present invention relates to a kind of middle voltage electrical equipment, more particularly to a kind of high voltage double power source vacuum automatic change-over.
Background technology
The load for having some critically important in middle-and-high voltage system especially 10kV and 35 kV, such as the type load in power plant
The either important loads such as the especially important load in power consumer or railway electric locomotive, they need multiple power supplies general
All it is two-way independent current source to ensure that another way power supply can put into operation quickly when power supply disappears all the way, the power supply of such load
Reliability can technically be guaranteed.Come frequently with acquirement power supply on the different bus sections of the same electric substation negative to this
Lotus is powered.As shown in Figure 1 with the wiring diagram of the important load of twice power supply power supplies.Power supply is obtained from different busbares, is used
Completely self-contained breaker, two loop line roads power.This two breakers occupy the interval of a power distribution equipment respectively in this way, because
This floor space is very big.For many power distribution equipments, floor space is an important considerations.
Invention content
The problem of needing with two breakers and taking up a large area the present invention be directed to high-voltage dual power power supply, it is proposed that
A kind of high voltage double power source vacuum automatic change-over, directly instead of completely self-contained two breakers, equipment only accounts for an open circuit
The interval of device cabinet, floor space are small.
The technical scheme is that：A kind of high voltage double power source vacuum automatic change-over, two-way separate high pressure power supply are logical
A high voltage double power source vacuum automatic change-over switching powering load is crossed, high voltage double power source vacuum automatic change-over includes
High pressure vacuum circuit breaker with double breaks, rapid repulsion mechanism and controller, high pressure vacuum circuit breaker with double breaks include two and are mutually connected
It connects and the dynamic and static contact in vacuum interrupter independent of each other, each vacuum extinction room and connects moving contact and stretch out vacuum
The insulated connecting rod of arc-chutes, insulated connecting rod are connect with rapid repulsion mechanism, and controller controls rapid repulsion mechanism, quick
Under the driving of repulsive force mechanism, insulated connecting rod drives the up and down motion of metal moving contact to be turned on or off with static contact.
It is described two interconnect again vacuum interrupter independent of each other include bellows, bellows shield cover, copper end cap,
Insulation crust, guide sleeve and open-porous metal move moved end lid, and copper end cap both sides are respectively symmetrically connected with insulation crust, and insulation crust is another
Side has open-porous metal to move moved end lid, and the dynamic moved end lid of open-porous metal has separately constituted two with insulation crust and copper end cap and has mutually been connected
It connects and vacuum interrupter independent of each other, the arc-chutes direction towards both sides is fitted with static contact, trepanning gold on copper end cap
Belonging to has guide sleeve, vacuum interrupter inner corrugated pipe to move the trepanning phase of moved end lid with open-porous metal on the trepanning hole wall for moving moved end lid
Even, metal moving conductive rod one end is connect with moving contact, and the other end is connect with insulated connecting rod, and wave is passed downwardly through in leading for guide sleeve
Under the drive of metal moving conductive rod vacuum interrupter can be able to move and have vacuum degree for line pipe, outside bellows towards
Dynamic/static contact direction is equipped with bellows shield cover, and electric arc damages bellows in protection vacuum extinction room.
It is described on two vacuum extinction chamber interior walls both sides, face dynamic and static contact face is equipped with master on upright position
Shielding case.
The copper end cap extends to connection lead wire at the position outside insulation crust, lead wire connection load；Two gold
Belonging to one end that moving conductive rod stretches out outside vacuum extinction room has external lead wire, connects two power supplys respectively.
The insulation crust is the ceramics or devitrified glass Insulating frame shell of cylindrical, hollow.
The beneficial effects of the present invention are：High voltage double power source vacuum automatic change-over of the present invention, by two vacuum circuit breakers
The function of device realizes that high voltage double power source vacuum automatic change-over is mounted in switchgear and can directly save in an equipment
The floor space of one switchgear.
Description of the drawings
Fig. 1 is the wiring diagram with the important load of twice power supply power supplies；
Fig. 2 is high voltage double power source vacuum automatic change-over component part schematic diagram of the present invention；
Fig. 3 is high voltage double power source vacuum automatic change-over mesohigh vacuum circuit breaker with double breaks structural schematic diagram of the present invention；
Fig. 4 is that high voltage double power source vacuum automatic change-over of the present invention realizes functional diagram；
Fig. 5 is when the present invention replaces two breakers in single mother partition wiring with high voltage double power source vacuum automatic change-over
Connection figure.
Specific implementation mode
Two breakers are merged into a high voltage double power source vacuum automatic change-over, high voltage double power source vacuum is from turn
Change switch its component part schematic diagram it is as shown in Figure 2.It is made of high pressure vacuum circuit breaker with double breaks and controller.High pressure double break
Mouthful vacuum circuit breaker is a crucial component, structure as shown in figure 3, it by high pressure double-fracture vacuum interrupter and rapid repulsion
Mechanism and frame composition.The insulation crust 4 of high pressure double-fracture vacuum interrupter is the ceramics or devitrified glass of cylindrical, hollow
Insulating frame shell.Round or other shapes can 3 both sides of copper end cap be respectively symmetrically connected with insulation crust 4, insulation is outer
4 other side of shell has open-porous metal moved end lid 6, metal moved end lid 6 to separately constitute two mutually with insulation crust 4 and copper end cap 3
Connection and vacuum interrupter independent of each other.The arc-chutes direction towards both sides is fitted with static contact 9 on copper end cap 3.Absolutely
12 one end of edge connecting rod is connect with rapid repulsion mechanism 13, the other end and the metal moving conductive rod phase outside stretching vacuum extinction room
Even.The metal moving conductive rod other end is connect with moving contact 10, and under the driving of rapid repulsion mechanism 13, insulated connecting rod 12 drives
The up and down motion of metal moving contact 10 is turned on or off with static contact 9；With the metal moved end lid 6 that can be used for fixed hole, gold
Belong to dynamic cover internal with bellows 1 to be connected, bellows 1 is passed downwardly through under the drive of metal moving conductive rod in leading for guide sleeve 5
It can make vacuum interrupter that can move and there is vacuum degree.In vacuum extinction room, 1 outside of bellows is towards dynamic/static contact side
To bellows shield cover 2 is equipped with, bellows is protected, prevents to generate electric arc in vacuum extinction room to bellows 1 from damaging；
Main shield cover 7 is installed on the upright position of face dynamic and static contact face on two vacuum extinction chamber interior walls both sides；At copper end
Lid 3 extends at the position outside insulation crust 4, and copper end cap 3 connects lead wire 8, the connection load of lead wire 8；Two metals are dynamic
There is external lead wire 11 in one end that conducting rod stretches out outside vacuum extinction room, connects two power supplys respectively.Insulation crust 4 by copper end cap 3 every
At up-down structure can be identical.
The connecting-disconnecting function of vacuum interrupter cut-offs the load current and short-circuit current of two independent electrical sources enough.Make
It can easily ensure connecting-disconnecting function in vacuum environment with vacuum interrupter.Vertical magnetic may be used in contact or horizontal magnetic touches
Head, and mechanism can so that vacuum interrupter directly moves along a straight line with repulsive force mechanism, and also movement velocity is fast.In control section
Control under it can conveniently realize following functions, as shown in Figure 4.
Therefore this high pressure vacuum automatic change-over is unique in that：By the function of two vacuum circuit breakers one
It is realized in platform equipment, this breaker is mounted on the floor space that a switchgear can be directly saved in switchgear, saving
Space is very objective.
This two breakers can be only with a high pressure when the same high voltage load needs two breakers independently-powered
Vacuum automatic change-over can save 50% floor space in this way.It can be used in：The master in single mother partition wiring is applied to connect
In line, as shown in Figure 1, the case where powering respectively from different bus section, busbar sections to the same load.It can also be used in double female wiring
In, the case where power supply from different busbares to same load.Two breaker replacement cost invention high voltage double power source vacuums are from turn
It changes as shown in Figure 5 using wiring condition after switch.The third application is powered to the same high voltage load with two-way power supply
Situation.Under these service conditions space and dependable performance can be saved using this patent high pressure vacuum automatic change-over.
Claims (5)
1. a kind of high voltage double power source vacuum automatic change-over, which is characterized in that two-way separate high pressure power supply passes through a high pressure
Double power source vacuum automatic change-over switches powering load, and high voltage double power source vacuum automatic change-over includes high pressure double-fracture
Vacuum circuit breaker, rapid repulsion mechanism and controller, high pressure vacuum circuit breaker with double breaks include that two interconnections are again only each other
It dynamic and static contact in vertical vacuum interrupter, each vacuum extinction room and connects moving contact and stretches out the exhausted of vacuum interrupter
Edge connecting rod, insulated connecting rod are connect with rapid repulsion mechanism, and controller controls rapid repulsion mechanism, in rapid repulsion mechanism
Under driving, insulated connecting rod drives the up and down motion of metal moving contact to be turned on or off with static contact.
2. high voltage double power source vacuum automatic change-over according to claim 1, which is characterized in that described two interconnections
Vacuum interrupter independent of each other includes bellows again（1）, bellows shield cover（2）, copper end cap（3）, insulation crust（4）, lead
To set（5）With open-porous metal moved end lid（6）, copper end cap（3）Both sides are respectively symmetrically connected with insulation crust（4）, insulation crust（4）
There is open-porous metal moved end lid in the other side（6）, open-porous metal moved end lid（6）With insulation crust（4）And copper end cap（3）It separately constitutes
Two interconnect vacuum interrupter independent of each other again, in copper end cap（3）On the arc-chutes direction towards both sides be fitted with
Static contact（9）, open-porous metal moved end lid（6）Trepanning hole wall on have guide sleeve（5）, vacuum interrupter inner corrugated pipe（1）With open
Mesoporous metal moved end lid（6）Trepanning be connected, metal moving conductive rod one end and moving contact（10）Connection, the other end and insulated connecting rod
（12）Connection, in guide sleeve（5）Lead and pass downwardly through bellows（1）It can make vacuum extinction under the drive of metal moving conductive rod
Room can move and have vacuum degree, bellows（1）Outside is equipped with bellows shield cover towards dynamic/static contact direction（2）, protect
Electric arc is to bellows in shield vacuum extinction room（1）It damages.
3. high voltage double power source vacuum automatic change-over according to claim 1 or claim 2, which is characterized in that described true at two
On empty arc extinguishing chamber interior walls both sides, face dynamic and static contact face is equipped with main shield cover on upright position（7）.
4. high voltage double power source vacuum automatic change-over according to claim 3, which is characterized in that the copper end cap（3）Prolong
Extend to insulation crust（4）Lead wire is connected at external position（8）, lead wire（8）Connection load；Two metal moving conductive rods are stretched
There is external lead wire in the one end gone out outside vacuum extinction room（11）, two power supplys are connect respectively.
5. high voltage double power source vacuum automatic change-over according to claim 4, which is characterized in that the insulation crust（4）
For the ceramics or devitrified glass Insulating frame shell of cylindrical, hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810473284.4A CN108766804A (en) | 2018-05-17 | 2018-05-17 | High voltage double power source vacuum automatic change-over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810473284.4A CN108766804A (en) | 2018-05-17 | 2018-05-17 | High voltage double power source vacuum automatic change-over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108766804A true CN108766804A (en) | 2018-11-06 |
Family
ID=64008408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810473284.4A Pending CN108766804A (en) | 2018-05-17 | 2018-05-17 | High voltage double power source vacuum automatic change-over |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108766804A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071383U (en) * | 1990-06-08 | 1991-02-13 | 无锡市无线电元件三厂 | Low voltage double motion electrode vacuum arc-suppression room |
| JP2006019193A (en) * | 2004-07-05 | 2006-01-19 | Toshiba Corp | Switching device |
| CN203165794U (en) * | 2013-04-01 | 2013-08-28 | 四川华仪电器有限公司 | Fast dual-power transfer switch |
-
2018
- 2018-05-17 CN CN201810473284.4A patent/CN108766804A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071383U (en) * | 1990-06-08 | 1991-02-13 | 无锡市无线电元件三厂 | Low voltage double motion electrode vacuum arc-suppression room |
| JP2006019193A (en) * | 2004-07-05 | 2006-01-19 | Toshiba Corp | Switching device |
| CN203165794U (en) * | 2013-04-01 | 2013-08-28 | 四川华仪电器有限公司 | Fast dual-power transfer switch |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181106 |
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