CN206401228U - A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability - Google Patents
A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability Download PDFInfo
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- CN206401228U CN206401228U CN201621309901.XU CN201621309901U CN206401228U CN 206401228 U CN206401228 U CN 206401228U CN 201621309901 U CN201621309901 U CN 201621309901U CN 206401228 U CN206401228 U CN 206401228U
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- short circuit
- circuit current
- electrical structure
- increasing productivity
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Abstract
The utility model discloses the electrical structure that a kind of increasing productivity switchs rated short circuit current making capability, circuit is controlled including on-load switch electromagnetic mechanism, closing coil is in series between positive source and negative pole in the circuit, dynamic iron core is provided with closing coil, motion bracket is arranged at intervals with dynamic iron core, motion bracket is connected with combined floodgate rotating shaft in turn, connecting rod and vacuum arc-extinguishing chamber contact moved end, spring is arranged with connecting rod between combined floodgate rotating shaft and moving contact, capacitor is connected between positive source and negative pole, capacitor is used for energy storage, the energy storage is used to increase indirectly closing coil in the magnetic field for closing a floodgate moment, magnetized dynamic iron core is connected with motion bracket magnetic force, drive motion bracket, combined floodgate rotating shaft and the linkage of vacuum interrupter moving contact.The utility model is obtaining electric, sound iron core adhesive moment by the electromagnetic mechanism secondary circuit of on-load switch, increasing corresponding electric components, auxiliary switching-in coil, produces the motion of power drive moving contact and closes a floodgate.
Description
Technical field
The utility model belongs to outdoor projection applied technical field, and in particular to a kind of intelligence projection curtain wall, it is adaptable to build
Build on big such as Business Building upstairs using the broadcasting for carrying out video, instead of traditional outdoor display platform such as LED screen.
Background technology
With the development and the raising of technical merit of society, people propose higher to power supply reliability and power off time
It is required that, it is constantly improve Reliability of Power Supplying Net Work, strengthens distribution safety management, dependable performance, operation safety, the tool of price material benefit
Standby backbone earth fault isolation, the voltage-time type HVAC vacuum on-load switch of circuit automatic recovery of power supply, are feeder lines
Automate indispensable equipment；
Voltage-time type vacuum load switch is a kind of according to the state for closing front and rear circuit different time sections voltage
Identification and the on-load switch complete set of equipments of isolated fault.Related frequency is needed in actual motion closes short circuit current flow.Cause
This, rated short circuit current making capability is most important in circuit operation, and the height of on-load switch making capability directly affects line
The reliability that road powers.
Existing voltage-time type on-load switch, is by " high-tension switch gears of GB/T 11022 and control device standard
Common specification " design, be E2 stage loads switch, 3 rated short circuit currents can only be closed, even if by E3 grades of highest
Standard is designed, and also only possesses the ability for closing rated short circuit current for 5 times.
Utility model content
Based on the deficiencies in the prior art, the purpose of this utility model is to provide a kind of increasing productivity switch nominal short-circuit electricity
The electrical structure of making capability is flowed, voltage-time type vacuum load switch is realized that multiple rated short circuit current is closed, is solved existing
Have the shortcomings that to close number of times in technology few, improve the power supply reliability of backbone sectionalized line.
To achieve the above object, the technical solution of the utility model is：
A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability, including on-load switch electromagnetic mechanism control
It is in series with circuit processed, the circuit between positive source and negative pole in closing coil, closing coil and is provided with dynamic iron core, it is and described
Dynamic iron core is arranged at intervals with motion bracket, and support is connected with combined floodgate rotating shaft, connecting rod and vacuum interrupter moving contact, the conjunction in turn
Spring is arranged with connecting rod between lock rotating shaft and the vacuum interrupter moving contact, between the positive source and negative pole also
Capacitor is connected with, the capacitor is in parallel with the closing coil.
It is preferred that, the capacitor is alminium electrolytic condenser.
It is preferred that, the capacitor is made up of the alminium electrolytic condenser of two series connection.
It is preferred that, first resistor is in series between positive source and the capacitor, second resistance is parallel with.
It is furthermore preferred that the first resistor is around current-limiting resistor with radiator high power line.
It is furthermore preferred that the second resistance is around voltage grading resistor by glaze line.
It is preferred that, the spring is right-spiral, is made up of the manganese steel of 60 silicon 2, a diameter of 5.5mm of helical.
The beneficial effects of the utility model are：Make the rated short circuit current that closes of voltage-time type vacuum load switch
Number of times reaches 7 times of conventional E2 stage loads switch, reaches 4 times of highest E3 stage loads switch, significant increase on-load switch
Performance is closed, the accurate isolated fault of backbone sectionalized line energy is ensured, recovers line powering automatically, substantially increase line powering
Reliability.
Brief description of the drawings
Fig. 1 is the vacuum load switch internal structure schematic diagram of the utility model specific embodiment；
Fig. 2 is the secondary electrical principle block diagram of the voltage-type electromagnetic mechanism of the utility model specific embodiment；
Fig. 3 is that the component of the utility model specific embodiment is installed and wiring path theory diagram.
Embodiment
The technique effect of design of the present utility model, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area
The other embodiment that art personnel are obtained on the premise of not paying creative work, belongs to the model of the utility model protection
Enclose.
As depicted in figs. 1 and 2, a kind of increasing productivity switchs the electrical structure of rated short circuit current making capability, including negative
Closing coil HC, closing coil HC are in series between positive source and negative pole in lotus switch electromagnetic mechanism control circuit, the circuit
It is in parallel with switching winding CC, dynamic iron core is provided with closing coil HC, motion bracket is arranged at intervals with dynamic iron core, support is successively
It is connected with combined floodgate rotating shaft 1, connecting rod and vacuum interrupter moving contact 2, the company between combined floodgate rotating shaft 1 and vacuum interrupter moving contact 2
Spring 3 is arranged with bar,
Capacitor C3, capacitor C3 are also associated between positive source and negative pole in parallel with closing coil HC, capacitor
C3 is used for energy storage, and the energy storage is used to increase indirectly closing coil HC in the magnetic field for closing a floodgate moment, and the magnetic field of change makes dynamic iron core magnetic
Change, magnetized dynamic iron core is connected with motion bracket magnetic force, drives motion bracket, combined floodgate rotating shaft 1 and vacuum interrupter moving contact 2
It is dynamic.
The present embodiment spring 3 is excess of stroke spring, and excess of stroke spring can respectively be provided after on-load switch combined floodgate to three-phase moving contact
Larger contact pressure, after existing on-load switch closes a floodgate, the contact pressure value that different manufacturers are set differs, be typically in the range of 400N~
Between 800N；The excess of stroke spring of the present embodiment is right-spiral, is made up of the manganese steel of 60 silicon 2, a diameter of 5.5mm of helical can significantly subtract
Close less during short circuit current flow, the arcing between the dynamic and static contact of on-load switch vacuum interrupter reduces dynamic and static contact surface
Scaling loss, so that ensure vacuum load switch closes number of times.
The capacitor of the present embodiment is alminium electrolytic condenser, and capacitor is made up of the alminium electrolytic condenser of two series connection.
First resistor R3 is in series between positive source and capacitor, second resistance R4 is parallel with.First resistor R3 is
Band radiator high power wirewound resistor, is divider resistance.It, around voltage grading resistor, is current limliting electricity that second resistance R4, which is by glaze line,
Resistance, two resistance purposes are to protect other components not to be burnt, it is ensured that electromagnetic mechanism secondary circuit reliability service, so as to
Splitting or integrating lock is normally completed by driving load switch.
As shown in figure 3, the external AC220V working powers of the controller of on-load switch, on-load switch voltage-type is given by controller
Mechanism closing circuit is powered；The larger alminium electrolytic condenser C3 of capacity, band radiator high power line are installed on around current-limiting resistor R3
In controller battery case, it is installed on by glaze line around voltage grading resistor R4 in on-load switch mechanism case.
The present embodiment is by the electromagnetic mechanism secondary circuit of on-load switch, increasing corresponding electric components, auxiliary
Closing coil HC is obtaining electric, sound iron core adhesive moment, produces sufficiently large energy and goes driving three-phase excess of stroke pressure larger
Moving contact motion is closed a floodgate；
The moving contact pressure of on-load switch three-phase is larger, can be greatly decreased during closing short circuit current flow, arc-chutes are dynamic and static
Arcing between contact, reduces the scaling loss on dynamic and static contact surface, so that be substantially improved load switch equipment closes performance,
Close 7 times, 4 times of highest E3 stage loads switch of the reachable routine E2 stage loads switch of nominal short-circuit number of times.
It should be noted that simply preferred embodiment of the present utility model described above, the utility model not office
It is limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, should all belongs to this practicality new
The protection domain of type.
Claims (7)
1. a kind of increasing productivity switchs the electrical structure of rated short circuit current making capability, including the control of on-load switch electromagnetic mechanism
It is in series with circuit, the circuit between positive source and negative pole in closing coil, closing coil and is provided with dynamic iron core, is moved with described
Iron core is arranged at intervals with motion bracket, and support is connected with combined floodgate rotating shaft, connecting rod and vacuum interrupter moving contact, the combined floodgate in turn
Spring is arranged with connecting rod between rotating shaft and the vacuum interrupter moving contact are dynamic, it is characterised in that：In the positive source
Capacitor is also associated between negative pole, the capacitor is in parallel with the closing coil.
2. increasing productivity as claimed in claim 1 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
The capacitor is alminium electrolytic condenser.
3. increasing productivity as claimed in claim 2 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
The capacitor is made up of the alminium electrolytic condenser of two series connection.
4. increasing productivity as claimed in claim 1 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
First resistor is in series between positive source and the capacitor, second resistance is parallel with.
5. increasing productivity as claimed in claim 4 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
The first resistor is band radiator high power line around current-limiting resistor.
6. increasing productivity as claimed in claim 4 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
The second resistance is around voltage grading resistor by glaze line.
7. increasing productivity as claimed in claim 1 switchs the electrical structure of rated short circuit current making capability, it is characterised in that：
The spring is right-spiral, is made up of the manganese steel of 60 silicon 2, a diameter of 5.5mm of helical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621309901.XU CN206401228U (en) | 2016-12-01 | 2016-12-01 | A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621309901.XU CN206401228U (en) | 2016-12-01 | 2016-12-01 | A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401228U true CN206401228U (en) | 2017-08-11 |
Family
ID=59510148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621309901.XU Active CN206401228U (en) | 2016-12-01 | 2016-12-01 | A kind of increasing productivity switchs the electrical structure of rated short circuit current making capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206401228U (en) |
-
2016
- 2016-12-01 CN CN201621309901.XU patent/CN206401228U/en active Active
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