CN207572813U - A kind of balanced type direct current quick breaker device - Google Patents
A kind of balanced type direct current quick breaker device Download PDFInfo
- Publication number
- CN207572813U CN207572813U CN201721755807.1U CN201721755807U CN207572813U CN 207572813 U CN207572813 U CN 207572813U CN 201721755807 U CN201721755807 U CN 201721755807U CN 207572813 U CN207572813 U CN 207572813U
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- CN
- China
- Prior art keywords
- downside
- speed switch
- circuit board
- shell
- switch unit
- 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.)
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Abstract
The utility model discloses a kind of balanced type direct current quick breaker devices, including fan, shell, circuit board, Zinc-Oxide Arrester, the cover top portion is provided with the fan, the shell front and back sides are provided with connection jaws, the shell inside bottom is provided with the circuit board, the circuit board upper end is provided with the Zinc-Oxide Arrester, high-speed switch unit is provided on the downside of the Zinc-Oxide Arrester, the high-speed switch unit includes a small switch, small capacitances are provided on the downside of the small switch, resistance is provided on the right side of the small capacitances, transformer is provided on the downside of the high-speed switch unit, oscillating unit is provided on the downside of the transformer, the oscillating unit includes an inductance, bulky capacitor is provided on the downside of the inductance, power supply is provided on the left of the bulky capacitor, thyristor valve is provided on the outside of the bulky capacitor.The beneficial effects of the utility model are：Open circuit is more efficient, and result of ventilating heat dissipation is more preferable, breaker longer life expectancy.
Description
Technical field
The utility model is related to breaker apparatus design fields, are filled more particularly to a kind of balanced type direct current quick breaker
It puts.
Background technology
This year, the DC transmission system in China achieve significant achievement, although DC transmission system has been sent out at present
Open up highly developed, but the dc circuit breaker in DC transmission system is perfect not enough, existing dc circuit breaker is
It can accomplish multi-terminal link, and fast break, but since structure design is unreasonable, cause volume bigger, and disconnected
Radiator is not provided in the device of road, and the elements such as resistance in short-circuiting device can generate heat in the operating condition, it may be to disconnected
Road device causes potential risk, if being not added with shell, although the effect of heat dissipation can be played, can allow circuit board by dust
Pollution, influences breaking effect, also influences the breaker service life itself.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of balanced type direct current quick breaker
Device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of balanced type direct current quick breaker device, it is described outer including fan, shell, circuit board, Zinc-Oxide Arrester
The fan is provided at the top of shell, the shell front and back sides are provided with connection jaws, and the shell inside bottom is provided with described
Circuit board, the circuit board upper end are provided with the Zinc-Oxide Arrester, are provided on the downside of the Zinc-Oxide Arrester and quickly open
Unit is closed, the high-speed switch unit includes a small switch, small capacitances are provided on the downside of the small switch, and the small capacitances are right
Side is provided with resistance, and transformer is provided on the downside of the high-speed switch unit, is provided with oscillating unit on the downside of the transformer, institute
It states oscillating unit and includes an inductance, bulky capacitor is provided on the downside of the inductance, power supply is provided on the left of the bulky capacitor, it is described
Thyristor valve is provided on the outside of bulky capacitor.
In above structure, when normal work, the high-speed switch unit is closed, and electric current is through the high-speed switch unit
It flows through, the high-speed switch unit can bear the transient overvoltage of electric current disjunction generation, the power supply in the oscillating unit
Setting voltage is precharged to the bulky capacitor, when ground short circuit failure occurs, short circuit current rises, and short circuit current reaches one
During setting value, breaker actuation, the small capacitances and the resistance can maintain the port voltage of the high-speed switch unit steady
Weighing apparatus is allocated, at this time the capacitance and the isolated from power, then according to the direction of short circuit current, the intelligent selection triggering brilliant lock
Pipeline, the capacitance injects reverse current through the inductance to the high-speed switch unit, when the energy of the high-speed switch unit
To a certain extent, the Zinc-Oxide Arrester absorbs the energy of the high-speed switch unit for amount accumulation, in the same of breaker work
When, the fan is aerated heat dissipation to the circuit board, avoids because crossing heat affecting open circuit effect.
In order to further improve breaking efficiency, the connection jaws have two altogether, are arranged on the shell left and right side, described
Fan is connected with the shell by screw fastening, and the circuit board is connected with the shell by screw fastening.
In order to further improve breaking efficiency, the Zinc-Oxide Arrester is connected with the circuit board by screw fastening
It connects, the high-speed switch unit sets three, and is connected in series between the high-speed switch unit by conducting wire.
In order to further improve breaking efficiency, the small capacitances are connected with the resistance by conducting wire, the small capacitances with
The resistance forms one and pushes back road, pushes back road and the small switch in parallel.
In order to further improve breaking efficiency, the high-speed switch unit that the transformer main winding is connected with three is simultaneously
Connection connection, the cathode with two thyristor valves, the anode of two thyristor valves connect the transformer auxiliary winding respectively, institute
It states thyristor valve and sets four, and be symmetrical arranged two-by-two.
In order to further improve breaking efficiency, the cathode of the anode and another two thyristor valve of described two thyristor valves leads to
It crosses the inductance with the capacitance to be connected, the capacitance is connect with the power sources in parallel.
The beneficial effects of the utility model are：Open circuit is more efficient, and result of ventilating heat dissipation is more preferable, and the breaker service life is more
It is long.
Description of the drawings
Fig. 1 is a kind of solid space view of balanced type direct current quick breaker device described in the utility model；
Fig. 2 is a kind of main sectional view of balanced type direct current quick breaker device described in the utility model；
Fig. 3 is a kind of vertical view of the circuit board of balanced type direct current quick breaker device described in the utility model.
The reference numerals are as follows：
1st, connection jaws；2nd, fan；3rd, shell；4th, circuit board；5th, thyristor valve；6th, oscillating unit；7th, transformer；8th, it is quick
Switch unit；9th, Zinc-Oxide Arrester；10th, small switch；11st, small capacitances；12nd, resistance；13rd, power supply；14th, bulky capacitor；15th, it is electric
Sense.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, a kind of balanced type direct current quick breaker device, including fan 2, shell 3, circuit board 4, oxygen
Change zinc arrester 9,3 top of shell is provided with fan 2, and fan 2 is for radiating to circuit board 4, the setting of 3 front and back sides of shell
There are connection jaws 1, connection jaws 1 are used for wiring, and 3 inside bottom of shell is provided with circuit board 4, and circuit board 4 is used for arranging electronic element,
4 upper end of circuit board is provided with Zinc-Oxide Arrester 9, and Zinc-Oxide Arrester 9 is used to occur to absorb high-speed switch unit 8 during short circuit
Energy, 9 downside of Zinc-Oxide Arrester are provided with high-speed switch unit 8, and high-speed switch unit 8 is for quicking break, high-speed switch
Unit 8 includes one small switch 10, and small 10 downside of switch is provided with small capacitances 11, and 11 right side of small capacitances is provided with resistance 12, small
Capacitance 11 forms with resistance 12 and pushes back the balance of voltage that road maintains 10 both ends of small switch, and 8 downside of high-speed switch unit is provided with
Transformer 7,7 downside of transformer are provided with oscillating unit 6, and for oscillating unit 6 for occurring to inject reverse current during short circuit, oscillation is single
Member 6 includes an inductance 15, and 15 downside of inductance is provided with bulky capacitor 14, and bulky capacitor 14 is released for storing electric energy when short circuit occurs
It puts, 14 left side of bulky capacitor is provided with power supply 13, and 14 outside of bulky capacitor is provided with thyristor valve 5, and thyristor valve 5 is used for short in generation
Current direction is guided during road.
In above structure, when normal work, high-speed switch unit 8 is closed, and electric current is flowed through through high-speed switch unit 8,
High-speed switch unit 8 can bear the transient overvoltage of electric current disjunction generation, and the power supply 13 in oscillating unit 6 is to 14 preliminary filling of bulky capacitor
Electricity is to voltage is set, and when ground short circuit failure occurs, short circuit current rises, when short circuit current reaches a setting value, breaker
Action, small capacitances 11 and resistance 12 can maintain the port voltage stable equilibrium of high-speed switch unit 8, at this time capacitance and power supply 13
Isolation, then according to the direction of short circuit current, intelligent selection triggering thyristor road, capacitance is through inductance 15 to high-speed switch unit 8
Inject reverse current, when high-speed switch unit 8 energy accumulation to a certain extent, Zinc-Oxide Arrester 9 absorb high-speed switch list
The energy of member 8, while breaker works, fan 2 is aerated heat dissipation to circuit board 4, avoids because crossing heat affecting open circuit effect
Fruit.
In order to further improve breaking efficiency, connection jaws 1 have two altogether, are arranged on 3 left and right side of shell, fan 2 with it is outer
Shell 3 is connected by screw fastening, and circuit board 4 is connected with shell 3 by screw fastening, Zinc-Oxide Arrester 9 and circuit board 4
It is connected by screw fastening, high-speed switch unit 8 sets three, and is connected in series between high-speed switch unit 8 by conducting wire,
Small capacitances 11 are connected with resistance 12 by conducting wire, and small capacitances 11 form one with resistance 12 and push back road, push back Lu Yu little and open
Close 10 in parallel, 7 main winding of transformer is connected in parallel with the high-speed switch unit 8 that three are connected, and 7 auxiliary winding of transformer is respectively with two
The cathode of a thyristor valve 5, the anode connection of two thyristor valves 5, thyristor valve 5 sets four, and is symmetrical arranged two-by-two, two
The anode of a thyristor valve 5 is connected with the cathode of another two thyristor valve 5 by inductance 15 with capacitance, and capacitance is in parallel with power supply 13
Connection.
The basic principle, main feature and advantage of the utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.
Claims (6)
1. a kind of balanced type direct current quick breaker device, it is characterised in that：It takes shelter from the thunder including fan, shell, circuit board, zinc oxide
Device, the cover top portion are provided with the fan, and the shell front and back sides are provided with connection jaws, and the shell inside bottom is set
The circuit board is equipped with, the circuit board upper end is provided with the Zinc-Oxide Arrester, is set on the downside of the Zinc-Oxide Arrester
There is high-speed switch unit, the high-speed switch unit includes a small switch, small capacitances are provided on the downside of the small switch, described
Resistance is provided on the right side of small capacitances, transformer is provided on the downside of the high-speed switch unit, is provided with and shakes on the downside of the transformer
Unit is swung, the oscillating unit includes an inductance, and bulky capacitor is provided on the downside of the inductance, is provided on the left of the bulky capacitor
Power supply, the bulky capacitor outside are provided with thyristor valve.
2. a kind of balanced type direct current quick breaker device according to claim 1, it is characterised in that：The connection jaws one
Totally two, the shell left and right side is arranged on, the fan is connected with the shell by screw fastening, the circuit board
It is connected with the shell by screw fastening.
3. a kind of balanced type direct current quick breaker device according to claim 1, it is characterised in that：The zinc oxide is kept away
Thunder device is connected with the circuit board by screw fastening, and the high-speed switch unit sets three, and the high-speed switch list
It is connected in series between member by conducting wire.
4. a kind of balanced type direct current quick breaker device according to claim 1, it is characterised in that：The small capacitances with
The resistance is connected by conducting wire, and the small capacitances and the resistance form one and pushes back road, is pushed back road and small is opened with described
It closes in parallel.
5. a kind of balanced type direct current quick breaker device according to claim 1, it is characterised in that：The transformer master
Winding is connected in parallel with the high-speed switch unit that three are connected, the transformer auxiliary winding respectively with two thyristors
The cathode of valve, the anode connection of two thyristor valves, the thyristor valve sets four, and is symmetrical arranged two-by-two.
6. a kind of balanced type direct current quick breaker device according to claim 5, it is characterised in that：Described two crystalline substance locks
The anode of pipe valve is connected with the cathode of another two thyristor valve by the inductance with the capacitance, the capacitance and the power supply
It is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755807.1U CN207572813U (en) | 2017-12-15 | 2017-12-15 | A kind of balanced type direct current quick breaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755807.1U CN207572813U (en) | 2017-12-15 | 2017-12-15 | A kind of balanced type direct current quick breaker device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572813U true CN207572813U (en) | 2018-07-03 |
Family
ID=62687088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721755807.1U Expired - Fee Related CN207572813U (en) | 2017-12-15 | 2017-12-15 | A kind of balanced type direct current quick breaker device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572813U (en) |
-
2017
- 2017-12-15 CN CN201721755807.1U patent/CN207572813U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20181215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |