CN208174254U - One kind being based on artificial zero passage direct current rapid on-off apparatus - Google Patents
One kind being based on artificial zero passage direct current rapid on-off apparatus Download PDFInfo
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- CN208174254U CN208174254U CN201820685840.XU CN201820685840U CN208174254U CN 208174254 U CN208174254 U CN 208174254U CN 201820685840 U CN201820685840 U CN 201820685840U CN 208174254 U CN208174254 U CN 208174254U
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Abstract
The utility model relates to one kind to be based on artificial zero passage direct current rapid on-off apparatus, including capacitor C, reactor L, pyrogenic process clearance G PA, high-speed eddy switch K0, znr device MOV and fuse FU；The end of incoming cables of the capacitor C, the end of incoming cables of high-speed eddy switch K0, fuse FU end of incoming cables meet the end of incoming cables AL1 of direct current rapid on-off apparatus, the leading-out terminal of capacitor C is started to exchange fire the end of incoming cables of method clearance G PA, the end of incoming cables of the outlet termination reactor L of pyrogenic process clearance G PA；The fuse FU outlet termination znr device MOV end of incoming cables, the leading-out terminal of znr device MOV, the leading-out terminal of high-speed eddy switch K0, reactor L leading-out terminal meet the leading-out terminal AL2 of direct current rapid on-off apparatus.The utility model has many advantages, such as that safe and reliable, connecting-disconnecting function is strong, can effectively cut-off various over current faults in DC line, reduces impact of the fault current to electrical equipment in electric system, avoids the further expansion of line fault.
Description
Technical field
The utility model relates to direct current transmissions of electricity to cut-off technical field, especially a kind of quickly to be opened based on artificial zero passage direct current
Disconnected device.
Background technique
Dc circuit breaker is very important and essential equipment in direct current field device.China's dc circuit breaker is long-term
Import is relied on, external producer is even more to carry out technology blockage to its key technology, limits China's dc circuit breaker R & D Level
Development.The test capability deficiency of domestic dc circuit breaker also becomes an important factor for its development of influence.Not due to dc circuit breaker
It can domesticize, high purchase cost constrains the ability of China's DC fields system integration production domesticization.
The dc circuit breaker that existing market DC line uses, that there is volumes is larger, involve great expense, connecting-disconnecting function is smaller
The shortcomings that, be unable to satisfy the needs of electric system, make electric system operation there are certain hidden danger.
Utility model content
The purpose of this utility model is to provide one kind effectively to cut-off direct current when DC power transmission line breaks down
Various over current faults in route reduce impact of the short circuit current to electrical equipment in electric system, avoid line fault into one
It walks widened based on artificial zero passage direct current rapid on-off apparatus.
To achieve the above object, the utility model uses following technical scheme：One kind is quick based on artificial zero passage direct current
Breaking device, including the capacitor C for storing electric energy, the reactor L for forming high frequency oscillation with capacitor C, for fast
Speed is connected and capacitor C and reactor L is made to form the pyrogenic process clearance G PA of high frequency oscillation, high-speed eddy switch K0, for limiting electricity
The znr device MOV of container C both end voltage and fuse for protecting znr device MOV
FU；The end of incoming cables of the capacitor C, the end of incoming cables of high-speed eddy switch K0, fuse FU end of incoming cables connect direct current quick-speed turning on-off
The end of incoming cables AL1 of device, the leading-out terminal of capacitor C are started to exchange fire the end of incoming cables of method clearance G PA, and the outlet of pyrogenic process clearance G PA terminates electricity
The end of incoming cables of anti-device L；The end of incoming cables of the outlet termination znr device MOV of the fuse FU, zinc oxide nonlinear
The leading-out terminal of resistor MOV, the leading-out terminal of high-speed eddy switch K0, reactor L leading-out terminal connect direct current rapid on-off apparatus
Leading-out terminal AL2.
The high-speed eddy switch K0 uses vacuum extinction breaker, and high-speed eddy switch K0 is by being mounted in power distribution cabinet
Controller control it and cut-off.
As shown from the above technical solution, the beneficial effects of the utility model are：The utility model have it is safe and reliable, cut-off
The advantages that ability is strong can effectively cut-off various over current faults in DC line, reduce fault current and electrically set in electric system
Standby impact avoids the further expansion of line fault.
Detailed description of the invention
Fig. 1 is the electrical schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of be based on artificial zero passage direct current rapid on-off apparatus, including for storing electric energy capacitor C,
For forming the reactor L of high frequency oscillation with capacitor C, for fast conducting and capacitor C and reactor L is made to form high frequency shake
The pyrogenic process clearance G PA that swings, high-speed eddy switch K0, for the znr device MOV of limiting capacitance device C both end voltage
And the fuse FU for protecting znr device MOV；The end of incoming cables of the capacitor C, high-speed eddy switch K0
End of incoming cables, fuse FU end of incoming cables meet the end of incoming cables AL1 of direct current rapid on-off apparatus, the leading-out terminal of capacitor C is started to exchange fire method
The end of incoming cables of clearance G PA, the end of incoming cables of the outlet termination reactor L of pyrogenic process clearance G PA；The outlet of the fuse FU terminates oxidation
The end of incoming cables of zinc nonlinear resistor MOV, the outlet of the leading-out terminal, high-speed eddy switch K0 of znr device MOV
It holds, the leading-out terminal of reactor L meets the leading-out terminal AL2 of direct current rapid on-off apparatus.Znr device MOV is for preventing
Only capacitor C is damaged because of over-voltage.
The high-speed eddy switch K0 uses vacuum extinction breaker, and high-speed eddy switch K0 is by being mounted in power distribution cabinet
Controller control it and cut-off.
The working principle of the utility model is as follows：When DC power transmission line outlet failure, the controller in power distribution cabinet is vertical
Separating brake order is issued to high-speed eddy switch K0, while issuing turn-on command to pyrogenic process clearance G PA；When pyrogenic process clearance G PA is led
After logical, capacitor C and reactor L in device form high frequency oscillation electric discharge, the power frequency of the high-frequency discharge electric current and route immediately
Electric current is superimposed to form zero crossing, and high-speed eddy switch K0 is made to complete arc extinguishing in the zero crossing of superposition.Electric current stream in route at this time
Cross the circuit capacitor C；When capacitor C both end voltage rises to znr device MOV conducting voltage, zinc oxide is non-thread
Property resistor MOV is connected immediately, and electric current flows through the circuit znr device MOV in route at this time；As pyrogenic process clearance G PA
After shutdown, znr device MOV is also immediately turned off, and that completes DC power transmission line cut-offs various over current faults.
In conclusion the utility model has many advantages, such as that safe and reliable, connecting-disconnecting function is strong, can effectively cut-off in DC line
Various over current faults reduce impact of the fault current to electrical equipment in electric system, avoid the further expansion of line fault.
Claims (2)
1. one kind is based on artificial zero passage direct current rapid on-off apparatus, it is characterised in that：Including for storing electric energy capacitor C,
For forming the reactor L of high frequency oscillation with capacitor C, for fast conducting and capacitor C and reactor L is made to form high frequency shake
The pyrogenic process clearance G PA that swings, high-speed eddy switch K0, for the znr device MOV of limiting capacitance device C both end voltage
And the fuse FU for protecting znr device MOV；The end of incoming cables of the capacitor C, high-speed eddy switch K0
End of incoming cables, fuse FU end of incoming cables meet the end of incoming cables AL1 of direct current rapid on-off apparatus, the leading-out terminal of capacitor C is started to exchange fire method
The end of incoming cables of clearance G PA, the end of incoming cables of the outlet termination reactor L of pyrogenic process clearance G PA；The outlet of the fuse FU terminates oxidation
The end of incoming cables of zinc nonlinear resistor MOV, the outlet of the leading-out terminal, high-speed eddy switch K0 of znr device MOV
It holds, the leading-out terminal of reactor L meets the leading-out terminal AL2 of direct current rapid on-off apparatus.
2. according to claim 1 be based on artificial zero passage direct current rapid on-off apparatus, it is characterised in that：The high-speed eddy
Switch K0 uses vacuum extinction breaker, and high-speed eddy switch K0 controls it by the controller being mounted in power distribution cabinet and cut-offs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820685840.XU CN208174254U (en) | 2018-05-09 | 2018-05-09 | One kind being based on artificial zero passage direct current rapid on-off apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820685840.XU CN208174254U (en) | 2018-05-09 | 2018-05-09 | One kind being based on artificial zero passage direct current rapid on-off apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN208174254U true CN208174254U (en) | 2018-11-30 |
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| CN201820685840.XU Active CN208174254U (en) | 2018-05-09 | 2018-05-09 | One kind being based on artificial zero passage direct current rapid on-off apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365601A (en) * | 2018-05-09 | 2018-08-03 | 安徽徽电科技股份有限公司 | One kind being based on artificial zero passage direct current rapid on-off apparatus |
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2018
- 2018-05-09 CN CN201820685840.XU patent/CN208174254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365601A (en) * | 2018-05-09 | 2018-08-03 | 安徽徽电科技股份有限公司 | One kind being based on artificial zero passage direct current rapid on-off apparatus |
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