CN2667769Y - Controllable damper - Google Patents
Controllable damper Download PDFInfo
- Publication number
- CN2667769Y CN2667769Y CN 03254846 CN03254846U CN2667769Y CN 2667769 Y CN2667769 Y CN 2667769Y CN 03254846 CN03254846 CN 03254846 CN 03254846 U CN03254846 U CN 03254846U CN 2667769 Y CN2667769 Y CN 2667769Y
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- arc
- electrode
- damping
- resistance
- circuit
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Abstract
The utility model discloses a damper that automatically enters into the circuit through discharging gap during the process of high voltage transient and automatically be disconnected with the circuit after finishing damping. The utility model comprises two electrodes that form certain clearance in the arc extinguishing chamber of the arc distinguishing chute. One end of the one of the electrode extends out of the arc distinguishing chamber to be connected with external circuit and one end of one of the electrode extends out of the arc distinguishing chamber. The same arc distinguishing circles or the same damping resistances are connected. The damping resistance is connected with external circuit through a lead terminal. After the gas is discharged, the utility model can press the arc into the arc distinguishing chute to finish arc distinguishing through self-built magnetic field or external field. When the voltage is low, the utility model can naturally distinguish the arc. Thus, the utility model can be disconnected with the circuit after finishing the processes of connecting the damper, damping.
Description
The utility model relates to a kind of damper that reduces electric capacity, inductor loop vibration, accelerates oscillatory extinction, and is especially a kind of by the controlled access in gap, and has the damper of arc-rupturing capacity.
At present, widely used damper is to be made of damping resistance and place in circuit, and place in circuit has node place in circuit, inductance---capacitor resonant circuit, fast saturation reactance etc. usually.Place in circuit usually and damping resistance be in series; place in circuit under certain condition; by the electromagnetism positive energy exchange in damping resistance absorption electric capacity, the inductor loop vibration; accelerate the speed of oscillatory extinction; make electrical appliance avoid the long duration of action of high multiple overvoltage, overcurrent, thereby the protection electrical appliance is not damaged.But these places in circuit have complex structure, poor reliability, and the transient process in the inapplicable high voltage circuit.Because the common response speed of node access type circuit is low, access speed does not catch up with transient process; And inductance---capacitor resonant circuit only is applicable to the access of certain single-frequency power circuit usually; The speed saturable reactor then only is applicable to low-frequency range overvoltage access way.Therefore, general damper is difficult to be applicable to the damping of high voltage transient process, and this also is the root place that the high voltage transient process generally is difficult to damping.
In order to overcome the deficiency that existing limit Buddhist nun device can not be used for the damping of high pressure transient process, the utility model provides a kind of controllable type damper, but this controlled standard damper is the high speed place in circuit not only, damping high voltage transient process, and can after finishing damping, withdraw from circuit automatically, reduce the unnecessary energy consumption of damping resistance.
The technical scheme that the utility model technical solution problem is adopted is: in being provided with the insulation shell of two-way arc-chute, installation can be adjusted two electrodes of interelectrode gap size, and a utmost point of electrode is used to connect external circuit, and another electrode connects damping resistance.When the controllable type damper used separately, all or part of coiled hollow of the resistance wire of damping resistance inductance coil also can adopt other electric conducting material coiling one inductance coil, connects a damping resistance again.Work as gap breakdown, damping resistance inserts, damping resistance is in damping high voltage transient process, to set up a magnetic field, and make two interelectrode electric arcs be subjected to the effect of magnetic field force, and electric arc is elongated, press to arc-chute, make electric arc finish back blow-out rapidly, inductance coil and damping resistance are withdrawed from circuit, avoid the long-time place in circuit power consumption of damping resistance in transient process.Arrange that therefore, the arc extinguishing process is not influenced by the magnetic direction and the sense of current owing to adopt two-way arc-chute.When the controllable type damper is used to have external magnetic field occasion such as air core reactor, the damping resistance of controllable type damper then adopts noninductive winding to constitute, and utilize the external magnetic field to elongate electric arc, and electric arc is pressed to arc-chute make arc extinction, make the controllable type damper when transient process takes place, insert damping resistance rapidly, in time withdraw from circuit after finishing the damping of transient process, avoid the long-time place in circuit power consumption of damping resistance.When voltage is low, also can be and natural arc extinguishing is finished the access and the blow-out of electric arc nature of damper not by magnetic field force, damping resistance process out of service, so promptly good damping action is played in vibration to high voltage, saves energy again, improves the reliability and the useful life of damper.
The beneficial effects of the utility model are, when vibrating, high voltage inserts damper fast, reduce vibration, quicken oscillatory extinction, the destruction that makes electrical appliance be subjected to high multiple overvoltage, overcurrent less, guarantee that simultaneously damping resistance is finished the damping task after, in time withdraw from circuit, reduce the energy consumption of damping resistance, make it to have simple in structure, insert fast, withdraw from time, reliable characteristics.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model
F is the active force of magnetic field to electric arc among the figure
Fig. 2 is that of the present utility model first implemented illustration
Fig. 3 is the I-I cutaway view of arc control device part
Fig. 4 is second of the present utility model and implements illustration
1. electrode A, 2. electrode B, 3. Petersen coils, 4. damping resistances among the figure
5. lead terminal 6. arc-chutes 7. arc control device shells
In Fig. 1, electrode A (1) constitutes a discharging gap with electrode B (2), and by electrode B (2) serial connection damping resistance (4), damping resistance (4) is drawn through lead terminal (5).F is the active force of magnetic field to electric arc, discharging gap between electrode A (1) and the electrode B (2) is adjusted according to working voltage, in the time of should accomplishing that normal voltage is applied between electrode A (1) and the lead terminal (5), can not discharge in the gap, and when overvoltage spark-over of gap, at this moment Petersen coil (13) damping resistance (4) place in circuit, transient process is carried out damping, that formed by self or outside magnetic field produces a horizontal power F to electric arc, the electric arc elongation is made arc extinction, state of insulation is recovered in the gap, and damping resistance (4) withdraws from circuit, finishes the access of whole damping and withdraws from process.
In embodiment illustrated in fig. 2, electrode A (1) one end stretches out outside the arc control device shell (7), be used to connect external circuit, the other end stretches in the arc control device shell (7), electrode B (a 2) then end is stretched out outside the arc control device shell (7), be used for same Petersen coil (3) and connect, the other end stretches in the arc control device shell (7) and constitutes required discharging gap with electrode A (1).The size of gap clearance is finished by adjusting electrode A (1) and electrode B (2), Petersen coil (3) one ends are connected with electrode B (2), one end of the same damping resistance of the other end (4) is connected, the other end of damping resistance (4) is connected with lead terminal (5), and lead terminal (5) is used for being connected with external circuit.After surpassing certain value at voltage between electrode A (1) and the lead terminal (5), gap breakdown, Petersen coil (3) and damping resistance (4) place in circuit, when electric current flows through Petersen coil (3), form a magnetic field and on electric arc, produce a cross force, electric arc is elongated, press to arc-chute (6), make arc extinction, Petersen coil (3) and damping resistance (4) is out of service, finish whole access damping and withdraw from process.In this embodiment, the not only available resistance wire coiling of Petersen coil (3) also can adopt other conductor material to make, and constitutes only to be used to produce the coil in arc extinguishing magnetic field.The not only available wire-wound resistor of damping resistance (4) also can adopt other resistance, as formations such as ceramic resistor, graphite resistance, metalfilmresistors.
In another embodiment shown in Fig. 4, electrode A (1) and electrode B (2) constitute a dwell set and are loaded in the have arc-chute arc control device shell (7) of (6), electrode A (1) is connected with electrode B (2) through the gap, electrode B (2) is connected with damping resistance (4), damping resistance (4) is drawn through lead terminal (5), in this embodiment, be not with magnetic field to generate element, arc extinguishing is natural arc extinguishing or external magnetic field arc extinguishing, and damping resistance (4) also can adopt formations such as other resistance such as ceramic resistor, graphite resistance, metalfilmresistor.
Claims (5)
1. controllable type damper, electrode A is electrically connected with electrode B (2), Petersen coil (3), damping resistance (4), lead terminal (5) order through the gap, it is characterized in that: electrode A (1) and electrode B (2) form a gap, are assemblied in the have arc-chute arc control device shell of (6) to constitute a discharging gap with arc extinguishing ability.The electrode B of discharging gap (2) is connected with the end that the energising back produces the Petersen coil (3) in magnetic field, and the other end of damping resistance (4) is connected with lead terminal (5).
2. controllable type damper according to claim 1 is characterized in that: electrode A (1) and electrode B (2) are assemblied in the arc control device shell of arc-chute (6) of two-way arc extinguishing function.
3. controllable type damper according to claim 1 is characterized in that: Petersen coil (3) but the resistance wire coiling form, also available other electric conducting material coiling forms.
4. controllable type damper according to claim 1 is characterized in that: damping resistance (4) but the resistance wire coiling form, also other resistance such as useful ceramics resistance, graphite resistance, metalfilmresistor are made.
5. controllable type damper according to claim 1 is characterized in that: during no external magnetic field, device Petersen coil (3) is set up arc extinguishing magnetic field, when external magnetic field or voltage are low, does not then install Petersen coil (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254846 CN2667769Y (en) | 2003-07-16 | 2003-07-16 | Controllable damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254846 CN2667769Y (en) | 2003-07-16 | 2003-07-16 | Controllable damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667769Y true CN2667769Y (en) | 2004-12-29 |
Family
ID=34328522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03254846 Expired - Fee Related CN2667769Y (en) | 2003-07-16 | 2003-07-16 | Controllable damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667769Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107756B (en) * | 2005-01-10 | 2012-05-23 | 德恩及索恩两合股份有限公司 | Surge arrester with two divergent electrodes and a spark gap operating between the electrodes |
-
2003
- 2003-07-16 CN CN 03254846 patent/CN2667769Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107756B (en) * | 2005-01-10 | 2012-05-23 | 德恩及索恩两合股份有限公司 | Surge arrester with two divergent electrodes and a spark gap operating between the electrodes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Ni Xuefeng Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |