CN2317543Y - Outdoor load isolating switch on column - Google Patents
Outdoor load isolating switch on column Download PDFInfo
- Publication number
- CN2317543Y CN2317543Y CN 97225019 CN97225019U CN2317543Y CN 2317543 Y CN2317543 Y CN 2317543Y CN 97225019 CN97225019 CN 97225019 CN 97225019 U CN97225019 U CN 97225019U CN 2317543 Y CN2317543 Y CN 2317543Y
- Authority
- CN
- China
- Prior art keywords
- arc
- contact
- strip
- extinguishing
- load
- 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.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to an outdoor load isolating switch on column with an arc-extinguishing device. The utility model is characterized in that an arcing contact and a bumping block are arranged on a conduction knife switch; the arc-extinguishing device is arranged at the position closed to a main contact of the load isolating switch; the arc-extinguishing device comprises an arcing contact, a flexible connection, an arc-extinguishing chamber, an arc extinguishing fixed contact, an arc extinguishing moving contact lever and an operating mechanism driving the extinguishing fixed contact and the arc extinguishing moving contact lever to open and close; that a rated load current is not cut by an external arc is realized, and simultaneously a visible isolating fracture is provided. The utility model can combine an outdoor isolating switch and an outdoor load switch together and can simultaneously not be monitored and maintained.
Description
The utility model relates to load-break switch on the outdoor post that is used for industrial power distribution, rural power grids, city proper 10KV level electrical network, load-break switch on particularly a kind of outdoor post that has an arc-control device.
Existing outdoor post load switch, all can only cut-off rated load electric current 400～630 peaces as sulphur hexafloride circuit breaker, pvs (pole-mounted vacuum switch) on oil switch, the post on the post, and there is not a visible isolation fracture, so electric power system in use will increase a 1.0KV outdoor disconnector simultaneously, to resulting in hand cramps in the electric power system use, cost is also high, owing to leakage of oil, gas leakage, vacuum degree descend, makes the electrical property instability of on-pole switch once more.
The purpose of this utility model provides load-break switch on a kind of outdoor post, and it also has visible isolation fracture when realizing no outside arc cutting rated load electric current.
Because high voltage isolator on the existing outdoor post comprises the conduction plug-in strip and drives the conduction plug-in strip and rotates the rotating shaft of carrying out branch, closing a floodgate, to achieve these goals, the utility model adopts following technical solution on prior art:
(1) on the conduction plug-in strip, is provided with arcing contact and collision block;
(2) arc-control device is set near the load-break switch main contact, this arc-control device comprises arcing contact, is flexible coupling, arc control device, arc extinguishing fixed contact, arc extinguishing movable feeler lever and drive the operating mechanism that the dynamic and static contact of arc extinguishing carries out branch, closes, and this mechanism mainly is made of the connecting lever, pivoted arm, connecting rod, the extension spring that cooperate with the motion of conduction plug-in strip.
When load-break switch needs separating brake, use the operating grip rotating shaft, driving the conduction plug-in strip rotates, at this moment, the arcing contact and the arcing contact in the arc-control device that are located on the conduction plug-in strip are connected earlier, make electric current by movable feeler lever and fixed contact in the introducing arc-control device that is flexible coupling, the conduction plug-in strip entirely separately after, be arranged on collision block on the conduction plug-in strip and stir and conduct electricity the connecting lever rotation that the plug-in strip motion cooperates, drive the pivoted arm rotation simultaneously, move by the moving arc feeler lever of connecting rod pulling, extension spring elongation and energy storage, in turning to after, under the tension of extension spring, make the pivoted arm quick rotation, moving arc feeler lever is done straight line accelerated motion, and moving arc feeler lever and quiet arc contact high-speed separation are cut off arc extinguishing with load current, the deionization gas that arc extinguishing produces is discharged by the slit of arc control device, realizes that it does not have the cut-out performance of outside electric arc; The plug-in strip that conducts electricity simultaneously remains on the separating brake position after rotating separating brake, has visible isolation fracture.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is load-break switch three installation gate-dividing state structural representations linked together on the outdoor post of present embodiment;
Fig. 2 is a load-break switch B phase assembly structure figure on the outdoor post of present embodiment;
Fig. 3 is the structure chart of arc-control device among Fig. 2;
Fig. 4 is Fig. 3 left view.
Load-break switch adopts single-phase assembling on the outdoor post of present embodiment, and three is linked together rack-mount, is installed in then on the outdoor electric pole of electrical network.As shown in Figure 1, single-phase switch (1), (3), (5) are installed on the installing rack (2), and with link rod (6) with the three-phase interlock.Simultaneously, on each single-phase load-break switch, also be provided with following constructional device:
(1) on conduction plug-in strip (7), is provided with arcing contact (9) and collision block (10) (as shown in Figure 2);
(2) arc-control device (4) (as shown in Figure 1 and Figure 2) is set near the load-break switch main contact, by Fig. 3, Fig. 4 as can be known, this arc-control device includes arcing contact (8), be flexible coupling (19), arc control device (21), arc extinguishing fixed contact (16), arc extinguishing movable feeler lever (15) and drive the operating mechanism that the dynamic and static contact of arc extinguishing carries out branch, closes, and this mechanism is mainly by the connecting lever (23), pivoted arm (17), connecting rod (20), extension spring (18) formation that cooperate with the motion of conduction plug-in strip.
When the load-break switch divide-shut brake,, use operating grip in the electric pole bottom, rotating shaft (14) makes rotating shaft rotate 90 °, and driving conduction plug-in strip (7) changes 90 °, make B phase switch (3) main switch cutter divide-shut brake and make other two-phase divide-shut brake simultaneously, realize the three-phase divide-shut brake by link rod (6).Because main switch cutter separating brake moment, arcing contact (9) on the conduction plug-in strip (7) is connected earlier with the arcing contact (8) in the arc-control device (4), make electric current by movable feeler lever (15) and fixed contact (16) in (19) the introducing arc-control devices (4) that are flexible coupling, simultaneously, collision block (10) on conduction plug-in strip (7) is stirred and is conducted electricity connecting lever (23) rotation that the plug-in strip motion cooperates, driving pivoted arm (17) simultaneously rotates, and it is mobile by the moving arc feeler lever (15) of connecting rod (20) pulling, extension spring (18) elongation and energy storage, after in turning to, under the tension of extension spring (18), make pivoted arm (17) quick rotation, moving arc feeler lever (15) is done straight line accelerated motion, moving arc feeler lever (15) and quiet arc contact (16) high-speed separation, load current is cut off arc extinguishing, and the deionization gas that arc extinguishing produces is discharged by the slit in the arc control device; Reach the cut-out performance of no outside electric arc; The plug-in strip that conducts electricity simultaneously remains on the separating brake position after rotating separating brake, has visible isolation fracture.
In a word, the normal conduction of switch be by binding clip (13) to main contact (12), export through being flexible coupling to binding clip (11) to conducting electricity plug-in strip (7) again.
During separating brake, the main switch cutter divides earlier, and arcing contact (9), (8) back are divided, and electric current is introduced arc-control device (4) cut off arc extinguishing.
In sum, this practicality compared with prior art has the following advantages:
1, because arc-control device is a kind of independently mechanism, it is attached to be installed in the main contact switch Closely, can be used in easily various occasions vertical, that level is installed.
2, because arc-control device has adopted the slit arc quenching principle, can reach nothing oil, not have very Empty, no sulfur hexafluoride gas, the gas that produces when cut-offfing is discharged by slit, and rain Water, snow, dust can not enter arc-chutes, thereby can accomplish to exempt from supervision, non-maintaining.
3, the utility model unites two into one outdoor disconnector and outdoor load switch, Finish the function of two kinds of products at a product, and electrical property, mechanical performance safety Reliably.
4, the utility model such as adapted motor drive mechanism, for the power system remote operation automatic Change the condition of having created.
Claims (1)
1, load-break switch on a kind of outdoor post comprises conduction plug-in strip (7) and drives conduction plug-in strip (7) and rotates the rotating shaft (14) of carrying out branch, closing a floodgate, and it is characterized in that:
(1) on conduction plug-in strip (7), is provided with arcing contact (9) and collision block (10);
(2) arc-control device (4) is set near the load-break switch main contact, this arc-control device comprises arcing contact (8), be flexible coupling (19), arc control device (21), arc extinguishing fixed contact (16), arc extinguishing movable feeler lever (15) and drive the operating mechanism that the dynamic and static contact of arc extinguishing carries out branch, closes, and this mechanism is mainly by the connecting lever (23), pivoted arm (17), connecting rod (20), extension spring (18) formation that cooperate with the motion of conduction plug-in strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225019 CN2317543Y (en) | 1997-08-27 | 1997-08-27 | Outdoor load isolating switch on column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225019 CN2317543Y (en) | 1997-08-27 | 1997-08-27 | Outdoor load isolating switch on column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2317543Y true CN2317543Y (en) | 1999-05-05 |
Family
ID=33939185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97225019 Expired - Fee Related CN2317543Y (en) | 1997-08-27 | 1997-08-27 | Outdoor load isolating switch on column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2317543Y (en) |
-
1997
- 1997-08-27 CN CN 97225019 patent/CN2317543Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |