CN105336537A - High-voltage gas switching equipment with low temperature protection device - Google Patents
High-voltage gas switching equipment with low temperature protection device Download PDFInfo
- Publication number
- CN105336537A CN105336537A CN201510758342.4A CN201510758342A CN105336537A CN 105336537 A CN105336537 A CN 105336537A CN 201510758342 A CN201510758342 A CN 201510758342A CN 105336537 A CN105336537 A CN 105336537A
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- CN
- China
- Prior art keywords
- protection device
- temperature protection
- low
- circuit breaker
- gases
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to high-voltage gas switching equipment with a low temperature protection device, which comprises circuit breaker single poles. Each circuit breaker single pole comprises an arc-extinguishing chamber, a single-phase support and a transmission crank arm box sequentially connected, and the low temperature protection device is arranged on the connection device of the single-phase support and the transmission crank arm box. Through arranging the low temperature protection device between the circuit breaker single-phase support and the transmission crank arm box of the switching equipment and coating an inter-pole connection gas pipe with a heat insulation material, the temperature difference in the case of SF6 flow can be ensured not to be over large, and under a condition of not changing the structure and the operation parameters of a conventional product, substation equipment can operate safely and reliably in harsh conditions.
Description
Technical field
The present invention relates to technical field of electric equipment, particularly relate to a kind of gases at high pressure switchgear with low-temperature protection device.
Background technology
Outdoor high voltage switchgear be often with SF6 gas as arc extinguishing and dielectric, have and cut-off that capacity is large, insulation level advantages of higher, in high pressure and the extensive use of superhigh pressure field.When in equipment, the circuit breaker of one of Primary Component runs, three pole gases are interconnected, and adopt pointer type density relay protect its gas pressure and monitor.According to the characteristic of SF6 gas, SF6 fills have well insulation and break performance under rated pressure 0.6MPa under normal temperature (20 DEG C) state; But when equal pressure environment temperature is below-30 DEG C, SF6 gas liquefaction phenomenon will occur, and greatly reduces the safe handling of switchgear and circuit breaker, have a strong impact on the safety and reliability that product runs.Especially in extreme low temperature areas (temperature is low to moderate-40 ~-60 DEG C) such as east the Northwest of China and outlet Russia, conventional products cannot meet instructions for use.
Summary of the invention
The present invention aims to provide a kind of gases at high pressure switchgear with low-temperature protection device, can guarantee that SF6 gas is not liquefied under low-temperature condition.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of gases at high pressure switchgear with low-temperature protection device; comprise circuit breaker one pole; described circuit breaker one pole comprises the arc control device connected successively, single-phase pillar and transmission crank arm box, and the jockey of described single-phase pillar and transmission crank arm box is provided with low-temperature protection device.
Preferably, described circuit breaker one pole has 3, and 3 circuit breaker one poles are arranged on base, and the interpolar that base is provided with connection 3 circuit breaker one poles connects tracheae, and described connection tracheae outer wall is enclosed with heat-insulating heat-preserving material.
Preferably, described low-temperature protection device is heating tape, one week around jockey periphery, described heating tape.
Further, 3 circuit breaker one poles at equal intervals, be arranged in parallel.
Preferably, described base is provided with the heater A to heat-insulating heat-preserving material heating.
Further, described low-temperature protection device is connected with the heater B in mechanism case, and described heater B is controlled by the thermostat in mechanism case.
Further, described heater A is provided with 3 at equal intervals.
Compared with prior art, the present invention has following beneficial effect:
By the single-phase pillar of the circuit breaker of switchgear with low-temperature protection device is set between transmission crank arm box and is connected tracheae outer wrapping heat-insulating heat-preserving material at interpolar; when guaranteeing that SF6 gas circulates, the temperature difference is unsuitable excessive; do not changing under conventional products structure and operational factor condition, substation equipment also can be run safely and reliably under rigor condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of circuit breaker one pole;
Fig. 4 is the structural representation of base;
In figure: 1-circuit breaker one pole, 2-low-temperature protection device, 3-arc control device, the single-phase pillar of 4-, 5-transmission crank arm box, 6-interpolar connect tracheae, 7-mechanism case, 8-base, 9-heater A.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1; the gases at high pressure switchgear with low-temperature protection device disclosed by the invention; comprise circuit breaker one pole 1; circuit breaker one pole 1 comprises the arc control device 3, single-phase pillar 4 and the transmission crank arm box 5 that connect successively; the jockey of single-phase pillar 4 and transmission crank arm box 5 is provided with low-temperature protection device 2; low-temperature protection device 2 is connected with the heater B in mechanism case 7, and described heater B is controlled by the thermostat in mechanism case 7.Low-temperature protection device 2 is preferably heating tape, one week around jockey periphery, heating tape.When ambient temperature is lower than thermostat preset value, heater B will devote oneself to work, and guarantee that the SF6 gas in each air chamber is not liquefied, after temperature rises to certain value, heater B will quit work.
Circuit breaker one pole 1 has 3,3 circuit breaker one poles 1 at equal intervals, be installed in parallel on base 8, three circuit breaker one poles 1 form three grades of circuit breakers, the interpolar that base 8 is provided with connection 3 circuit breaker one poles 1 connects tracheae 6, connect tracheae 6 outer wall and be enclosed with heat-insulating heat-preserving material, base 8 is provided with heater A9, and heater A9 is provided with 3 at equal intervals.
Certainly; the present invention also can have other numerous embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (7)
1. one kind has the gases at high pressure switchgear of low-temperature protection device; it is characterized in that: comprise circuit breaker one pole (1); described circuit breaker one pole (1) comprises the arc control device (3) connected successively, single-phase pillar (4) and transmission crank arm box (5), and the jockey of described single-phase pillar (4) and transmission crank arm box (5) is provided with low-temperature protection device (2).
2. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 1; it is characterized in that: described circuit breaker one pole (1) has 3; 3 circuit breaker one poles (1) are arranged on base (8); the interpolar that base (8) is provided with connection 3 circuit breaker one poles (1) connects tracheae (6), and described connection tracheae (6) outer wall is enclosed with heat-insulating heat-preserving material.
3. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 1, it is characterized in that: described low-temperature protection device (2) is heating tape, one week around jockey periphery, described heating tape.
4. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 2, it is characterized in that: 3 circuit breaker one poles (1) at equal intervals, be arranged in parallel.
5. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 2, it is characterized in that: described base (8) is provided with the heater A (9) to heat-insulating heat-preserving material heating.
6. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 1; it is characterized in that: described low-temperature protection device (2) is connected with the heater B in mechanism case (7), described heater B is controlled by the thermostat in mechanism case (7).
7. there is the gases at high pressure switchgear of low-temperature protection device as claimed in claim 5, it is characterized in that: described heater A (9) is provided with 3 at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758342.4A CN105336537A (en) | 2015-11-09 | 2015-11-09 | High-voltage gas switching equipment with low temperature protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758342.4A CN105336537A (en) | 2015-11-09 | 2015-11-09 | High-voltage gas switching equipment with low temperature protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105336537A true CN105336537A (en) | 2016-02-17 |
Family
ID=55286995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510758342.4A Pending CN105336537A (en) | 2015-11-09 | 2015-11-09 | High-voltage gas switching equipment with low temperature protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105336537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844892A (en) * | 2016-06-27 | 2019-06-04 | Abb瑞士股份有限公司 | SF6 insulated circuit breakers system with heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925084A (en) * | 2006-09-11 | 2007-03-07 | 浙江华仪电器科技股份有限公司 | Porcelain knob breaker |
| CN103779132A (en) * | 2013-01-22 | 2014-05-07 | 上海乐研电气科技有限公司 | Sulfur hexafluoride high-voltage circuit breaker used in cold regions |
| CN205751994U (en) * | 2015-11-09 | 2016-11-30 | 川开电气有限公司 | A kind of gases at high pressure switchgear with low-temperature protection device |
-
2015
- 2015-11-09 CN CN201510758342.4A patent/CN105336537A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925084A (en) * | 2006-09-11 | 2007-03-07 | 浙江华仪电器科技股份有限公司 | Porcelain knob breaker |
| CN103779132A (en) * | 2013-01-22 | 2014-05-07 | 上海乐研电气科技有限公司 | Sulfur hexafluoride high-voltage circuit breaker used in cold regions |
| CN205751994U (en) * | 2015-11-09 | 2016-11-30 | 川开电气有限公司 | A kind of gases at high pressure switchgear with low-temperature protection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844892A (en) * | 2016-06-27 | 2019-06-04 | Abb瑞士股份有限公司 | SF6 insulated circuit breakers system with heater |
| CN109844892B (en) * | 2016-06-27 | 2020-11-03 | Abb电网瑞士股份公司 | SF6 insulated circuit breaker system with heater |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |