CN204333922U - A kind of low voltage isolation switch in parallel - Google Patents
A kind of low voltage isolation switch in parallel Download PDFInfo
- Publication number
- CN204333922U CN204333922U CN201420729004.9U CN201420729004U CN204333922U CN 204333922 U CN204333922 U CN 204333922U CN 201420729004 U CN201420729004 U CN 201420729004U CN 204333922 U CN204333922 U CN 204333922U
- Authority
- CN
- China
- Prior art keywords
- low voltage
- voltage isolation
- parallel
- isolation switch
- switch
- 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
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 37
- 239000004411 aluminium Substances 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
The utility model discloses a kind of low voltage isolation switch in parallel, comprise two low voltage isolation switchs be connected by upper and lower connection aluminium; Described upper and lower connection aluminium is connected respectively by set bolt and upper and lower device clamp, and upper device clamp fixes inlet wire cable, lower device clamp fixes outlet cable; Described two low voltage isolation switchs install fuse link respectively.Described low voltage isolation switch in parallel forms an isolating switch of three-phase four-wire low-voltage electric power system.The utility model utilizes the shunting principle of parallel resistance, the electric current flowing through low voltage isolation switch is shunted, because the caloric value of electrical equipment original paper is directly proportional to the current squaring passed through, thus the caloric value of every isolating switch is that geometry multiple reduces, effectively prevent the fault such as fuse failure or dynamic/static contact heating burn disconnecting link from occurring, can effectively realize distribution transformer safety and economic operation, there is promotional value widely.
Description
Technical field
The utility model relates to power switch technical field, particularly relates to a kind of low voltage isolation switch in parallel.
Background technology
Out of doors distribution transformer low-pressure side isolating switch be used as the overload of transformer, short circuit and load current deciliter; a kind of low-voltage variation electrical equipment of distribution transformer indispensability; existing low-pressure side isolating switch is fixed in metallic iron load by insulating porcelain piece and mounting plate, and isolating switch is serially connected in the output power main line of transformer.Operationally, the power patch panel of isolating switch is connected with power supply, and load wiring plate is connected with output main line, and fuse member (fuse piece) is communicated with power supply, load wiring plate by solid sheet bolt.Conductive plate is under vertical impetus, and namely tight lock turning joint isolating switch is in closing position, when electric power system be short-circuited, the fault such as overcurrent time, fault current exceedes fuse member load current value, overflow fault current by fuse member quick-break, thus ensure that line security and device security, this kind of isolating switch now extensively adopted always.In Long-Time Service, find that existing isolating switch is in phenomenons such as the frequent blow out fuse of load boom period or dynamic/static contact heating burn disconnecting links.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of shunting, reduces the low voltage isolation switch in parallel of body temperature.
For achieving the above object, technical solution adopted in the utility model is: a kind of low voltage isolation switch in parallel, comprises the low voltage isolation switch of two same models, and described two low voltage isolation switchs are connected by upper and lower connection aluminium; Described upper and lower connection aluminium is connected respectively by set bolt and upper and lower device clamp.
Described upper device clamp fixes inlet wire cable, and described lower device clamp fixes outlet cable.
Described two low voltage isolation switchs install fuse link respectively.
Described low voltage isolation switch in parallel is arranged at three-phase four-wire low-voltage electric power system, as isolation of system switch.
Compared with the prior art, innovative point of the present utility model is embodied in:
1, the utility model utilizes the shunting principle of parallel resistance, the electric current flowing through low voltage isolation switch is shunted, because the caloric value of electrical equipment original paper is directly proportional to the current squaring passed through, thus the caloric value of every isolating switch is that geometry multiple reduces, and effectively prevents the fault such as fuse failure or dynamic/static contact heating burn disconnecting link from occurring;
2, the utility model adopts the gold utensils such as the low voltage isolation switch of 2 same models and existing device clamp, possesses material and easily purchases and the easy function such as enforcement;
3, the utility model energy available protecting distribution transforming, fail safe is high, good economy performance, has promotional value widely.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model.
Number in the figure is respectively: connect device clamp, 5-inlet wire cable, 6-fixing threaded hole, 7-outlet cable under aluminium, the upper device clamp of 4a-, 4b-under the former low voltage isolation switch of 1a-, 1b-low voltage isolation switch in parallel, 2a-former low voltage isolation switch fuse link, 2b-low voltage isolation switch fuse link in parallel, 3a-connect aluminium, 3b-.
Embodiment
As shown in Figure 1, a kind of low voltage isolation switch in parallel, comprises a low voltage isolation switch 1a and the another low voltage isolation switch 1b in parallel with it; The low voltage isolation switch 1b of described low voltage isolation switch 1a and another and its parallel connection respectively by be connected aluminium 3a and be connected with lower connection aluminium 3b; Described upper and lower connection aluminium is connected respectively by set bolt and upper device clamp 4a and lower device clamp 4b, and upper device clamp fixes inlet wire cable 5, lower device clamp fixes outlet cable 7; Described two low voltage isolation switchs all install fuse link 2a and 2b; Described low voltage isolation switch in parallel forms an isolating switch.Run and prove; 3 isolating switches described in installing in distribution transformer low-pressure side realize the phase line shunting of three-phase four-wire system; effectively prevent the fault such as fuse piece fusing or dynamic/static contact heating burn disconnecting link from occurring; realize the safety and economic operation of distribution transformer; the utility model can as 0.4kV outdoor low voltage isolating switch, and the Control protection being specially adapted to export at town and country distribution transformer basic routing line uses.
Claims (4)
1. a low voltage isolation switch in parallel, is characterized in that: the low voltage isolation switch comprising two same models, and described two low voltage isolation switchs are connected by upper and lower connection aluminium; Described upper and lower connection aluminium is connected respectively by set bolt and upper and lower device clamp.
2. a kind of low voltage isolation switch in parallel as claimed in claim 1, it is characterized in that: described upper device clamp fixes inlet wire cable, described lower device clamp fixes outlet cable.
3. a kind of low voltage isolation switch in parallel as claimed in claim 1, is characterized in that: described two low voltage isolation switchs install fuse link respectively.
4. a kind of low voltage isolation switch in parallel as claimed in claim 1, is characterized in that: described low voltage isolation switch in parallel is arranged at three-phase four-wire low-voltage electric power system, as isolation of system switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729004.9U CN204333922U (en) | 2014-11-28 | 2014-11-28 | A kind of low voltage isolation switch in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729004.9U CN204333922U (en) | 2014-11-28 | 2014-11-28 | A kind of low voltage isolation switch in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333922U true CN204333922U (en) | 2015-05-13 |
Family
ID=53170237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729004.9U Expired - Fee Related CN204333922U (en) | 2014-11-28 | 2014-11-28 | A kind of low voltage isolation switch in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204333922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552463A (en) * | 2015-06-30 | 2016-05-04 | 宇龙计算机通信科技(深圳)有限公司 | Storage battery assembly and terminal |
| CN111220838A (en) * | 2018-11-26 | 2020-06-02 | 三菱电机株式会社 | Semiconductor device with a plurality of semiconductor chips |
-
2014
- 2014-11-28 CN CN201420729004.9U patent/CN204333922U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552463A (en) * | 2015-06-30 | 2016-05-04 | 宇龙计算机通信科技(深圳)有限公司 | Storage battery assembly and terminal |
| CN105552463B (en) * | 2015-06-30 | 2018-05-15 | 宇龙计算机通信科技(深圳)有限公司 | A kind of accumulator cell assembly and terminal |
| CN111220838A (en) * | 2018-11-26 | 2020-06-02 | 三菱电机株式会社 | Semiconductor device with a plurality of semiconductor chips |
| CN111220838B (en) * | 2018-11-26 | 2022-07-01 | 三菱电机株式会社 | Semiconductor device with a plurality of semiconductor chips |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2015015811A (en) | Method to detect arcing faults using switched elements at outlet. | |
| CN102222893B (en) | A kind of fast failure demand limiter based on current-carrying isolator | |
| CN100546142C (en) | A kind of shunted exciter tripping type single-phase short circuit protecting equipment | |
| CN204333922U (en) | A kind of low voltage isolation switch in parallel | |
| CN205122461U (en) | An alternating current high voltage isolation switch | |
| CN107192912A (en) | Distribution box failure detector circuit | |
| CN204333940U (en) | A kind of intelligence revises nonlinear resistance type resonance eliminator | |
| CN203367780U (en) | Electrical closing blocking device | |
| CN204118561U (en) | Switch cabinet drawer is with being flexible coupling | |
| CN203179828U (en) | Household fuse box | |
| CN102842911A (en) | Mine-used dynamic reactive power compensation device | |
| CN203299988U (en) | An electrical fire monitoring apparatus | |
| CN102750865A (en) | Somatosensory practical training circuit and device for wire fused in case of circuit overload | |
| CN202564798U (en) | Intelligent harmonic and arc extinction switch cabinet | |
| CN202872329U (en) | Circuit breaker with overvoltage protection function | |
| CN207557431U (en) | Fuse switch melting fault monitoring device | |
| CN102255289A (en) | Thyristor alternating current power regulator control system and application thereof in electrical heating temperature control | |
| CN104037740A (en) | Arc fault disconnecting device | |
| CN204117895U (en) | A kind of low-voltage direct circuit breaker is without electric arc breaking device | |
| CN208401316U (en) | A kind of intelligent type low-voltage earthing resistance cabinet | |
| CN204792666U (en) | Fuse -element malfunction alerting ware | |
| CN203504132U (en) | Overcurrent protection device for mining mobile transformer station of flame-proof type | |
| CN203674700U (en) | Photoelectric arc light protection system | |
| CN202564119U (en) | Main disconnecting link device of low impedance and high voltage isolation switch | |
| CN205319678U (en) | Boiler overtemperature protection device for track |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151128 |