CN201829822U - High-voltage quick current-limiting fuse protective device - Google Patents
High-voltage quick current-limiting fuse protective device Download PDFInfo
- Publication number
- CN201829822U CN201829822U CN2010205786037U CN201020578603U CN201829822U CN 201829822 U CN201829822 U CN 201829822U CN 2010205786037 U CN2010205786037 U CN 2010205786037U CN 201020578603 U CN201020578603 U CN 201020578603U CN 201829822 U CN201829822 U CN 201829822U
- Authority
- CN
- China
- Prior art keywords
- cabinet door
- voltage
- switch device
- bus
- over
- 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
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model provides a high-voltage quick current-limiting fuse protective device, relating to a circuit protective device. The high-voltage quick current-limiting fuse protective device consists of a head part, a voltage meter, a wall-penetrating sleeve, an upper cabinet door, an illumination lamp, a lower cabinet door, an instrument chamber, a bus chamber, a composite switch device, a voltage transformer, an over-voltage protector and a fuse; the instrument chamber is arranged below the head part; the upper cabinet door is arranged outside the instrument chamber; the voltage meter is arranged on the upper cabinet door; the lower cabinet door is arranged below the upper cabinet door; the illumination lamp is arranged on the lower cabinet door; the rear side of the instrument chamber is provided with the bus chamber; the side wall of the bus chamber is provided with the wall-penetrating sleeve; the bus chamber is connected with the composite switch device; the composite switch device is arranged below the instrument chamber; one end of the voltage transformer is connected with the instrument chamber and the composite switch device respectively; the other end of the voltage transformer is connected with the over-voltage protector; and the fuse is arranged at the left side of the over-voltage protector. The current-limiting protector has quick breaking speed, has the characteristics of large drop-out current and strong drop-out capability, and has reliable performance, simple structure on equipment and wide application range.
Description
Technical field:
The utility model relates to a kind of circuit protection device, relates in particular to the quick current limliting fuse protecting device of a kind of high pressure.
Background technology:
Power plant motor and transformer-supplied and ring network power supply unit and confession power distribution station institute, on supply power mode, what use basically is circuit breaker.In the face of the protection problem of power supply subscriber equipment and circuit, conventional circuit breaker cost height, maintenance is big, and speed is slow, is substituted by vacuum circuit-breaker gradually.But vacuum circuit-breaker cut-offs speed certain restriction is arranged also, thorough disengagement failure source often reaches the purpose of protection.A large amount of accidents show; when short circuit accident occurs in a cycle is by normal cutoff within the 20ms; then can not bring damage sequence; circuit breaker then can't satisfy (20ms) such rate request; the circuit breaker standard-sized sheet break time is made up of three parts: intrinsic operate time+arcing time of relay protection operate time+circuit breaker; and relay actuation time at the soonest with regard to 20ms, (switch off time is 40ms-2s to circuit breaker.) therefore, circuit breaker can only be born normal switch load function, and can not reach the real protection purpose.
The utility model content:
The purpose of this utility model provides the quick current limliting fuse protecting device of high pressure, and the disconnected speed of its current limiting fuse branch (opening) is fast, and it is big to have a drop-out current, the characteristic that breaking capacity is strong, and dependable performance, device structure is simple, and is applied widely.
In order to solve the existing problem of background technology; the utility model is by the following technical solutions: it is by brows; voltmeter; wall bushing; the Over-The-Counter door; illuminating lamp; lower cabinet door; the control room; bus-bar room; combination switch device; voltage transformer; overvoltage protector and fuse are formed; the brows below is provided with the control room; the control room is outside equipped with the Over-The-Counter door; voltmeter is arranged on the Over-The-Counter door; Over-The-Counter student side is provided with lower cabinet door; lower cabinet door is provided with illuminating lamp; control room's rear side is provided with bus-bar room; the bus-bar room sidewall is provided with wall bushing; bus-bar room links to each other with combination switch device; combination switch device is arranged on the below, control room; voltage transformer one end links to each other with combination switch device with the control room respectively, and the other end links to each other with overvoltage protector, and fuse is arranged on the overvoltage protector left side.
The utility model has adopted the compound mode of advanced on-load switch+current limiting fuse, and the disconnected speed of the extraordinary current limiting fuse branch (opening) of employing is fast, disjunction fast within the 2-5ms, it is big to have drop-out current, the characteristic that breaking capacity is strong, device structure is simple, and applied widely.
Description of drawings:
Fig. 1 is an external structure schematic diagram of the present utility model;
Fig. 2 is an internal structure schematic diagram of the present utility model.
Embodiment:
Shown in seeing figures.1.and.2; this embodiment is by the following technical solutions: it is by brows 1; voltmeter 2; wall bushing 3; Over-The-Counter door 4; illuminating lamp 5; lower cabinet door 6; control room 7; bus-bar room 8; combination switch device 9; voltage transformer 10; overvoltage protector 11 and PT fuse 12 are formed; brows 1 below is provided with control room 7; control room 7 is outside equipped with Over-The-Counter door 4; voltmeter 2 is arranged on the Over-The-Counter door 4; Over-The-Counter door 4 belows are provided with lower cabinet door 6; lower cabinet door 6 is provided with illuminating lamp 5; control room's 7 rear sides are provided with bus-bar room 8; bus-bar room 8 sidewalls are provided with wall bushing 3; bus-bar room 8 links to each other with combination switch device 9; combination switch device 9 is arranged on 7 belows, control room; voltage transformer 10 1 ends link to each other with combination switch device 9 with control room 7 respectively; the other end links to each other with overvoltage protector 11, and fuse 12 is arranged on overvoltage protector 11 left sides.
This embodiment has adopted the compound mode of advanced on-load switch+current limiting fuse, and the disconnected speed of the extraordinary current limiting fuse branch (opening) of employing is fast, disjunction fast within the 2-5ms, it is big to have drop-out current, the characteristic that breaking capacity is strong, device structure is simple, and applied widely.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the quick current limliting fuse protecting device of high pressure; it is characterized in that it is by brows (1); voltmeter (2); wall bushing (3); Over-The-Counter door (4); illuminating lamp (5); lower cabinet door (6); control room (7); bus-bar room (8); combination switch device (9); voltage transformer (10); overvoltage protector (11) and fuse (12) are formed; brows (1) below is provided with control room (7); control room (7) is outside equipped with Over-The-Counter door (4); voltmeter (2) is arranged on the Over-The-Counter door (4); Over-The-Counter door (4) below is provided with lower cabinet door (6); lower cabinet door (6) is provided with illuminating lamp (5); control room (7) rear side is provided with bus-bar room (8); bus-bar room (8) sidewall is provided with wall bushing (3); bus-bar room (8) links to each other with combination switch device (9); combination switch device (9) is arranged on below, control room (7); voltage transformer (10) one ends link to each other with combination switch device (9) with control room (7) respectively; the other end links to each other with overvoltage protector (11), and fuse (12) is arranged on overvoltage protector (11) left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786037U CN201829822U (en) | 2010-10-26 | 2010-10-26 | High-voltage quick current-limiting fuse protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786037U CN201829822U (en) | 2010-10-26 | 2010-10-26 | High-voltage quick current-limiting fuse protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829822U true CN201829822U (en) | 2011-05-11 |
Family
ID=43968336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205786037U Expired - Fee Related CN201829822U (en) | 2010-10-26 | 2010-10-26 | High-voltage quick current-limiting fuse protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465141A (en) * | 2016-06-03 | 2017-12-12 | 有能集团江苏电气有限公司 | A kind of vacuum circuit breaker |
-
2010
- 2010-10-26 CN CN2010205786037U patent/CN201829822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465141A (en) * | 2016-06-03 | 2017-12-12 | 有能集团江苏电气有限公司 | A kind of vacuum circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201312112Y (en) | Overvoltage monitoring and comprehensive protective device for medium voltage power network | |
| CN107171431B (en) | Uninterrupted power regulating equipment, uninterrupted power regulating system and uninterrupted power regulating control method | |
| CN202524078U (en) | Arc suppression and overvoltage protection device controller | |
| CN201829822U (en) | High-voltage quick current-limiting fuse protective device | |
| CN201821032U (en) | Overvoltage suppression cabinet | |
| CN203014377U (en) | Power grid overvoltage inhibition apparatus | |
| CN203813447U (en) | Transformer station high voltage reactive automatic compensation device | |
| CN202564798U (en) | Intelligent harmonic and arc extinction switch cabinet | |
| CN203367840U (en) | Outdoor distribution transformer low-voltage protection switch box | |
| CN102142680A (en) | Intelligent resistance-capacitance absorption and over-voltage comprehensive protection device | |
| CN207282396U (en) | A kind of breaker of high-tension switch gear | |
| CN201388042Y (en) | Central high-voltage switch equal-height cabinet | |
| CN201113399Y (en) | High-voltage circuit-breaker spring-operated device energy storage electric motor over-voltage protection device | |
| CN204464778U (en) | Be applicable to the high-voltage electric device of ring network power supply system | |
| CN206059935U (en) | A kind of inflated type permanent-magnet breaker cabinet | |
| CN205070286U (en) | Distribution looped netowrk PT cabinet | |
| CN201387999Y (en) | Central high-low cabinet type intelligent arc extinction, harmonic elimination and route selection device | |
| CN202111467U (en) | Multi-polar low voltage circuit breaker | |
| CN201821006U (en) | Heavy-current high-speed on/off controller | |
| CN203225698U (en) | High-voltage motor speed regulation controlling means for internal mixer use | |
| CN202333796U (en) | Overvoltage overcurrent protection switch | |
| CN204348541U (en) | A kind of Acoustooptic indicator of outdoor AC high-voltage isolating switch combined floodgate degree | |
| CN203135432U (en) | Arc-resonance extinction route-selecting over-voltage protection device | |
| CN203434617U (en) | Overvoltage protection combined breaker | |
| CN203774746U (en) | Mobile line protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20131026 |