CN2151536Y - High voltage falldown circuit breaker - Google Patents
High voltage falldown circuit breaker Download PDFInfo
- Publication number
- CN2151536Y CN2151536Y CN 93227496 CN93227496U CN2151536Y CN 2151536 Y CN2151536 Y CN 2151536Y CN 93227496 CN93227496 CN 93227496 CN 93227496 U CN93227496 U CN 93227496U CN 2151536 Y CN2151536 Y CN 2151536Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- high voltage
- main
- utility
- falldown
- 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
- Breakers (AREA)
Abstract
The utility model belongs to a circuit protective device, mainly solving the problem of poor performance existing in fall down fuses which are arranged at the branch points of power distribution lines at present. The utility model is characterized in that on the basis of an original high voltage fall down fuse, an excitation coil is connected in series (is in a CT connection) in a main loop, a main contact is connected with a main circuit through a copper strand, and an armature is arranged with the excitation coil together.
Description
The utility model relates to circuit protection device.
At present; 10KV distribution line branching-point, distribution transformer primary side or on fuse switch that the 10KV of 63KV electric substation outlet side is installed and post oil circuit breaker; the former does not pass a test owing to its fuse characteristics; dispersed big; can't cooperate with the superior and the subordinate protections, can only when short circuit current greatly, play the protection switch effect.Oil circuit breaker is backward in technique on the post, and performance is single, and overall dimensions are excessive, the cost height, and service behaviour is bad, wastes very big.
At foregoing circuit protective device situation, the utility model provides a kind of high-voltage drop type circuit breaker, can substitute simultaneously that oil circuit breaker carries out work on fuse and the post, guarantees supply line's safety.
The utility model is achieved in that on the basis of former high voltage drop-out type fuse cutout, serial connection in major loop (or CT connects) magnet exciting coil.Main contact is connected with main circuit by copper stranded conductor, and armature and magnet exciting coil are installed together.When main circuit current reaches rated value, armature movement, dynamic/static contact cut-offs circuit under the effect of turnover plate type back-moving spring, a kind ofly collect fuse protected and dynamic/static contact and cut-off for protecting novel electrical equipment in the two poles of the earth of one thereby formed.
The utility model has the advantages that: the high-voltage drop type circuit breaker belongs to the novel electrical equipment of quick-speed turning on-off, two-stage protection; action accurately and reliably; can well cooperate with the superior and the subordinate's protection, can carry out good complementary fit between the protection of the two poles of the earth, when fault current is big; magnet exciting coil can be used as the backup protection of fuse; fault current hour, fuse is as the backup protection of magnet exciting coil, and this product technology is advanced in performance; cost is low, is suitable for producing in batches.
Fig. 1 is its structural representation, and wherein 1 is flap, and 2 is main contact, and 3 is armature, and 4 is magnet exciting coil, and 5 are following turnover panel, and 6 is carriage.
Below in conjunction with accompanying drawing an embodiment is described: on the basis of former high voltage drop-out type fuse cutout, serial connection in major loop (or CT connects) magnet exciting coil, main contact is connected with main circuit by copper stranded conductor, and armature and magnet exciting coil are installed together.Use when installing, integral body is pressed into pressure mouth gets final product.
Claims (1)
1, a kind of high-voltage drop type circuit breaker, mainly form by carriage 6, flap 1, following turnover panel 5 etc., it is characterized in that series connection in major loop (or CT connects) magnet exciting coil 4, main contact 2 is connected with main circuit by copper stranded conductor, and armature 3 is installed together with magnet exciting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227496 CN2151536Y (en) | 1993-03-06 | 1993-03-06 | High voltage falldown circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227496 CN2151536Y (en) | 1993-03-06 | 1993-03-06 | High voltage falldown circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151536Y true CN2151536Y (en) | 1993-12-29 |
Family
ID=33804755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93227496 Expired - Fee Related CN2151536Y (en) | 1993-03-06 | 1993-03-06 | High voltage falldown circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151536Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
-
1993
- 1993-03-06 CN CN 93227496 patent/CN2151536Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN102646559B (en) * | 2012-04-11 | 2014-08-13 | 国家电网公司 | Automatic disconnecting device of high-voltage falling type switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2151536Y (en) | High voltage falldown circuit breaker | |
| CN110021486B (en) | Automatic reclosing device for voltage-loss tripping | |
| CN202513569U (en) | Transformer neutral point overvoltage protector | |
| CN2927427Y (en) | Structure for installing isolated switch in medium-voltage switch cabinet | |
| CN2556830Y (en) | Short-circuit current combined limiter | |
| CN201985606U (en) | Quick access device for public emergency power supply | |
| CN201611763U (en) | Intelligent type fast current-limiting protection device with large capacity | |
| CN206060167U (en) | A kind of controller of intelligent leakage circuit breaker | |
| CN205029235U (en) | Hard magnetic vacuum circuit breaker cubical switchboard | |
| CN217159267U (en) | 10KV PT cabinet breakdown safety state feedback circuit | |
| CN213845195U (en) | Permanent magnet operating mechanism for circuit breaker | |
| CN210957782U (en) | 35kV transformer substation sectional bus system based on mixed superconducting current limiter | |
| CN211790731U (en) | 35KV bus zero-sequence overvoltage protection device of 110KV transformer substation | |
| CN217388016U (en) | Small-resistance grounding power distribution device wiring structure capable of reducing station blackout | |
| CN218335419U (en) | PT voltage secondary electric switching circuit | |
| CN212968619U (en) | Novel transformer cabinet | |
| CN211790777U (en) | Novel SVG isolator device | |
| CN203312625U (en) | Integrated ring main unit electric controller | |
| CN2450815Y (en) | Power-uninterrupted leakage protector | |
| CN203277254U (en) | Universal breaker | |
| CN2202987Y (en) | Mineral explosion-insulating high-voltage vacuum switch | |
| CN2739783Y (en) | Voltage-clamping shunt direct-off circuit breaker using diode | |
| CN2158135Y (en) | Ten-thousands times safety tube | |
| CN207852571U (en) | First and second fusion intelligent vacuum circuit breaker | |
| CN2565183Y (en) | Under-voltage open-phase monitor |
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 |