CN203205329U - Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer - Google Patents
Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer Download PDFInfo
- Publication number
- CN203205329U CN203205329U CN 201320173939 CN201320173939U CN203205329U CN 203205329 U CN203205329 U CN 203205329U CN 201320173939 CN201320173939 CN 201320173939 CN 201320173939 U CN201320173939 U CN 201320173939U CN 203205329 U CN203205329 U CN 203205329U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- case
- voltage transformer
- built
- intelligent branch
- 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
Abstract
The utility model relates to an intelligent branch boundary vacuum circuit breaker of a built-in voltage transformer, including a circuit breaker housing, a voltage transformer and a zero sequence current transformer. The circuit breaker housing is inside provided with a vacuum arc-extinguishing chamber, the voltage transformer is installed inside the circuit breaker housing, and the vacuum arc-extinguishing chamber and the zero sequence current transformer are connected. The vacuum circuit breaker is simple in structure, helps to reduce the overall dimensions of the intelligent branch boundary vacuum circuit breaker by placing the voltage transformer inside the circuit breaker housing, and is easy to install.
Description
Technical field
The utility model relates to a kind of intelligent branch demarcation vacuum circuit breaker of built-in voltage instrument transformer, belongs to the safe connection device technical field of outdoor grid.
Background technology
In recent years, along with the enforcement of projects to upgrade rural power grids, rural area 10KV distribution line is transform as the phase three-wire three supply power mode of isolated neutral by original two lines, one ground supply power mode.The change of 10KV distribution line supply power mode has strengthened the insulation level of distribution line, has reduced the trip-out rate of distribution line, has improved power supply reliability, has reduced line loss, and is significant.But take in the actual motion of rural area 10KV distribution line of new supply power mode, single phase ground fault often occurs, particularly descend at severe weather conditions such as rainy season, strong wind and snow, single phase ground fault is frequent occurrence especially, has had a strong impact on safety, the economical operation of converting equipment and power distribution network.
Along with state net company progressively strengthens the County Power Plant safety in production, manages and the management intensity of good service, each County Power Plant has also strengthened the power distribution station line loss of small towns power supply station jurisdiction, the appraisal management of equipment safety operation, but because technological means does not catch up with, so that power supply station is large to rural power worker management difficulty, economic technique analysis also relies on artificial estimation.
The voltage transformer of most branch's demarcation vacuum circuit breakers that exist is to be exposed to the outside basically on the market, thereby so that whole small product size is excessive, and because the weatherability of epoxy resin or silica gel material is poor, normal operation that can not real-time ensuring branch demarcation vacuum circuit breaker.
The utility model content
For defects, it is a kind of simple in structure that the purpose of this utility model is to provide, the intelligent branch demarcation vacuum circuit breaker of a kind of built-in voltage instrument transformer that overall dimension is little.
The technical scheme that adopts of the utility model is for this reason: comprise case for circuit breaker, voltage transformer and zero sequence current mutual inductor, be provided with vacuum interrupter in the described case for circuit breaker, described voltage transformer is installed in case for circuit breaker inside, and described vacuum interrupter is connected with zero sequence current mutual inductor.
Described case for circuit breaker bottom is provided with base, and a side of case for circuit breaker bottom is provided with earth terminal, also is furnished with the divide-shut brake drag link mechanism on the case for circuit breaker.
Be provided with aviation socket in the bottom of described case for circuit breaker.
It is a kind of simple in structure that the purpose of this utility model is to provide, by voltage transformer being built in case for circuit breaker inside, thereby so that the overall dimension of whole intelligent branch demarcation vacuum circuit breaker diminishes, be convenient to the installation of intelligent branch demarcation vacuum circuit breaker, because voltage transformer can be not affected by environment, can effectively guarantee the normal operation of intelligent branch demarcation vacuum circuit breaker.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1 is case for circuit breaker, the 2nd among the figure, voltage transformer, the 3rd, zero sequence current mutual inductor, the 4th, vacuum interrupter, the 5th, base, the 6th, earth terminal, the 7th, divide-shut brake drag link mechanism, the 8th, aviation socket.
Embodiment
A kind of intelligent branch demarcation vacuum circuit breaker of built-in voltage instrument transformer, comprise case for circuit breaker 1, voltage transformer 2 and zero sequence current mutual inductor 3, be provided with vacuum interrupter 4 in the described case for circuit breaker 1, described voltage transformer 2 is installed in case for circuit breaker 1 inside, and described vacuum interrupter 4 is connected with zero sequence current mutual inductor 3.
Case for circuit breaker of the present utility model 1 bottom is provided with base 5, and a side of case for circuit breaker 1 bottom is provided with earth terminal 6, also is furnished with divide-shut brake drag link mechanism 7 on the case for circuit breaker 1.
Be provided with aviation socket 8 in the bottom of case for circuit breaker 1 of the present utility model.
Claims (3)
1. the intelligent branch demarcation vacuum circuit breaker of a built-in voltage instrument transformer, it is characterized in that, comprise case for circuit breaker, voltage transformer and zero sequence current mutual inductor, be provided with vacuum interrupter in the described case for circuit breaker, described voltage transformer is installed in case for circuit breaker inside, and described vacuum interrupter is connected with zero sequence current mutual inductor.
2. the intelligent branch demarcation vacuum circuit breaker of a kind of built-in voltage instrument transformer according to claim 1, it is characterized in that, described case for circuit breaker bottom is provided with base, and a side of case for circuit breaker bottom is provided with earth terminal, also is furnished with the divide-shut brake drag link mechanism on the case for circuit breaker.
3. the intelligent branch demarcation vacuum circuit breaker of a kind of built-in voltage instrument transformer according to claim 1 and 2 is characterized in that, is provided with aviation socket in the bottom of described case for circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173939 CN203205329U (en) | 2013-04-09 | 2013-04-09 | Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173939 CN203205329U (en) | 2013-04-09 | 2013-04-09 | Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203205329U true CN203205329U (en) | 2013-09-18 |
Family
ID=49149410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320173939 Expired - Fee Related CN203205329U (en) | 2013-04-09 | 2013-04-09 | Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203205329U (en) |
-
2013
- 2013-04-09 CN CN 201320173939 patent/CN203205329U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203707794U (en) | Solar energy household integrated grid-connected intelligent power generation system | |
| CN201590374U (en) | Outdoor high-voltage intelligent demarcation vacuum circuit breaker | |
| CN202495808U (en) | Power grid monitoring system | |
| CN203310960U (en) | Bird defecation simulating device | |
| CN206710519U (en) | A kind of substation safety detection means | |
| CN103293455B (en) | Bird defecation simulating device | |
| CN205070460U (en) | Civilian photovoltaic power generation and box with a net | |
| CN203205329U (en) | Intelligent branch boundary vacuum circuit breaker of built-in voltage transformer | |
| CN206992492U (en) | A kind of stand for power transmission and distribution | |
| CN202268279U (en) | Direct-current grounding prevention device for operating auxiliary switch of isolating switch | |
| CN203205330U (en) | Intelligent branch boundary vacuum circuit breaker of built-in zero sequence current transformer | |
| CN205212246U (en) | Intelligent control system of box -type substation | |
| CN204167854U (en) | A kind of cable termination tower apparatus | |
| CN104103449A (en) | Intelligent branch division circuit breaker with built-in voltage transformer | |
| CN203103798U (en) | Suspension type outdoor and low-voltage comprehensive distribution metering box | |
| CN207530413U (en) | A kind of embedded intelligently voltage boosting transformation device of wind-power tower | |
| CN201865860U (en) | Lightning-protection device for fan | |
| CN201638738U (en) | Novel outdoor vacuum breaker with isolating switch | |
| CN205880606U (en) | Automatic monitoring device of water supply pump station | |
| CN208571708U (en) | Novel rural power grids distribution system | |
| CN205755155U (en) | A kind of distance high voltage line maintenance safeguards special monitoring box | |
| CN204597313U (en) | Ring radiation shape GIS substation structure | |
| CN204332667U (en) | A kind of rain proof type current transformer | |
| CN204391897U (en) | A kind of integrated monitoring system | |
| CN203536919U (en) | External lightening eliminating system for power distribution equipment |
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: 20130918 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |