CN202134398U - External current transformer of geographic information system GIS - Google Patents
External current transformer of geographic information system GIS Download PDFInfo
- Publication number
- CN202134398U CN202134398U CN201120106708U CN201120106708U CN202134398U CN 202134398 U CN202134398 U CN 202134398U CN 201120106708 U CN201120106708 U CN 201120106708U CN 201120106708 U CN201120106708 U CN 201120106708U CN 202134398 U CN202134398 U CN 202134398U
- Authority
- CN
- China
- Prior art keywords
- support tube
- current transformer
- gis
- supporting tube
- tube
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0356—Mounting of monitoring devices, e.g. current transformers
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a closed combined electrical apparatus technical field, particularly to an external current transformer of a geographic information system GIS, which includes a housing, coils, a supporting tube and transition tubes; the supporting tube is a cylindrical tube and is sleeved on an outer side of a conductor of the GIS combined electrical apparatus; the supporting tube and the conductor are in detachable connection; the coils are disposed on the outer side of the supporting tube; the housing is disposed on the outer side of the coils; the transition tubes are provided on two ends of the supporting tube for plugging; one of the transition tubes is fixedly connected with the supporting tube and the other transition tube is detachably connected on the supporting tube; and an insulating material used for isolation is provided between the supporting tube and the transition tube which are in detachable connection. The external current transformer is convenient to mount, maintain and overhaul and eliminates the need for disassembly and assembly of the GIS due to failure of the current transformer.
Description
Technical field
The utility model relates to a kind of gas insulated metal enclosed swit chgear equipment technical field, specifically a kind of GIS external current transformer.
Background technology
In the gas insulated metal enclosed swit chgear, mainly comprise circuit breaker, isolation earthing switch summation current transformer etc.Wherein, current transformer plays the effect of metering primary current size in the line, we can say that its importance is very big.At present the traditional current transformer of GIS adopts embedding structure more, during the GIS operation owing to have good structural design and good SF
6Insulating gas, therefore rare fault; But supporting with it built-in current transformer because complex structure reaches the fixing not firm of secondary connection, causes fault often to take place.After built-in current transformer breaks down; Need maintenance, but built-in GIS there is not independent air chamber, therefore; When built-in GIS is overhauled; Need the GIS of supporting current transformer is carried out interruption maintenance at interval, and relate to the recovery of gas and the removal of current transformer casing, maintenance workload is very big.
Summary of the invention
The utility model provides a kind of external current transformer in order to overcome above-mentioned defective, has the I&M of being convenient to, and convenient maintenance reduces the characteristics because of the probability of current mulual inductor malfunction dismounting GIS.
The technical scheme that the utility model adopts is: a kind of GIS external current transformer; Comprise shell and coil, also comprise support tube and transitional cylinder, described support tube is a circular cylinder; It is enclosed within the outside of conductor in the GIS combined electrical apparatus; Support tube is detachable the connection with conductor, and described coil is arranged on the outside of support tube, and shell is arranged on the coil outside; The transitional cylinder that the two ends of the annular space that forms at support tube and shell are provided with the annular flange shape carries out shutoff; Two transitional cylinders one of them with support tube for being fixedly connected, another transitional cylinder is detachable the connection with support tube, carries out
at interval for being provided with insulating material between the support tube that removably connects and the transitional cylinder.
Be connected with bolt through retainer plate between the support tube that removably connects and the transitional cylinder, described insulating material is arranged between retainer plate and the support tube.
The utility model is installed in the outside of conductor in the GIS combined electrical apparatus through support tube, forms the external current transformer, and this structure is convenient to I&M, and convenient maintenance reduces the probability because of current mulual inductor malfunction dismounting GIS; The utility model is arranged to detachable the connection with one of them transitional cylinder and support tube; And in the junction insulating material is set and carries out the interval; Effectively avoided the outside possibility that forms the circuit closed loop of external current mutual inductor coil; Prevent that transformer casing from forming current path, improved the GIS reliability of operation.
Description of drawings
Fig. 1 is the sketch map of the utility model.
Embodiment
Combine accompanying drawing that the utility model is further described at present; Fig. 1 is a kind of embodiment of the utility model; Comprise shell 5, coil 3, support tube 6 and transitional cylinder 1; Described support tube 6 is a circular cylinder, and support tube 6 is enclosed within the outside of conductor 7 in the GIS combined electrical apparatus, and support tube 6 is detachable the connection with conductor 7.Described coil 3 is arranged on the outside of support tube 6, and shell 5 is arranged on coil 3 outsides, and shell 5 outsides also are provided with binding post 4.The transitional cylinder 1 that the two ends of the annular space that forms at support tube 6 and shell 5 are provided with the annular flange shape carries out shutoff; In two transitional cylinders 1 one of them and support tube 6 are for being fixedly connected; Present embodiment is welding; Another transitional cylinder 1 and support tube 6 is detachable the connection, carries out interval
for being provided with insulating material between the support tube 6 of detachable connection and the transitional cylinder 1.
In the present embodiment; Be connected with bolt through retainer plate 2 between the support tube 6 that removably connects and the transitional cylinder 1; Promptly flange is set in the end of support tube 6; Be provided with and the flange corresponding grooves on the retainer plate 2, utilize retainer plate 2 to push down the flange of support tube 6, through bolt retainer plate 2 is connected with transitional cylinder 1 again.Insulating material in the present embodiment is arranged between retainer plate 2 and the support tube 6.The transitional cylinder 1 of the utility model also can directly be connected with support tube 6 through bolt, perhaps other conspicuous detachable connected modes.
The utlity model has and be convenient to I&M, convenient maintenance reduces the characteristics such as probability because of current mulual inductor malfunction dismounting GIS.
Claims (2)
1. GIS external current transformer; Comprise shell and coil, it is characterized in that: also comprise support tube and transitional cylinder, described support tube is a circular cylinder; It is enclosed within the outside of conductor in the GIS combined electrical apparatus; Support tube is detachable the connection with conductor, and described coil is arranged on the outside of support tube, and shell is arranged on the coil outside; The transitional cylinder that the two ends of the annular space that forms at support tube and shell are provided with the annular flange shape carries out shutoff; Two transitional cylinders one of them with support tube for being fixedly connected, another transitional cylinder is detachable the connection with support tube, carries out
at interval for being provided with insulating material between the support tube that removably connects and the transitional cylinder.
2. GIS external current transformer according to claim 1 is characterized in that: be connected with bolt through retainer plate between the support tube that removably connects and the transitional cylinder, described insulating material is arranged between retainer plate and the support tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120106708U CN202134398U (en) | 2011-04-13 | 2011-04-13 | External current transformer of geographic information system GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120106708U CN202134398U (en) | 2011-04-13 | 2011-04-13 | External current transformer of geographic information system GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134398U true CN202134398U (en) | 2012-02-01 |
Family
ID=45523160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120106708U Expired - Fee Related CN202134398U (en) | 2011-04-13 | 2011-04-13 | External current transformer of geographic information system GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134398U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119237A (en) * | 2017-06-26 | 2019-01-01 | 河南平芝高压开关有限公司 | Heating removes tidal current transformer and metal enclosed switchgear |
| CN113871177A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | GIS and external current transformer |
-
2011
- 2011-04-13 CN CN201120106708U patent/CN202134398U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119237A (en) * | 2017-06-26 | 2019-01-01 | 河南平芝高压开关有限公司 | Heating removes tidal current transformer and metal enclosed switchgear |
| CN109119237B (en) * | 2017-06-26 | 2021-09-07 | 河南平芝高压开关有限公司 | Heating and dehumidifying type current transformer and metal-enclosed switchgear |
| CN113871177A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | GIS and external current transformer |
| CN113871177B (en) * | 2021-08-25 | 2024-04-09 | 河南平高电气股份有限公司 | GIS and external current transformer |
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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: 20120201 Termination date: 20120413 |