CN209461369U - A kind of vacuum circuit breaker convenient for adjusting current transformer ratio - Google Patents
A kind of vacuum circuit breaker convenient for adjusting current transformer ratio Download PDFInfo
- Publication number
- CN209461369U CN209461369U CN201920359750.6U CN201920359750U CN209461369U CN 209461369 U CN209461369 U CN 209461369U CN 201920359750 U CN201920359750 U CN 201920359750U CN 209461369 U CN209461369 U CN 209461369U
- Authority
- CN
- China
- Prior art keywords
- vacuum circuit
- circuit breaker
- current transformer
- round bar
- coiling group
- 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
- 230000001681 protective effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
The utility model discloses a kind of vacuum circuit breakers convenient for adjusting current transformer ratio, including vacuum circuit breaker body, multiple insulating sleeves and two current transformers are provided at the top of the vacuum circuit breaker body, two current transformers are separately positioned on the left and right sides of the insulating sleeve, the current transformer is disposed with fixed coiling group and adjustable the number of turns coiling group from top to bottom, locating slot is offered in adjustable the number of turns coiling group, the vacuum circuit breaker body is mounted in mounting base, support plate is provided at left and right sides of the mounting base, round tube hole is offered in the support plate, round bar is provided in the round tube hole, locating piece corresponding with the locating slot is fixedly welded on one end of the round bar, handwheel is fixedly welded on another end of the round bar, the top of the support plate is set It is equipped with top plate.The utility model has certain protective capacities convenient for the no-load voltage ratio of adjusting current transformer.
Description
Technical field
The utility model relates to electrical equipment technical field, specially a kind of vacuum convenient for adjusting current transformer ratio
Breaker.
Background technique
The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to being all high vacuum；It has
There is the advantages of small in size, light-weight, not have to maintenance suitable for frequent operation, arc extinguishing, using more universal in power distribution network.Vacuum
Breaker is 3~10kV, the indoor distribution in 50Hz three-phase alternating current system, in industrial and mining enterprises, power plant, substation
Protection and control as electrical equipment are used, especially suitable for requiring the field of employment of non-oil ultra high vacuum system, few maintenance and frequent operation,
Breaker is configurable on middle-placed switch cabinet, double-layer cabinet, fixes in cabinet and use as control and protection high voltage electric equipment.
For being equipped with A, the high-pressure vacuum breaker of C biphase current mutual inductor device, why current transformer has no-load voltage ratio,
It is to set to meet the burden requirement of different fields of employment and specially, can be selected according to different intensity of loads corresponding
Electric current no-load voltage ratio.Existing vacuum circuit breaker needs to operate current transformer itself when adjusting current transformer, and is
Certain protective device can't be arranged by not being blocked, and be inconvenient, influenced the service life of vacuum circuit breaker.
Utility model content
The purpose of this utility model is to provide a kind of vacuum circuit breakers convenient for adjusting current transformer ratio, convenient for adjusting
The no-load voltage ratio of economize on electricity current transformer, has certain protective capacities, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: one kind is convenient for adjusting current transformer ratio
Vacuum circuit breaker, including vacuum circuit breaker body, be provided at the top of the vacuum circuit breaker body multiple insulating sleeves and
Two current transformers, two current transformers are separately positioned on the left and right sides of the insulating sleeve, and the electric current is mutual
Sensor is disposed with fixed coiling group and adjustable the number of turns coiling group from top to bottom, and it is fixed to offer in adjustable the number of turns coiling group
Position slot；
The vacuum circuit breaker body is mounted in mounting base, is provided with support plate at left and right sides of the mounting base,
Round tube hole is offered in the support plate, and round bar is provided in the round tube hole, is fixedly welded on an end of the round bar
Locating piece corresponding with the locating slot, the locating piece is identical with the cross section of the locating slot, and is at least to have
The regular polygon on four sides is fixedly welded with handwheel on another end of the round bar, and the top of the support plate is provided with top
Plate.
Preferably, graduation mark is provided on the round bar.
Preferably, multiple bird-scaring units are fixedly installed on the upper surface of the top plate.
Preferably, multiple threading holes are offered on the top plate.
Preferably, the round bar and the round tube hole are clearance fit structure, and the cross-sectional area of the locating piece is greater than institute
State the cross-sectional area of round tube hole.
Compared with prior art, the utility model has the beneficial effects that
1, round bar and locating piece is driven to rotate by rotation handwheel, so that can under the cooperation of locating piece and locating slot
It adjusts the number of turns coiling group to be rotated, and then adjusts the turn ratio of fixed coiling group and adjustable the number of turns coiling group, convenient for adjusting electric current
The no-load voltage ratio of mutual inductor；
2, the tower structure being made up of two support plates and top plate, can form certain guarantor to vacuum circuit breaker body
Shield, so that the vacuum circuit breaker has certain protective capacities.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the support plate of the utility model and the schematic cross-sectional view of top plate；
Fig. 3 is the connection schematic diagram of the round bar of the utility model, handwheel and locating piece；
Fig. 4 is the structural schematic diagram of adjustable the number of turns coiling group of the utility model.
In figure: 1, vacuum circuit breaker body；2, insulating sleeve；3, current transformer；4, fixed coiling group；5, adjustable the number of turns
Coiling group；6, locating slot；7, mounting base；8, support plate；9, round tube hole；10, round bar；11, locating piece；12, top plate；13, scale
Line；14, bird-scaring unit；15, threading hole；16, handwheel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of convenient for the true of adjusting current transformer ratio
Empty breaker, including vacuum circuit breaker body 1, the top of the vacuum circuit breaker body 1 are provided with multiple 2 Hes of insulating sleeve
Two current transformers 3, two current transformers 3 are separately positioned on the left and right sides of the insulating sleeve 2, the electric current
Mutual inductor 3 is disposed with fixed coiling group 4 and adjustable the number of turns coiling group 5 from top to bottom, opens in adjustable the number of turns coiling group 5
Equipped with locating slot 6, the vacuum circuit breaker body 1 is mounted in mounting base 7, and the left and right sides of the mounting base 7 is provided with
Support plate 8 offers round tube hole 9 in the support plate 8, round bar 10, one end of the round bar 10 is provided in the round tube hole 9
Locating piece 11 corresponding with the locating slot 6, the cross section of the locating piece 11 and the locating slot 6 are fixedly welded on head
It is identical, and be the regular polygon at least having there are four side, so that locating piece 11 can be preferably plugged in locating slot 6, and have
For good torque, it is fixedly welded with handwheel 16 on another end of the round bar 10, the top of the support plate 8 is provided with top
Plate 12.
Round bar 10 and the rotation of locating piece 11 are driven by rotation handwheel 16, so that in locating piece 11 and locating slot 6
Adjustable the number of turns coiling group 5 is rotated under cooperation, and then adjusts the turn ratio of fixed coiling group 4 and adjustable the number of turns coiling group 5, just
In the no-load voltage ratio for adjusting current transformer 3, the tower structure being made up of two support plates 8 and top plate 12 can be to vacuum circuit breaker
Device ontology 1 forms certain protection, so that the vacuum circuit breaker has certain protective capacities.
Specifically, graduation mark 13 is provided on the round bar 10, so that the length stretched after can rotating according to round bar 10, root
The total of the rotation of round bar 10 is calculated according to certain ratio, obtains the number of turns of adjustable the number of turns coiling group 5, conveniently adjusted electricity
The no-load voltage ratio of current transformer 3.
Specifically, being fixedly installed with multiple bird-scaring units 14 on the upper surface of the top plate 12, flying bird can be driven, is avoided
Accident.
Specifically, offering multiple threading holes 15 on the top plate 12, facilitate the interspersed of power line, and can play good
Fixed function.
Specifically, the round bar 10 and the round tube hole 9 are clearance fit structure, the cross-sectional area of the locating piece 11 is big
In the cross-sectional area of the round tube hole 9, so that round bar 10 can rotate in round tube hole 9, and since locating piece 11 will not be logical from circle
Expose in hole 9 so that round bar 10 will not expose from round tube hole 9.
Structural principle: in use, the vacuum circuit breaker is mounted on by mounting base 7 needs position to be mounted, work as needs
When the no-load voltage ratio of current transformer 3 is adjusted, drives round bar 10 and locating piece 11 to rotate by rotation handwheel 16, make
Under the cooperation of locating piece 11 and locating slot 6 adjustable the number of turns coiling group 5 be rotated, and then adjust fixed coiling group 4 with can
The turn ratio for adjusting the number of turns coiling group 5, is adjusted the no-load voltage ratio of current transformer 3, is made up of two support plates 8 and top plate 12
Tower structure, certain protection can be formed to vacuum circuit breaker body 1, so that the vacuum circuit breaker has certain protection
Ability.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of vacuum circuit breaker convenient for adjusting current transformer ratio, including vacuum circuit breaker body (1), feature exists
In: multiple insulating sleeves (2) and two current transformers (3), two institutes are provided at the top of the vacuum circuit breaker body (1)
The left and right sides that current transformer (3) is separately positioned on the insulating sleeve (2) is stated, the current transformer (3) is from top to bottom
It is disposed with fixed coiling group (4) and adjustable the number of turns coiling group (5), offers positioning on adjustable the number of turns coiling group (5)
Slot (6)；
The vacuum circuit breaker body (1) is mounted on mounting base (7), is provided with branch at left and right sides of the mounting base (7)
Fagging (8) offers round tube hole (9) on the support plate (8), is provided with round bar (10), the round bar in the round tube hole (9)
(10) locating piece (11) corresponding with the locating slot (6), the locating piece (11) and institute are fixedly welded on a end
The cross section for stating locating slot (6) is identical, and is the regular polygon at least having there are four side, another end of the round bar (10)
On be fixedly welded with handwheel (16), the top of the support plate (8) is provided with top plate (12).
2. a kind of vacuum circuit breaker convenient for adjusting current transformer ratio according to claim 1, it is characterised in that: institute
It states and is provided with graduation mark (13) on round bar (10).
3. a kind of vacuum circuit breaker convenient for adjusting current transformer ratio according to claim 1, it is characterised in that: institute
It states and is fixedly installed with multiple bird-scaring units (14) on the upper surface of top plate (12).
4. a kind of vacuum circuit breaker convenient for adjusting current transformer ratio according to claim 1, it is characterised in that: institute
It states and offers multiple threading holes (15) on top plate (12).
5. a kind of vacuum circuit breaker convenient for adjusting current transformer ratio according to claim 1, it is characterised in that: institute
Stating round bar (10) and the round tube hole (9) is clearance fit structure, and the cross-sectional area of the locating piece (11) is logical greater than the circle
The cross-sectional area in hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359750.6U CN209461369U (en) | 2019-03-22 | 2019-03-22 | A kind of vacuum circuit breaker convenient for adjusting current transformer ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359750.6U CN209461369U (en) | 2019-03-22 | 2019-03-22 | A kind of vacuum circuit breaker convenient for adjusting current transformer ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209461369U true CN209461369U (en) | 2019-10-01 |
Family
ID=68047399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359750.6U Expired - Fee Related CN209461369U (en) | 2019-03-22 | 2019-03-22 | A kind of vacuum circuit breaker convenient for adjusting current transformer ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209461369U (en) |
-
2019
- 2019-03-22 CN CN201920359750.6U patent/CN209461369U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |