CN208506091U - Component is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals - Google Patents
Component is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals Download PDFInfo
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- CN208506091U CN208506091U CN201821306054.0U CN201821306054U CN208506091U CN 208506091 U CN208506091 U CN 208506091U CN 201821306054 U CN201821306054 U CN 201821306054U CN 208506091 U CN208506091 U CN 208506091U
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Abstract
The utility model relates to power engineering tool engineering device technique fields, the spring of more particularly, to 500kV and the above transformer bushing CT secondary terminals is shorted component, including coupling part, the coupling part is the ring for being socketed on CT terminal bolt, the ring leaving certain gaps uncovered by the economic plan, notch both sides are bent to form hook to outside ring；Two coupling parts are connected together by fixed part, and the fixed part is the component with certain elastic force, are separately connected any one hook of two coupling parts；At the tie point of fixed part and hook, portion of the handle is set.The spring of the utility model is shorted component, and using integrated design, the ring for directly connecting part is socketed on the bolt of CT secondary terminals, realizes fast-wiring and takes out stitches, speed is fast, high-efficient；It is Ke Xunhuanliyong, it solves the problems, such as the waste of traditional wired, guarantees construction safety.
Description
Technical field
The utility model relates to power engineering tool engineering device technique fields, more particularly to one kind to be used for 500kV or more
The spring that the change of current becomes CT secondary terminals is shorted component.
Background technique
According to the related requirement in GB 50150-2016 " Erection works of electrical installations Standard for handover test of electric equipment ",
Transformer after the installation is completed, need to carry out following commissioning test (text involved in test be part test content, detailed test
Content is shown in the 8th chapter of GB 50150-2016 " Erection works of electrical installations Standard for handover test of electric equipment "):
1, the D.C. resistance of the winding and sleeve under all taps is measured；
2, voltage ratio under all taps is checked；
3, deformation test of transformer winding；
4, the low-voltage zero load of transformer and short-circuit test；
5, winding and sleeve it is long when induced over voltage withstand test band measurement of partial discharge；
When field test, exchange rheology carry out alternating current-direct current pressure resistance and it is long when induced over voltage withstand test band measurement of partial discharge this
It when a little high-pottings, needs for the CT secondary terminals on casing to be shorted, to prevent CT second open circuit during test.
The cannula C T secondary terminal box form that the 500kV and 800kV change of current at present becomes is different, the wiring point form of secondary terminals
It is different, at the scene when commissioning test, the Special short line that do not fix, but interim single bare copper wire is used to be shorted.
Single bare copper wire is a soft copper silk, although being able to satisfy the demand for being shorted CT secondary terminals, in actual job, is shorted mode
All it is that copper wire is wrapped on the screw of secondary terminals, wiring and takes out stitches all inconvenient, wiring speed is slow, low efficiency；Part end
The aperture of sub- box is deeper, and diameter is small, and unarmed wiring is difficult to complete, and completes also waste many times reluctantly.In addition, being shorted
In the process, because the position of cannula C T secondary terminal box is higher, operating personnel need to seek connections on casing for a long time, and it is tired to be easy muscle
Labor, there are falling risks.Single copper wire easily snaps off simultaneously, and in demolishing process after the end of the test, all directly copper
Silk is cut, and cannot be recycled and be caused to waste, it is also possible to thin copper wire is retained in secondary terminal box, there are security risks.
Utility model content
The utility model is shorted secondary terminals using bare copper wire winding for above-mentioned, proposes one kind
It is shorted component for the spring of 500kV and the above transformer bushing CT secondary terminals, is tubular, using nut for shell
The CT secondary terminals of crimping are shorted, the depth in the cylindrical case of the CT secondary terminals, and the spring is shorted the recyclable benefit of component
With realization fast and safely wiring reduces the security risk during test.
The utility model solves above-mentioned technical problem and adopts the following technical scheme that for 500kV and the above bushing shell for transformer
The spring of CT secondary terminals is shorted component, and it includes coupling part (1), the interconnecting piece that the spring, which is shorted component (100),
It is divided into the ring (11) for being socketed on CT terminal bolt, ring (11) leaving certain gaps uncovered by the economic plan (12), notch (12) both sides are to outside ring
It is bent to form hook (13)；Two coupling parts (1) are connected together by fixed part (2), the fixed part (2)
For the component with certain elastic force, it is separately connected any one hook of two coupling parts (1)；Fixed part (2) with
At the tie point of hook (13), it is arranged portion of the handle (3).
Preferably, the hook (13) is made of aluminium, copper or alloy material.
The fixed part (2) is spring, and spring diameter isLength is 3~5cm before stretching, and maximum is drawn
Elongation is 8~10cm.By spring elongation, two coupling parts (1) are tensed, it is ensured that be reliably connected, electric conductivity is good.
The portion of the handle (3) is two, and described two portion of the handle (3) are in same plane, in this way, can be effective
It reduces portion of the handle to be taken up space, other components not had an impact.
Plane locating for described two portion of the handle (3) is vertical with ring (11) plane of the coupling part (1), and being convenient for will
Ring (11) is socketed on the bolt of CT secondary terminals.
Component (100) are shorted in order to facilitate the operation of the spring, the portion of the handle (3) is rod-shaped, and by its tail portion
Handle is set as slightly tabular morphology.
Working principle: the utility model is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals
Component is shorted, the depth in the cylindrical case of the CT secondary terminals for the CT secondary terminals that shell is tubular, and tie point is few, two
Point distance is slightly remote, is crimped when short circuit using nut.Detailed process are as follows: by the way of 2 terminal nuts of socket every time, setting
Two coupling parts are reliably connected by component by fixed part, and the ring of each coupling part can directly be socketed in CT secondary terminals
Bolt on, then by hook be hooked in bolted conducting wire exposed part, short circuit point can be formed.
Generated beneficial effect is utility model device compared with prior art:
(1) spring of the utility model is shorted component, and using integrated design, the ring set for directly connecting part is connect
On the bolt of CT secondary terminals, realizes fast-wiring and take out stitches, speed is fast, high-efficient；It is Ke Xunhuanliyong, solve traditional wired
Waste problem, guarantee construction safety.
(2) the utility model is suitable for the CT secondary terminals connection that tie point is few, two o'clock distance is slightly remote, shell is tubular,
The ring of coupling part is socketed on the bolt of CT secondary terminals, and the hook that the ring is formed then is hooked in naked with bolted conducting wire
Reveal part, formed and be shorted point, it is ensured that connection fastens, effectively.
(3) the utility model is shorted in such a way that ring set connects, simple to operate, is avoided using other short circuits
Structure is that may be present because of volume excessive the problem of can not closing rear cover.
Detailed description of the invention
Fig. 1 is the overall schematic that the utility model spring is shorted component.
Fig. 2 is that the utility model spring is shorted component ground connection schematic diagram.
Fig. 3 is the continuous short circuit schematic diagram that the utility model spring is shorted component.
The wherein label in attached drawing: the coupling part 1-；11- ring；12- notch；13- hook；2- fixed part；The hand-held part 3-
Point；100- spring is shorted component；200- lead-out wire.
Specific embodiment
The utility model is described in further detail below by drawings and examples, but the protection model of the utility model
It encloses and is not limited to the content.
As shown in Figure 1, a kind of be shorted component for the spring of 500kV and the above transformer bushing CT secondary terminals, use
Be shorted in the CT secondary terminals that shell is tubular, the depth in the cylindrical case of the CT secondary terminals, tie point is few, two o'clock distance slightly
Far, it is crimped when short circuit using nut.So-called tie point is few, refers to that the point that needs are shorted is 5-6, it is more sparse to be shorted point.
It includes coupling part 1 that the spring, which is shorted component 100, and the coupling part is the ring for being socketed on CT terminal bolt
11, the internal diameter of ring 11Outer diameterElectric conductivity is good, is unlikely to deform.Ring 11 can pack into diameterBolt.11 leaving certain gaps uncovered by the economic plan 12 of ring, 12 both sides of notch are bent to form hook 13 to outside ring.Hook 13 uses
On-deformable material is made, and is such as made of aluminium, copper or alloy material.
Two coupling parts 1 are connected together by fixed part 2, and the fixed part 2 is with certain elastic force
Component, be separately connected any one hook of two coupling parts 1.In the present embodiment, the fixed part 2 is spring,
Spring diameter isLength is 3~5cm before stretching, and maximum tension length is 8~10cm.By spring elongation, two are tensed
A coupling part 1, it is ensured that be reliably connected, electric conductivity is good.In actual use, it is desirable that the elastic force of the spring used is small, it is only necessary to
There is certain pulling force all right, it is all right to meet installation.
At the tie point of fixed part 2 and hook 13, portion of the handle 3 is set.Portion of the handle 3 is for operator to whole
A spring is shorted the operation of component 100, facilitates 11 sets of ring by coupling part 1 on the bolt of CT secondary terminals, or will
Hook 13 is hooked in the exposed part with bolted conducting wire, length about 5-8cm.The portion of the handle 3 can only setting one, but
It is that generally the portion of the handle 3 is two, two portion of the handle 3 are in same plane, in this way, which hand-held part can be effectively reduced
Divide and taken up space, other components is not had an impact.In order to facilitate gripping, the portion of the handle 3 is rod-shaped, and by its tail portion hand
Handle is set as slightly tabular morphology.
Plane locating for described two portion of the handle 3 is vertical with 11 plane of ring of the coupling part 1.Because of some CT bis-
Secondary terminal inconvenience is directly connected with hand, and the purpose being arranged in this way is the socket of CT secondary terminals for convenience, is convenient for 11 ring of ring
It covers on the bolt of CT secondary terminals.
In addition, being not specifically limited to the material of the portion of the handle 3, as long as facilitating hand-held.
Specifically used method: when being shorted the connection of component 100 using the spring of the utility model, the ring set of coupling part is connect
On the bolt of CT secondary terminals, the hook that the ring is formed then is hooked in be shorted with bolted conducting wire exposed part, formation
Point, it is ensured that connection fastens, effectively.Meanwhile as shown in Fig. 2, being arranged one at the wherein tie point of a fixed part and hook
Root lead-out wire 200 is grounded.Lead-out wire is the bare copper wire of long 30cm, diameter phi 1mm.As needed, earth-free in lead-out wire 200
When, it can be wrapped on portion of the handle, when needing to be grounded, then draw ground connection.
It is illustrated in figure 3 the continuous short circuit schematic diagram that the utility model spring is shorted component 100.If CT secondary terminals
It is spaced slightly far, can be connected in such a way that each point is continuously shorted between each tie point, be then shorted mode using continuous, according to
It is secondary to connect each tie point, and finally connect lead-out wire 200, ground connection.
On the other hand, too small if there is the spacing between some consecutive points, it is successively continuously short to cannot achieve each point
Connect, then can discontinuous, compartment of terrain each tie point is connected, and finally connect lead-out wire 200, ground connection.
Above embodiments are only to illustrate the technical solution of the utility model, rather than are limited；Although referring to before
Embodiment is stated the utility model is described in detail, it for those of ordinary skill in the art, still can be right
Technical solution documented by previous embodiment is modified or equivalent replacement of some of the technical features；And these
Modifications or substitutions, the utility model technical solution claimed that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. being shorted component for the spring of 500kV and the above transformer bushing CT secondary terminals, which is characterized in that the spring
It includes coupling part (1) that formula, which is shorted component (100), and the coupling part is the ring (11) for being socketed on CT terminal bolt,
Ring (11) leaving certain gaps uncovered by the economic plan (12), notch (12) both sides are bent to form hook (13) to outside ring；Two coupling parts (1)
It is connected together by fixed part (2), the fixed part (2) is the component with certain elastic force, is separately connected two institutes
State any one hook of coupling part (1)；At the tie point of fixed part (2) and hook (13), it is arranged portion of the handle (3).
2. spring as described in claim 1 is shorted component, which is characterized in that the hook (13) uses aluminium, copper or alloy
Material is made.
3. spring as described in claim 1 is shorted component, which is characterized in that the fixed part (2) is spring, spring diameter
ForLength is 3~5cm before stretching, and maximum tension length is 8~10cm.
4. spring as described in claim 1 is shorted component, which is characterized in that the portion of the handle (3) is two, described two
Portion of the handle (3) is in same plane.
5. spring as claimed in claim 4 is shorted component, which is characterized in that plane locating for described two portion of the handle (3)
It is vertical with ring (11) plane of the coupling part (1).
6. spring as described in claim 1 is shorted component, which is characterized in that the portion of the handle (3) is rod-shaped, tail portion hand
Handle is slightly flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306054.0U CN208506091U (en) | 2018-08-14 | 2018-08-14 | Component is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306054.0U CN208506091U (en) | 2018-08-14 | 2018-08-14 | Component is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208506091U true CN208506091U (en) | 2019-02-15 |
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ID=65300507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821306054.0U Active CN208506091U (en) | 2018-08-14 | 2018-08-14 | Component is shorted for the spring of 500kV and the above transformer bushing CT secondary terminals |
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|---|---|
| CN (1) | CN208506091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640124A (en) * | 2021-08-24 | 2021-11-12 | 云南电网有限责任公司电力科学研究院 | Static test device for sleeve end part electric connection structure |
| CN113702788A (en) * | 2021-09-17 | 2021-11-26 | 广东电网有限责任公司 | Capping type transformer ultrahigh frequency partial discharge signal acquisition device |
-
2018
- 2018-08-14 CN CN201821306054.0U patent/CN208506091U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640124A (en) * | 2021-08-24 | 2021-11-12 | 云南电网有限责任公司电力科学研究院 | Static test device for sleeve end part electric connection structure |
| CN113640124B (en) * | 2021-08-24 | 2024-03-19 | 云南电网有限责任公司电力科学研究院 | Static test device for sleeve end electric connection structure |
| CN113702788A (en) * | 2021-09-17 | 2021-11-26 | 广东电网有限责任公司 | Capping type transformer ultrahigh frequency partial discharge signal acquisition device |
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