CN111430101A - Lightning protection dry-type transformer - Google Patents
Lightning protection dry-type transformer Download PDFInfo
- Publication number
- CN111430101A CN111430101A CN202010326508.6A CN202010326508A CN111430101A CN 111430101 A CN111430101 A CN 111430101A CN 202010326508 A CN202010326508 A CN 202010326508A CN 111430101 A CN111430101 A CN 111430101A
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- Prior art keywords
- lightning
- protection
- transformer
- arrester
- dry
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The invention belongs to the technical field of transformer equipment, and particularly relates to a lightning protection dry-type transformer which comprises a transformer protection base box, wherein a protection box door is movably arranged on the surface of the transformer protection base box through a rotating shaft, and an observation window is arranged on the surface of the protection box door. Through setting up transformer protection base case, can carry out the guide of thunder and lightning through the lightning rod on the one hand, on the top of lightning rod, form the space that local electric field concentrates, with the discharge's of influence thunder and lightning guide development direction, the guide thunder and lightning discharges to the lightning rod, rethread lightning conduction frame, conduction band and ground connection are led lightning current and are introduced the ground, thereby make dry-type transformer avoid the thunderbolt, on the other hand is through setting up the arrester, can prevent lightning and high voltage effectively through the arrester, protect equipment, when the thunder and lightning high voltage, the spark gap is punctured, the resistance value of arrester valve block resistance descends, introduce the lightning current into the ground, this has just protected dry-type transformer and has avoided the harm of lightning current.
Description
Technical Field
The invention belongs to the technical field of transformation equipment, and particularly relates to a lightning protection dry-type transformer.
Background
The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply speaking, the dry-type transformer is a transformer with an iron core and a winding which are not immersed in insulating oil, the cooling mode is divided into natural air cooling and forced air cooling, when in natural air cooling, the transformer can continuously run for a long time under the rated capacity, and when in forced air cooling, the output capacity of the transformer can be improved by 50 percent, so that the dry-type transformer is suitable for intermittent overload running or emergency accident overload running; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time.
However, most of the existing dry-type transformers are not provided with lightning protection measures, even if the transformer is provided with the lightning protection measures, the performance of the lightning protection device is generally poor, the lightning protection device is weak, and when lightning waves invade, the high-voltage coil and the low-voltage coil of the transformer are often damaged due to the fact that instantaneous current and voltage are too large, even power failure accidents are caused, or fire accidents are caused due to lightning.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a lightning protection dry type transformer, which solves the problems that the existing dry type transformer is weak in lightning protection device and is easy to cause accidents due to lightning.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a lightning protection dry-type transformer, includes transformer protection base case, there is the protection chamber door on the surface of transformer protection base case through axis of rotation movable mounting, the surface of protection chamber door is equipped with the observation window, the top of transformer protection base case is equipped with lightning-arrest electrically conductive frame, the top of lightning-arrest electrically conductive frame is equipped with the lightning rod, the inside of transformer protection base case is equipped with the support base, one side of supporting the base is equipped with coil protecting sheathing, coil protecting sheathing's top is equipped with the iron core, one side of iron core is equipped with the connection folder, one side of connection folder is equipped with erection bracing frame, the arrester is installed to one side of erection bracing frame, the one end of arrester is connected with the electric current lead wire, the below of arrester is equipped.
Preferably, one side of the transformer protection base box is provided with an exhaust fan hot window, and the inner side of the exhaust fan hot window is provided with a dustproof air deflector.
Preferably, the lightning rod structure is formed by sequentially decreasing elliptical structures.
Preferably, one side of the lightning-protection conducting frame is provided with a conducting band, and one end of the conducting band is connected with a grounding conducting post.
Preferably, fans are arranged on the other side of the supporting base, the number of the fans is six, and the fans are divided into two groups which are respectively arranged on two sides of the supporting base.
Preferably, the arrester is a valve type arrester.
Compared with the prior art, the invention has the beneficial effects that:
by arranging the transformer protection base box, on one hand, the lightning can be guided through the lightning rod, and a space with concentrated local electric field is formed at the top end of the lightning rod, the lightning is guided to discharge to the lightning rod in the development direction of influencing the lightning leading discharge, then the lightning current is led to the ground through the lightning conducting frame, the conducting belt and the grounding conducting post, thereby preventing the dry type transformer from being struck by lightning, on the other hand, by arranging the lightning arrester, the lightning and high voltage can be effectively prevented by the lightning arrester, the equipment is protected, when lightning high voltage exists, the spark gap is broken down, the resistance value of the valve plate resistor of the lightning arrester is reduced, the lightning current is led into the ground, and the dry type transformer is protected from being damaged by the lightning current, under normal condition, spark gap can not be punctured, and arrester valve block resistance's resistance value is higher, can not influence communication line's normal communication.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a third perspective view of the present invention;
FIG. 4 is a cross-sectional view of a three-dimensional structure of the present invention;
fig. 5 is a perspective view of a dry type transformer according to the present invention.
In the figure: 1, protecting a base box of a transformer; 2 exhaust fan hot window; 3 protecting the box door; 4, an observation window; 5, lightning protection conducting frame; 6, lightning rod; 7 a conductive band; 8, grounding the conductive column; 9 supporting the base; 10, a fan; 11 a coil shield housing; 12 iron cores; 13 connecting clamp; 14, mounting a support frame; 15 a lightning arrester; 16 current leads; 17 winding ends.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: a lightning protection dry type transformer comprises a transformer protection base box 1, a protection box door 3 is movably installed on the surface of the transformer protection base box 1 through a rotating shaft, an observation window 4 is arranged on the surface of the protection box door 3, the inside of the transformer protection base box 1 can be conveniently observed through the observation window 4, a lightning protection conductive frame 5 is arranged on the top of the transformer protection base box 1, a lightning rod 6 is arranged on the top of the lightning protection conductive frame 5, the transformer protection base box 1 is arranged, on one hand, lightning can be guided through the lightning rod 6, a space with concentrated local electric field is formed on the top end of the lightning rod 6 to influence the development direction of lightning leading discharge, the lightning is guided to discharge to the lightning rod 6, a support base 9 is arranged inside the transformer protection base box 1, a coil protection shell 11 is arranged on one side of the support base 9, and an iron core 12 is arranged on the top of the coil, one side of iron core 12 is equipped with connecting clamp 13, one side of connecting clamp 13 is equipped with erection bracing frame 14, arrester 15 is installed to one side of erection bracing frame 14, through setting up arrester 15, can prevent thunder and high voltage effectively through arrester 15, protect equipment, when thunder and lightning high voltage, the spark gap is punctured, the resistance value of arrester 15 valve block resistance descends, introduce the lightning current into the ground, this has just protected dry-type transformer and has avoided the harm of lightning current, under normal circumstances, the spark gap can not be punctured, the resistance value of arrester 15 valve block resistance is higher, can not influence the normal communication of communication line, the one end of arrester 15 is connected with current lead 16, the below of arrester 15 is equipped with winding end 17.
Specifically, one side of transformer protection base case 1 is equipped with exhaust fan hot window 2, and the inboard of exhaust fan hot window 2 is equipped with dustproof aviation baffle, and through setting up exhaust fan hot window 2, can discharge the heat of 1 inside productions of transformer protection base case, realizes exchanging with the outside air and realizes refrigerated result of use, and the dustproof aviation baffle that sets up simultaneously can effectually play the effect of dustproof protection, reduces the inside that the dust enters into transformer protection base case 1.
Specifically, 6 structural configuration appearances of lightning rod are and are in proper order degressive oval structure and constitute, through will setting up lightning rod 6 and design for time degressive oval structure, can effectually support lightning rod 6, compare in traditional lightning rod 6 and have more stable result of use.
Specifically, one side of the lightning-protection conductive frame 5 is provided with a conductive belt 7, one end of the conductive belt 7 is connected with a grounding conductive column 8, when discharging is carried out through the top end of the lightning rod 6, a space with a concentrated local electric field is formed to influence the development direction of lightning leading discharge, and then lightning current is introduced into the ground through the lightning-protection conductive frame 5, the conductive belt 7 and the grounding conductive column 8, so that the dry-type transformer is prevented from being struck by lightning.
Specifically, the other side of supporting base 9 is equipped with fan 10, and the quantity of fan 10 is six to divide equally into two sets of installing respectively in the both sides of supporting base 9, through setting up fan 10, can carry out the heat dissipation of airing exhaust to the inside air of transformer protection base case 1 and handle.
Specifically, the lightning arrester 15 is a valve type lightning arrester, the valve type lightning arrester is composed of a spark gap and a valve plate resistor, the valve plate resistor is made of special silicon carbide, and the valve plate resistor made of the silicon carbide can effectively prevent lightning and high voltage and protect equipment.
The working principle and the using process of the invention are as follows: after the invention is installed, the lightning can be guided by the lightning rod 6, a space with concentrated local electric field is formed at the top end of the lightning rod 6, the lightning is guided to discharge to the lightning rod 6 in the development direction of influencing the lightning leading discharge, then the lightning current is led to the ground through the lightning conducting frame 5, the conducting belt 7 and the grounding conducting post 8, thereby preventing the dry type transformer from being struck by lightning, and by providing the lightning arrester 15, lightning and high voltage can be effectively prevented by the lightning arrester 15, the equipment is protected, when lightning high voltage exists, the spark gap is broken down, the resistance value of the valve sheet resistor of the lightning arrester 15 is reduced, the lightning current is led into the ground, and therefore the dry type transformer is protected from being damaged by the lightning current, under normal conditions, the spark gap can not be broken down, and the resistance value of the valve plate resistor of the lightning arrester 15 is higher, so that the normal communication of a communication line can not be influenced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Lightning protection dry-type transformer, including transformer protection base case (1), its characterized in that: the surface of the transformer protection base box (1) is provided with a protection box door (3) through a rotating shaft, the surface of the protection box door (3) is provided with an observation window (4), the top of the transformer protection base box (1) is provided with a lightning-protection conductive frame (5), the top of the lightning-protection conductive frame (5) is provided with a lightning rod (6), the inside of the transformer protection base box (1) is provided with a supporting base (9), one side of the supporting base (9) is provided with a coil protection shell (11), the top of the coil protection shell (11) is provided with an iron core (12), one side of the iron core (12) is provided with a connecting clamp piece (13), one side of the connecting clamp piece (13) is provided with an installation supporting frame (14), one side of the installation supporting frame (14) is provided with a lightning arrester (15), one end of the lightning arrester (15) is connected, and a winding end (17) is arranged below the lightning arrester (15).
2. The lightning protection dry transformer of claim 1, wherein: an exhaust fan hot window (2) is arranged on one side of the transformer protection base box (1), and a dustproof air deflector is arranged on the inner side of the exhaust fan hot window (2).
3. The lightning protection dry transformer of claim 1, wherein: the lightning rod (6) is of an oval structure with the appearance gradually decreased.
4. The lightning protection dry transformer of claim 1, wherein: one side of the lightning-protection conducting frame (5) is provided with a conducting band (7), and one end of the conducting band (7) is connected with a grounding conducting post (8).
5. The lightning protection dry transformer of claim 1, wherein: the fan (10) is arranged on the other side of the supporting base (9), the number of the fans (10) is six, and the fans are divided into two groups which are respectively arranged on two sides of the supporting base (9).
6. The lightning protection dry transformer of claim 1, wherein: the lightning arrester (15) is a valve type lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326508.6A CN111430101A (en) | 2020-04-23 | 2020-04-23 | Lightning protection dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326508.6A CN111430101A (en) | 2020-04-23 | 2020-04-23 | Lightning protection dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111430101A true CN111430101A (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010326508.6A Pending CN111430101A (en) | 2020-04-23 | 2020-04-23 | Lightning protection dry-type transformer |
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| Country | Link |
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| CN (1) | CN111430101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755231A (en) * | 2020-08-06 | 2020-10-09 | 赣州诚博科技服务有限公司 | Transformer with lightning protection function |
| CN112366063A (en) * | 2020-10-17 | 2021-02-12 | 国网山东省电力公司淄博供电公司 | Lightning protection transformer and transformer lightning protection method |
-
2020
- 2020-04-23 CN CN202010326508.6A patent/CN111430101A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755231A (en) * | 2020-08-06 | 2020-10-09 | 赣州诚博科技服务有限公司 | Transformer with lightning protection function |
| CN112366063A (en) * | 2020-10-17 | 2021-02-12 | 国网山东省电力公司淄博供电公司 | Lightning protection transformer and transformer lightning protection method |
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