CN205610205U - Transformer neutral point earthing protection device - Google Patents
Transformer neutral point earthing protection device Download PDFInfo
- Publication number
- CN205610205U CN205610205U CN201620288130.4U CN201620288130U CN205610205U CN 205610205 U CN205610205 U CN 205610205U CN 201620288130 U CN201620288130 U CN 201620288130U CN 205610205 U CN205610205 U CN 205610205U
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- CN
- China
- Prior art keywords
- neutral point
- pillar
- protection device
- current transformer
- transformer
- 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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Abstract
The utility model provides a transformer neutral point earthing protection device, includes the pillar, the pillar top is provided with the base, installs current transformer, supporting insulator, arrester, isolator on the base, supporting insulator is last to be provided with wiring aluminium row, and isolator is introduced by supporting insulator through the arrester to the earth connection that wiring aluminium was arranged. The side fixed mounting of pillar has electronic mechanism, and electronic mechanism passes through sleeve pipe and isolator's pin connection, and there is discharge gap in going up of current transformer between lead wire and the supporting insulator. The utility model relates to a transformer neutral point earthing protection device, electrical equipment such as collection isolator, arrester, discharge gap and current transformer form as an organic wholely, have characteristics such as occupation space is little, installation and debugging safety, security performance height.
Description
Technical field
This utility model relates to a kind of electric protective device, particularly a kind of transformer neutral point earth protection device.
Background technology
China's electrical network many selections graded insulated transformer at present, transformer station at multiple stage parallel operation of transformers, neutral point of main transformer typically uses the method for operation of partial earthing, but take partial earthing mode to run in 110KV and 220KV power transformer neutral point, it is easily caused the system failure, and is inconvenient to change, therefore, the safe operation of transformator to be ensured, it is necessary to use the grounding device of a kind of safety and reliability.
Summary of the invention
This utility model provides a kind of transformer neutral point earth protection device, collects the electrical equipments such as disconnecting switch, spark gap, discharging gap summation current transformer and consists of one, has take up room little, installation and debugging safety, security performance high.
This utility model be the technical scheme is that
A kind of transformer neutral point earth protection device, including pillar, post top portion is provided with base, and base is provided with current transformer, supports insulative, spark gap, disconnecting switch；Being provided with wiring aluminum row on supports insulative, the earth lead of wiring aluminum row is introduced disconnecting switch by supports insulative through spark gap.The side of pillar is installed with motor drive mechanism, and motor drive mechanism is connected with the lead-in wire of disconnecting switch by sleeve pipe, there is discharging gap between upper lead-in wire and supports insulative of current transformer.
Described current transformer side is installed on transformator outlet casing tube,
The secondary side of described current transformer is configured with two secondary of 0.5/10P.
Described base is connected by pre-buried earth stud with the embedded board of post top portion.
Described motor drive mechanism is by being arranged on the prefabricated hook fixed installation of the side of pillar.
This utility model one transformer neutral point earth protection device, technique effect is as follows:
1), current transformer be installed on transformator outlet casing tube, transformator outlet casing tube is the primary insulation device outside transformer tank, and the lead-out wire of Transformer Winding has to pass through outlet casing tube.Current transformer side is installed on transformator outlet casing tube by this utility model, fixedly secures current transformer together with base, possesses the little advantage that takes up room.
2), the secondary side of current transformer be configured with two secondary of 0.5/10P, for measuring protection, the used time is not short-circuit by it.Installation and debugging safety.
3), base be connected by pre-buried earth stud with the embedded board of post top portion, base, the firmly installing of pillar, make pillar have grounding function concurrently, it is not necessary to additionally earth lead simultaneously.
4), the electrical equipment such as this utility model device collection disconnecting switch, spark gap, summation current transformer consist of one, have take up room little, installation and debugging safety, security performance high.
Accompanying drawing explanation
Fig. 1 is this utility model apparatus structure schematic diagram.
Detailed description of the invention
As it is shown in figure 1, a kind of transformer neutral point earth protection device, including pillar 8, pillar 8 top is provided with base 7, and base 7 is provided with current transformer 4, supports insulative 5, spark gap 6, disconnecting switch 3；Being provided with wiring aluminum row 2 on supports insulative 5, the earth lead of wiring aluminum row 2 is introduced disconnecting switch 3 by supports insulative 5 through spark gap 6.
Described base 7 is connected by pre-buried earth stud with the embedded board at pillar 8 top.Pillar 8 is two, uses cement pole to make, and its height can be determined by requirement of engineering.Wherein the side of a pillar is installed with motor drive mechanism 10, and motor drive mechanism 10 is connected with the lead-in wire of disconnecting switch 3 by sleeve pipe 9, and motor drive mechanism 10 controls disconnecting switch 3 by sleeve pipe 9 and works.
Discharging gap 1 is there is between supports insulative 5 of the upper lead-in wire of current transformer 4 and side.Described motor drive mechanism 10 is by being arranged on the prefabricated hook fixed installation of the side of pillar 8.
Described current transformer 4 side is installed on transformator outlet casing tube, and opposite side is arranged on base 7.The secondary side of current transformer 4 is configured with two secondary of 0.5/10P, and for measuring protection, the used time is not by its short circuit.
Claims (5)
1. a transformer neutral point earth protection device; including pillar (8); pillar (8) top is provided with base (7), it is characterised in that be provided with current transformer (4), supports insulative son (5), spark gap (6), disconnecting switch (3) on base (7)；Being provided with wiring aluminum row (2) in supports insulative (5), the earth lead of wiring aluminum row (2) is introduced disconnecting switch (3) by supports insulative (5) through spark gap (6)；The side of pillar (8) is installed with motor drive mechanism (10), and motor drive mechanism (10) is connected with the lead-in wire of disconnecting switch (3) by sleeve pipe (9), there is discharging gap (1) between the upper lead-in wire of current transformer (4) and supports insulative (5).
A kind of transformer neutral point earth protection device, it is characterised in that described current transformer (4) side is installed on transformator outlet casing tube.
A kind of transformer neutral point earth protection device the most according to claim 1 or claim 2, it is characterised in that the secondary side of described current transformer (4) is configured with two secondary of 0.5/10P.
A kind of transformer neutral point earth protection device, it is characterised in that described base (7) is connected by pre-buried earth stud with the embedded board at pillar (8) top.
A kind of transformer neutral point earth protection device, it is characterised in that described motor drive mechanism (10) is by being arranged on the prefabricated hook fixed installation of the side of pillar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288130.4U CN205610205U (en) | 2016-04-08 | 2016-04-08 | Transformer neutral point earthing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288130.4U CN205610205U (en) | 2016-04-08 | 2016-04-08 | Transformer neutral point earthing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610205U true CN205610205U (en) | 2016-09-28 |
Family
ID=56971611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620288130.4U Expired - Fee Related CN205610205U (en) | 2016-04-08 | 2016-04-08 | Transformer neutral point earthing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205610205U (en) |
-
2016
- 2016-04-08 CN CN201620288130.4U patent/CN205610205U/en not_active Expired - Fee Related
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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: 20160928 Termination date: 20200408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |