CN203118697U - Tank-type GIS (Geographic Information System) lightning arrester with novel ground structure - Google Patents
Tank-type GIS (Geographic Information System) lightning arrester with novel ground structure Download PDFInfo
- Publication number
- CN203118697U CN203118697U CN 201320068702 CN201320068702U CN203118697U CN 203118697 U CN203118697 U CN 203118697U CN 201320068702 CN201320068702 CN 201320068702 CN 201320068702 U CN201320068702 U CN 201320068702U CN 203118697 U CN203118697 U CN 203118697U
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- China
- Prior art keywords
- resistor disc
- lightning arrester
- core body
- tank
- disc core
- 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 discloses a tank-type GIS (Geographic Information System) lightning arrester with a novel ground structure. The lighting arrester comprises a tank body filled with SF6 (Sulfur Hexafluoride) and a resistor disc core body, wherein the resistor disc core body is grounded through an online monitor; and one end of the resistor disc core body is connected with the middle of an insulation spacer through a conducting rod, and the other end of the resistor disc core body is separated from the tank body through a zinc oxide resistor disc. After the circuit of the lighting arrester, which is grounded through the online monitor, breaks due to an accident, the circuit which is grounded through the zinc oxide resistor disc and the tank body conduct because an gap impedance is far greater than that of the zinc oxide resistor disc and the overcurrent is drained through the circuit, so that the safe and reliable operation of the lightning arrester is guaranteed.
Description
Technical field
The utility model belongs to the over-voltage protection technique field, is specifically related to a kind of pot type GIS lightning arrester with novel grounded structure.
Background technology
The GIS lightning arrester is the essential High-Voltage Electrical Appliances of fully closed combined electric unit, is the protection electrical equipment that avoids the overvoltage infringement for the protection of fully closed combined electric unit.In order to monitor the operation conditions of lightning arrester, pot type GIS lightning arrester all will pass through on-line monitoring instrument ground connection, its concrete structure is that lightning arrester resistor disc core body is received on the earth terminal that is installed on the lightning arrester housing by flexible conductor, outside housing, be connected on the on-line monitoring instrument with flexible conductor more then, ground connection then, simultaneously, in order to guarantee the electric current on-line monitoring instrument ground connection of flowing through, lightning arrester resistor disc core body separates by a cross-over block and earth potential.Because the GIS of some remote mountain areas station construction period transportation condition is quite abominable, may cause the flexible conductor Wiring nose to come off in the transportation, causes arrester ground to disconnect; Simultaneously because bad working environments more in service, cause the on-line monitoring instrument to damage after, also may cause arrester ground to disconnect.The consequence that ground connection disconnects is to discharge the serious blast that may cause lightning arrester inner constantly generation of lightning arrester.
Summary of the invention
The purpose of this utility model is that there is the problem of potential safety hazard in the pot type lightning arrester in the solution prior art after ground connection disconnects, and a kind of pot type GIS lightning arrester with novel grounded structure is provided.
For achieving the above object, the technical solution adopted in the utility model is as follows: a kind of pot type GIS lightning arrester with novel grounded structure, comprise the tank body and the resistor disc core body that are filled with SF6 gas, the resistor disc core body is by on-line monitoring instrument ground connection, it is characterized in that: described resistor disc core body one end is connected with the insulating basin middle part by conducting rod, and the other end separates by zinc oxide resistance sheet and tank body.
The beneficial effects of the utility model: because on-line monitoring instrument line resistance is much smaller than zinc oxide resistance sheet, under the normal condition, the lightning arrester overcurrent is via on-line monitoring instrument ground connection, and lightning arrester normally moves; When accident causes lightning arrester after the circuit of on-line monitoring instrument ground connection disconnects, because the gap impedance is much larger than zinc oxide resistance sheet, by the line conduction of zinc oxide resistance sheet and tank body connection ground connection, overcurrent bleeds off through this circuit, has guaranteed the security reliability of lightning arrester operation.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, a kind of pot type GIS lightning arrester with novel grounded structure, comprise the tank body 5 and the resistor disc core body 3 that are filled with SF6 gas, resistor disc core body 3 is by on-line monitoring instrument 6 ground connection, it is characterized in that: described resistor disc core body 3 one ends are connected with insulating basin 1 middle part by conducting rod 2, and the other end separates by zinc oxide resistance sheet 4 and jar 5 bodies.
Claims (1)
1. pot type GIS lightning arrester with novel grounded structure, comprise the tank body and the resistor disc core body that are filled with SF6 gas, the resistor disc core body is by on-line monitoring instrument ground connection, it is characterized in that: described resistor disc core body one end is connected with the insulating basin middle part by conducting rod, and the other end separates by zinc oxide resistance sheet and tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068702 CN203118697U (en) | 2013-02-06 | 2013-02-06 | Tank-type GIS (Geographic Information System) lightning arrester with novel ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068702 CN203118697U (en) | 2013-02-06 | 2013-02-06 | Tank-type GIS (Geographic Information System) lightning arrester with novel ground structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118697U true CN203118697U (en) | 2013-08-07 |
Family
ID=48899020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068702 Expired - Fee Related CN203118697U (en) | 2013-02-06 | 2013-02-06 | Tank-type GIS (Geographic Information System) lightning arrester with novel ground structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118697U (en) |
-
2013
- 2013-02-06 CN CN 201320068702 patent/CN203118697U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140206 |