CN204288981U - A kind of neutral point grounding resistor - Google Patents
A kind of neutral point grounding resistor Download PDFInfo
- Publication number
- CN204288981U CN204288981U CN201420871086.0U CN201420871086U CN204288981U CN 204288981 U CN204288981 U CN 204288981U CN 201420871086 U CN201420871086 U CN 201420871086U CN 204288981 U CN204288981 U CN 204288981U
- Authority
- CN
- China
- Prior art keywords
- pad
- insulation
- neutral point
- resistive element
- pedestal
- 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
Landscapes
- Details Of Resistors (AREA)
Abstract
The utility model proposes a kind of neutral point grounding resistor, comprising: pedestal, resistive element, skeleton screw mandrel and insulation are to pad, and described skeleton screw mandrel runs through described pedestal, described resistive element and described insulation to pad; Described insulation is to padding between described pedestal and described resistive element; Described pedestal is connected by fastening nuts with the end of described resistive element; The insulation that described insulation is made for bakelite pad is to pad.The beneficial effects of the utility model are as follows: by the insulated part of neutral point grounding resistor being arranged to insulation property and the higher bakelite insulated with material of structural strength to pad, effectively prevent resistor to be burnt under the high temperature conditions, and structure is simple, easy to process.
Description
Technical field
The utility model relates to power transmission and transformation system secondary device technical field, refers to a kind of neutral point grounding resistor especially.
Background technology
Neutral point grounding resistor is a kind of for connection transformer or a kind of protection type electrical equipment between generator and the earth, is applicable to 50 (60) Hz high pressure power transmission and distribution ac grid systems.Neutral point grounding resistor does not have electric current to flow through when power transmission and distribution system worked well, and when electric power system generation single phase ground fault, the electric current flowing through neutral point grounding resistor is very large, and the time is very short, is generally used for short time duty.
Neutral point grounding resistor is made up of parts such as resistive element, insulated part, support frame, pedestal, binding posts.Insulated part between the pedestal of traditional neutral point grounding resistor and resistive element adopts insulator to realize, and in the neutral point grounding resistor of this structural shape, the performance of insulator will affect the quality of resistor itself to a great extent.
Melt because heat easily occurs insulator under the high temperature conditions, and cause neutral point grounding resistor to be burnt destruction, therefore the neutral point grounding resistor potential safety hazard of traditional structure is larger.
Utility model content
The utility model proposes a kind of neutral point grounding resistor, solve neutral point grounding resistor in prior art by the large problem of the potential safety hazard of burning.
The technical solution of the utility model is achieved in that
A kind of neutral point grounding resistor, comprising: pedestal, resistive element, skeleton screw mandrel and insulation are to pad, and described skeleton screw mandrel runs through described pedestal, described resistive element and described insulation to pad; Described insulation is to padding between described pedestal and described resistive element; Described pedestal is connected by fastening nuts with the end of described resistive element; The insulation that described insulation is made for bakelite pad is to pad.
As preferably, described insulation comprises to pad the convex pad and recessed pad that cooperatively interact, and the centre of described convex pad and recessed pad is equipped with for through through hole in described skeleton screw mandrel.
As preferably, the outer cover of described skeleton screw mandrel has micanite pipe.
As preferably, described nut is hexagon nut with flange, and the flange face of described hexagon nut with flange is with locking teeth.
Neutral point grounding resistor described in the utility model when assembling, directly by skeleton screw mandrel through insulation in pad in through hole, insulating cooperatively interacts to the convex pad of pad and recessed pad, and pedestal can be clamped by centre.
The beneficial effects of the utility model are:
By the insulated part of neutral point grounding resistor being arranged to insulation property and the higher bakelite insulated with material of structural strength to pad, effectively prevent resistor and burnt under the high temperature conditions, and structure being simple, easy to process.
The insulation of bakelite material to the pad good insulating performance of self and the micanite pipe of skeleton screw mandrel outer cover with the use of, more effectively ensure that the insulation between resistive element and pedestal.
By the fastening and location nut of pedestal and junction, resistive element end is arranged hexagon nut with flange, and end face of flange is with locking teeth, has better anti-loosening property after fastening.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of neutral point grounding resistor described in the utility model;
Fig. 2 is the structural representation insulated in Fig. 1 to pad;
In figure:
1, pedestal, 2, resistive element, 3, skeleton screw mandrel, 4, insulate to pad, 5, nut, 6, micanite pipe, 7, convex pad, 8, recessed pad, 9, middle through hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment is as shown in Figure 1 and Figure 2 known, a kind of neutral point grounding resistor described in the utility model, it is characterized in that, comprising: pedestal 1, resistive element 2, skeleton screw mandrel 3 and insulation are to pad 4, and skeleton screw mandrel 3 runs through pedestal 1, resistive element 2 and insulation to pad 4; Insulate to pad (4) between pedestal 1 and resistive element 2; Pedestal 1 is fastenedly connected by nut 5 with the end of resistive element 2; Insulate insulation that pad 4 is made for bakelite to pad.Insulation comprises to pad 4 the convex pad 7 and recessed pad 8 that cooperatively interact, and the centre of convex pad 7 and recessed pad 8 is equipped with for passing through hole 9 in skeleton screw mandrel 3.
The outer cover of above-mentioned skeleton screw mandrel 3 has micanite pipe 6.The insulation of bakelite material to the micanite pipe 6 of the good insulating performance of pad 4 self and skeleton screw mandrel 3 outer cover with the use of, more effectively ensure that the insulation between resistive element 2 and pedestal 1.
Above-mentioned nut 5 is hexagon nut with flange, and the flange face of hexagon nut with flange is with locking teeth, has better anti-loosening property after fastening.
Above-mentioned neutral point grounding resistor when assembling, directly by skeleton screw mandrel 3 through insulation in through hole 9 in pad 4, insulating cooperatively interacts to the convex pad 7 of pad 4 and recessed pad 8, and pedestal 1 can be clamped by centre.
In sum, the utility model, by the insulated part of neutral point grounding resistor being arranged to insulation property and the higher bakelite insulated with material of structural strength to pad, effectively prevent resistor and to be burnt under the high temperature conditions and structure is simple, easy to process.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a neutral point grounding resistor, it is characterized in that, comprise: pedestal (1), resistive element (2), skeleton screw mandrel (3) and insulation are to pad (4), and described skeleton screw mandrel (3) runs through described pedestal (1), described resistive element (2) and described insulation to pad (4); Described insulation is positioned between described pedestal (1) and described resistive element (2) to pad (4); Described pedestal (1) is fastenedly connected by nut (5) with the end of described resistive element (2); The insulation that described insulation is made for bakelite pad (4) is to pad.
2. a kind of neutral point grounding resistor according to claim 1, it is characterized in that, described insulation comprises to pad (4) the convex pad (7) and recessed pad (8) that cooperatively interact, and the centre of described convex pad (7) and recessed pad (8) is equipped with for the middle through hole (9) through described skeleton screw mandrel (3).
3. a kind of neutral point grounding resistor according to claim 1 and 2, is characterized in that, the outer cover of described skeleton screw mandrel (3) has micanite pipe (6).
4. a kind of neutral point grounding resistor according to claim 1, is characterized in that, described nut (5) is hexagon nut with flange, and the flange face of described hexagon nut with flange is with locking teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871086.0U CN204288981U (en) | 2014-12-31 | 2014-12-31 | A kind of neutral point grounding resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871086.0U CN204288981U (en) | 2014-12-31 | 2014-12-31 | A kind of neutral point grounding resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204288981U true CN204288981U (en) | 2015-04-22 |
Family
ID=52872115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871086.0U Expired - Fee Related CN204288981U (en) | 2014-12-31 | 2014-12-31 | A kind of neutral point grounding resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204288981U (en) |
-
2014
- 2014-12-31 CN CN201420871086.0U patent/CN204288981U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204288981U (en) | A kind of neutral point grounding resistor | |
| CN203850456U (en) | Bolting type wire connector for high voltage power transmission line | |
| CN206992492U (en) | A kind of stand for power transmission and distribution | |
| CN203086121U (en) | Falling type lightning arrester structure | |
| CN104426088A (en) | Voltage transformer handcart | |
| CN204216244U (en) | 10 kilovolts of platform district ground connection link devices | |
| CN204087956U (en) | A kind of neutral point grounding resistor | |
| CN104008916B (en) | The part flow arrangement of on-line treatment horizontal rotation type high-voltage isolation switch sluice gate heating | |
| CN207367910U (en) | A kind of DC fuse switch | |
| CN203632140U (en) | Bolt-type ground protection fixing device | |
| CN204464165U (en) | A kind of insulating cylinder | |
| CN202949188U (en) | Cable busbar connector insulation protective device | |
| CN205092332U (en) | Transformer substation uses earth connection | |
| CN205911279U (en) | 35kV high tension switchgear PT is insurable quick installation device once | |
| CN204029752U (en) | Fuse switch electricity-detection grounding device | |
| CN204332888U (en) | Fuse fixture | |
| CN205230919U (en) | Isolator moving contact safety connecting device | |
| CN203850446U (en) | Civil engineering switchgear room grounding net | |
| CN205211967U (en) | Join in marriage electric network line maintenance and use ground connection discharge device | |
| CN103839657B (en) | A kind of neutral point for transformer and the two grounding system of shell | |
| CN203799779U (en) | Neutral point and shell double-grounding system for transformer | |
| CN204577938U (en) | A kind of outdoor disconnector motor-operating mechanism Installation and Debugging platform | |
| CN204333620U (en) | Condenser type compound insulated bus syndeton | |
| CN204391591U (en) | A kind of fixed type double-column high-voltage switch cabinet | |
| CN203707352U (en) | Low voltage branch box grounding prolongation suspension member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |