CN105702396A - Neutral grounding resistor applicable to high power and high current - Google Patents
Neutral grounding resistor applicable to high power and high current Download PDFInfo
- Publication number
- CN105702396A CN105702396A CN201610197946.0A CN201610197946A CN105702396A CN 105702396 A CN105702396 A CN 105702396A CN 201610197946 A CN201610197946 A CN 201610197946A CN 105702396 A CN105702396 A CN 105702396A
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- CN
- China
- Prior art keywords
- resistor
- disc
- phlogopite
- jet
- side plate
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
- H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Adjustable Resistors (AREA)
Abstract
The invention relates to the technical field of resistors, and especially relates to a neutral grounding resistor applicable to high power and high current. The neutral grounding resistor comprises a resistor, a mounting lateral plate and a supporting insulator, wherein the resistor is fixedly installed by the mounting lateral plate, and the supporting insulator is arranged at the bottom part of the mounting lateral plate; a resistor disc of the resistor is a nickel-chromium alloy resistor disc, and the resistor disc is configured with a plurality of stamping notches; the edges of the stamping notches are bent outward, and the stamping notches are separated by phlogopite crosswise; phlogopite parting strips are strung on an upper side and a lower side of the resistor disc, and steel disc edges are arranged at the outsides of the phlogopite parting strips; ribbing is performed on the steel disc edges, which can increase the weight of the resistor, withstand large current impact, and improve the safety performance and service life of the resistor.
Description
Technical field
The present invention relates to resistor technologies field, especially relate to a kind of neutral point grounding resistor suitable in high-power high-current。
Background technology
The existing resistance to rush of current of earth resistance resistor disc is low, and identical parameters volume is big, temperature rise。It is said that in general, resistor plays main metering function, phase voltage major part will drop on this resistor, and the power that it absorbs is substantially equal to the product of phase voltage and fault current, thousands of to the tens thousand of kW of its power Chang Gaoda。Resistor disc is under dash current affects, and at short notice, resistance temperature raises rapidly。Additionally, temperature rising can cause resistor disc and air generation oxidation reaction, temperature rise is more violent, reacts also more violent。After resistor disc oxidation by air, the electrical characteristic of resistor disc can be allowed to change, affect the functional reliability of resistor disc, reduce the working life of resistor disc。The defect of existing product: the earthing mode of big electric current is because of its short circuit current big (100 ~ 2000A), persistent period short (10s), temperature rise (reaches as high as about 900 DEG C), to the performance impact of grounding resistor alloy material clearly, it is easy to the accident that resistor damages because of scorification or deformation occurs。
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of neutral point grounding resistor suitable in high-power high-current, and it increases resistor weight, can bear heavy current impact, improves resistor security performance and service life。
The present invention adopts following technological means to realize goal of the invention。
A kind of neutral point grounding resistor suitable in high-power high-current, it includes resistor, installs side plate and support insulator, installs side plate and fixedly mounts described resistor, and support insulator is arranged at the bottom installing side plate；The resistor disc of described resistor is nichrome resistor disc, resistor disc offers some jet-beddings, the bending outward of the trough rim of jet-bedding, adopt phlogopite to intersect between jet-bedding with jet-bedding to separate, the side up and down of resistor disc has all gone here and there phlogopite parting bead, outside phlogopite parting bead, bag is provided with steel disc bound edge again, and steel disc bound edge is carried out beading。
Further, described installation side plate offers louvre。
Further, described support insulator is high intensity porcelain knob。
Present invention have the beneficial effect that a kind of neutral point grounding resistor suitable in high-power high-current of the present invention, it increases resistor weight, can bear heavy current impact, improves resistor security performance and service life。
Accompanying drawing explanation
Fig. 1 is the resistor disc left view of the present invention。
Fig. 2 is the structural representation of the resistor disc string phlogopite parting bead of the present invention。
Fig. 3 is the structural representation that the resistor disc of the present invention arranges steel disc bound edge。
Fig. 4 is the structural representation of the resistor disc bound edge beading of the present invention。
Fig. 5 is the partial schematic diagram of the resistor disc bound edge beading of the present invention。
Fig. 6 is the front view of the present invention。
Fig. 7 is the left view of the present invention。
Detailed description of the invention
The invention provides a kind of neutral point grounding resistor suitable in high-power high-current, below in conjunction with accompanying drawing, the present invention is described in detail。
As described in Fig. 1 ~ Fig. 7, a kind of neutral point grounding resistor suitable in high-power high-current of the present invention, it includes resistor, installs side plate 4 and support insulator 5, installs side plate 4 and fixedly mounts described resistor, and support insulator 5 is arranged at the bottom installing side plate 4；The resistor disc 1 of described resistor is nichrome resistor disc, resistor disc 1 offers some jet-beddings 10, trough rim 11 bending outward of jet-bedding 10, adopt phlogopite to intersect between jet-bedding 10 with jet-bedding 10 to separate, the side up and down of resistor disc 1 has all gone here and there phlogopite parting bead 2, the outside bag again of phlogopite parting bead 2 is provided with steel disc bound edge 3, and steel disc bound edge 3 is carried out beading。Described resistor disc 1 has the tearing port that some jet-beddings 10 are formed, resistance can arbitrarily be adjusted by the increase and decrease of groove number, with traditional resistor sheet 1 in order to increase resistance compared with the resistance in whole piece jet-bedding 10 all removes, part is needed trough rim 11 bending outward of the jet-bedding 10 removed by the resistor disc 1 of described resistor originally, owing to slot pitch reduces after bending, entirety reduces volume, and adds resistor weight, thus reaching to bear the purpose of heavy current impact。Adopt phlogopite to intersect between groove and the groove of the jet-bedding 10 of described resistor disc 1 to separate, prevent electric power from producing heat and cause adhesive, affect the stability of resistance, string has phlogopite parting bead 2 and bag to set steel disc bound edge 3 again, increase resistor disc 1 intensity, by carrying out beading between the every groove outside steel disc bound edge 3, it is prevented that slide between groove and groove, reach fixation。
Further, described installation side plate 4 offers louvre, installs side plate 4 and installs for resistor, play fixation and Intermediate Gray louvre, increases heat loss through convection, greatly reduce the heat between resistor。Further, described support insulator 5 is high intensity porcelain knob, adopts high intensity porcelain to make, and good electric property, creep age distance are high。Preferably, the groove end corner of described jet-bedding 10 adopts oval structure, it is possible to decrease electric current density, it is prevented that big heating effect of current and cause that resistor disc 1 melts。
In sum, a kind of neutral point grounding resistor suitable in high-power high-current of the present invention has the advantage that one, the jet-bedding of resistor disc 1 10 by tearing, bending, increase resistor weight, heavy current impact can be born。Two, compact conformation, volume are little, connect reliable, save cabinet space。Three, adopting double insulation, stability is strong, and electric property is high。Four, temperature rise coefficient is low, resistance varying-ratio is little。
The above is only the better embodiment of the present invention, therefore all equivalences done according to the structure described in present patent application scope, feature and principle change or modify, and are all included within the scope of present patent application。
Claims (3)
1. the neutral point grounding resistor being applicable to high-power high-current, it is characterized in that: it includes resistor, installs side plate (4) and support insulator (5), installing side plate (4) and fixedly mount described resistor, support insulator (5) is arranged at the bottom installing side plate (4)；The resistor disc (1) of described resistor is nichrome resistor disc, resistor disc (1) offers some jet-beddings (10), trough rim (11) bending outward of jet-bedding (10), adopt phlogopite to intersect between jet-bedding (10) with jet-bedding (10) to separate, the side up and down of resistor disc (1) has all gone here and there phlogopite parting bead (2), the outside bag again of phlogopite parting bead (2) is provided with steel disc bound edge (3), and steel disc bound edge (3) is carried out beading。
2. a kind of neutral point grounding resistor suitable in high-power high-current according to claim 1, is characterized in that: described installation side plate (4) offers louvre。
3. a kind of neutral point grounding resistor suitable in high-power high-current according to claim 2, is characterized in that: described support insulator (5) is high intensity porcelain knob。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197946.0A CN105702396A (en) | 2016-03-31 | 2016-03-31 | Neutral grounding resistor applicable to high power and high current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197946.0A CN105702396A (en) | 2016-03-31 | 2016-03-31 | Neutral grounding resistor applicable to high power and high current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105702396A true CN105702396A (en) | 2016-06-22 |
Family
ID=56218156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197946.0A Pending CN105702396A (en) | 2016-03-31 | 2016-03-31 | Neutral grounding resistor applicable to high power and high current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105702396A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369509A (en) * | 2017-06-30 | 2017-11-21 | 湖南福德电气有限公司 | A kind of resistor disc binding structure |
| CN109686518A (en) * | 2019-02-13 | 2019-04-26 | 苏州卯是卯自动化设备有限公司 | A kind of extra quality edge covering mechanism of resistor disc |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191514164A (en) * | 1915-10-06 | 1916-06-01 | John Collinson | Improvements in Electrical Resistances. |
| US1418834A (en) * | 1920-10-18 | 1922-06-06 | Satchwell Leonard | Manufacture of grid resistances |
| US4588976A (en) * | 1984-11-19 | 1986-05-13 | Microelettrica Scientifica S.P.S. | Resistors obtained from sheet material |
| CN2318695Y (en) * | 1997-08-18 | 1999-05-12 | 象山正泰电器有限公司 | Resistor |
| CN201036094Y (en) * | 2007-04-30 | 2008-03-12 | 吴江市苏杭电气有限公司 | Novel metal plate electrical resistor |
| CN205656925U (en) * | 2016-03-31 | 2016-10-19 | 湖南福德电气有限公司 | Neutral resistance ware suitable for high -power heavy current |
-
2016
- 2016-03-31 CN CN201610197946.0A patent/CN105702396A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191514164A (en) * | 1915-10-06 | 1916-06-01 | John Collinson | Improvements in Electrical Resistances. |
| US1418834A (en) * | 1920-10-18 | 1922-06-06 | Satchwell Leonard | Manufacture of grid resistances |
| US4588976A (en) * | 1984-11-19 | 1986-05-13 | Microelettrica Scientifica S.P.S. | Resistors obtained from sheet material |
| CN2318695Y (en) * | 1997-08-18 | 1999-05-12 | 象山正泰电器有限公司 | Resistor |
| CN201036094Y (en) * | 2007-04-30 | 2008-03-12 | 吴江市苏杭电气有限公司 | Novel metal plate electrical resistor |
| CN205656925U (en) * | 2016-03-31 | 2016-10-19 | 湖南福德电气有限公司 | Neutral resistance ware suitable for high -power heavy current |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369509A (en) * | 2017-06-30 | 2017-11-21 | 湖南福德电气有限公司 | A kind of resistor disc binding structure |
| CN109686518A (en) * | 2019-02-13 | 2019-04-26 | 苏州卯是卯自动化设备有限公司 | A kind of extra quality edge covering mechanism of resistor disc |
| CN109686518B (en) * | 2019-02-13 | 2023-11-03 | 苏州卯是卯自动化设备有限公司 | Resistor disc double-material edge covering mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |
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| RJ01 | Rejection of invention patent application after publication |