CN205723029U - A kind of resistance of novel suppression DC magnetic bias current - Google Patents
A kind of resistance of novel suppression DC magnetic bias current Download PDFInfo
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- CN205723029U CN205723029U CN201620322952.XU CN201620322952U CN205723029U CN 205723029 U CN205723029 U CN 205723029U CN 201620322952 U CN201620322952 U CN 201620322952U CN 205723029 U CN205723029 U CN 205723029U
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- serpentine
- resistance
- serpentine resistive
- bias current
- inlet wire
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- 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
- H01C3/10—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element having zig-zag or sinusoidal configuration
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- Microelectronics & Electronic Packaging (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
This utility model have employed the resistance of a kind of novel suppression DC magnetic bias current, sheet is connected including resistor disc framework, serpentine resistive unit, standing screw, inlet wire termination or wire outlet end, inlet wire insulation sleeve or outlet insulation sleeve, serpentine resistive lamella, serpentine resistive unit, it is ribbon resistance sheet material, serpentine-like, and turn at serpentine bend and at song, to be provided with installation hanging feet, serpentine resistive unit is in upper and lower parallel installation in resistor disc framework, and serpentine resistive lamella connects sheet by connected in series or in parallel for serpentine resistive unit.Serpentine resistive unit uses certain thickness ribbon resistance sheet material, processing to be rolled into snakelike, and serpentine resistive unit uses multilayer parallel to arrange, and has volume little, high-power feature.Solve the resistance volume that in extra-high voltage DC transmission system single-stage Transmission Mode, transformer station's neutral ground loop installs additional little, the technical problem of heavy current impact can be born.
Description
Technical field
This utility model relates to the device suppressing DC magnetic bias current in a kind of novel extra-high voltage DC transmission system, belongs to
In extra-high voltage direct-current transmission and remote conveying power transformation technology field.
Background technology
In the single-stage Transmission Mode of extra-high voltage direct-current transmission, its earthing pole periphery is interior in a big way, the electricity of each transformer station
Power transformer neutral point flows into DC magnetic bias current.DC magnetic bias current can make the iron core of transformator magnetize, current waveform distorts,
Vibration and noise aggravate.When DC magnetic bias current is big to a certain extent, transformer safety will be had a strong impact on and run.In existing change
In power station, transformer neutral point is directly grounded by reactor.The safety operation level of transformator to be improved, i.e. can have
Effect suppression transformer neutral point DC magnetic biasing electric current, can reliably protect again the transformator neutral conductor to exempt from because of big electric current overvoltage
Damage equipment insulate, and is necessary for installing resistance device additional in transformer station's neutral ground loop of influenced by DC magnetic biasing.If former
Installing resistance device after reactor additional, there is floor space big, on-the-spot increase equipment is more, and the high difficulty of construction cost has
Transformer station even cannot install additional in original space.Even if having can install additional, but larger current can be carried due to existing
Chip resistor, series resistor sheet head and the tail connection sheet is welded to connect after generally being concatenated by screw rod by multi-disc resistor disc by again
And form.The chip resistor of this form, though can bear bigger electric current compared with wire wrap resistor.But due between resistor disc
Be connected by connect sheet and connect, be easily formed weld defect, junction contact resistance is relatively big, easily generates heat when big electric current passes through,
Thus limit the current carrying capacity of chip resistor.
Therefore, the resistance not only volume installed additional in transformer station's neutral ground loop is little, still suffers from rushing of big electric current
Hit is that extra-high voltage DC transmission system single-stage Transmission Mode suppression DC magnetic bias current field needs to be solved the technical problem that.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of extra-high voltage DC transmission system transformer station that adapts to and becomes
Depressor neutral ground, there is volume little, power is big, under the conditions of the impact of big electric current, effectively suppresses transformer neutral point
The resistor of DC magnetic bias current.
In order to solve above-mentioned technical problem, adopt the technical scheme that: use a kind of novel suppression DC magnetic bias current
Resistance, it is characterised in that the resistance of described novel suppression DC magnetic bias current includes resistor disc framework, serpentine resistive unit, consolidates
Determine screw rod, inlet wire termination or wire outlet end, inlet wire insulation sleeve or outlet insulation sleeve, serpentine resistive lamella connects sheet, described Serpentis
Shape resistance unit, is ribbon resistance sheet material, serpentine-like, and turns at serpentine bend and be provided with installation hanging feet at song, described snakelike electricity
Resistance unit is in upper and lower parallel installation in resistor disc framework, and described serpentine resistive lamella connects sheet and connected by serpentine resistive unit
Or be connected in parallel.
Preferably resistor disc framework, metallic plate flanging the quadra connected.
Preferably described standing screw, is that two ends set threaded polished rod, and insulating spacer is spaced serpentine resistive list successively
Installation hanging feet in unit, and by the installing hole on serpentine resistive sheet framework, with nut, serpentine resistive blade unit is fixed.
Preferably described inlet wire insulation sleeve or outlet insulation sleeve, be arranged at described resistor disc frame mounting hole, institute
Inlet wire termination or wire outlet end one end of stating connect with serpentine resistive unit, and the other end is from inlet wire insulation sleeve or outlet insulation sleeve
Stretch out in endoporus, as described inlet wire termination or the binding post of wire outlet end.
The resistance of described novel suppression DC magnetic bias current, serpentine resistive unit uses certain thickness ribbon resistance plate
Material, processing is rolled into snakelike, overcomes being connected by between resistor disc and connects sheet connection, is easily formed weld defect, and junction connects
Resistance of getting an electric shock is relatively big, the easily defect of heating.Serpentine resistive unit uses multilayer parallel to arrange, and has volume little, high-power feature.
Solve the resistance volume that in extra-high voltage DC transmission system single-stage Transmission Mode, transformer station's neutral ground loop installs additional little,
The technical problem of heavy current impact can be born.Reduce extra-high voltage DC transmission system transformer substation construction cost and maintenance cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electric resistance structure of a kind of novel suppression DC magnetic bias current；
Fig. 2 is the structural representation of the resistance sheet framework of a kind of novel suppression DC magnetic bias current.
Fig. 3 is the structural representation of the resistance serpentine resistive unit of a kind of novel suppression DC magnetic bias current.
Fig. 4 is the structural representation of the resistance standing screw of a kind of novel suppression DC magnetic bias current.
Fig. 5 is that the resistance of a kind of novel suppression DC magnetic bias current enters (going out) end structural representation.
Fig. 6 is the resistance serpentine resistive chip architecture schematic diagram of a kind of novel suppression DC magnetic bias current.
Fig. 7 is that the resistance of a kind of novel suppression DC magnetic bias current fixes the structural representation into (going out) line insulation sleeve.
Fig. 8 is the structural representation of the resistance installation hanging feet of a kind of novel suppression DC magnetic bias current.
Description of reference numerals:
100-resistor disc framework；101-inlet wire insulation sleeve or the installing hole of outlet insulation sleeve；The peace of 102-standing screw
Dress hole；200-serpentine resistive unit；201-serpentine resistive sheet；At 2011-serpentine resistive bending tablet；202-serpentine resistive
Sheet installs hanging feet；2021-resistor disc serpentine bend faying face；2022-installing hole；203-serpentine resistive sheet line；
300 standing screws；301 screw rods；302 insulating spacer；303 install nut；400 inlet wire termination or wire outlet ends；
401 inlet wire termination or wire outlet ends；402 serpentine resistive strip terminals；5 inlet wire insulation sleeves or outlet insulation sleeve；6 resistance
Lamella connects sheet.
Detailed description of the invention
For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.Implement
Example
As shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 8, the resistance of a kind of novel suppression DC magnetic bias current, described novel suppression is straight
The resistance of stream bias current includes resistor disc framework 100, serpentine resistive unit 200, standing screw 300, inlet wire termination or outlet
Termination 400, inlet wire insulation sleeve or outlet insulation sleeve 5, serpentine resistive lamella connect sheet 6, described serpentine resistive unit 200, are
Ribbon resistance sheet material, serpentine-like, and serpentine bend turn be provided with at song installation hanging feet 202, one end on described installation hanging feet 202
Being provided with and turn the bent 2011 connection faying faces 2021 matched with serpentine resistive sheet 201 serpentine bend, the other end is provided with and standing screw
The installing hole 2022 that 300 match, described serpentine resistive unit 200 in resistor disc framework 100 in upper and lower parallel installation, described
Serpentine resistive unit 200 in resistor disc framework 100, parallel installation two layers also can parallel installation multilamellar.Described serpentine resistive
Lamella connects sheet 6 by connected in series or in parallel for serpentine resistive unit 200.
As shown in Fig. 3,4,6, resistor disc framework 100, metallic plate flanging the quadra connected.Standing screw 300, be
Two ends set threaded polished rod, and insulating spacer 302 is spaced the installation hanging feet 202 on serpentine resistive unit successively, and passes through resistance
Installing hole 102 on sheet framework 100, fixes serpentine resistive blade unit 200 with spiral shell/303.
Such as Fig. 2, shown in 7, inlet wire insulation sleeve or outlet insulation sleeve 5, it is arranged on described resistor disc framework 100 installing hole
At 101, described inlet wire termination or wire outlet end 400,401 one end connect with serpentine resistive list/200, and the other end is exhausted from inlet wire
Stretch out in the endoporus of edge set or outlet insulation sleeve 5, as described inlet wire termination or the binding post of wire outlet end 400,401,
The installing hole 101 of inlet wire insulation sleeve or outlet insulation sleeve 5 is square.
The present embodiment is not intended to the number of combinations of serpentine resistive dice, can be not intended to the abnormity of overall structure etc., as long as
Similar to present configuration all at scope.
Claims (4)
1. the resistance of a novel suppression DC magnetic bias current, it is characterised in that the electricity of described novel suppression DC magnetic bias current
Resistance includes that resistor disc framework, serpentine resistive unit, standing screw, inlet wire termination or wire outlet end, inlet wire insulation sleeve or outlet are exhausted
Edge set, serpentine resistive lamella connect sheet, and described serpentine resistive unit, is ribbon resistance sheet material, serpentine-like, and at serpentine bend
Turning and be provided with installation hanging feet at song, described serpentine resistive unit is in upper and lower parallel installation in resistor disc framework, and described is snakelike
Resistance lamella connects sheet by connected in series or in parallel for serpentine resistive unit.
The resistance of a kind of novel suppression DC magnetic bias current the most as claimed in claim 1, it is characterised in that resistor disc framework, by
The quadra that metallic plate flanging connects.
The resistance of a kind of novel suppression DC magnetic bias current the most as claimed in claim 1, it is characterised in that described fixing spiral shell
Bar, is that two ends set threaded polished rod, and insulating spacer is spaced the installation hanging feet on serpentine resistive unit successively, and by snakelike electricity
Installing hole on resistance sheet framework, fixes serpentine resistive blade unit with nut.
The resistance of a kind of novel suppression DC magnetic bias current the most as claimed in claim 1, it is characterised in that described inlet wire is exhausted
Edge set or outlet insulation sleeve, be arranged at described resistor disc frame mounting hole, described inlet wire termination or wire outlet end one end
Connecting with serpentine resistive unit, the other end stretches out in the endoporus of inlet wire insulation sleeve or outlet insulation sleeve, as described inlet wire
Termination or the binding post of wire outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322952.XU CN205723029U (en) | 2016-04-18 | 2016-04-18 | A kind of resistance of novel suppression DC magnetic bias current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322952.XU CN205723029U (en) | 2016-04-18 | 2016-04-18 | A kind of resistance of novel suppression DC magnetic bias current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723029U true CN205723029U (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620322952.XU Active CN205723029U (en) | 2016-04-18 | 2016-04-18 | A kind of resistance of novel suppression DC magnetic bias current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205723029U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136902A (en) * | 2019-05-08 | 2019-08-16 | 凌海科诚电气股份公司 | A kind of high voltage non-inductance resistor device and preparation method thereof |
| CN113314283A (en) * | 2021-07-01 | 2021-08-27 | 浙江日新电气有限公司 | Direct-current magnetic bias suppression device and heat dissipation method for high-voltage direct-current power transmission system |
| CN114388208A (en) * | 2022-01-28 | 2022-04-22 | 株洲中车奇宏散热技术有限公司 | Snake-shaped resistor bending method and crowbar resistor |
-
2016
- 2016-04-18 CN CN201620322952.XU patent/CN205723029U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136902A (en) * | 2019-05-08 | 2019-08-16 | 凌海科诚电气股份公司 | A kind of high voltage non-inductance resistor device and preparation method thereof |
| CN113314283A (en) * | 2021-07-01 | 2021-08-27 | 浙江日新电气有限公司 | Direct-current magnetic bias suppression device and heat dissipation method for high-voltage direct-current power transmission system |
| CN113314283B (en) * | 2021-07-01 | 2021-12-07 | 浙江日新电气有限公司 | Direct-current magnetic bias suppression device and heat dissipation method for high-voltage direct-current power transmission system |
| CN114388208A (en) * | 2022-01-28 | 2022-04-22 | 株洲中车奇宏散热技术有限公司 | Snake-shaped resistor bending method and crowbar resistor |
| CN114388208B (en) * | 2022-01-28 | 2023-12-15 | 株洲中车奇宏散热技术有限公司 | Snake-shaped resistor bending method and crowbar resistor |
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| GR01 | Patent grant |