CN207459430U - A kind of novel electricity generator neutral-point grounding resistance cabinet - Google Patents
A kind of novel electricity generator neutral-point grounding resistance cabinet Download PDFInfo
- Publication number
- CN207459430U CN207459430U CN201721322896.0U CN201721322896U CN207459430U CN 207459430 U CN207459430 U CN 207459430U CN 201721322896 U CN201721322896 U CN 201721322896U CN 207459430 U CN207459430 U CN 207459430U
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- Prior art keywords
- resistor
- point grounding
- frame body
- box frame
- neutral
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- 230000005611 electricity Effects 0.000 title claims abstract description 24
- 230000007935 neutral effect Effects 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 239000012212 insulator Substances 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 6
- 239000010960 cold rolled steel Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001120 nichrome Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of novel electricity generator neutral-point grounding resistance cabinets, low voltage control room and disconnecting switch body set up top both sides in resistor box frame body separately, neutral point grounding resistor is located at the same side-lower in low voltage control room, neutral point grounding resistor is located at by high-tension insulator on resistor box frame body bottom plate, current transformer and neutral point grounding resistor set up the both sides in resistor box frame body separately, cable bus is folded in below current transformer, connect cable of high pressure between disconnecting switch body end of incoming cables and current transformer leading-out terminal copper bar, disconnecting switch body leading-out terminal is connected with neutral point grounding resistor end of incoming cables, neutral point grounding resistor leading-out terminal is connected with main grounding copper bar, main grounding copper bar is located at by the resistor box frame body bottom plate of neutral point grounding resistor one side, resistor box frame body surrounding is removable side panel.Compact-sized, each component arrangement is clear neat, and cabinet surrounding is removable side panel, convenient for installation and maintenance.
Description
Technical field
The utility model is related to a kind of generator, more particularly, to a kind of generator neutral point earthing resistance cabinet.
Background technology
In the process of running, it is most common failure that single-phase earthing occurs to generator, when arcing ground occurs in trouble point
It then can further expand stator winding insulation damage and even result in iron core and burn sintering, such as discovery and quickly cut off not in time, therefore
Barrier will develop into alternate or turn-to-turn short circuit.And existing generator neutral point high resistance grounding is there is complicated, arrangement is not
Enough reasonable, installation attended operation trouble, there are the problems such as security performance hidden danger.
Utility model content
There is complicated, arrangement not enough conjunctions to solve neutral point high resistance grounding in existing generator for the utility model
Reason, installation attended operation trouble, the one kind provided there are present situations such as security performance hidden danger is compact-sized, and arrangement is clear neat,
Cabinet surrounding is removable side panel, convenient for installation and maintenance, is kept apart by the sensing electric current gathered on current transformer to control
The conjunction isloation state of pass ensures that power-off is reliable, improves the novel electricity generator neutral-point grounding resistance cabinet of security performance.
Used specific technical solution is the utility model to solve above-mentioned technical problem：A kind of novel electricity generator is neutral
Point earthing resistance cabinet, it is characterised in that：Including resistor box frame body and be located inside resistor box frame body current transformer, in
Property point grounding resistor, low voltage control room, high-tension insulator, main grounding copper bar, cable bus folder and disconnecting switch body, wherein
Low voltage control room and disconnecting switch body are respectively provided at two side position of resistor box frame body inner upper, neutral resistance
Device is located at low voltage control room homonymy lower position, and neutral point grounding resistor is located at resistor box frame body by high-tension insulator
On bottom plate, neutral point grounding resistor is set inside resistor box frame body into genesis analysis, and current transformer and neutral point connect
Ground resistance device is separately positioned on inside resistor box frame body at two side positions, and cable bus is folded in the end of incoming cables of current transformer
Copper bar lower position connects cable of high pressure between disconnecting switch body end of incoming cables and current transformer leading-out terminal copper bar, every
It is electrically connected from Switch main body leading-out terminal and neutral point grounding resistor end of incoming cables, neutral point grounding resistor leading-out terminal connects with master
Ground copper bar is electrically connected, and main grounding copper bar is located on the resistor box frame body bottom plate by neutral point grounding resistor side,
Generator is each equipped with independent current transformer per phase line, and each current transformer is inside resistor box frame body into transversely arranged
Side edge inside resistor box frame body, resistor box frame body surrounding are removable side panel.By disconnecting switch body, neutral point
A variety of components such as grounding resistor, current transformer are placed in same resistor box frame body, compact-sized, each component arrangement
Clear neat, cabinet surrounding is removable side panel, convenient for installation and maintenance, is controlled by gathering the sensing electric current on current transformer
The conjunction isloation state of disconnecting switch processed ensures that power-off is reliable, improves security performance.
Preferably, the leading-out terminal copper bar of current transformer is located at the copper bar top position of end of incoming cables.Improve Current Mutual Inductance
The reasonable compactedness of distribution rationality and internal wiring of device.
Preferably, two layers of the disconnecting switch up and down being equipped in the resistor box frame body at the positive upper and lower position of homonymy
Body, wherein one layer of disconnecting switch body is located at current transformer inner side below.Improve seperating safety.
Preferably, the resistor box frame body includes side door plate and frame body, frame body, which uses, includes C fonts
Front and rear crossbeam, C fonts side crossbeam, six flanging vertical beams and connector connect and compose jointly.Improve the whole jail of resistor box frame body
Gu reliability improves wiring security reliability.
Preferably, crossbeam and C fonts side crossbeam use the C words that cold-rolled steel sheet bending forms before and after the C fonts
Type structure.Resistor box frame body entirety firm reliability is improved, improves wiring security reliability.
Preferably, the six flanging knots that the six flanging vertical beams are formed using cold-rolled steel sheet by five continuous bendings
Structure, six folded edges form two symmetrical zig-zag type connectors in truncation surface structure.Improve the whole jail of resistor box frame body
Gu reliability improves wiring security reliability.
Preferably, the neutral point grounding resistor is ferrum-chromium-aluminum, nichrome or stainless steel structure, it is described
The resistance of neutral point grounding resistor is grid-type electric resistance structure.It is strong, resistance to improve neutral point grounding resistor conductivity, through-current capability
High temperature, tissue stabilization, corrosion-resistant, burn-proof and explosion prevention, reliability are high.
Preferably, the low voltage control room is assembled into an isolation ward by sheet metal component, and it is fixed on frame body,
Separate a secondary circuit.Safety utilization of electric power safety and high-low pressure shielding isolation effect are improved, improves operator safety.
Preferably, being equipped with lamina tecti at the top of the resistor box frame body, four corner positions are equipped with above lamina tecti
Hook.Improve property convenient for installation and maintenance.
The beneficial effects of the utility model are：Disconnecting switch body, neutral point grounding resistor, current transformer etc. is more
Kind component is placed in same resistor box frame body, compact-sized, and each component arrangement is clear neat, and cabinet surrounding is detachable
Side plate, it is convenient for installation and maintenance, the conjunction isloation state of disconnecting switch is controlled by gathering the sensing electric current on current transformer, is ensured
Power-off is reliable, improves security performance.
Description of the drawings：
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the side structure schematic view of the utility model novel electricity generator neutral-point grounding resistance cabinet.
Fig. 2 is the dimensional structure diagram of the utility model novel electricity generator neutral-point grounding resistance cabinet.
Fig. 3 is the frame body structure diagram of the utility model novel electricity generator neutral-point grounding resistance cabinet.
Fig. 4 is the six flanging vertical beam structure partials amplification signal of the utility model novel electricity generator neutral-point grounding resistance cabinet
Figure.
Fig. 5 is the connecting-piece structure enlarged diagram of the utility model novel electricity generator neutral-point grounding resistance cabinet.
Fig. 6 is the neutral point grounding resistor structural representation of the utility model novel electricity generator neutral-point grounding resistance cabinet
Figure.
Specific embodiment
In embodiment shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of novel electricity generator neutral-point grounding resistance cabinet,
Current transformer 50, neutral point grounding resistor including resistor box frame body 10 and inside resistor box frame body 10
30th, low voltage control room 20, high-tension insulator 60, main grounding copper bar 70, cable bus folder 80 and disconnecting switch body 40, wherein low
Pressure control room 20 and disconnecting switch body 40 are set respectively at 10 inner upper of resistor box frame body, two side position, neutral point
Grounding resistor 30 is mounted on 20 homonymy lower position of low voltage control room, and neutral point grounding resistor 30 passes through high-tension insulator
60 are mounted on resistor box frame body bottom plate 13, and high-tension insulator 60 is mounted in insulator mounting base 61, insulator mounting base
61 are mounted on resistor box frame body bottom plate 13, and neutral point grounding resistor 30 is inside resistor box frame body 10 into genesis analysis
It sets, 30 the top of neutral point grounding resistor is mutually fixedly mounted on by high-tension insulator and crossbeam in resistor box frame body 10
Together, current transformer 50 and neutral point grounding resistor 30 are separately mounted at 10 two side positions of inside of resistor box frame body,
Cable bus folder 80 be mounted on current transformer 50 51 lower positions of end of incoming cables copper bar, 40 end of incoming cables of disconnecting switch body with
Cable of high pressure is connected between current transformer leading-out terminal copper bar 52, disconnecting switch body 40 is mounted on electricity by mounting bracket 41
It hinders on the interior crossbeam 18 inside cabinet frame work body 10（See Fig. 2）, 40 leading-out terminal of disconnecting switch body and neutral point grounding resistor 30
End of incoming cables is electrically connected, and 30 leading-out terminal of neutral point grounding resistor is electrically connected with main grounding copper bar 70, and main grounding copper bar 70 is logical
It crosses and is insulated seat on the resistor box frame body bottom plate 13 by 30 side of neutral point grounding resistor, generator is every
Phase line is each equipped with independent current transformer 50, and each current transformer 50 is inside resistor box frame body 10 into being horizontally arranged in
Side edge inside resistor box frame body 10, resistor box frame body surrounding are removable side panel.The leading-out terminal of current transformer 50
Copper bar 52 is mounted at 51 top position of end of incoming cables copper bar.It is equipped in resistor box frame body 10 at the positive upper and lower position of homonymy
Upper and lower two layers of disconnecting switch body 40, wherein one layer of disconnecting switch body 40 is mounted on 50 inner side of current transformer below
Place.Resistor box frame body 10 includes side door plate and frame body, and frame body, which uses, includes crossbeam 14, C fonts side before and after C fonts
Side crossbeam 15, six flanging vertical beams 11 and connector 16 connect and compose jointly.Connector 16 is using the one 90 degree of fold link block 161
The reinforcement connecting-piece structure being connected together with the 2nd 90 degree of fold link block.Improve the reinforcement connection effect of connector.C words
The C font structures that crossbeam 14 and C fonts side crossbeam 15 are formed using cold-rolled steel sheet bending before and after type.Six flanging vertical beams 11 use
Cold-rolled steel sheet passes through six folded edges that five continuous bendings form（See Fig. 4）, six folded edges are formed in truncation surface structure
Two symmetrical zig-zag type connectors.Multiple mounting holes, neutral ground electricity are provided on six flanging vertical beams 11 and connector 16
Resistance device 30 is ferrum-chromium-aluminum, nichrome or stainless steel structure, and the resistance of the neutral point grounding resistor is grid-type resistance
Structure.Low voltage control room 20 is assembled into an isolation ward by sheet metal component, and is fixed on frame body, makes a secondary circuit point
It opens.Lamina tecti 12 is installed, four corner positions are equipped with hook 17 to lamina tecti 12 above at the top of resistor box frame body.
In position relationship of the present invention description, there are the fingers such as term " interior ", " outer ", " on ", " under ", "left", "right"
Show that orientation or position relationship are based on orientation shown in the drawings or position relationship, description embodiment merely for convenience and letter
Change description rather than instruction or imply that signified device or element there must be specific orientation, with specific azimuth configuration
And operation, therefore be not considered as limiting the invention.
Claims (9)
1. a kind of novel electricity generator neutral-point grounding resistance cabinet, it is characterised in that：Including resistor box frame body and it is located at resistor box
Current transformer, neutral point grounding resistor, low voltage control room, high-tension insulator, main grounding copper bar, cable inside frame body
Bus clip and disconnecting switch body, wherein low voltage control room and disconnecting switch body are respectively provided at resistor box frame body inner upper
At two side positions, neutral point grounding resistor is located at low voltage control room homonymy lower position, and neutral point grounding resistor passes through
High-tension insulator is located on resistor box frame body bottom plate, and neutral point grounding resistor is inside resistor box frame body into genesis analysis
It sets, current transformer and neutral point grounding resistor are separately positioned on inside resistor box frame body at two side positions, and cable is female
Wire clamp is located at the end of incoming cables copper bar lower position of current transformer, disconnecting switch body end of incoming cables and current transformer leading-out terminal
Cable of high pressure is connected between copper bar, disconnecting switch body leading-out terminal is electrically connected with neutral point grounding resistor end of incoming cables, in
Property point grounding resistor leading-out terminal be electrically connected with main grounding copper bar, main grounding copper bar is located at by where neutral point grounding resistor
On the resistor box frame body bottom plate of one side, generator is each equipped with independent current transformer per phase line, and each current transformer exists
Into the side edge being horizontally arranged in inside resistor box frame body inside resistor box frame body, resistor box frame body surrounding is detachable
Side plate.
2. novel electricity generator neutral-point grounding resistance cabinet described in accordance with the claim 1, it is characterised in that：Current transformer goes out
Line end copper bar is located at the copper bar top position of end of incoming cables.
3. novel electricity generator neutral-point grounding resistance cabinet described in accordance with the claim 1, it is characterised in that：The resistor box frame
Two layers of the disconnecting switch body up and down being equipped in frame body at the positive upper and lower position of homonymy, wherein one layer of disconnecting switch body below
It is located at current transformer inner side.
4. according to the novel electricity generator neutral-point grounding resistance cabinet described in claim 1 or 3, it is characterised in that：The resistance
Cabinet frame work body includes side door plate and frame body, and frame body, which uses, includes crossbeam, C fonts side crossbeam, six foldings before and after C fonts
Side vertical beam and connector connect and compose jointly.
5. according to the novel electricity generator neutral-point grounding resistance cabinet described in claim 4, it is characterised in that：Before the C fonts
Rear cross beam and C fonts side crossbeam use the C font structures that cold-rolled steel sheet bending forms.
6. according to the novel electricity generator neutral-point grounding resistance cabinet described in claim 4, it is characterised in that：Six flangings erect
Six folded edges that beam is formed using cold-rolled steel sheet by five continuous bendings, six folded edges form two in truncation surface structure
A symmetrical zig-zag type connector.
7. novel electricity generator neutral-point grounding resistance cabinet described in accordance with the claim 1, it is characterised in that：The neutral point connects
Ground resistance device is ferrum-chromium-aluminum, nichrome or stainless steel structure, and the resistance of the neutral point grounding resistor is grid-type electricity
Hinder structure.
8. novel electricity generator neutral-point grounding resistance cabinet described in accordance with the claim 1, it is characterised in that：The low voltage control
Room is assembled into an isolation ward by sheet metal component, and is fixed on frame body, separates a secondary circuit.
9. according to the novel electricity generator neutral-point grounding resistance cabinet described in claim 1 or 3, it is characterised in that：The resistance
Lamina tecti is equipped at the top of cabinet frame work body, four corner positions are equipped with hook above lamina tecti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721322896.0U CN207459430U (en) | 2017-10-13 | 2017-10-13 | A kind of novel electricity generator neutral-point grounding resistance cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721322896.0U CN207459430U (en) | 2017-10-13 | 2017-10-13 | A kind of novel electricity generator neutral-point grounding resistance cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207459430U true CN207459430U (en) | 2018-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721322896.0U Expired - Fee Related CN207459430U (en) | 2017-10-13 | 2017-10-13 | A kind of novel electricity generator neutral-point grounding resistance cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207459430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831373A (en) * | 2019-11-21 | 2020-02-21 | 珠海格力电器股份有限公司 | Cabinet body, water conservancy module and air conditioner hot water machine for electrical equipment |
| CN113991608A (en) * | 2021-10-22 | 2022-01-28 | 浙江浙能兰溪发电有限责任公司 | Circuit breaker for improving insulation measurement safety of generator stator winding |
-
2017
- 2017-10-13 CN CN201721322896.0U patent/CN207459430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831373A (en) * | 2019-11-21 | 2020-02-21 | 珠海格力电器股份有限公司 | Cabinet body, water conservancy module and air conditioner hot water machine for electrical equipment |
| CN113991608A (en) * | 2021-10-22 | 2022-01-28 | 浙江浙能兰溪发电有限责任公司 | Circuit breaker for improving insulation measurement safety of generator stator winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 |