CN1889336A - Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end - Google Patents
Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end Download PDFInfo
- Publication number
- CN1889336A CN1889336A CN 200610010305 CN200610010305A CN1889336A CN 1889336 A CN1889336 A CN 1889336A CN 200610010305 CN200610010305 CN 200610010305 CN 200610010305 A CN200610010305 A CN 200610010305A CN 1889336 A CN1889336 A CN 1889336A
- Authority
- CN
- China
- Prior art keywords
- stator coil
- protective layer
- voltage motor
- motor stator
- coil end
- 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.)
- Pending
Links
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The present invention discloses semiconductor strain protective layer once moulding method for high voltage motor stator coil end, relating to high voltage motor stator coil end anticorona coating forming method, which solves anticorona coating along superficial breakdown and flashover, ignition and smoking etc shortages in current method of mica tape as electric protection layer resulting in voltage withstand reduced by three grades. Said method includes 1, using mica tape wrapping several layers on copper core guide rod; 2, wrapping one layer low resistivity strip in stator coil trough, wrapping one layer high-resistance strip on outer end of stator coil trough; 3, exteriority one layer glass tape on high-resistance strip outer surface; 4, wrapping one layer stripping strip on whole stator coil surface; 5, loading stator coil in mould, to make hot pressing solidifying moulding in hot pressing curing oven; 6, cooling mould to 100 degree centigrade, then removing stripping strip, to obtain once moulded glass tape protective layer on high voltage motor stator coil end. The present invention raises three voltage withstand grades, without flashover, ignition smoking phenomena.
Description
Technical field
The present invention relates to the forming method of high-voltage motor stator coil end anticorona coating protective layer.
Background technology
Between the terminal of the copper core guide rod of the low resistance anticorona coating end of the high-voltage motor stator coil in motor slot to the coil insulation high voltage differential is arranged, the electric field of low-resistance section end is concentrated, i.e. current potential abrupt change, thus produce corona.Therefore the electic protection measure will be arranged thereon, electic protection is in the influence to coil of stator of motor of the corona alternate, that interlayer produces, sparkover in the time of will eliminating the motor operation.The stator coil protective layer of existing high-voltage motor is to adopt mica tape; and mica tape is as the electic protection layer; make coil reduce Three Estate along the face puncture voltage in the withstand voltage test medial end portions; reduce to 94KV60 second from 112KV60 second; easily cause the puncture of anticorona coating along face; flashover, creepage, phenomenon such as smolder are arranged, influence the normal safe operation of motor.
Summary of the invention
The present invention is in order to solve the existing electic protection layer that adopts mica tape as stator coil; the withstand voltage Three Estate that reduced; reduce to 94KV60 second from 112KV60 second; easily cause anticorona coating along the puncture of face with flashover, creepage, the problem of smoldering are arranged; a kind of method at high-voltage motor stator coil end one-time forming glass ribbon protective layer is provided, and the concrete technical scheme that addresses the above problem is as follows:
The present invention is as follows in the step of the method for high-voltage motor stator coil end one-time forming glass ribbon protective layer:
Step 1, at stator coil copper core guide rod external application mica tape parcel several layers;
Step 2, in the groove of stator coil, hold the low stopband of layer of semiconductor material, hold the high stopband of layer of semiconductor material at the place, groove outer end of stator coil;
Step 3, hold the several layers glass tape at the outer surface of the high stopband of semiconductor material;
Step 4, at whole stator coil surfaces bag one deck demoulding band;
Step 5, stator coil is filled in the mould, mould is placed in the hot-press solidifying stove with 165 ℃ ± 5 ℃ hot-press solidifying moulding of carrying out 3.5～4.5 hours;
Step 6, with mold cools down to 100 ℃, remove demoulding band then, promptly made at the one-time formed glass ribbon protective layer in high-voltage motor stator coil end.
The present invention adopts at high-voltage motor stator coil end one-time forming glass ribbon electic protection layer; the end of high-voltage motor stator coil is compared with the mica tape protective layer along the face puncture voltage and has been improved three voltage withstand class; voltage withstand class is 112kv60 second; no flashover, creepage, phenomenon such as smolder, and the discharge of end winding and electric spark phenomenon have obtained obvious suppression.Glass tape electic protection layer makes anticorona coating place electric field even, can prevent the generation of corona, guarantees the withstand voltage of stator coil simultaneously, and motor safety is efficiently moved.This method is widely used in the protective layer of the anticorona coating of various types of high-voltage motor stator coils.
Description of drawings
Fig. 1 is a structural representation of the present invention.6 is iron cores among the figure.
Embodiment
Embodiment one: describe present embodiment in conjunction with Fig. 1.The step of the method for present embodiment is as follows:
Step 1, at stator coil copper core guide rod 1 external application mica tape 5 parcel several layers;
Step 2, in the groove of stator coil, hold the low stopband 2 of layer of semiconductor material, hold the high stopband 3 of layer of semiconductor material at the place, groove outer end of stator coil;
Step 3, hold several layers glass tape 4 at the outer surface of the high stopband 3 of semiconductor material;
Step 4, at whole stator coil surfaces bag one deck demoulding band;
Step 5, stator coil is filled in the mould, mould is placed in the hot-press solidifying stove with 165 ℃ ± 5 ℃ hot-press solidifying moulding of carrying out 3.5～4.5 hours;
Step 6, with mold cools down to 100 ℃, remove demoulding band then, promptly made one-time formed glass tape 4 protective layers in the high-voltage motor stator coil end.
Embodiment two: the thickness of the glass tape 4 of present embodiment is 0.04～0.4mm.
Embodiment three: the monolateral thickness of the mica tape 5 of present embodiment is 2.5～7.5mm.
Embodiment four: the demoulding band of present embodiment adopts polytetrafluoroethylmaterial material.
The glass tape cover layer on anticorona coating surface, end can be made of the different fiberglass braided band of thickness.The mode that holds can and around, half repeatedly around waiting bag method.
Claims (4)
1,, it is characterized in that the step of this method is as follows in the method for high-voltage motor stator coil end one-time forming glass ribbon protective layer:
Step 1, at stator coil copper core guide rod (1) external application mica tape (5) parcel several layers;
Step 2, in the groove of stator coil, hold the low stopband (2) of layer of semiconductor material, hold the high stopband (3) of layer of semiconductor material at the place, groove outer end of stator coil;
Step 3, hold several layers glass tape (4) at the outer surface of the high stopband (3) of semiconductor material;
Step 4, at whole stator coil surfaces bag one deck demoulding band;
Step 5, stator coil is filled in the mould, mould is placed in the hot-press solidifying stove with 165 ℃ ± 5 ℃ hot-press solidifying moulding of carrying out 3.5～4.5 hours;
Step 6, with mold cools down to 100 ℃, remove demoulding band then, promptly made at the one-time formed glass tape in high-voltage motor stator coil end (4) protective layer.
2, the method at high-voltage motor stator coil end one-time forming glass ribbon protective layer according to claim 1, the thickness that it is characterized in that glass tape (4) is 0.04～0.4mm.
3, the method at high-voltage motor stator coil end one-time forming glass ribbon protective layer according to claim 1, the monolateral thickness that it is characterized in that mica tape (5) is 2.5～7.5mm.
4, the method at high-voltage motor stator coil end one-time forming glass ribbon protective layer according to claim 1 is characterized in that demoulding band adopts polytetrafluoroethylmaterial material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610010305 CN1889336A (en) | 2006-07-20 | 2006-07-20 | Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610010305 CN1889336A (en) | 2006-07-20 | 2006-07-20 | Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1889336A true CN1889336A (en) | 2007-01-03 |
Family
ID=37578598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610010305 Pending CN1889336A (en) | 2006-07-20 | 2006-07-20 | Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1889336A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447361A (en) * | 2010-10-12 | 2012-05-09 | 哈尔滨电机厂有限责任公司 | Preparation method for realizing one-time dip forming of main insulation and anticorona layer of stator coil of large-scale high voltage motor |
| CN107925292A (en) * | 2015-09-09 | 2018-04-17 | 日立汽车系统株式会社 | The stator and electric rotating machine of electric rotating machine |
| CN113824235B (en) * | 2021-09-15 | 2024-04-05 | 哈尔滨电气动力装备有限公司 | 10 kV-level motor insulation system |
-
2006
- 2006-07-20 CN CN 200610010305 patent/CN1889336A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447361A (en) * | 2010-10-12 | 2012-05-09 | 哈尔滨电机厂有限责任公司 | Preparation method for realizing one-time dip forming of main insulation and anticorona layer of stator coil of large-scale high voltage motor |
| CN107925292A (en) * | 2015-09-09 | 2018-04-17 | 日立汽车系统株式会社 | The stator and electric rotating machine of electric rotating machine |
| CN107925292B (en) * | 2015-09-09 | 2019-10-29 | 日立汽车系统株式会社 | The stator and rotating electric machine of rotating electric machine |
| CN113824235B (en) * | 2021-09-15 | 2024-04-05 | 哈尔滨电气动力装备有限公司 | 10 kV-level motor insulation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100426630C (en) | Method for twining VPI corona-prevention layer between stator coil main insulating layer and corona-prevention layer | |
| US8398803B2 (en) | Method for providing an insulated electric high voltage DC cable or a high voltage DC termination or joint | |
| CN201266509Y (en) | Copper wire sparse winding shielding high-voltage cable | |
| CN102447361A (en) | Preparation method for realizing one-time dip forming of main insulation and anticorona layer of stator coil of large-scale high voltage motor | |
| CA3019562A1 (en) | Insulated winding wire articles having conformal coatings | |
| CN107039159A (en) | Electric winding, the dry-type transformer with electric winding and the method for manufacturing electric winding | |
| CN101257230A (en) | Method for manufacturing enhanced type one-shot forming anti dizzy structure of high voltage large-sized electricity generator stator coil | |
| CN107591975B (en) | Coil inserting method of stator double-layer magnetic pole coil and stator double-layer winding structure | |
| CN1889336A (en) | Method for one-time forming glass ribbon protective layer at high-voltage motor stator coil end | |
| CN104539111A (en) | Conducting ring connecting method | |
| CN203225608U (en) | Vacuum pressure impregnation-molded stator bar structure of 18kV water-pumping energy-storage set unit | |
| CN204578241U (en) | The conducting ring electricity ejector of motor | |
| CN204423982U (en) | A kind of three-phase twisted cable | |
| CN200944341Y (en) | Multi-conbination parallel wires with protection insulator | |
| CN202930124U (en) | Ratproof and anti-termite type coaxial cable for extra-high voltage electric line grounding | |
| CN113726112B (en) | Manufacturing method of stator bar with staggered corona-proof structure | |
| CN210606920U (en) | High-voltage dry-type air reactor | |
| RU227389U1 (en) | Protected wire for overhead power lines | |
| CN117524546A (en) | High-voltage busbar of new energy automobile molded by organic silicon rubber | |
| CN203300252U (en) | Single-phase copper core XLPE cable | |
| CN103077777A (en) | Rat-proof and termite-proof coaxial cable for grounding ultra-high voltage transmission line | |
| KR20130111222A (en) | Method for production of an electrical winding and electrical conductor | |
| CN107574413B (en) | Method and device for inhibiting charge injection | |
| CN101533683A (en) | High-voltage lightning protection cable | |
| CN201430003Y (en) | Special-type computer control cable used for digital transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |