CN105118636A - Distribution transformer bushing - Google Patents
Distribution transformer bushing Download PDFInfo
- Publication number
- CN105118636A CN105118636A CN201510593742.4A CN201510593742A CN105118636A CN 105118636 A CN105118636 A CN 105118636A CN 201510593742 A CN201510593742 A CN 201510593742A CN 105118636 A CN105118636 A CN 105118636A
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- China
- Prior art keywords
- parts
- distribution transformer
- transformer bushing
- low
- density polyethylene
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Abstract
The invention discloses a distribution transformer bushing, and belongs to a component on a transformer. The distribution transformer bushing is prepared from, by mass, 55 parts of phenolic resin powder, 30 parts of silicon carbide, 18 parts of zinc N-ethyl-N-phenyldithiocarbamate,10 parts of calcium carbonate, 8 parts of stearic acid, 8 parts of magnesium hydrate, 6 parts of zinc borate, 4 parts of triallyl isocyanurate, 3 parts of DMAEE, 20 parts of low-density polyethylene, 1 part of antioxygen, 2 parts of compound stabilizer and 2 parts of fire retardant. According to the distribution transformer bushing, product weight is low, tensile strength and hardness are greatly improved, breakage and damage probability is lowered, the safety coefficient is increased, and the inflame-retarding effect and the insulating property are good. The distribution transformer bushing is mainly used in transformers.
Description
Technical field
The invention belongs to a kind of parts on transformer, specifically, particularly relate to a kind of sleeve of distribution transformer.
Background technology
Bushing shell for transformer service conditions in transformer is the harshest, and be subject to many-sided combined influences such as voltage, electric current, pulling force, vibrations, wind-force, air filth, once produce fault, very easily cause transformer to burn, cause the accident expansion, and loss is serious.Existing bushing shell for transformer, moisture easily flows through porcelain piece along attachment cap, and last ponding is in fuel tank cap, and seepage enters transformer, makes transformer watered and wetting in running cause insulation fault.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, provide a kind of sleeve of distribution transformer, its raw material is cheap, compatibility is reasonable, good insulation preformance, substantially increases coefficient of safety.
Described sleeve of distribution transformer, is prepared by the following compositions by mass parts: phenol-formaldehyde resin powder 55 parts, 30 parts, carborundum, N-ethyl, N-phenyl zinc dithiocarbamate 18 parts, 10 parts, calcium carbonate, stearic acid 8 parts, magnesium hydroxide 8 parts, Firebrake ZB 6 parts, cyanacrylate 4 parts, dimethylaminoethoxyethanol 3 parts, low density polyethylene (LDPE) 20 parts, 1 part, antioxidant, compound stabilizer 2 parts, fire retardant 2 parts.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention, by adding low density polyethylene (LDPE), makes the weight saving of product; By adding fire retardant, improve power supply reliability, compound stabilizer makes each component fully be mixed in its production process, significantly improves the uniformity mixing with phenol-formaldehyde resin powder and disperse;
The sleeve of distribution transformer that the present invention obtains, product weight is light, and hot strength and hardness improve greatly, and fracture and the possibility damaged reduce, and improve coefficient of safety, and flame retardant effect and insulation property better.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Sleeve of distribution transformer, is prepared by the following compositions by mass parts: phenol-formaldehyde resin powder 55 parts, 30 parts, carborundum, N-ethyl, N-phenyl zinc dithiocarbamate 18 parts, 10 parts, calcium carbonate, stearic acid 8 parts, magnesium hydroxide 8 parts, Firebrake ZB 6 parts, cyanacrylate 4 parts, dimethylaminoethoxyethanol 3 parts, low density polyethylene (LDPE) 20 parts, 1 part, antioxidant, compound stabilizer 2 parts, fire retardant 2 parts.
Above-mentioned sleeve of distribution transformer preparation method is as follows: get each raw material according to part by weight, pours in homogenizer, is first uniformly mixed 25min with the speed of 1000 revs/min under room temperature, then continues to stir 15min with the speed of 3500 revs/min at 60 DEG C; The batch mixing stirred is discharged in double screw extruder, is expressed in injection molding machine after the complete melting of batch mixing, injection mo(u)lding and get final product at 180 DEG C.
The performance test results is as follows:
| Thickness (mm) | Volume resistance (Ω cm) | Anti-flammability UL94 | Tensile strength (N/mm 2) | Hardness (A) |
| 2.2 | Be greater than 10 11 | VO level | 912 | 80.5 |
Claims (1)
1. a sleeve of distribution transformer, is characterized in that: described sleeve pipe is prepared by the following compositions by mass parts: phenol-formaldehyde resin powder 55 parts, 30 parts, carborundum, N-ethyl, N-phenyl zinc dithiocarbamate 18 parts, 10 parts, calcium carbonate, stearic acid 8 parts, magnesium hydroxide 8 parts, Firebrake ZB 6 parts, cyanacrylate 4 parts, dimethylaminoethoxyethanol 3 parts, low density polyethylene (LDPE) 20 parts, 1 part, antioxidant, compound stabilizer 2 parts, fire retardant 2 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593742.4A CN105118636A (en) | 2015-09-17 | 2015-09-17 | Distribution transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593742.4A CN105118636A (en) | 2015-09-17 | 2015-09-17 | Distribution transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105118636A true CN105118636A (en) | 2015-12-02 |
Family
ID=54666591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510593742.4A Pending CN105118636A (en) | 2015-09-17 | 2015-09-17 | Distribution transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105118636A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956541A (en) * | 1974-05-02 | 1976-05-11 | Capital Wire & Cable, Division Of U. S. Industries | Structural member of particulate material and method of making same |
| CN101511764A (en) * | 2006-09-07 | 2009-08-19 | 西巴控股有限公司 | Perfluoroalkyl substituted phenol derivatives as surface modifiers |
| CN102337005A (en) * | 2004-08-06 | 2012-02-01 | 株式会社日本触媒 | Resin composition, method of its composition, and cured formulation |
| CN103289323A (en) * | 2013-05-31 | 2013-09-11 | 国家电网公司 | Cable and application thereof to electric power system |
-
2015
- 2015-09-17 CN CN201510593742.4A patent/CN105118636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956541A (en) * | 1974-05-02 | 1976-05-11 | Capital Wire & Cable, Division Of U. S. Industries | Structural member of particulate material and method of making same |
| CN102337005A (en) * | 2004-08-06 | 2012-02-01 | 株式会社日本触媒 | Resin composition, method of its composition, and cured formulation |
| CN101511764A (en) * | 2006-09-07 | 2009-08-19 | 西巴控股有限公司 | Perfluoroalkyl substituted phenol derivatives as surface modifiers |
| CN103289323A (en) * | 2013-05-31 | 2013-09-11 | 国家电网公司 | Cable and application thereof to electric power system |
| CN104804379A (en) * | 2013-05-31 | 2015-07-29 | 国家电网公司 | Insulating material for cable |
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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: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |