420kV Electrical Power Transformer Disk Insulators
1. Application
The insulating articles are for insulation support or isolation, matching high voltage switchgears or medium voltage switchgears. Dimensions, technical parameters and service environments can be custom specified.
2. Main Features
1).With the best insulating ability
2).Possessing high electrical and mechanical strength
3).Having wide temperature withstanding and good sealing
4).Be supplied to many internal or oversea companies
5).Epoxy resin cast in totally vacuum process or using APG and molding DMC (SMC) process
3. Insulating Articles Categories
Our insulating articles are having the following categories:
1) Insulators: Our insulators include post type and disk type, offering single phase and three phases. And for the disk insulators, we have many variants, Such as the ones with metal flange or without metal flange, open or close in the epoxy resin, open or close in the insert and so on.
2) Insulating rods
3) Insulating tubes
4) Contact covers
5) Bushings and other insulation articles
4. Performance requirements
1) Rated voltage: up to 1000kV
2) Material: epoxy resin or custom specified
3) Power frequency withstand: As per the standard IEC60137:2003 or GB/T 4109-2008
4) Rated lightning impulse, switching impulse and chopped lightning impulse withstand voltage: perform the standard IEC60137:2003 or GB/T 4109-2008
5) Measurement of partial discharge: As per the standard IEC60137:2003 or GB/T 4109-2008
6) Mechanical strength: As per the standard IEC60137:2003 or GB/T 4109-2008 or custom specified
7) Sealed performance:
Be able to support the rated pressure of SF6
Gas leakage: not exceed 0.1% annually
5.Description and advantages of the insulator
5.1 Insulation material: Epoxy resin
5.2 110-170kV, 3 phase
High insulation level
Partial discharge: ≤3pC
High strength for pressure and torsion
Excellent in leakage
5.3 ISO 9001:2008 and IEC 60137Ed.6.0
5.4 Payment: L/C or T/T
6 Technical data for those insulators:
6.1 Insulation level: 126/230/550kV (126kV)
145/275/650kV (145kV)
170/325/750kV (170kV)
10.2 Rated voltage: 110-170kV,
7 Explaination:
7.1 We can specially supply fittings needed according to the requirements of customers.
7.2 Our insulator products are high quality with favourable price,meet the customers'requires.We are producing them in accordance with IEC standards.Surely,we also can do insulator according to our customers's drawings.if you are interested in our products,please don't hesitate to contact us.
Notes: Detailed models and drawings for insulators would be provided under request.
Dimensions of Insulating Dish
Symbols of Drawing | Dimensions of Different Type of Products (mm) | |||||||
| 35-66kV | 110-150kV | 220-330kV | 380kV | 500kV | 750kV | 1000kV | |
D1 | 58 | 58 | 58 | 81 | 98 | 130 | 180 | 235 |
D2 | 187 | 230 | 283 | 314.5 | 479 | 675 | 838 | 1105 |
H1 | 26 | 30 | 34.5 | 30 | 32 | 60 | 100 | 125 |
H2 | 30 | 50 | 50 | 60 | 100 | 150 | 235 | 315 |
1. Matching different sizes switchgears for voltage metering and protection or for control-circuit supply.
2. Power plant and power station.
3. All kinds of industrial area, such as factories, coal mine, subways and so on.
4. They also can be used in communities.
5. Especially suitable for medium voltage witchgears. image
Name: 420kV Electrical Power Transformer Disk Insulators | |
For the low voltage products: | 5 -10 days |
For the medium voltage products: | 10 -15 days |
For the high voltage products: | 20 -30 days |
Payment: | T/T or L/C |
Port: | Guangzhou |
Packing: | Wooden case |
We have a team who is in charge of packing.
The team consists of our skilful carpenters and experienced packing designers.
These enable our packing reasonable, safe and reliable.
• Your inquiry related to our product & price will be replied within 24 hours.
• Well-trained & experienced staff are to answer all your inquiries in English of course.
• Working time: 8:00am ~17:45pm, Monday to Saturday.(UTC+8)
• Provide perfect after-sale service, if you got any question, please contact with us and we will solve
your problem immediately.
• We have our own transportation department, goods can be delivered on time whenever they are ready.
• Your business relationship with us will be confidential to any third party.
420kV Electrical Power Transformer Disk Insulators