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Help Center750kv Composite High Tension Insulators , EHV Overhead Line Insulators
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Certification:ISO, 750kV Type test reports , 750kV Design test reports
750kv Composite High Tension Insulators , EHV Overhead Line Insulators
Specifications:
Dimensions and Characteristics of 750kV(765kV) composite high tension insulators
| Figure. No | Model | Rated Voltage | Specified Mechanical Load | Coupling Size | Section Length |
Insulating length |
Minimum Creepage | Full-Wave Impulse Withstand Voltage (Peak) |
1 Min Wet Power Frequency Withstand Voltage |
Weight (for Reference) |
|
kV |
kN |
H mm |
h mm |
L mm |
≥ kV |
≥ kV |
kg |
|||
| 1.3 | FXBW-750/160 | 750 | 160 | 20 | 7150±50 | 6680 | 23800 | 2700 | 1120 | 42.7 |
| 1.3 | FXBW-750/180 | 750 | 180 | 20 | 7150±50 | 6680 | 23800 | 2700 | 1120 | 42.7 |
| 1.3 | FXBW-750/210 | 750 | 210 | 20 | 7150±50 | 6680 | 23800 | 2700 | 1120 | 42.7 |
| 1.3 | FXBW-750/240 | 750 | 240 | 20 | 7150±50 | 6680 | 23800 | 2700 | 1120 | 42.7 |
| 1.3 | FXBW-750/300 | 750 | 300 | 24 | 7150±50 | 6600 | 23500 | 2700 | 1120 | 43.7 |
| 1.3 | FXBW-750/400 | 750 | 400 | 28 | 7150±50 | 6565 | 23500 | 2700 | 1120 | 56.7 |
Description:
1, 750kV(765kV) composite high tension insulators are widely used in 750kV(765kV) overhead transmission lines and substations.
2, Dead end fittings are up to the requirements from the clients, usually we use ball, socket, tongue, clevis for suspension insulators with forged steel or cast steel. The dimensions and coupling size can be exactly according to the specification requirements from the utilities.
3, The silicon rubber color of the insulators are also up to the requirements from the clients and all the silicon rubber materials past 5000 hours aging test silicon content test and hydrophobicity test.
4, ECR core rods are used in all the insulators, so we can guarantee a very good mechanical strength and anti-acid pollution performance for the insulators.
5, All our insulators were type tested and design tested in accordance with IEC61109, maximum RIV is 100µV when tested at 1MHz and10% over nominal line ground voltage for indicated system voltage.
6, All the 750kV(765kV) composite high tension insulators are designed with two corona rings
Applications:
1, 750kV(765kV) EHV overhead transmission power lines.
2, 750kV(765kV) EHV substations.
Competitive Advantage:
| The advantages of polymer/composite insulators over ceramic/porcelain insulators | ||
| General comparison | ||
| Factor | Ceramic/porcelain insulators | Polymer/composite insulators |
| Weight |
Heavy weight- For example 400kV - about 140kgs |
90% lighter than them but with same mechanical strength 400kV -- Around 15kgs |
| Fragility | Highly fragility to shock and vibration | No fragility to shock and vibration |
| Packing and transportation | Risky and very costly | Easy and economical |
| Installation | Risky expensive and more labor required | Very easy and economical |
| Handling | Difficult | Easy |
| Maintenance cost | Very expensive | Low |
| Vandalism | More susceptible | Highly resistant |
| Breakages and secondary damage | Highly fragile- 10-15% breakages are reported during transportation storage and inst
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Business Type
Trading Company
Total Employees
101 - 200 People
Main Markets
North America, South America, Eastern Europe
Location
Shaoxing, Zhejiang, China
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