Composite Ling Rod Insulators for High-Volatge Overhead Lines
Port:
Beilun, China
Production Capacity:
50.000PCS/Year
Payment Terms:
L/C, T/T, D/P, Western Union, Paypal
Zhejiang, China
Last Login Date:
Aug 24, 2021
Business Type:
Manufacturer/Factory, Trading Company
Main Products:
Lightning Arrester, Switchgear, Surge Arrester, Insulator, Fuse Cutout, Composite Insulator, Load Switch, Disconnector, Circuit Breaker, Transform
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Product Description
Company Info
Basic Info.
Model NO.
insulator
Application
Material
Porcelain
Structure
Post Insulator
Usage
Insulation
Connection Method
Certification
CCC, CE, ISO9001
Color
Red
Trademark
Dehler
Transport Package
as Your Requirement
Origin
Zhejiang, China
HS Code
8546900000
Product Description
Company Introduction:
Dehler Technology Co., Ltd. specializes in producing high and low voltage switchgear, box type substation, cable branch box, outdoor vacuum circuit breaker, isolation switch, grounding switch, load switch and low voltage components and other products.
Overview:
The rod-shaped suspension composite insulator is used for the rated voltage of the AC power system in the ordinary and polluted areas of 35~500kV, the overhead line of the frequency not exceeding 100Hz, the substation for drape and tensile strength. The ambient temperature of the insulator installation site is between -40 °C and +40 °C, and the altitude is not more than 1000 m.
Compared with traditional porcelain insulators and glass insulators, composite insulators have the following advantages:
(1) High strength and light weight. The composite insulator has a high strength-to-weight ratio, that is, a high specific strength. The high mechanical strength is derived from the excellent mechanical properties of the FRP core rod. The tensile strength of the widely used FRP rods can reach 1000 MPa or more, and the core rod density is only about 2 g/cm3, so the specific strength is high. It is about 5 to 10 times that of high quality carbon steel. At the same voltage level, the composite insulator weighs only 1/7 to 1/10 of the porcelain insulator.
(2) The wet flashing flash voltage is high. The hydrophobicity of the low-energy surface of organic composites is the main reason for the excellent wettability of composite insulators. Under severe meteorological conditions such as heavy fog, light rain, dew, dissolved snow, and dissolved ice, the surface of the composite insulator forms separated water droplets instead of continuous water film. The conductivity of the fouling layer is very low, so the leakage current is also small, and it is not easy to occur strongly. The local arc, local arc is also difficult to further develop leading to external insulation flashover. After running for a period of time, the surface area of the composite insulator is stained, and the hydrophobicity can migrate to the surface of the stain layer. The characteristics of the silicone rubber material are unique. Under the same contamination degree, the flashover voltage can reach more than twice the same leakage distance insulator.
The equivalent diameter of the common rod-shaped composite insulator is much smaller than that of the ordinary suspension porcelain insulator and the pillar insulator, which is also an important reason for its excellent stain resistance. Under adverse conditions, water repellency may be reduced or lost due to electrical, environmental and other stresses, but its equivalent diameter will not become thicker, so the flashover voltage will remain at a high level.
(3) Easy operation and maintenance. The excellent anti-fouling performance of the organic outer insulation improves the reliability of the operation of the electric power system. It does not need to be cleaned regularly like porcelain and glass insulators in the polluted area, and there is no zero-value detection problem of the ordinary suspension porcelain insulator, which greatly reduces the insulator of the dirty area. Operation and maintenance costs.
(4) It is not easy to break and prevent accidents. The composite insulator has strong impact resistance, which greatly reduces accidental damage caused during installation and transportation, and can effectively prevent damage caused by human factors such as shooting.
Dehler Technology Co., Ltd. specializes in producing high and low voltage switchgear, box type substation, cable branch box, outdoor vacuum circuit breaker, isolation switch, grounding switch, load switch and low voltage components and other products.
Overview:
The rod-shaped suspension composite insulator is used for the rated voltage of the AC power system in the ordinary and polluted areas of 35~500kV, the overhead line of the frequency not exceeding 100Hz, the substation for drape and tensile strength. The ambient temperature of the insulator installation site is between -40 °C and +40 °C, and the altitude is not more than 1000 m.
Compared with traditional porcelain insulators and glass insulators, composite insulators have the following advantages:
(1) High strength and light weight. The composite insulator has a high strength-to-weight ratio, that is, a high specific strength. The high mechanical strength is derived from the excellent mechanical properties of the FRP core rod. The tensile strength of the widely used FRP rods can reach 1000 MPa or more, and the core rod density is only about 2 g/cm3, so the specific strength is high. It is about 5 to 10 times that of high quality carbon steel. At the same voltage level, the composite insulator weighs only 1/7 to 1/10 of the porcelain insulator.
(2) The wet flashing flash voltage is high. The hydrophobicity of the low-energy surface of organic composites is the main reason for the excellent wettability of composite insulators. Under severe meteorological conditions such as heavy fog, light rain, dew, dissolved snow, and dissolved ice, the surface of the composite insulator forms separated water droplets instead of continuous water film. The conductivity of the fouling layer is very low, so the leakage current is also small, and it is not easy to occur strongly. The local arc, local arc is also difficult to further develop leading to external insulation flashover. After running for a period of time, the surface area of the composite insulator is stained, and the hydrophobicity can migrate to the surface of the stain layer. The characteristics of the silicone rubber material are unique. Under the same contamination degree, the flashover voltage can reach more than twice the same leakage distance insulator.
The equivalent diameter of the common rod-shaped composite insulator is much smaller than that of the ordinary suspension porcelain insulator and the pillar insulator, which is also an important reason for its excellent stain resistance. Under adverse conditions, water repellency may be reduced or lost due to electrical, environmental and other stresses, but its equivalent diameter will not become thicker, so the flashover voltage will remain at a high level.
(3) Easy operation and maintenance. The excellent anti-fouling performance of the organic outer insulation improves the reliability of the operation of the electric power system. It does not need to be cleaned regularly like porcelain and glass insulators in the polluted area, and there is no zero-value detection problem of the ordinary suspension porcelain insulator, which greatly reduces the insulator of the dirty area. Operation and maintenance costs.
(4) It is not easy to break and prevent accidents. The composite insulator has strong impact resistance, which greatly reduces accidental damage caused during installation and transportation, and can effectively prevent damage caused by human factors such as shooting.
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