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China Kayi Industrial Co., Ltd.
The most reliable 10kV - 1100kV composite / polymer insulator supplier from China
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160kN-530kN high tension insualtors polymer insulator composite insulator

China Kayi Industrial Co., Ltd.
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160kN-530kN high tension insualtors polymer insulator composite insulator

Brand Name : KAYI
Model Number : 160kN-530kN High tension insulator
Certification : KEMA STRI SGS TYPE TEST REPORTS ETC
Place of Origin : CHINA
MOQ : 10 PIECE
Price : USD 10-900 PER PIECE
Payment Terms : T/T, L/C
Supply Ability : 90000 STANDARD PIECES PER MONTH
Delivery Time : START FROM 30 DAYS
Packaging Details : CARTONS PAPER TUBES WOODEN BOXES ETC
Mechanical load range : 160kN-530kN
Rate voltage : 35kV-1100kV
Color : Gray red or any color
Material : Polymer insulator
Core : ECR
Fitting : Forged fittings
Application : High voltage
Standards : IEC 61109
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Polymer insulator

1 The silicone rubber sheds adopt overall injection pressure process, so solve the reliability of composite insulators problem of the interface electrical breakdown. The core and the metal fittings using the most advanced technology, high strength, good looks, small size, light weight, corrosion-resistant galvanized fittings, the product structure, reliable, does not damage the mandrel, give full play to its mechanical strength.


2 Excellent electrical properties, high mechanical strength

3 Good stain resistance,and does not require cleaning,re-contamination can run to safety.

4 Small volume, light weight. The structure is dexterous,convient to transport and installation.

5 Silicone rubber sheds with good hydrophobic properties, the overall structure ensures that the insulation does not get wet, no preventive insulation monitoring tests, no cleaning, reducing routine maintenance.

6 Good sealing performance, good resistance to corrosion, with good resistance to aging, corrosion resistance, low temperature resistance, suitable for -40 °C ~ -50 °C areas.


7 Has a strong impact resistance and shock resistance, good anti-fragility and creep resistance, unbreakable, anti-bend, high torsional strength ,can withstand internal pressure, explosion-proof is strong.


Specifications: Take our 800kV Insulators as an example:

Dimensions and Characteristics of ±800kV composite high tension insulators

Figure. NoModelRated VoltageSpecified Mechanical LoadSection Length

Insulating length

Minimum CreepageFull-Wave Impulse Withstand Voltage (Peak)

Wet Switching Impulse Withstand Voltage

(Peak)

1 Min Wet DC Withstand Voltage

Weight (for Reference)

kV


kN

H

mm

h

mm

L

mm

kV

kV

kV


kg

1.2FXBZ-±800/210±8002108700831831100+3600+1950+90083.9
1.2FXBZ-±800/300±8003008700826230100+3600+1950+90086.3
1.2FXBZ-±800/400±8004008700825530100+3600+1950+90087.0
1.2FXBZ-±800/530±8005308700813929800+3600+1950+90086.4
1.2FXBZS-±800/210±8002102*46182*42362*15800+3600+1950+90088.4
1.2FXBZS-±800/300±8003002*46182*41802*14800+3600+1950+90092.0
1.2FXBZS-±800/400±8004002*46182*41732*14800+3600+1950+90093.4
1.2FXBZS-±800/530±8005302*46182*40572*14600+3600+1950+90093.3

Description:

1, ±800kV composite high tension insulators are widely used in ±800kV 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 tension insulators with forged 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 ±800kV composite high tension insulators are with two corona rings


Applications:

1, ±800kV EHV DC overhead transmission power lines.

2, ±800kV EHV DC substations


Competitive Advantage:

The advantages of polymer/composite insulators over ceramic/porcelain insulators
General comparison
FactorCeramic/porcelain insulatorsPolymer/composite insulators
Weight

Heavy weight- For example

400kV - about 140kgs

90% lighter than them but with same mechanical strength

400kV -- Around 15kgs

FragilityHighly fragility to shock and vibrationNo fragility to shock and vibration
Packing and transportationRisky and very costlyEasy and economical
InstallationRisky expensive and more labor requiredVery easy and economical
HandlingDifficultEasy
Maintenance costVery expensiveLow
VandalismMore susceptibleHighly resistant
Breakages and secondary damageHighly fragile- 10-15% breakages are reported during transportation storage and installationFlexible and therefore highly resistant to breakages
Technical comparison
Mechanical failureReduction in mechanical strength and separation during to pings getting erodedJust with single piece, so no such kind of problem
Resistance to flashover and puncturesLowHigh
Anti tracking and erosion resistanceVery low- poor tracking resistanceExcellent tracking resistance avoids erosion or tracking of the housing material
Dielectric strengthLower than polymerExcellent insulation performance
Contamination and pollutionHighly effectedNot effected and has much longer life
HydrophobicityNo hydrophobicity, ceramic surface forms water films on the surface making easy path leading to more flashoverVery excellent hydrophobicity
Self cleaning qualityNo, dirty sand salt snow etc are easily attractedYes, due to hydrophobicity recovery characteristics
Tension strengthGoodBetter during crimping technology
MaintenanceNeeds maintenance like cleaning washing and greasingNot required at all
SafetyAre easy to explosion and breakages due to high fragile properties and stone throwing or gun shootingProvide very high level of safety superior flexibility and strength. not easy to break due to stone throwing or gun shooting.


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