1 1 spec insulator
Post on 15-Oct-2015
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*(Insulator)
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2 : (Self Restoring) (Non-Self Restoring) , Vacuum,
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(Insulators) 2.
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3
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(Dry Arcing Distance)(Creepage Distance)
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CREEPAGEDISTANCE. 4
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*Ex. 22 kV = 484 mm ( 24x16 )
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1. : 1 .2. : 1 .3. : 1 . .
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*
Pin type insulatorLine post type insulatorPin post type insulator Suspension type insulatorInsulators .
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Pin Type Insulator22 kV systemCreepage distance : 432 mmDry flashover : 110 kVWet flashover : 70 kVImpulse flashover ,positive : 175 kVImpulse flashover ,negative : 225 kV33 kV systemCreepage distance : 553 mmDry flashover : 125 kVWet flashover : 80 kVImpulse flashover ,positive : 200 kVImpulse flashover ,negative : 265 kVStandard : TIS 279Class 56-2Class 56-3
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Pin Type InsulatorStandard : TIS 279Class 56-2Class 56-3 15 (Puncture) .
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Line Post Type Insulator22 kV systemCreepage distance : 559 mmDry flashover : 110 kVWet flashover : 85 kVImpulse flashover ,positive : 180 kVImpulse flashover ,negative : 205 kVStandard : TIS 1077Class 57-2Class 57-333 kV systemCreepage distance 737 mmDry flashover : 125 kVWet flashover : 100 kVImpulse flashover ,positive : 210 kVImpulse flashover ,negative : 260 kVHigh pollution 22 kV system
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Line Post Type InsulatorStandard : TIS 1077Class 57-2Class 57-3 15 (Puncture) Creepage Impulse Flashover Pin-type
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Line Post Type InsulatorHigh pollution 33 kV systemCreepage distance : 1,015 mmDry flashover : 150 kVWet flashover : 125 kVImpulse flashover , positive : 255 kVImpulse flashover , negative : 340 kVStandard : TIS 1077Class 57-4
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22 kV systemCreepage distance : 534 mmDry flashover : 110 kVWet flashover : 80 kVImpulse flashover ,positive : 180 kVImpulse flashover ,negative : 205 kV33 kV systemCreepage distance : 699 mmDry flashover : 120 kVWet flashover : 85 kVImpulse flashover ,positive : 210 kVImpulse flashover ,negative : 230 kVHigh pollution 22 kV systemStandard : TIS 1251Class 56/57-2Class 56/57-3Pin Post Type Insulator
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Standard : TIS 1251Class 56/57-2Class 56/57-3Pin Post Type Insulator 15 (Puncture) Creepage Impulse Flashover Pin-type Protected Creepage ()
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Pin Post Type InsulatorHigh pollution 33 kV systemCreepage distance : 953 mmDry flashover : 140 kVWet flashover : 95 kVImpulse flashover , positive : 255 kVImpulse flashover , negative : 300 kVStandard : TIS 1251Class 56/57-4
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Suspension Type Insulator ( 22 kV)22 kV systemCreepage distance : 534 mmDry flashover : 175 kVWet flashover : 80 kVImpulse flashover ,positive : 300 kVImpulse flashover ,negative : 275 kVHigh pollution 22 kVCreepage distance : 712 mmDry flashover : 225 kVWet flashover : 105 kVImpulse flashover ,positive : 385 kVImpulse flashover ,negative : 355 kVStandard : TIS 563 Class 52-13 EA/set4 EA/set
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33 kV systemCreepage distance : 584 mmDry flashover : 156 kVWet flashover : 90 kVImpulse flashover ,positive : 255 kVImpulse flashover ,negative : 255 kVHigh pollution 33 kVCreepage distance : 876 mmDry flashover : 215 kVWet flashover : 130 kVImpulse flashover ,positive : 355 kVImpulse flashover ,negative : 345 kVStandard : TIS 563Class 52-43 EA/set4 EA/setSuspension Type Insulator ( 33 kV)
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Suspension Type Insulator (Dead-end) 15 (Puncture)
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*SR Composite InsulatorPorcelainComposite
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*
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* Hydrophobic ( )
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* HydrophobicBefore Test4
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* SRPorcelain and sand >> water soaks inPorcelain and salt>> water soaks inSilicone and sand>> 24 hours later the water repels offSilicone and sand>> 24 hours later the water repels off
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*Power Arc Resistance (50kA, 1 second)
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* SR (Very heavy pollution)
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* Polymer SREPDM ()
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*
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*
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*
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*
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*
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* (Flash over) Interruption Voltage sag/dip Flash over
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* . 02-590-5585E-mail : wittaya.ch@pea.mail.go.th
//-5585*//-5585
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