EN 36/250/P3 Transformer Bushing Insulator 36kV

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Product Overview

An EN pattern transformer bushing in the 36/250/P3 designation, rated 36 kV. It stands 600 mm tall and 155 mm across with 935 mm of creepage against a 465 mm arcing distance, weighing 6.8 kg. The creepage figure is the longest in this bushing range, which is what puts it on 36 kV transformers in heavily polluted air.

Why Buyers Choose This Part

• 935 mm creepage, the longest figure in the bushing range
• 465 mm arcing distance at the 36 kV class
• P3 profile designation for the heaviest pollution class
• 6.8 kg on a 600 mm body, manageable for a 36 kV part

Where It Is Used

• 36 kV transformers in coastal or heavily industrial locations
• Substation transformers where wash access is difficult
• Networks upgrading insulation class after repeated flashover
• Projects specified against the EN pollution profile designations

Who It Suits

• Transformer manufacturers building for polluted environments
• Utilities operating 36 kV networks in coastal or industrial areas
• EPC contractors specifying by pollution class

What Goes Wrong Without The Right Part

• Repeated pollution flashover at 36 kV on standard creepage bushings
• Wash programmes that cannot be scheduled often enough
• Creepage shortfalls that only appear after a season in service
• Terminal designs that need long creepage without excessive height

How It Is Built

• EN 36/250/P3 designation
• Rated voltage 36 kV
• 600 mm height
• 155 mm diameter
• 935 mm creepage distance
• 465 mm arcing distance
• 6.8 kg weight

Published Figures For This Product

Every value below comes from the manufacturer data for this item. Figures not listed are confirmed against the drawing before an order is placed.

Voltage	36 kV
Height	600 mm
Diameter	155 mm
Creepage Distance	935 mm
Arcing Distance	465 mm
Weight	6.8 kg

Materials

• Electrical porcelain shell
• Copper or aluminium alloy conductor

Process

• Forming
• Glazing
• Firing
• Conductor assembly
• Routine electrical test

Testing

• Creepage verified against the 935 mm figure
• Arcing distance checked at 465 mm
• Dimensional check on the 600 mm by 155 mm envelope

Certification

• EN pattern bushing
• ISO 9001 quality management system

Customisation Options

• Other creepage profiles in the EN range
• Special lengths and connection types to specification
• Produced to drawing or sample

How It Compares

AS 24/315	The AS part gives 450 mm creepage at 24 kV on a 505 mm body. The EN 36/250/P3 more than doubles the creepage for the 36 kV class.
DIN 30NF250 at 36 kV	Same voltage class on the DIN pattern. The P3 designation here identifies the long creepage pollution profile specifically.

Before You Order And After It Arrives

• Match the P profile designation to the site pollution class
• Allow 600 mm of clearance above the transformer cover
• Check the 155 mm diameter against the terminal board opening
• Wash with clean water only when deposits build on the long creepage surface

EN 36/250/P3 Transformer Bushing Insulator 36kV Questions

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Related Cases Guides And Applications

How To Choose Creepage Distance For A Polluted Site

Transformer Bushing Selection A Guide For Engineers

Distribution Transformer Manufacturers

Power Utilities And Substations

Manufacturing To Your Drawing Or Sample

Selecting Creepage For The Pollution At Your Site

Quote For EN 36/250/P3 Transformer Bushing Insulator 36kV

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