DIN 42530 1kV 3150A Transformer Bushing DT 1/3150

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Product Overview

The largest bushing in the DIN 42530 1 kV table, catalogued as DT 1/3150 at 3150 A. It needs a 90 mm tank hole and uses an M48 stem connection at 75 mm creepage. Its job on the transformer is threefold: it supports and fixes the winding so its position stays stable, it isolates the winding from the tank and other metal parts to prevent leakage current, and it resists moisture and fouling.

• DIN 42530

Why Buyers Choose This Part

• 3150 A rating, the top of the DIN 42530 1 kV table
• M48 stem connection sized for heavy busbar terminations
• 90 mm tank hole published so the terminal board can be checked
• Moisture-proof and anti-fouling surface behaviour

Where It Is Used

• High output low voltage terminals on power transformers
• Terminal boards designed around a 90 mm tank hole
• Heavy busbar connections needing an M48 stem
• Transformer builds standardising on DIN 42530

Who It Suits

• Power and distribution transformer manufacturers
• Design engineers laying out high current LV terminals
• Distributors stocking the full DIN 42530 range

What Goes Wrong Without The Right Part

• Terminal heating at very high LV output currents
• Tank holes cut before the bushing size was confirmed
• Winding leads that move because the bushing does not fix them
• Leakage current between the winding and the tank

How It Is Built

• DIN 42530 DT 1/3150 pattern
• 1 kV at 3150 A
• 90 mm tank hole size
• 75 mm creepage distance
• M48 stem connection
• Supports and fixes the transformer winding
• Isolates the winding from the tank and other metal parts
• Moisture-proof and anti-fouling

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.

Tank Hole Size	90 mm
Creepage Distance	75 mm

Materials

• Electrical porcelain
• Copper fittings

Process

• Forming
• Glazing
• Firing
• Stem machining and assembly
• Routine electrical test

Testing

• Tank hole and M48 stem dimensional check
• Creepage verified at 75 mm
• Conductor path inspection at the 3150 A rating

Certification

• Manufactured to DIN 42530
• ISO 9001 quality management system

Customisation Options

• Special lengths or connection types to specification
• Other ratings from 250 A upward
• Bushings also made to DIN 42539, 42531, 52432, 42533 and 42534

How It Compares

DT 1/2000	The 2000 A version uses a 70 mm tank hole and an M42 stem at the same 75 mm creepage. Every step in current changes the tank hole and stem.
EN 50386 1/4000 A	The EN range extends past 3150 A to 4000 A with 85 mm creepage. Use EN where the specification calls for it and the current is higher.

Before You Order And After It Arrives

• Confirm the tank hole is 90 mm before ordering
• Size the busbar termination for the M48 stem
• Keep the winding lead fixed as the bushing is designed to do
• Check the seal at every transformer service

DIN 42530 1kV 3150A Transformer Bushing DT 1/3150 Questions

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• Tank Hole Size 45 mm
• BIL 40 kV
• Creepage Distance 120 mm

DIN 42530 1kV 2000A Transformer Bushing

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• Creepage Distance At This Rating 75 mm
• Weight 1.29 kg
• Creepage Distance 50 mm

DIN 42539 3kV 1000A Transformer Bushing

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• Creepage Distance 125 mm

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• Creepage Distance 75 mm
• Weight 1.29 kg

Related Cases Guides And Applications

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 DIN 42530 1kV 3150A Transformer Bushing DT 1/3150

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