Name: DIN 24kV 630A Transformer Bushing CD525
Brand: Pingxiang Risheng Electric Porcelain Co., Ltd.

High Voltage Transformer Bushings production

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DIN 24kV 630A Transformer Bushing CD525

Product Overview

The long-creepage member of the 24 kV 630 A DIN family. Its 525 mm creepage distance is the reason to choose it: coastal salt, cement dust and industrial fallout build a conductive film on the glaze, and the extra creepage buys the surface more time between washes. Mechanically it is close to the 440 mm version at 385 mm tall and 160 mm across, so the terminal board does not need reworking.

Why Buyers Choose This Part

525 mm creepage for salt-laden and industrially polluted sites
630 A continuous rating at 24 kV in a 6.8 kg body
125 kV BIL with 50 kV wet power frequency withstand
160 mm diameter keeps the existing DIN terminal cut-out usable

Where It Is Used

Coastal substations where salt fog settles on the bushing surface
Transformers near cement, steel and chemical plants with airborne fallout
Desert installations where wind-blown dust bridges short creepage paths
Utilities extending wash intervals on hard-to-reach pole transformers

Who It Suits

Transformer builders quoting projects with a heavy pollution class
Utilities in coastal and industrial regions
EPC contractors specifying long-creepage terminal parts

What Goes Wrong Without The Right Part

Repeat flashovers on standard-creepage bushings at polluted sites
Washing programmes that cost more than the bushing itself over a few years
Specification changes that would otherwise force a new terminal board
Finding 630 A capacity and long creepage in the same DIN envelope

How It Is Built

Rated 24 kV at 630 A
525 mm creepage distance
125 kV BIL, 50 kV wet power frequency withstand
385 mm height, 160 mm diameter
6.8 kg net 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.

Creepage Distance	525 mm
Net Weight	6.8 kg
Height	385 mm
Diameter	160 mm
Rated Voltage	24 kV
Rated Current	630 A
BIL	125 kV
Power Frequency Withstand Voltage Wet	50 kV

Materials

Electrical porcelain shell
Copper or aluminium alloy conductor

Process

Shell forming
Glazing
High temperature firing
Fitting assembly
Routine test

Testing

Creepage measured against the 525 mm drawing figure
50 kV wet power frequency withstand test
Glaze inspection for pinholes and crazing

Certification

ISO 9001 quality management system

Customisation Options

Other creepage distances produced to drawing
Flange and stem detail adapted to your terminal board
OEM and ODM marking accepted

How It Compares

DIN 20NF630A at 440 mm creepage	Same current rating, 85 mm more creepage. The CD525 is the one to specify when the site has salt or industrial fallout.
Silicone composite bushing	Porcelain does not lose hydrophobicity with age the way a polymer housing can, and it is repairable to a known dimension after a strike.

Before You Order And After It Arrives

Match the pollution class of the site to the creepage figure before ordering
Inspect the glaze after transport, a chipped shed shortens the creepage path
Wash with clean water only, no solvents on the glaze
Check the flange gasket at every overhaul to keep the tank seal sound