Porcelain Bushings And Insulators For Transformer Makers Worldwide

More than 300 product types to IEC, DIN, BS, AS, ANSI and GB standards, produced to your drawing or sample in Pingxiang, Jiangxi

DIN 42530, DIN 42531, DIN 42539, EN 50180 and EN 50386 patterns with creepage distances matched to your site pollution class

More than 500 employees including over 50 senior and intermediate technical staff, OEM supplier to transformer makers in Europe

ANSI 55 and 57 classes, ShF and St series, ZS pin posts and U-series toughened glass discs from 40kN to 160kN

Electrical Porcelain For Power Distribution

Electrical porcelain for power distribution: transformer bushings below 40kV, pin and post insulators, wall bushings, fuse cutout bushings and toughened glass suspension discs. More than 300 product types are in production.

High Voltage Transformer Bushings

Bushings for the high voltage side of distribution and power transformers, from the 10kV class up to 36kV.

Low Voltage Transformer Bushings

Bushings for the 1kV and 3kV winding side of distribution transformers, from 250A up to 4000A.

Screw Thread Transformer Bushings

Bushings whose threaded stem takes the terminal connection directly, the arrangement used on ANSI terminal boards and smaller pole transformers.

Fuse Cutout Bushings

Porcelain bodies and complete drop-out fuse cutouts for pole-mounted transformer protection from 10kV through 33kV.

Wall Bushings And Other Insulators

Through-wall bushings, indoor bushing insulators and GOST pattern parts that fall outside the main transformer bushing families.

Pin Type Insulators

Pin and pin post insulators carrying overhead line conductors on spindles, in ANSI, ShF, St, N, ZS, ALP and AS patterns.

Post Insulators

Solid core post insulators supporting live parts in switchgear and on line supports, in GOST and threaded patterns.

Glass Suspension Insulators

Toughened glass disc insulators for transmission line suspension and tension strings, from 40kN to 160kN.

Products Across Every Voltage Class We Serve

All 75 catalogue items are listed on the products page with their published figures.

High Voltage Transformer Bushings

24kV Porcelain Transformer Bushing 150kV BIL

High Voltage Transformer Bushings

• Wet Power Frequency Withstand Voltage 60 kV
• Net Weight Per Bushing 8 kg
• Height 453 mm

DIN 20NF630A Transformer Bushing 440mm Creepage

Low Voltage Transformer Bushings

• Nominal Creepage Distance 440 mm
• Net Weight 6.1 kg
• Height 385 mm

DIN 42530 1NF250A Low Voltage Transformer Bushing

Low Voltage Transformer Bushings

• Creepage Distance 50 mm
• Net Weight 0.26 kg

CB250 Outdoor Transformer Porcelain Bushing

High Voltage Transformer Bushings

10kV 250A Screw Thread Transformer Bushing For 10kVA To 333kVA

Screw Thread Transformer Bushings

• Minimum Creepage Distance 270 mm
• Net Weight 2.66 kg
• Height 332 mm

ANSI 15kV Transformer Porcelain Bushing

Fuse Cutout Bushings

• Rated Transformer Bushing 15 kV

Outdoor Pole Mounted Drop-Out Fuse Cutout RW11-10

Fuse Cutout Bushings

• Impulse Voltage BIL On Both Ratings 110 kV
• Power Frequency Withstand Voltage 42 kV

15kV To 33kV Fuse Cut Out Bushing Insulator

Wall Bushings And Other Insulators

Russia 10kV Wall Bushing Ceramic Insulator IOR-10-3.75 II UKhL2

Wall Bushings And Other Insulators

• Voltage 10 kV
• Current 630 A
• Lightning Impulse Test Voltage 80 kV

IP-10-100 Indoor Bushing Insulator 10kV Russia Standard

Pin Type Insulators

• Minimum Creepage Distance 210 mm
• Bearing Capacity 12.5 kN
• Weight 5.3 kg

ShF-10MO Pin Type Ceramic Insulator

Pin Type Insulators

ANSI 57-14 Line Post Porcelain Insulator 1015mm Creepage

• Creepage Distance 1015 mm
• Dry Arcing Distance 368 mm
• Cantilever Strength 12.5 kN

Built For Four Kinds Of Buyer

Distribution and power transformer manufacturers, switchgear builders, overhead line contractors and utility maintenance departments. We have produced on an OEM basis for Barberi, Comem and Cedaspe in Italy and ABB in Turkey.

Distribution Transformer Manufacturers

Terminal boards designed around one bushing pattern that the original supplier has discontinued

Power Utilities And Substations

A line section or substation that keeps flashing over after every wet season

Overhead Line Contractors

Replacement insulators whose groove width or spindle bore does not match

Switchgear Manufacturers

GOST material clauses that general suppliers will not commit to

Most Insulator Problems Are Not Dimensional

Buyers of electrical porcelain rarely have a dimensional problem alone. They have a drawing in a standard their local supplier does not carry, a site pollution class that keeps flashing over the insulator they were sold, or a terminal board that will not accept anything but the original pattern. We hold IEC, DIN, BS, AS, ANSI, GB and GOST patterns in production and make to drawing or sample when the pattern is not catalogued.

How We Work With You

Manufacturing To Your Drawing Or Sample

Most enquiries that reach us are not for a catalogue item. They are for a pattern that a local supplier has stopped making, a terminal board that noth

Standards Compliance Across IEC DIN EN ANSI AS GB And GOST

A buyer in Egypt works from EN, one in Australia from AS, one in Kazakhstan from GOST and one in Texas from ANSI. The insulator does the same job in a

Selecting Creepage For The Pollution At Your Site

Almost every repeat flashover we are asked about comes back to the same thing: creepage was chosen from the system voltage and nothing else. Voltage t

Export Supply Packing And Payment

Porcelain is heavy, brittle and usually needed on a date that was fixed before the order was placed. The commercial side of an insulator order matters

An 80000 Square Metre Electrical Porcelain Works

An 80000 square metre plant operating since 1978 with more than 500 employees, over 50 of them senior and intermediate technical staff, and total assets above 30 million yuan. Products are in service in more than 20 countries. Quality, environmental and occupational health management systems are certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018.

Formed pin insulator bodies racked on trolleys in the production hall, waiting to move to the next stage.

Glazed bushing shells on drying racks alongside brown fired bodies and stacks of shed components.

Finished pin post insulators palletised on the shop floor, marked and ready for inspection.

Products In Service In More Than 20 Countries

• United States
• Thailand
• Uzbekistan
• Singapore
• Vietnam
• Cambodia
• Sri Lanka
• Australia
• Nigeria
• Indonesia
• Kenya
• Brazil
• South Africa
• Turkey
• Egypt

Deliveries And Factory Assessments

Power Utilities And Substations

Porcelain Transformer Bushings Supplied To Thailand And Uzbekistan

Distribution Transformer Manufacturers

ABB Turkey Visits The Risheng Plant In Pingxiang

Power Utilities And Substations

ECMEI Egypt Visits The Risheng Plant In Pingxiang

Selection Guides Written For Engineers

Buying Guide

Transformer Bushing Selection A Guide For Engineers

Product Guide

What Is A High Voltage Transformer Insulator

Industry Article

The Five Jobs An Insulator Does Inside A High Voltage Transformer

Questions Buyers Ask Before Ordering

Send Us The Drawing And We Will Quote It

Enquiries are answered within 24 hours. If you do not have a finished drawing, send a sample or photographs with the key dimensions.