Transformer Board

TRANSFORMER BOARD

SGB-SMIT CALIDUS is a leading supplier of transformer board, moulded and machined parts, sets and kits and electrical insulation paper to Southern African markets all used for transformer applications. Also previously known as Whiteleys South Africa is in a long term partnership with Weidmann Electrical who is amongst the top suppliers of insulation to large transformer companies in North America and Europe. With the technical know-how from Weidmann; we have developed and introduced a range of insulation products for small, medium, large distribution and power transformer manufacturer companies.

Insulation components, made from cellulose based press boards/transformer boards meet the high requirements for the use in electrical apparatus. Our products are mainly used in distribution and power transformers up to 230 kV Class, of all sizes and sophistication and are certified to conform to the latest IEC standards. SGB-SMIT CALIDUS’s quality systems are certified under ISO 9001.

SGB-SMIT CALIDUS can also supply entire insulation kits for power and distribution transformers as per the specific drawings provided by the customer. Pressboard components are increasingly delivered in the form of pre-assembled winding kits. The kits are delivered to the winding machine complete with all necessary components for assembly of a winding.

This cost-effective system saves time and labor and solves the problem of limited floor space. More and more Original Equipment Manufacturers (OEM’s) are taking advantage of this opportunity by switching from ordering individual components to pre-assembled kits.

These very special items are produced by forming pressboard to complex shapes and profiles, and represent the state-of-the-art in customised insulation products. SGB-SMIT CALIDUS is one of the very few companies in the world with this capability. Moulded insulation products offered includes angle rings, cap rings, edge and disc insulation angle and cap rings as well as special moulded components for industrial transformers. At the top end of this product line are our irregular shaped insulation products in the form of snouts moulded from wet pulp sheets.

SGB-SMIT CALIDUS also offers a full range of value added machined parts from pressboard and calendered board such as runners, wedges of trapezoidal, rectangular and other profiles, as well as edge rounded spacer strips of different sizes to customer specifications and milled spacers with exceptionally low thickness tolerances.

SGB-SMIT CALIDUS is able to offer Crepe paper in both calendered and un-calendered varieties. Crepe paper is available in rollform, tapes and tubes are also offered for use as coil cover and end turn insulation.

All products i.e. Fabricated Products, Moulded Products, Crepe Paper Products, are available in single Insulation Kits suitable for one type of transformer as per a customers’ specifications.
Customers can issue one single order for a Kit for one transformer consisting of various drawings and quantities of the fabricated products manufactured as per individual specifications and quantities required.
Kits can be made for all range of transformers i.e. from 100 kVA distribution transformers to 220 MVA EHV transformers.
SGB-SMIT CALIDUS specialises in manufacturing insulation kits so that the customer receives the total insulation for a single unit in a kit form. This reduces assembly time, inventory, cost of procurement as well as better accountability.