Oil Impregnated Paper (OIP) Bushing

OTAA The OTAA is the next generation of Oil Impregnated Paper condenser bushing manufactured to IEEE C57.19.01 from 25 kV to 500 kV system voltages. Trench Oil Impregnated Paper (OIP) transformer and Reactor bushings have a long history first with IEC application then in mid 1990’s with IEEE applications. The fine capacitance graded core design uses aluminum grading foils to control the electrical field both radially and axially. The core design has been proven over time and number of bushings installed in Transformer and Reactors with IEC and IEEE applications. The new OTAA has been upgraded...

The introduction of the IEEE line of bushings brought several innovations to the IEEE market: • Maintenance free top terminal with multi-spring contact • Porcelain cemented into the flange for increased cantilever withstand capability • Oil side epoxy insulator providing high impact resistance and reduced size. • Imbedded end shield in the epoxy insulator eliminates external shielding in draw lead application and provides greater internal clearances. • Horizontal transportation and storage. • Air side insulator is available with the standard porcelain or silicone rubber. • Draw lead bushing suitable...

Electrical Characteristics of OTAA Bushings Nominal system voltage Draw Lead Split Conductor Draw Lead Split Conductor Draw Lead Split Conductor Draw Lead Split Conductor Draw Lead Split Conductor Draw Lead Split Conductor Draw Lead Split Conductor Split Conductor Draw Lead Split Conductor Draw Lead Max Rated Line-Ground Continuous Voltage Current Draw Lead Split Conductor

Standard IEEE-C57.19.01 Creepage distance 54 mm/kV L-G (* 54 mm/kV code “4” and 44 mm/kV code = “3”) Lower End CT Pocket (distance from flange mounting to min oil level) Top Terminal Usable Thread (min) Altitude 3300ft Porcelain Gray Gasket Space Terminal Details Flange Bolting No. of Bolts Hole size

Trench Bushing Factories & Sales Office* Trench France SAS 16, Rue du Général Cassagnou B.P. 70 F-68 302 St. Louis, Cedex France Phone : +33-3-89-70-2323 Fax : +33-3-89-70-2359 Trench High Voltage Products Ltd., Shenyang No. 2 Jingshenxisan Street Daoyi Economic Development Zone Shenbei New District 110136 Shenyang, P. R. China Phone: +86-24-8892 3722/27 Fax: +86-24-8973 7200 Trench Limited Bushing Division* 1865 Clements Road Pickering, Ontario Canada L1W 3R8 Phone: +1-416-751-8570 Fax: +1-416-751-6952 Other Trench Factories Trench Limited Coil Products Division 71 Maybrook Drive Scarborough,...