Three Phase Pole Mount Transformers

Standard Features & Accessories

Meets or exceeds latest IEEE, NEMA, DOE Efficiency Ruling and RUS standards, as applicable
Shell-form core designs
All coils are wound with Weidmann Insolution® DPE adhesive coated larger insulation
Non-interlaced low voltages. Interlaced low voltage windings available if required
Wet-processed porcelain high-voltage bushings
Molded polymer low voltage bushings
Mild steel tank, cover and clamping ring are standard
Continuous welding of hanger bracket, lifting lugs and ground bosses
Tank rim is rolled 360° to provide superior cover retention
Tank bottom is recessed and tank edge is turned inward 90° to provide scuff protection
Tin-plated bronze terminals suitable for either copper or aluminum connection
Low-voltage grounding provisions
Low-voltage bushing ground strap on one-bushing units
Low-voltage leads permanently marked internally
Cover is grounded externally to the upper hanger bracket
Automatic pressure relief valve to safely relieve internal pressure
Mineral oil with inhibitor
Tank grounding provision
Tank grounding connector on single bushing transformers
Tank, cover and clamping ring surfaces are chemically etched in preparation for painting
Tank, cover and clamping ring are powder coated
Tank cover insulated to 10 KV
Aluminum laser-engraved nameplate
KVA marking on tank
200C cold oil level marked internally
Low-voltage circuit breaker on self-protected units
External, tank-mounted arrester on self-protected units
Internal block mounted high-voltage expulsion fuse on self-protected units

Optional Features, Accessories & Design Standards

Total or partial 409 or 304 series stainless steel designs are available
Lightning arrester mounting provisions (standard on self-protected transformers)
Lightning arrester, externally-mounted or internally-mounted under oil (externally-mounted lightning arrester standard on self-protected transformers)
High-voltage taps are available
Dual high-voltage switch with external operating handle
Dual low-voltage switch
Interlaced low-voltage windings
Wildlife protection
Magnex Interrupter Switch
Emergency overload reset handle (available only on self-protected transformers)
Tank ground connector (standard on one-bushing transformers)
Low-voltage winding ground strap (standard on one-bushing transformers except step-up / step-down units)
Custom stenciling and labeling
Bar-coding
Laser engraved stainless steel nameplate
FR3 Fluid
Rural Utilities Service (RUS) design standards
Canadian Standards Association (CSA) design standards
Other non-U.S. design standards