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Since 1949, Central Moloney, Inc. has enjoyed a reputation for outstanding design and manufacture of Single-Phase Overhead Distribution Transformers. We offer a complete line of single-phase overhead distribution transformers including conventional, completely self-protected and step-up / step-down and auto-type designs that meets all applicable ANSI, NEMA and RUS standards.
Standard Features
- Meets or exceeds latest applicable ANSI, NEMA and RUS standards as applicable
- Shell-form core designs
- All coils are wound with adhesive coated Kraft layer insulation
- Adjustable J-bolt frame and blocking add to short circuit withstand
- In-house short circuit testing capability allows for audit testing as required
- Non-interlaced low voltages
- 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
- 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
- 20° C 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 and 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 (available only on step-up/step-down transformers)
- 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
- NEMA TP-1 compliant designs
- DOE Efficiency Ruling compliant designs available
Product Scope |
