PAD MOUNT
SINGLE PHASE
kVA Ratings: 15 kVA through 833 kVA
Voltage Ratings: 34,500 GrdY / 19,920 V — up to 170 kV BIL
Technical Specifications & Features
Ratings & Configurations
- Power Ratings
- Ratings through 833 kVA
- Voltage Ratings
- Up to 34,500 GrdY / 19,920 V
- Operating Frequency
- 60 Hz (50 Hz available upon request)
- BIL
- Selected for the specified voltage rating and application (up to 170 kV BIL)
- Temperature Rise
- 65°C average winding rise
- Winding Material
- Copper (Cu) or Aluminum (Al)
- Core Construction
- High-grade Grain-Oriented Electrical Steel (GOES)
- Cooling Class
- Liquid-filled, self-cooled (ONAN / KNAN)
Standard Design Features
- Hinged hood with recessed locking provisions
- 200 A well/insert or 600 A integral separable connector interfaces (IEEE Std 386)
- Dedicated tank and LV grounding provisions
- Pressure-relief valve
- Mineral oil insulating fluid (ASTM D3487)
- Durable laser-etched / Anodized Aluminum nameplate & lifting provisions
Available Optional Features
- 304 Series Stainless-steel tank and enclosure
- Dual-voltage primary windings
- Multiple secondary-voltage arrangements
- Externally operated de-energized tap changer (DETC)
- Customer-specified high- and low-voltage bushings
- Bay-O-Net fuse assembly with current-limiting backup fuses or isolation links
- Customer-specified HV/LV bushings, pressure-relief valve, or internal fault detection (IFD)
- Natural ester fluid (available upon request)
- Loadbreak switch (2-position / 4-position)
- Additional gauges, drain valves, and sampling accessories
Energy Efficiency & Factory Testing
DOE Energy Efficiency Compliance
Designed to comply with the amended U.S. Department of Energy energy conservation standards under 10 CFR Part 431, Subpart K (applicable to covered distribution transformers manufactured on or after April 23, 2029).
Testing & Quality Control
Each production transformer undergoes 100% routine testing in accordance with IEEE C57.12.90 and rigorous internal quality-control procedures. Certified Factory Test Reports (CTR) are provided with every delivery.
Applicable Standards & Fluid Specifications
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Single-Phase Pad-Mounted — RFQ Form
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Engineering Notice: Final ratings and features are confirmed for each order. Additional configurations, accessories, testing, documentation, and other project-specific requirements may be available upon request and are subject to engineering review.