315kVA Pad Mounted Transformer 12.47kV to 480V Three Phase DOE & ANSI Certified
Buiten 315 kVA 12,47 kV/480V op pad gemonteerde transformator met opklapbare behuizing
315kVA pad mounted transformer 12.47kV to 480V
,three phase pad mounted transformer ANSI certified
,DOE certified pad mounted transformer 480V
The 315 kVA Three-Phase Pad-Mounted Transformer (American-style compartmental pad-mount) is a compact, dead-front, oil-immersed distribution transformer designed for underground power distribution systems in the United States. Perfect for residential subdivisions, commercial buildings, industrial parks, data centers, and EV charging stations.
- Rated Capacity: 315 kVA
- Primary Voltage: 12.47 kV Delta
- Secondary Voltage: 480 V Wye (480Y/277 V)
- Vector Group: Dyn11
- Impedance: Approx. 4.75% (range 4.5%–5.75%)
- Losses: Meets or exceeds DOE 2016 efficiency standards
- Average Winding Temperature Rise: 65°C
- Cooling Type: ONAN
- Frequency: 60 Hz
- Tap Changer: ±2 × 2.5% (de-energized)
- BIL: 95 kV (HV), 30 kV (LV)
- Flip-top hood – 180° opening for easy access and maintenance
- Fully sealed dead-front construction – tamper-resistant, no exposed live parts
- Robust steel enclosure with high-quality powder coating (Munsell Green standard)
- Radial or Loop feed configuration available
- Dual fusing protection (Bay-O-Net + ELSP current-limiting fuses)
- Complies with ANSI/IEEE C57.12.28, C57.12.34, DOE 2016, UL/CSA standards
Customers frequently ask “Can you add XX?” – the following popular options directly affect pricing:
- Enclosure: Stainless steel tank base, cabinet, or full 304/316 stainless steel (excellent corrosion resistance for coastal or harsh environments)
- Fluid: Mineral oil or Envirotemp™ FR3 natural ester fluid (fire-resistant, biodegradable, higher flash point)
- Switching: 2-position or 4-position loadbreak switch (V-blade or T-blade)
- Tap Changer: Externally operable de-energized tap changer
- Fusing: Various Bay-O-Net + ELSP combinations or upgrade to Vacuum Fault Interrupter (VFI)
- Gauges & Valves: Pressure-vacuum gauge (with contacts), liquid level gauge, dial thermometer (with alarms), drain/sampling valve
- Grounding: Copper ground bus, additional ground pads, stainless steel hinges and pentahead bolts
- Color: Standard Munsell Green or custom colors (ANSI #61 Gray, etc.)
- Low Voltage: Molded case circuit breaker provisions, extra-hole spades (6, 8, 10, or more holes)
- Other: Surge arresters, Kirk-Key interlock, nitrogen blanket, stainless steel nameplate, parking stands, etc.
- 20+ years of manufacturing experience with strict quality control
- Full routine and type testing per ANSI/IEEE standards
- Fast lead time and proven U.S. market export expertise
- Standard 12-month warranty (extendable)
Custom configurations are welcome. Contact us for detailed drawings, test reports, and competitive pricing!
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