Product Introduction
Overview
• Single phase pad mounted transformers are sealed distribution units combining oil-immersed windings, tamper-resistant enclosures and front-access bushings, engineered for dependable performance, reduced losses, simplified cable terminations and clear service access while meeting ANSI and IEEE standards for safety and reliability.
Application
• Single phase pad mounted transformers serve residential neighborhoods, small commercial loads and rural services, providing stable low-voltage supply from underground distribution networks, supporting voltage regulation, safety clearances and compact footprints that simplify siting, minimize visual impact and reduce ownership costs.
Standards & Compliance
• Meets or exceeds ANSI, IEEE, NEMA, DOE, RUS, and CSA requirements.
• Designed and tested in accordance with ANSI C57.12.00, C57.12.21, • C57.12.25, C57.12.28, and C57.12.90 for performance, safety, and enclosure integrity.
• Manufactured under ISO 9001 certified quality systems.
• Designed and tested in accordance with ANSI C57.12.00, C57.12.21, • C57.12.25, C57.12.28, and C57.12.90 for performance, safety, and enclosure integrity.
• Manufactured under ISO 9001 certified quality systems.
Tank & Enclosure
• Dead-front, tamper-resistant construction suitable for loop or radial feed.
• Crowned or domed tank cover to prevent water retention.
• Mild steel or stainless-steel cabinet and tank with corrosion-resistant coating systems that exceed IEEE standards.
• Recessed lifting provisions and removable sill for ease of handling and installation.
• Flip-top or hinged doors with stainless steel hinge pins, captive penta-head/hex-head locking bolts, and padlock provisions for security.
• Laser-engraved aluminum nameplate and NEMA/ANSI-compliant safety labels.
• Crowned or domed tank cover to prevent water retention.
• Mild steel or stainless-steel cabinet and tank with corrosion-resistant coating systems that exceed IEEE standards.
• Recessed lifting provisions and removable sill for ease of handling and installation.
• Flip-top or hinged doors with stainless steel hinge pins, captive penta-head/hex-head locking bolts, and padlock provisions for security.
• Laser-engraved aluminum nameplate and NEMA/ANSI-compliant safety labels.
Bushings & Connections
• Externally clamped high-voltage bushing wells (200 A) suitable for loop or radial feed applications.
• Externally clamped low-voltage threaded stud or spade-type bushings.
Parking stands for elbow connectors.
• Tank ground pads and removable ground strap for reliable earthing.
• Externally clamped low-voltage threaded stud or spade-type bushings.
Parking stands for elbow connectors.
• Tank ground pads and removable ground strap for reliable earthing.
Safety & Protection
• Automatic pressure relief device with provision for manual operation.
• Two-fuse primary protection system (bay-o-net expulsion fuse in series with current-limiting fuse), with overload indication per utility standards.
• Optional secondary circuit breaker or MagneX® interrupter protection.
• Oil-retention and drip protection in fuse assemblies to minimize environmental risk.
• Automatic pressure relief device with provision for manual operation.
• Two-fuse primary protection system (bay-o-net expulsion fuse in series with current-limiting fuse), with overload indication per utility standards.
• Optional secondary circuit breaker or MagneX® interrupter protection.
• Oil-retention and drip protection in fuse assemblies to minimize environmental risk.
Fluid & Accessories
• Filled with new, unused electrical grade mineral oil or Envirotemp™ FR3™ fluid (ester-based, fire-resistant, and environmentally friendly).
• Oil fill/level top plug and bottom drain plug with sampling device.
• Provision for temperature gauge, liquid level gauge, and pressure vacuum gauge as required.
• Under-oil surge arrester and grounding connectors available.
• Filled with new, unused electrical grade mineral oil or Envirotemp™ FR3™ fluid (ester-based, fire-resistant, and environmentally friendly).
• Oil fill/level top plug and bottom drain plug with sampling device.
• Provision for temperature gauge, liquid level gauge, and pressure vacuum gauge as required.
• Under-oil surge arrester and grounding connectors available.
Performance & Testing
• Continuous rating at 65 °C average winding rise, suitable for 50/60 Hz systems.
• Designed for primary voltages up to 34.5 kV and secondary voltages 120–600 V.
• Routine ANSI/IEEE tests performed on every unit: polarity, ratio, resistance, no-load and load losses, impedance, dielectric, induced/impulse, and leak test.
• Guaranteed compliance with DOE energy efficiency requirements and NEMA TR-1 audible sound limits.
• Continuous rating at 65 °C average winding rise, suitable for 50/60 Hz systems.
• Designed for primary voltages up to 34.5 kV and secondary voltages 120–600 V.
• Routine ANSI/IEEE tests performed on every unit: polarity, ratio, resistance, no-load and load losses, impedance, dielectric, induced/impulse, and leak test.
• Guaranteed compliance with DOE energy efficiency requirements and NEMA TR-1 audible sound limits.
