Low voltage transformers are subjected to the following standard commercial tests:
No-Load Losses: Measured at rated voltage.
Load Losses: Evaluated under full load conditions.
Percent Impedance: Tested and verified at rated current.
Excitation Current Test: Conducted at 100% voltage.
Ratio Tests: Ensured across all tap settings.
Polarity and Phase Relation Tests: Confirmed for accuracy.
Induced Potential Tests: Simulates operational electrical stresses.
Impulse Tests: Includes full wave and reduced wave evaluations.
| Specification | Details |
|---|---|
| KVA Ratings | 15, 30, 45, 75, 112.5, 150, 225, 300, 500 |
| No. of Phases | Single-Phase or Three-Phase |
| Frequency | 50 Hz – 60 Hz |
| Primary Voltage | 600 V and below |
| Secondary Voltage | 120/208 V, 277/480 V, or other low voltage ranges |
| Tapping Range | Fixed or ±2 x 2.5% |
| Winding Material | Copper, Aluminum |
| Cooling Type | AN (Air Natural) |
| Fluid Type | Dry-type (no liquid) |
| Mounting | Wall-Mounted, Floor-Mounted |
Sound Level: Designed to meet NEMA TR1 Noise Standards.
IEEE Compliance: Conforms to IEEE C57.12.01 for dry-type transformers.
UL Certification: UL Listed and Compliant.
Efficiency: Meets DOE 2016 Efficiency Standards or higher.
Temperature Rise Options: 80°C, 115°C, 150°C.
Enclosure Type: NEMA 1 (Indoor), NEMA 3R (Outdoor).
Overcurrent Protection: Fuse or breaker options available for overload prevention.
Core Material: High-grade silicon steel for optimized performance.
Enclosure Options: Ventilated steel or aluminum enclosures for heat dissipation.
Quality System: ISO 9001 Certified.
Routine Tests: Conducted as per ANSI® and IEEE® standards.
Warranty
