AMP Magnetics is an independent manufacturer’s representative for leading domestic builders of standard and custom-engineered dry-type power transformers.
Standard catalog transformers often fail prematurely when exposed to non-linear harmonic heating from variable frequency drives, SCR power supplies, and automated machinery. As a manufacturer’s representative, AMP Magnetics connects OEMs and facility operators with plants capable of custom core-and-coil designs tailored to your thermal, electrical, and dimensional boundaries.
Whether your project requires high K-factor harmonic mitigation, electrostatic shielding to attenuate common-mode noise, or retrofit enclosures engineered to drop onto existing concrete pads, we guide your job from initial spec review to delivered equipment.
Our represented manufacturers engineer units across the following operational profiles:
| Transformer Classification | Typical kVA Range | Voltage Classes | Key Engineering Attributes |
|---|---|---|---|
| Drive Isolation Transformers | 15 kVA – 1,500 kVA | Up to 600V Primary & Secondary | Braced for mechanical shock of frequent motor starts; electrostatic copper shield between windings to isolate common-mode electrical noise. |
| K-Factor Harmonic Rated | 30 kVA – 2,500 kVA | 208V, 240V, 480V, 600V | Engineered for high harmonic neutral currents (K-4, K-13, K-20, K-30); 200% rated neutral bus bar, transposed conductors to reduce eddy losses. |
| General-Purpose Isolation | 15 kVA – 3,000 kVA | 600V Class / 5 kV Class | Step-up / step-down plant distribution; copper or aluminum windings; 220°C insulation systems with 150°C, 115°C, or 80°C temperature rise options. |
| Medium-Voltage Dry-Type | 225 kVA – 5,000+ kVA | 2.4 kV, 4.16 kV, 12.47 kV, 13.8 kV, 34.5 kV | VPI (Vacuum Pressure Impregnated) or Cast Resin; indoor substation integration or outdoor weatherproof padmount enclosures. |
| Custom & Retrofit Enclosures | All Sizes | Custom Tap Configurations | NEMA 1 (indoor), NEMA 3R (outdoor rainproof), NEMA 4X (304/316 stainless steel for chemical/marine), custom dimensions to match legacy footprints. |
Specifying an 80°C or 115°C temperature rise over a 220°C class insulation system yields significantly lower operating losses, extended service life, and built-in continuous overload capability.
A grounded copper foil shield between primary and secondary windings attenuates line transients and high-frequency noise from passing into sensitive downstream control systems.
Units can be specified with embedded winding temperature detectors (RTDs, thermocouples, or thermistors) wired to terminal blocks for SCADA and PLC integration.
Send your single-line diagram, kVA requirement, primary/secondary voltages, and dimensional requirements to our desk for quotation coordination.
Submit Transformer RFQ