Special Transformer
Single phase Rectifier Transformer – IP Series
Model： Single phase Rectifier Transformer - IP Series
Precision-Engineered Galvanic Isolation and DC Bias Immunity for High-Reliability Rectifier Systems.
- Capacity: 0.5 - 100 kVA
- Isolation Withstand: AC 2.5 kV / 1 min
- Insulation Class: Class F / H
- Energy Efficiency: Up to 96.5%
Specifications
| Item | Value |
|---|---|
| Rated Capacity | 0.5 kVA to 100 kVA (Custom ratings available upon request). |
| Rated Frequency | 50 Hz / 60 Hz universal. |
| Primary Rated Voltage | Single-phase 110 V / 208 V / 220 V / 240 V / 380 V / 440 V / 480 V (Multiple voltage taps available). |
| Secondary Rated Voltage | AC 12 V, 24 V, 48 V, 110 V, 220 V, or custom voltages configured for target DC output levels (e.g., DC 12 V / 24 V / 48 V / 110 V). |
| Secondary Winding Configurations | Single secondary winding (for full-wave bridge rectifiers); center-tapped winding (for two-diode full-wave rectifiers); multi-tap / multiple isolated windings (for multi-rail DC architectures) |
| Impedance Voltage (%Z) | 2.5% to 6.0% (Optimized for commutating voltage drop and short-circuit protection limits). |
| Thermal Insulation Class | Class B, Class F, or Class H. |
| Dielectric Withstand Voltage | Primary to secondary / Primary to ground: AC 2,500 V for 1 minute with zero breakdown. |
| Insulation Resistance | Exceeds 100 MΩ tested at DC 500 V Megger. |
| Enclosure Protection Ratings | IP00 (Open core-and-coil for cabinet mounting), IP20, IP23 (Indoor ventilated steel enclosure). |
| Applicable Standards | IEC 61558-1 / IEC 61558-2-6 (Safety of Transformers & Power Supply Units), IEC 60076, CNS 13390. |
Applications
- Industrial DC Power Supplies & Battery Chargers: Primary voltage step-down and galvanic isolation for control panel DC buses, instrumentation power systems, and industrial float battery chargers.
- Compact Electroplating & Surface Finishing Equipment: Low-voltage, high-current single-phase full-wave power conversion for precision plating, anodizing baths, and chemical etching benches.
- Cathodic Protection Rectifier Systems (ICCP): Dedicated AC power input units for impressed current cathodic protection across buried pipelines, storage tank bottoms, and marine steel structures.
- Welding Equipment & Plasma Cutters: Front-end isolated supply for single-phase DC arc welding, resistance spot welders, and plasma cutting power modules.
- Railway Signaling & Telecom Auxiliary Power: Clean DC power distribution and isolation for railway signaling enclosures, trackside relay rooms, and communication repeater stations.
- Small-to-Mid Sized DC Motor Drives: Controlled rectification feed for DC motors used in conveyor belts, machine feeders, winches, and automated machinery using SCR drives.
- Laboratory Test Benches & Burn-In Stations: Clean, variable DC/AC test power isolation for power electronics R&D, circuit breaker testing, and endurance validation racks.
Product Features
- Thermal Mitigation for Non-Sinusoidal Harmonic Profiles: Engineered with oversized conductor cross-sections and low-loss magnet wires to withstand elevated skin-effect losses and heat generated by rectifier switching currents.
- DC Bias & Magnetic Saturation Resilience: Designed with conservative maximum flux density (Bmax) margins or specialized core air-gaps to eliminate saturation, audible hum, and core overheating caused by single-phase DC components.
- Full Grounded Electrostatic Shielding (Faraday Shield): Non-inductive copper foil shield between primary and secondary windings, blocking high-frequency common-mode noise and switching transients (dv/dt) from contaminating the AC mains.
- High Dielectric Galvanic Isolation: Robust insulation capable of withstanding AC 2.5 kV to 4.0 kV for 1 minute, preventing DC-side commutating spikes from puncturing upstream distribution networks.
- Low Stray Leakage Flux & Minimal EMI: Precision-assembled silicon steel cores with tight clamping mechanisms, minimizing stray electromagnetic interference for sensitive adjacent control instrumentation.
- Compact Footprint for Easy Enclosure Integration: Standardized mounting footprints for control cabinets, equipped with touch-safe terminal block covers to streamline panel integration and maintenance safety.