SCB Resin Cast Dry-type Transformer
The SCB Series Epoxy Resin Cast Dry-Type Transformer is a highly energy-efficient power distribution device designed with advanced digital and intelligent technologies. Both the high- and low-voltage windings of this transformer are vacuum-cast and encapsulated within fully enclosed epoxy resin; furthermore, the unit integrates advanced intelligent temperature control and wireless monitoring systems, enabling real-time perception of its operational status. The device features exceptional overall mechanical strength and superior electrical performance, offering outstanding maintenance-free reliability and robust environmental adaptability.
Description
Technical Advantages
1. Digital Intelligent Monitoring: Pre-installed with a new generation of intelligent temperature control instruments and wireless sensors, supporting seamless integration with cloud platforms to enable real-time temperature monitoring, fault pre-warning, and remote operation and maintenance.
2. Superior Fire and Explosion Protection: The epoxy resin casting material features high flame retardancy and self-extinguishing properties; it does not generate toxic gases under conditions of extreme heat or electrical arcing, ensuring both safety and environmental friendliness.
3. Low Loss and High Energy Efficiency: The iron core utilizes high-quality cold-rolled silicon steel sheets arranged in a multi-step fully mitered joint structure, significantly reducing no-load losses, no-load current, and operational noise.
4. Exceptional Short-Circuit Withstand Capability: The fully resin-encapsulated design endows the windings with excellent overall mechanical rigidity, enabling them to withstand immense electromagnetic stresses and providing robust resistance against sudden short-circuit faults.
5. Moisture-Resistant and Corrosion-Proof Insulation: The windings are completely sealed and non-hygroscopic, ensuring reliable operation even under 100% relative humidity or in harsh salt-mist environments; they can be put into immediate service without the need for preheating.
6. High Overload Capacity: Optimized internal air-cooling ducts, combined with an efficient forced-air cooling system (AF), enable stable operation at 40% to 50% above the rated load for short durations.
Technical Parameters
Product Model: Resin Cast Dry-type Transformer
| Item | Parameter |
| Phase Number | Three-phase |
| Rated Capacity (kVA) | 30-2500 |
| Rated Voltage (V) | 10/0.4 |
| Rated Frequency (Hz) | 50 |
| Connection Group | Dyn11 or Yyn0 |
| Insulation Level | LI/AC 75/35kV LI/AC-/3kV |
| Tap Range | ±2×2.5%; ±5%; |
| No-load Loss (W) and No-load Current (Io) | Meet applicable international requirements |
| Load Loss (W) and Impedance Voltage (UK) | Meet applicable international requirements |
| Noise Level (dB) | Meet applicable international requirements |
| Insulation Heat Resistance Class | Class F, or Class H |
| Cooling Method | AN/AF |
| Voltage Regulation Mode | Voltage Regulation Mode: Off-circuit Tap Changer, On-load Tap Changer |
| Enclosure Protection Level | IP2X to IP4X |
| Ambient Temperature | -40°C to 40°C |
| Altitude | ≤1000m; if higher than 1000m, please specify in the agreement |
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