The SiC-Heat DRY Series is a specialized dry-type isolation and voltage regulation transformer engineered for critical heating applications using Silicon Carbide (SiC) heating elements, most notably in the tin bath sections of float glass production lines. It is designed to actively compensate for the inherent resistance increase ("aging") of SiC rods over time, ensuring consistent and precise bath temperature by providing a wide, adjustable output voltage range. This ensures process stability, optimizes heater lifespan, and maintains glass quality in continuous industrial operations.
Product Features
• Active Aging Compensation
Uniquely designed to counteract the resistance increase of Silicon Carbide heating elements over their lifespan. By providing an adjustable output voltage, it maintains the required power delivery to the heaters, ensuring stable process temperature despite element aging.
• Wide Voltage Adjustment Range
Offers a substantial output voltage regulation range, typically 2 to 3 times the nominal voltage, allowing operators to significantly boost voltage as SiC rod resistance rises, thereby extending their usable service life.
• Precise Process Control
Enables fine-tuning of the heating power to the tin bath, which is critical for maintaining the precise thermal profile required for high-quality float glass production.
• Dry-Type Safety & Reliability
Utilizes a maintenance-friendly, air-cooled dry-type design. This eliminates fire and leakage risks associated with liquid-filled units, making it ideal for safe installation in industrial plant environments.
• Dedicated Application Design
Purpose-built as an isolating and regulating power source specifically for SiC heater loads and float glass line tin baths, ensuring optimal electrical matching and performance.
Specifications & Parameters
| Category | Specification / Description |
| Model Code | G [Phase] - [Rated Capacity (kVA)] / [High Voltage (kV)] |
| Model Breakdown |
G: Dry-Type; S/D: Three-Phase / Single-Phase; [kVA]: Rated Capacity; [kV]: Primary Voltage. |
| Primary Application | Power supply for Silicon Carbide (SiC) Rod Heaters, specifically in Float Glass Tin Baths. |
| Phase | Single-Phase (D) or Three-Phase (S) available. |
| Rated Capacity & Voltages | Customizable as per furnace/heater requirements. |
| Key Function | Voltage regulation to compensate for SiC heater resistance aging. |
| Voltage Adjustment Range | Wide range, typically 200% to 300% of base output voltage. |
| Cooling Method | Air Natural (AN) or Air Forced (AF) - Dry-Type. |
Ordering Information:
Product Model / Configuration
Rated Capacity (kVA)
Phase Number (Single or Three)
High and Low Voltage Ratings
Connection Vector Group
Required Voltage Regulation Range
Desired Tap-Changing Method (Off-Circuit or On-Load)
Packaging, Warranty & Certifications Packaging：
The dry-type transformer is securely mounted on a sturdy base frame. It is wrapped in protective, weather-resistant material and placed in a robust wooden crate for maximum protection during transportation. All accessories are packed separately.
Warranty：
We offer a standard 12-month warranty from the date of successful commissioning or 18 months from the date of shipment, whichever occurs first. The warranty covers defects in materials and workmanship.
Certifications & Testing：
Our manufacturing quality system is certified. The product is designed and tested in accordance with relevant electrical standards for dry-type transformers. Each unit undergoes comprehensive routine tests, including turns ratio, winding resistance, impedance voltage, no-load & load loss measurement, and dielectric withstand tests. Full test reports are provided.
