Spang Power Electronics designs and manufactures custom dry-type transformers in 600, 5,000, 15,000, and 30,000 volt classes for single or three-phase operations. Spang transformers are designed for a variety of requirements and applications, including:
- Multi-tapped outputs for silicon carbide heating applications
- Drive isolation & custom voltage secondaries for industrial / commercial furnaces (using molybdenum disilicide, graphite, etc.)
- High Voltage / High Current system requirements
- Single load matching and rectifier-duty
- General Purpose
Dry-type transformers require minimum maintenance and provide long years of trouble-free service. Fire proof vaults and toxic gas venting systems are not required. With high impulse strength insulation systems, they will coordinate with all electrical system designs. Conservatively designed, the sound level is very low, making the Spang transformer desirable for indoor applications in commercial buildings.
Significant advantages over liquid filled designs
The dry-type transformer offers an excellent solution wherever environmental problems are a concern. Liquid cooled transformers, whether they are cooled with oil or a fire resistant liquid dielectric, can present an ecological problem in either their use or eventual disposal of the liquid. Dry-type transformer insulation systems now give performance equal to liquid filled designs for distribution voltages of 15KV or even higher. Dry-type transformers require no venting of toxic gases, an important safety consideration.