De-Energized Tap Changers (DETC)

Sei manufactures de-energized tap changers (DETC) for distribution and power transformers from 15kV to 345kV and up to 2000A with insulation levels up to 1050kV BIL. SEI enjoys a reputation based on quality and reliability. The combination of our experience, robust design and overall quality result in a reliable and durable product.