De-energized tap-changers and switches

Our de-energized tap-changers are the preferred solution of transformer manufacturers worldwide, thanks to their simplicity and ease of installation. Multiple deck arrangements make our designs the most compact de-energized tap changers on the market. With little or no required maintenance, our de-energized tap-changers are the ideal solution for both utility and industrial customers. 

Hitachi Energy's portfolio includes bridging, linear, and rotary options, with ratings up to 4,000 A and 1,050 kV BIL. We also offer solutions for pad-mounted and submersible distribution transformers and self-contained manually operated switchgear.

• More than 100 years of manufacturing experience in tap-changers
• High-quality materials ensure the longest lifetime
• Proven solutions with decades of successful field operation
• Type-tested beyond international standards
• High reliability thanks to few parts and low complexity in design
• Little to no maintenance
• Compact design