Hitachi Energy launches liquid-filled transformers with Transient Voltage Protection Technology

POWER TECHNOLOGY Hitachi Energy launches liquid-filled transformers with Transient Voltage Protection Technology

2023-12-06 From Hitachi Energy (Press release) 1 min Reading Time

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Hitachi Energy presented its groundbreaking solution to protect distribution transformers from transient voltage: Transformers with Transient Voltage Protection (TVP®) Technology. It is another milestone for the company’s commitment to developing innovative solutions for the energy industry. The solution sets new heights of reliability and resilience for transformers.

The new solution for liquid-filled transformers was presented yesterday during the inauguration of the company’s cutting-edge Transformers Factory in Bac Ninh, Vietnam.(Source: Hitachi Energy) — The new solution for liquid-filled transformers was presented yesterday during the inauguration of the company’s cutting-edge Transformers Factory in Bac Ninh, Vietnam.
(Source: Hitachi Energy)

When processes require electrical network switching or in case of nuisance tripping, the transformers can be at risk of premature failure due to switching transients, and result in costly outage. Transient voltage is a silent threat across different segments like data centers, solar and wind renewable power generation, Industries, Rail Infrastructure etc. using medium voltage fast-acting circuit breakers like Vacuum circuit breakers (VCBs).

While Vacuum circuit breakers (VCBs) have excellent arc-quenching capabilities that brings increased safety and efficiency to electrical systems, in certain system configurations and procedural operations, VCB (and SF6) switching can produce fast transient over voltages inside of transformer windings, some leading to failures. These failures result in system downtime and irreparable equipment damage, both incredibly costly to network managers.

Hitachi Energy’s Transformers with Transient Voltage Protection (TVP®) Technology provide complete protection to Transformers and downstream magnetic equipment, at every single switching instance. Their network agnostic design makes them the best fit, no matter what the network configuration is or how often switching operations are performed.

The TVP® technology is an already proven protection in Hitachi Energy’s dry-type transformers. This technology is now expanding to Hitachi Energy’s liquid-filled transformers.

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