Thailand’s Provincial Electricity Authority (PEA) is undertaking a multi-year transformer assessment program. The initiative aims to improve power reliability by conducting a comprehensive TXLife Condition Assessment on 14 critical transformers, progressing at a rate of four units per year, with completion slated for 2027.

As electricity demand rises and grid stability becomes more challenging, PEA sought ways to enhance efficiency without investing in new substations or transmission lines. To address this, the utility has partnered with Hitachi Energy to implement advanced transformer monitoring and diagnostic tools. These tools provide real-time data on transformer health, allowing for proactive maintenance management and extending the lifespan of key grid components.

A central feature of the program is the integration of the TXpert™ Ecosystem, which enables predictive maintenance by continuously analyzing operational parameters. This approach not only boosts transformer reliability but also improves asset utilization, reducing the risk of unplanned outages. Additionally, the initiative supports PEA’s broader digitalization efforts, aligning with Thailand’s national energy objectives.

"Transformers Condition Assessment by Hitachi Energy supports us in accurately identifying the health and readiness of the transformers and also helps us prioritize refurbishment plans according to our needs," said Peera Rohitabutr, Manager of Power Transformer Division at PEA.

By focusing on optimizing asset efficiency instead of large-scale replacements, PEA aims to enhance grid resilience while controlling costs. This strategy demonstrates the growing role of digital solutions in modernizing power systems, ensuring Thailand’s energy infrastructure is well-equipped to meet future demands.

Source: Hitachi Energy