
OptiFender – Partial Discharge Monitoring for Transformers
OptiFender is an online partial discharge (PD) monitoring system for transformers that utilizes a revolutionary fiber optic sensing technology. The system helps identify and localize PD sources, saving time and money in fixing the issue. OptiFender allows data streaming to local servers or cloud solutions and can be used in remote locations, harsh environments, and ATEX zones due to its EMI immunity and passive sensors. The acquisition unit is placed in a control room at the substation, while multiple acoustic sensors are installed on the transformer tank walls. Defect location is calculated by triangulating the acoustic signals acquired by sensors simultaneously.