In our previous installments, we explored the fundamental diagnostics of transformer health, covering everything from open-circuit characteristics to temperature rise limitations. However, as transformers become the backbone of increasingly complex power grids, verifying their structural integrity and insulation purity under extreme stress is paramount.
Finally, we will examine Partial Discharge (PD) testing, a sophisticated diagnostic capable of detecting microscopic defects before they escalate into catastrophic failures. By mastering these advanced evaluations, engineers can ensure that a transformer doesn't just work upon installation, but remains resilient against the rigors of long-term service.
