Technical Session Highlights
Transformer Electro-Mechanical Construction and Condition Assessment
Transformer Electro-Mechanical Construction and Condition Assessment
Transformer Electro-Mechanical Construction and Condition Assessment
As the heart of the Power Grid, transformers take center stage in the inaugural session of the Power Grid Summit 2024. Starting with the fundamental theory of transformers, this first session will delve into the laws of physics governing transformers’ operation.
A practical review of transformer components, encompassing windings, core, tap changers, cooling systems, and insulation materials, will be undertaken. Presenters will discuss prevalent electromechanical failures within transformers and their internal components, accentuating testing methodologies that are instrumental in detecting abnormal conditions, preventing catastrophic failures, or discerning alterations in the transformer’s performance characteristics. Testing methodologies include Turns Ratio Testing, Static and Dynamic Resistance Testing, demagnetization techniques, Leakage Reactance (short circuit impedance), and Sweep Frequency Response Analysis (SFRA). Moreover, presentations will establish correlations with established international standards delineated by IEEE, NETA, and CIGRE.
HV Bushing Construction and Condition Assessment
Transformer Electro-Mechanical Construction and Condition Assessment
Transformer Electro-Mechanical Construction and Condition Assessment
Constituting nearly 20% of documented transformer failures, faulty bushings represent a critical threat to the reliability of the Power Grid. The industry's commitment to leveraging modern construction techniques and engineering modeling to enhance the robustness of the Power Grid and to promote environmental preservation is commendable.
The globally reported incidents of bushing explosions had impacted not only transformer functionality but also the serviceability of neighboring equipment within substations and ultimately, impacted the livelihoods of consumers reliant on uninterrupted power supply.
This session will cover common bushing designs, as well as both factory and field testing methodologies. Furthermore, attendees will be introduced to novel diagnostics tools and algorithms such as 1 Hz assessment and DFR (Dielectric Frequency Response), making a significant difference when evaluating the condition of HV bushings.