Notícias
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Your Practical 2025 Buyer’s Guide to Short Circuit Impedance Testers: 7 Factors to Check
Ler maisAbstract The measurement of short circuit impedance serves as a fundamental diagnostic for assessing the mechanical and electrical integrity of power transformers. This parameter, a composite of winding resistance and leakage reactance, provides a sensitive indicator of winding geometry. Any deformation, displacement, or damage resulting from mechanical stresses during transport, installation, or through-fault events manifests […]
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Guia comprovado sobre analisadores de resposta em frequência de varredura: detete 5 falhas críticas nos transformadores antes que estas ocorram
Ler maisAbstract The operational integrity of power transformers is fundamental to the stability of electrical grids. Failures can lead to catastrophic outages, significant financial loss, and safety hazards. Sweep Frequency Response Analysis (SFRA) has emerged as a powerful and sensitive diagnostic method for assessing the mechanical and electrical condition of a transformer's active parts without internal […]
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Avoid These 5 Costly Insulation Failures: A Practical 2025 Guide to Tan Delta Testers
Ler maisAbstract Tan Delta testing, also known as dissipation factor or loss angle testing, is a non-destructive diagnostic method used to evaluate the condition of electrical insulation in high-voltage apparatus. The test measures the degree of dielectric loss in an insulating material, which correlates with its quality and integrity. By applying an AC voltage and measuring […]
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Guia do comprador especializado: 5 verificações críticas para a sua compra de analisadores CT PT 2025
Ler maisResumo A integridade operacional dos sistemas de energia eléctrica depende fundamentalmente do desempenho preciso dos transformadores de medida, nomeadamente os transformadores de corrente (TC) e os transformadores de potencial (TP). Estes dispositivos são os órgãos sensoriais da rede, fornecendo as medições necessárias para a proteção, controlo e medição de receitas. Um analisador de TC e TP é um instrumento de diagnóstico especializado concebido [...]