In a major city’s main substation, engineers noticed unusual voltage fluctuations in a 110kV transformer. Suspecting a winding fault, they used a portable TTR tester to perform a comprehensive test. The results revealed a 2% deviation in the turns ratio on one phase, indicating a developing shorted turn. By identifying the issue early, the utility was able to schedule a controlled outage for repairs, avoiding a potential blackout that would have affected thousands of customers. The tester’s high accuracy and automatic testing features allowed the team to complete the assessment in under an hour, demonstrating how this tool is indispensable for proactive maintenance and preventing costly service disruptions.
Todos os Produtos
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Verificador de Hipot
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Teste do transformador
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Kit de ensaio do relé de injecção secundário
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Analisador de disjuntores
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Analisador de gás SF6
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analisador da qualidade do poder
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verificador da bateria
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Verificador da resistência
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Localizador de falhas de cabo
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Detector de fase sem fio
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equipamento da calibração do medidor da energia
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Medidor CT PT
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Teste de detecção de sobretensão
How a Portable TTR Tester Helped Prevent a Substation Blackout
May 12, 2026
