FMJL Current Transformer Failures - Energy Networks Association

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Progression Mechanism for a Dielectric Failure of the Insulation in an Oil Impregnated Instrument Transformer DGA FREE GAS FORMATION AUDIBLE NOISE THERMOVISION AND LARGE AMOUNTS OF RFI FAILURE CHANGES IN OIL INDICATORS OR PRESSURE GAUGES RISING ACETYLENE DETECTABLE CHANGE IN CAPACITANCE DETECTABLE RFI DETECTABLE CHANGE IN TAN DELTA Gas level rising LONG TERM MEDIUM TERM SHORT TERM V SHORT TERM 7
FMJL Failures How we managed the risk Since 2009 Quantified Risk Assessment based on ALARP principles using historic failures, number of units, length in service, equipment condition data, ballistic data, diagnostic data, exposure, and vulnerability Risk cannot be justified except in extraordinary circumstances Control measures introduced for the risks in this region to drive the residual risk toward the broadly acceptable region Level of residual risk regarded as insignificant and further effort to reduce risk is not likely to be required 8
Page 1 and 2: MANAGEMENT OF SAFETY RISKS FROM EQU
Page 3 and 4: FMJL Current Transformer Failures F
Page 5: FMJL Failures Understanding the Fai
Page 9 and 10: Overlapping RMHZs - Restricting Acc
Page 11 and 12: FMJL Failures Result of Intensive F
Page 13 and 14: Summary Safety of our staff, contr

FMJL Current Transformer Failures - Energy Networks Association

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