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IEC_60599_BASIC_GAS_RATIOS

IEC_60599_BASIC_GAS_RATIOS

Formula​

=IEC_60599_BASIC_GAS_RATIOS(dga)

Description​

Performs an interpretation of the DGA based on various Gas Ratios.

Refer to IEC 60599:2022, Section 5.4 - Basic gas ratios, page 14

Output​

The outcome of the application of this rule.

5.4 Basic gas ratios, Analysis for sample taken on Fri Feb 24 2023 
  5.4 Table 1 - DGA interpretation table outcome, T1 => Thermal fault t < 300 oC 
  Potential failure modes as per A.2.2 Typical faults,
  Table A.1 - Typical faults in power transformers, Overloading of the transformer in emergency situations      
        Blocked item restricting oil flow in windings
        Stray flux in clamping beams of yokes