Eaton EMR-4000 Installation, Operation And Maintenance Manual page 997

ANSI Functions
66 Starts per h (Start Inhibit)
67 Directional Overcurrent
67N Directional Neutral Overcurrent
67Ns Sensitive Directional Neutral Overcurrent
74TC Trip Circuit Supervision
78V Vector Surge Protection
79 Auto Reclosure
81 Frequency Protection
81U Underfrequency Protection
81O Overfrequency Protection
81R ROCOF (df/dt)
86 Lock Out
87 Differential Protection (Generator/Transformer/Busbar)
87GD Ground Differential Protection
87M Motor Differential Protection
87U Unit Differential Protection (protected zone includes generator and step-up transformer)
87UP Unit Phase Differential Protection (protected zone includes generator and step-up transformer)
EMR-4000
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IM02602009E
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