Protection Elements Accuracy; 10.1.3.1 Phase Overcurrent Protection - Eaton EMR-3MP0 Installation, Operation And Maintenance Manual

10 Technical Data EMR-3MP0
10.1 Tolerances / Specifications
10.1.3

Protection Elements Accuracy

The tripping delay relates to the time between pickup and trip. The accuracy of the
operating time relates to the time between fault entry and the time when the protection
element is picked-up.
Reference conditions for all Protection Elements: sine wave, at rated frequency, THD <
1%, measuring method: Fundamental

10.1.3.1 Phase Overcurrent Protection

Phase Overcurrent Protection
Elements: 50P[x]
Pickup
Dropout Ratio
t
Operating Time
At testing current ≥ 2 times pickup value
Disengaging Time
246
NOTICE!
Accuracy
±1.5% of the setting value or ±1% In.
97% or 0.5% In
DEFT
±1% or ±10 ms
<20 ms
<38 ms
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