ABB RER620 - Page 27

27
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
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
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
Characteristic Value
Operation accuracy
f< 
df/dt


Start time
f>/f< 
df/dt

Reset time 
Operate time accuracy 
Characteristic Value
Operation accuracy
f< 
df/dt


Start time
f> 
df/dt

Reset time 
Operate time accuracy 
Characteristic Value
Operation accuracy
Depending on the frequency of the voltage measured: f
n


n
Trip time accuracy 