Eaton EMR-5000, Инструкция по установке, эксплуатации и обслуживанию

Страница: 948 / 1060

EMR-5000 IM02602012E
*3) For earth current sensitive the precision does not depend on the nominal value but is referenced to 100 mA (with In =1 A) respectively 500 mA
(with In = 5 A)
Differential Current Protection:
87M[x] Accuracy
Pickup ±1.5% of the setting value or 1% In.
Dropout Ratio 97% or 0.5 In
t DEFT
±1% or ±10 ms
Operating Time
Starting from I higher than 1.1 x I>
<35 ms
Disengaging Time <45 ms
Motor Protection:
66 [x] Accuracy
Stop Declaration
Time period current must drop below STPC
<50 ms
±1.5% of the setting value or 1% In
Anti Backspin
Blocking time to allow for back spin.
±1sec.
TBS Timer
Time between repeated starts.
±1sec.
Reset Starts Per Hour
Reset starts per hours timer from oldest start event.
±1 min.
Overcurrent Protection Elements:
49 Thermal Model Accuracy
Trip Threshold ±2%
Trip Delay ±1% or ±10 ms
Alarm Threshold ±2%
Alarm Delay ±1% or ±10 ms
Jam-Stall Protection:
50J
Accuracy
Pickup ±1.5% of the setting value or 1% In
Dropout Ratio 97% or 0.5% In
t DEFT
±1% or ±10 ms
Operating Time
Starting from I higher than 1.1 x I>
<35 ms
Disengaging Time <45 ms
www.eaton.com 948