EMR-4000
IM02602009E
1)
It is recommended to set the I< threshold to a value that is slightly below the fault current that is expectable.
By means of that it is possible to shorten the BF supervision timer and hence reduce thermal and mechanical damage
of the electrical equipment in case of a Breaker Failure. The lower the threshold, the longer the time that is needed to
detect, that the breaker is in the open position, especially if there are transients/harmonics.
Note: Tripping delay of the
BF module = Minimum delay time (tripping time) of the backup protection!
2), 3), 4)
Available in all devices with the
corresponding software
Availalble in all devices that offer
current measurement
Availalble in all devices that offer
current measurement
5)
Only if the signals are assigned onto the breaker within the breaker manager.
www.eaton.com
743
Содержание EMR-4000
Страница 61: ...EMR 4000 IM02602009E Ethernet RJ45 Terminal Marking www eaton com 61 1 8 TxD TxD RxD N C N C RxD N C N C...
Страница 423: ...EMR 4000 IM02602009E Name Description Logic LE23 Out inverted Signal Negated Latched Output Q NOT www eaton com 423...
Страница 493: ...EMR 4000 IM02602009E Motor Protection Curves Motor Protection Curve Example 1 www eaton com 493...
Страница 494: ...EMR 4000 IM02602009E Motor Protection Curve Example 2 without RTDs www eaton com 494...
Страница 495: ...EMR 4000 IM02602009E Motor Protection Curve Example 3 with RTDs www eaton com 495...