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Underload
trip level
60% full-load
amperes
Underload run
delay: 5 Sec.
Motor running
with load
Underload
start delay
20 Sec.
J am trip level
180% full-load
amperes
J am start delay
15 Sec.
Motor starting current
(locked rotor condition)
6.1 times
full-load amperes
Fig. 58:
Curva de protección de motor (ejemplo 2 sin RTD).
MRM4-3.7-ES-MAN
múltiplos de Ib
MRM4
4 Elementos de protección
4.4.1 Curvas de protección de motor
Ultimate trip
level: 100%
full-load amperes
Note: I is a
combination of
positive (I
) and
1
negative (I
)
2
sequence
motor currents
Max. allow.
locked-rotor
amperes:
6.1 times full-
load amperes
Stall time:
15 Sec.
Instantaneous
overcurrent:
12 times full-
load amperes
Instantaneous
overcurrent:
start delay set
for 2 cycle
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