Woodward HighPROTEC MRMV4 Manual página 244

4 Elementos de protección
4.4.1 Curvas de protección de motor
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. 68: Curva de protección de motor (ejemplo 2 sin RTD).
244
múltiplos de Ib
MRMV4
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
MRMV4-3.7-ES-MAN