Woodward HighPROTEC MRMV4 Manual página 245

Stator temperature
measured directly
Stator winding
temperature
(trip) function
is set point
Underload
trip level
60% full-load
amperes
Motor running
with load
Underload run
delay: 5 Sec.
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. 69: Curva de protección de motor (ejemplo 3 con RTD).
MRMV4-3.7-ES-MAN
múltiplos de Ib
MRMV4
4 Elementos de protección
4.4.1 Curvas de protección de motor
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
245