Woodward highprotec MRI4, User Manual

Page: 474 / 727

Protective Elements
Parameter Description Setting range Default Menu path
Char Characteristic DEFT,
IEC NINV,
IEC VINV,
IEC EINV,
IEC LINV,
RINV,
ANSI MINV,
ANSI VINV,
ANSI EINV,
Therm Flat,
IT,
I2T,
I4T,
RXIDG
DEFT [Protection
Para
/<1..4>
/I-Prot
/IG[1]]
t Tripping delay
Only available if: Characteristic = DEFT
0.00 - 300.00s 0.00s [Protection
Para
/<1..4>
/I-Prot
/IG[1]]
tchar Time multiplier/tripping characteristic factor.
The setting range depends on the selected
tripping curve.
Only available if: Characteristic = INV Or
Characteristic = Therm Flat Or
Characteristic = IT Or Characteristic = I2T
Or Characteristic = I4TOr Characteristic =
RXIDG
0.02 - 20.00 1 [Protection
Para
/<1..4>
/I-Prot
/IG[1]]
Reset Mode Reset Mode
Only available if: Characteristic = INV Or
Characteristic = Therm Flat Or
Characteristic = IT Or Characteristic = I2T
Or Characteristic = I4TOr Characteristic =
RXIDG
instantaneous,
delayed,
calculated
instantaneous [Protection
Para
/<1..4>
/I-Prot
/IG[1]]
t-reset delay Reset delay for intermittent phase failures
(INV characteristics only)
Only available if: Characteristic = INV Or
Characteristic = Therm Flat Or
Characteristic = IT Or Characteristic = I2T
Or Characteristic = I4TOr Characteristic =
RXIDG Only available if:Reset Mode =
delayed
0.00 - 60.00s 0.00s [Protection
Para
/<1..4>
/I-Prot
/IG[1]]
474 MRI4 DOK-HB-MRI4-2E