ABB REG316 4 Series - Page 150

ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-112
D. Inverse time NPS function settings - NPS-Inv
Summary of parameters:
Text Unit Default Min. Max. Step
ParSet 4..1 P1 (Select)
Trip 00000000
k1-Setting s 10.00 5.00 60.00 0.10
k2-Setting I2/IB 0.05 0.02 0.20 0.01
t-min s 010.0 1.0 120.0 0.1
t-max s 1000 500 2000 1
t-Reset s 0030 5 2000 1
CurrentInp AnalogAddr 0
IB-Setting IN 1.00 0.50 2.50 0.01
BlockInp BinaryAddr F
Trip SignalAddr ER
Start SignalAddr
Explanation of parameters:
ParSet 4..1
Parameter for determining in which set of parameters a par-
ticular function is active (see Section 5.11.).
Trip
defines the tripping channel activated by the tripping output of
the function (tripping logic).
k1-Setting
Multiplier. Operating characteristic constant.
k2-Setting
Continuously permissible NPS (I
2
/I
B
) and operating
characteristic constant.
Setting restrictions:
not < 0.05 I
N
/I
B
when supplied from protection cores.
t-min
Definite minimum operating time.
t-max
Maximum delay after being enabled regardless of inverse
characteristic.