MICROENER IM3G-VX, Руководство по эксплуатации

Страница: 21 / 36

IM3G-VX
Doc. N° MO-0068-ING
Rev. 1
Pag. 21 of 36
Copyright 2010 - Microener
Display Description Setting Range Step Unit
2Is 0.03 Ib
Negative sequence current alarm level
0.03 - 0.5 - Dis 0.01 Ib
t2Is 1 s
Independent trip time delay of alarm element
1 - 100 1 s
Ir> .02 Ib
Trip level of the reverse power element
(Active component of current as p.u. of In)
0.02 - 0.2 - Dis 0.01 Ib
tIr> 0.1 s Independent trip time delay of reverse power element 0.1 - 60 0.01 s
K1 300 %Zb
Diameter of the circle including the underimpedance tripping
zone
50 - 300 - Dis 1 %
K2 50 %Zb
Offset of the circle (% of Zb=Vn/(

3 Ib)
Underimpedance trip is inhibited on undervoltage
U<0,3Un and undercurrent I<0,2Ib 5 - 50 1 %
tz 0.2 s Trip time delay of the underimpedance element 0.2 - 60 0.1 s
ti 0 s
Integration time of underimpedance element.
To avoid non operation in case of impedance swinging the
reset of the trip time delay (tZ) only takes place if the
measured impedance remains outside the tripping zone for at
least ti
N.B . ( ti)must be always shorter than (tz)
0 - 10 0.1 s
Un +/- 1u
Operation mode of first voltage element
+ = overvoltage
- = undervoltage
+/- = over/under voltage
Dis = disactivated
+
-
+/-
Dis
+
-
+/-
Dis
-
1u 15% Un Pick-up level of the first voltage element 1 - 50 1 %
t1u 1.00 s Trip time delay of the first voltage element 0.10 - 60 0.1 s
Un + 2u
Operation mode of second voltage element
+ = overvoltage
- = undervoltage
+/- = over/under voltage
Dis = disactivated
+
-
+/-
Dis
+
-
+/-
Dis
-
2u 10% Un
Pick-up level of the second voltage element
1 - 50 1 %
t2u 3 s
Trip time delay of the second voltage element
0.10 - 60 0.1 s
Fn +/- 1f
Operation mode of first frequency element
+ = overfrequency
- = underfrequency
+/- = over/under frequency
Dis = disactivated
+
-
+/-
Dis
+
-
+/-
Dis
-
1f 0,5 Hz Pick-up level of the first frequency element 0.05 - 9.99 0.01 Hz
t1f 3 s Trip time delay of the first frequency element 0.1 - 60 0.1 s
Fn + 2f
Operation mode of second frequency element
+ = overfrequency
- = underfrequency
+/- = over/under frequency
Dis = disactivated
+
-
+/-
Dis
+
-
+/-
Dis
-
2f 1 Hz
Pick-up level of the second frequency element
0.05 - 9.99 0.01 Hz
t2f 0.5 s
Trip time delay of the second frequency element
0.1 - 60 0.1 s
Tc 60 m
Thermal time constant of the alternator
1 - 400 1 m
Ta/n 100 %
Prealarm level of the thermal image 50 - 110 1 % Tn
W< 0.05 Wb Pick-up level of the active underpower element
0.05 - 1.00 0.05 Wb
tW< 0.1 s Trip time delay 0.1 - 60 0.1 s
tBF 0.05 s
Max. reset time delay of the instantaneous elements after
tripping of the time delayed elements and time delay for
activation of the output relay associated to the Breaker Failure
function
0.05 - 0.5 0.01 s
The setting Dis indicates that the function is disactivated.