LOVATO ELECTRIC DCRG8 Manual Operativo página 26

26
Installation with MV measurement and correction on LV side
MAINS
DCRG8
L1 L2 L3
INPUT
CURRENT VOLTAGE
MEDIUM
VOLTAGE
1/5A~ 100-600V~
1 2 3 4 5 6 7 8
I1 I2 I3 C L1 L2 L3 N
S1
S2
CT1
FU9 FU10
VT1
FU14
QS1
VT2
FU15
LOW
VOLTAGE
QS2
FU16
LOAD TC1
CONFIGURATION WITH MV MEASUREMENT AND CORRECTION ON LV SIDE
Voltage measurement
Current measurement
Phase angle offset
Capacitor overload measurement
Parameter setting
NOTE: Recommended fuses for aux supply and voltage measurement inputs: F1A (fast).
Full medium-voltage wiring installation
MAINS
DCRG8
L1 L2 L3
CURRENT
MEDIUM
VOLTAGE 1/5A~
1 2 3 4
I1 I2 I3 C
S1
S1
CT1
S1
CT2
CT3 S2
VT1
QS1 FU9
VT2
FU14
LOW
VOLTAGE
QS2
LOAD
CONFIGURATION WITH MV MEASUREMENT AND CORRECTION
Voltage measurement
Current measurements
Phase angle offset
Capacitor overload measurement
Parameter setting
NOTE: Recommended fuses for aux supply and voltage measurement inputs: F1A (fast).
OUT
1 2 3 4 5 6 7
AUX
SUPPLY
100-415V~
110-250V=
9 10 11 19 12 13 14 15 16 17 18 20 21 22
nc A1 A2
FU11 FU12
FU13
FU1
R
KM1
R
K1
1 ph-to-ph voltage reading L1-L2 on
MV side
L3 phase on MV side
90°
1 reading calculated on L1-L3, on LV side
P02.03 = Three-phase P02.22 = LV/MV
P02.04 = L3 P02.23 = ON
P02.06 = L1-L2
OUT
1 2 3 4 5
INPUT AUX
VOLTAGE SUPPLY
100-415V~
100-600V~ 110-250V=
5 6 7 8 9 10 11 19 12 13 14 15 16 17 18
L1 L2 L3 N nc A1 A2
FU11
FU10
FU12 FU13
FU1
KM1
TC1
K1
3 ph-to-ph voltage readings L1-L2, L2-L3,
L3-L1 on MV side
L1-L2-L3 phases on MV side
90°
3 readings calculated on L1-L2, L2-L3, L3-L1
P02.03 = Three-phase P02.22 = MV
P02.04 = L1-L2-L3 P02.23 = ON
P02.06 = L1-L2-L3
8
FU2 FU8
R R
KM2
KM8
R R
K2 K8
6 7 8
20 21 22
FU2 FU8
KM2 KM8
K2
G
B
Contattori BFK...
BFK... contactors
K8