Connection Example For Two-Phase Gpc (2Ph) Control Option 4 For A Closed Delta Load With Transformer - gefran GPC 40-600A Use And Installation Manual

3.6.10. Connection example for two-phase GPC (2PH) control option 4 for a closed delta
load with transformer
L1
L2
L3
FUSE
FUSE
GG
GPC-E1
FUSE
2/T1
GG
Load
R
R
Load
FUSE FUSE
FUSE
GG
TA1...TA2
Input (J5)
J5 J5
1/L1 1/L1
GPC-M
2/T1
PE
SYMMETRIC
and
ASYMMETRIC
transformers
TA2 TA1 (to J5)
Load
R
CAUTION
Connections for control
option 4
(Vload inputs + external CTs)
81900A "MHW_GPC-40/600A"_03-2021_ENG_page 44
Id
FUSE
1/L1
L1
to TA2
to TA1
V
GPC-E1
FUSE
1/L1
L2
GPC-M
FUSE
1/L1
L3
P
Id =
ƞ × √3 × V × cosφ
FIRING MODE ZC, BF
HB DIAGNOSTICS
AVAILABLE
Fuse
GG Fuse
SYMMETRIC
and
ASYMMETRIC
transformers
2/T1
2/T1
P
Is =
√3 × Vload × cosφ
GPC - DIP switch configuration
DIP 1 DIP 2 DIP 3
ON OFF ON
V Phase-to-phase voltage
P Total power
Vload Voltage on secondary (load)
Current in primary
Id
Is Current in secondary
Transformer output
ƞ
(typical 0.9) if resistive load cos φ=1
Total load break
Ultra-rapid fuse only required for controls
with option Fuse = 0
See Fuse sections
R
Is
V
load
R
R
DIP 4 DIP 5
OFF ON