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

3.6.9. Connection example for two-phase GPC (2PH) for a three-phase closed delta load
with transformer
L1
L2
L3
FUSE FUSE
FUSE
GG GG
(*)
GG FUSE
2/T1
SYMMETRIC
and
ASYMMETRIC
transformers
R
Load
R
Load
(*) = Connection only required with Vload input option (control option = 3)
FUSE
FUSE FUSE
GG
1/L1 1/L1
GPC-E1 GPC-M
2/T1
PE
R
Load
81900A "MHW_GPC-40/600A"_03-2021_ENG_page 43
Id
FUSE
1/L1
L1
V
GPC-E1
FUSE
2/T1
1/L1
L2
GPC-M
FUSE
2/T1
1/L1
L3
P
Id =
ƞ × √3 × V × cosφ
Vload Voltage on secondary (load)
FIRING MODE ZC, BF
HB DIAGNOSTICS
Total load break
AVAILABLE
Ultra-rapid fuse only required for controls
Fuse
with option Fuse = 0
GG Fuse
See Fuse sections
SYMMETRIC
and
ASYMMETRIC
transformers
Is
V
load
P
Is =
√3 × Vload × cosφ
CAUTION
(*) = With control option 3,
the Vload input cannot be
connected to the
secondary of the transformer
GPC - DIP switch configuration
DIP 1 DIP 2 DIP 3 DIP 4
ON OFF ON OFF
V Phase-to-phase voltage
P Total power
Current in primary
Id
Is Current in secondary
Transformer output
ƞ
(typical 0.9) if resistive load cos φ=1
R
R
R
DIP 5
ON