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3.7.11.
Connection example for three-phase GPC (3PH) for a three-phase star load without
neutral with transformer
Control option = 0
L1
L2
L3
(*)
FUSE
J6
1/L1
GPC-E2
2/T1
Symmetric
and asymmetric
transformers
R
Load
GPC-M
Id
FUSE
1/L1
L1
V
GPC-E1
FUSE
1/L1
L2
GPC-E2
FUSE
1/L1
L3
(*)
(*)
GG FUSE
J6
J6
1/L1
1/L1
GPC-E1
GPC-M
2/T1
2/T1
PE
Y/Δ
Y/Δ
R
R
Load
Load
2/T1
SYMMETRIC
and ASYMMETRIC
transformers
2/T1
2/T1
CAUTION
(*) : Take care to connect
terminals 1/L1 and 3/L1
to the same phase
81900A "MHW_GPC-40/600A"_03-2021_ENG_page 67
L1
L2
L3
GG FUSE
Id =
Is
R1
V
R2
load
R3
FIRING MODE ZC, PA, BF (bF.Cy ≥ 2)
HB DIAGNOSTICS
AVAILABLE
Fuse
GG fuse
Control option = 3 (Vload inputs)
(*)
(*)
FUSE
J7
J6
J7
J6
J7
1/L1
1/L1
1/L1
GPC-E2
GPC-E1
GPC-M
2/T1
2/T1
2/T1
Symmetric
Y/Δ
and asymmetric
transformers
Y/Δ
R
R
Load
Load
P
Is =
ƞ × √3 × V × cos φ
√3 × Vload × cosφ
GPC - DIP switch configuration
DIP 1
DIP 2
DIP 3
ON
OFF
OFF
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 for each individual branch.
For PA mode HB diagnostics active with P>30%.
Ultra-rapid fuse only required for controls with
option Fuse = 0
See Fuse sections
(*)
GG FUSE
J6
PE
R
Load
P
DIP 4
DIP 5
ON
ON
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