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3.6.14.
Connection example for three-phase GPC (3PH) for a three-phase star load without
neutral with transformer
L1
L2
L3
FUSE
FUSE
(*)
1/L1
GPC-E2
GPC-E1
2/T1
2/T1
SYMMETRIC
and
ASYMMETRIC
transformers
R3
R2
(*) = Connection only required with Vload input option (control option = 3)
FUSE
1/L1
1/L1
GPC-M
2/T1
PE
R1
81900A "MHW_GPC-40/600A"_03-2021_ENG_page 48
GPC-M
Id
FUSE
2/T1
1/L1
L1
V
GPC-E1
FUSE
2/T1
1/L1
L2
GPC-E2
FUSE
2/T1
1/L1
L3
P
Id =
ƞ × √3 × V × cosφ
ZC, PA, BF (bF.Cy ≥ 2)
FIRING MODE
Total load break for each individual branch.
HB DIAGNOSTICS
For PA mode HB diagnostics active with P>30%.
AVAILABLE
Ultra-rapid fuse only required for controls with option
Fuse
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
OFF
ON
V
Phase-to-phase voltage
P
Total power
Vload Voltage on secondary (load)
Id
Current in primary
Is
Current in secondary
Transformer output
ƞ
(typical 0.9) if resistive load cos φ=1
R1
R2
R3
DIP 5
ON
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