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3.6.17.
Connection example for three-phase GPC (3PH) for a three-phase closed delta load
with transformer
L1
L2
L3
(*)
(*)
(*)
1/L1
GPC-E2
GG FUSE
2/T1
SYMMETRIC
and
ASYMMETRIC
transformers
R
Load
R
(*) = Connection only required with Vload input option (control option = 3)
FUSE
FUSE
FUSE
1/L1
1/L1
GPC-E1
GPC-M
2/T1
2/T1
R
Load
Load
81900A "MHW_GPC-40/600A"_03-2021_ENG_page 51
FUSE
L1
FUSE
L2
FUSE
L3
PE
P
Id =
ƞ × √3 × V × cosφ
FIRING MODE
HB DIAGNOSTICS
AVAILABLE
Fuse
GG Fuse
GPC-M
Id
1/L1
2/T1
SYMMETRIC
ASYMMETRIC
V
transformers
GPC-E1
2/T1
1/L1
GPC-E2
1/L1
2/T1
Is =
√3 × Vload × cosφ
(*) = 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
ON
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
ZC, PA BF (bF.Cy ≥ 2)
Partial and 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
and
Is
R
V
load
R
R
P
CAUTION
DIP 4
DIP 5
ON
OFF
ON
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