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2.2.2 Wiring method for 12-pulse rectifier power supply
In the initial status, terminals R/L1 and R2/L12, S/L2 and S2/L22, and T/L3 and T2/L32 of the converter unit are respec-
tively shorted with shorting conductors. For 12-pulse applications, remove the bolts and nuts shown in the figure below to
remove the shorting conductors.
Shorting conductor
As shown below, make sure to connect the star output terminals of the transformer with terminals R/L1, S/L2, T/L3 of the
converter unit. Likewise, connect the delta output terminals of the transformer with terminals R2/L12, S2/L22, T2/L32 of
the converter unit. (Use the bolts and nuts removed earlier for these connections.)
Connect these terminals with the
star output terminals of the power
transformer.
Connect these terminals with the
delta output terminals of the power
transformer.
R/L1
S/L2
T/L3
S2/L22
T2/L32
R2/L12
R1/L11 S1/L21
Charge lamp
Jumper
R/L1
S/L2
T/L3
R2/L12
S2/L22
T2/L32
Power supply
WIRING
P/+
N/-
To inverter
9
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