Last Updated：2025/12/07
(electrical engineering) A type of electrical power distribution system using two line wires connected to the ends of a distribution transformer and a grounded neutral wire connected to the center tap of the transformer, allowing loads to be connected between line and neutral and receive the normal line voltage (120 or 240 volts), or between the two opposite-phase line wires and receive twice the normal line voltage (240 or 480 volts).
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split-phase power
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Source Word
split-phase power
Noun
uncountable
(electrical
engineering)
A
type
of
electrical
power
distribution
system
using
two
line
wires
connected
to
the
ends
of
a
distribution
transformer
and
a
grounded
neutral
wire
connected
to
the
center
tap
of
the
transformer,
allowing
loads
to
be
connected
between
line
and
neutral
and
receive
the
normal
line
voltage
(120
or
240
volts),
or
between
the
two
opposite-phase
line
wires
and
receive
twice
the
normal
line
voltage
(240
or
480
volts).
Japanese Meaning
分割位相電源とは、配電用変圧器の両端に接続された2本の導体と、変圧器の中心抽出点に接続された接地された中性線を用いる電力供給システムです。負荷は、線と中性線間で通常の電圧（例えば120Vまたは240V）を受ける場合と、二つの逆位相の線間で接続して通常の電圧の二倍（例えば240Vまたは480V）を受ける場合があります。
Sense（1）
(electrical
engineering)
A
type
of
electrical
power
distribution
system
using
two
line
wires
connected
to
the
ends
of
a
distribution
transformer
and
a
grounded
neutral
wire
connected
to
the
center
tap
of
the
transformer,
allowing
loads
to
be
connected
between
line
and
neutral
and
receive
the
normal
line
voltage
(120
or
240
volts),
or
between
the
two
opposite-phase
line
wires
and
receive
twice
the
normal
line
voltage
(240
or
480
volts).
