Word

Meaning

中文

3 phase circuit

三相电路

Single phase AC

单相交流电路

Alternator

a device, used especially in a car, that produces an alternating current

n. [电] 交流发电机

RMS

Root-Mean-Square

均方根值；有效值

peak-to-peak voltage

峰峰值电压

phase

Each separate output is known as a phase conductor – named RED, WHITE (used to be YELLOW) and BLUE

相线；火线

neutral

零线；中性线

fuse

保险丝

circuit breaker

断路线

POLYPHASE

多相

STAR

A connection of the three phases to a common point, sometimes with a connection at the common or star point.

星形联结

DELTA

A connection of the three phases with the start of one phase connected to the end of the next . No neutral connection.

三角形联结

Phase voltage

相电压

Line voltage

线电压

Phase current

相电流

Line current

线电流

NEUTRAL CURRENT

中性线电流

out of balance loads

不对称负载

PHASE ANGLE

相位角

in phase

If in an AC circuit the voltage and current pass through the 0 point at the same time they are said to be ‘in phase’

同相

LAG

These cause an effect on the current that causes it to LAG (Inductive) the voltage

滞后

Lead

These cause an effect on the current that causes it to LEAD (Capacitive) the voltage

超前

out of phase

反相

Phase shifts

Physics a change in the phase of a waveform

相位移

power factor

功率因数

Power Factor meter

功率因数表