5
the crocodile through the voltage test line, and the other end is connected to the
instrument 6-core air seat (voltage input end). Or access through a voltage extension
cord.
ii.
Wireless measurement method: the voltage input is connected to the PT secondary
terminal through the alligator clip of the voltage test line, and the other end is connected to
the wireless module 6-pin aviation seat (voltage input terminal
）
.
iii.
iii. No PT measurement method: No voltage signal is connected, only current signal is
connected.
Regardless of the measurement method, the current wiring method is the same. The
alligator clips of the ABC three-phase current wiring are connected in series with the zinc
oxide to be measured.
c) PT transformation ratio: PT quadratic method can set a voltage transformation ratio
Ku, which is "multiplied" by the reference voltage amplitude input by the instrument, and
affects the voltage-related data. Set appropriate PT ratio in wired or wireless mode, which
can directly display the bus voltage.
After the data is stable, press the lock screen button and the test ends.
Parameter Description
：
Here, a single-phase full data screen is used to illustrate the
meaning of the data.
Primary voltage
：
According to the bus PT transformation ratio, it is the bus voltage.
Secondary voltage
：
The actual measured voltage value.
Ix
：
Full current effective value
Irp
：
Resistive current peak
，
Ir1p
：
The fundamental peak value of the resistive current.Ir1p = Ix1p sinΦ
Ic1p
：
The peak value of the capacitive current fundamental wave.Ic1p = Ix1p cosΦ
P1
：
Fundamental power consumption.P1 is equal to the product of the effective value of
the fundamental wave of resistive current and the effective value of the fundamental wave
of voltage.
Ir3p
、
Ir5p
、
Ir7p
：
3rd, 5th, 7th harmonic peak value of resistive current.
Φ
：
The current leads the voltage angle, which already contains the compensation angle
