Hioki PW8001-01, Instruction Manual

Page: 69 / 262

63
Measuring Power
Scaling (when using VTs [PTs] or CTs)
This section describes how to set the ratio (VT ratio, CT ratio) when using VTs (PTs) or CTs
externally.
When a VT ratio or CT ratio has been set, VT or CT will be displayed with the setting indicators at
the top of the Measurement screen.
Display screen [INPUT]
>
[CHANNEL]
1 1
1
To open the settings window, tap the
channel detailed display area.
2
Tap the [ VT ] box, then set the VT ratio
using the numeric keypad.
See “Numeric keypad window” (p. 22).
Set the VT ratio to a common value for
channels in the same wiring configuration.
0.00001 to 9999.99
3
Tap the [
CT
] box and set the CT ratio
using the numeric keypad.
The CT ratio can be set individually for each
channel in the same wiring configuration.
0.00001 to 9999.99
The settings cannot be configured such that
the product of VT and CT is greater than
1.0E+06.
When a VT ratio has been set, all voltage
measurement items, including voltage peak
values, harmonics, and waveforms, and all
measured values for power measurement
items calculated using voltage will be multiplied
by the set ratio.
When a CT ratio has been set, all current
measurement items, including current peak
values, harmonics, and waveforms, and all
measured values for power measurement
items calculated using current will be multiplied
by the set ratio.
To set it to [OFF] , enter
1.00000
.
4
Tap [
×
] to close the setting window.
2 2 3 3
4 4
Displaying Power Numerically
HIOKI PW8001A961-00