Hioki PQ3100 User Manual

49
Wiring Method and Declared Input Voltage Settings
1
Enables you to select the wiring method for CH1 to CH3, and select ON/OFF of the input to CH4.
CH123
1P2W Single-phase 2-wire line
1P3W Single-phase 3-wire line
1P3W1U
Single-phase 3-wire line (1-voltage measurement)
Although voltages should be usually input to 2 channels for the single-
phase 3-wire line, a voltage is input to only CH1 in a simplistic way.
Additionally, the power of 1P3W is calculated, assuming that the voltage
U2 is equal to U1.
3P3W2M
3-phase 3-wire line (2-watt meter method)
Two line voltages and two line currents are measured to perform the
3P3W2M measurement. U3 is calculated from U1 and U2; I3, from I1 and
I2. Although the active power of the 3-phase line as a whole is equal to
the one measured by the 3P3W3M measurement, the balance of the each
phase cannot be checked. To check the balances, select the 3P3W3M.
See “Appx. 7 3-phase 3-wire Measurement” (p. Appx.21).
3P3W3M
3-phase 3-wire line (3-watt meter method)
Three phase voltage from the virtual neutral point and three line currents
are measured to obtain results for the 3-phase 3-wire line.
3P4W 3-phase 4-wire line
3P4W2.5E
3-phase 4-wire line (2-voltage measurement)
Only the voltage U1 and U3 are measured to obtain results for the 3-phase
4-wire line. U2 is calculated from U1 and U3.
(available after the rmware update)
CH4
ON
Enables the input to CH4.
Voltage: To measure a voltage between the neutral line and the grounding
wire
To obtain the voltage values, the potential differences between the terminal
N and each of the channels, CH1 through CH4.
The voltage terminal N is shared by CH1 through CH3 and CH4. Inputting
a voltage to CH1 through CH3 enables the U4 eld to display the value
even though no voltage is input to CH4.
Current: To measure a neutral line current of 3P4W or 1P3W
To measure a leakage current
OFF Disables the input to CH4.
2
Enables you to set the declared input voltage for the measurement line. It will be referenced for the
event settings (swell, dip, interruption).
See “SET UP, Event Settings 1 screen” (p. 72).
Variable (50 V to 800 V in 1 V increments), 100, 101, 110, 115, 120, 127, 200, 202, 208, 220, 230,
240, 277, 347, 380, 400, 415, 440, 480, 600
The settings can also be congured in the SET UP, measurement settings screen or in the Quick Set screen.
See “SET UP, Measurement Settings 1 screen” (p. 64), and refer to Measurement Guide.
4
Wiring (WIRING Screen)

Hioki PQ3100 Specifications

General

Brand	Hioki
Model	PQ3100
Category	Measuring Instruments
Language	English