Hioki PW3360-21 - Page 212

12.5 Calculation Formulas
204
* Subscript c: measurement channel
Displace-
ment power
fact
or
DPF
PF/Q/S
(fundamen-
tal wave
calculation)
DP
F
1
DPF
1
DPF
2
DPF
1
DPF
2
DPF
3
DPF
c
= si DPF= si
• The component si indicates lag and lead. The sign of reactive power Q (fundamental wave
reacti
ve power) is used.
Positive sign: Lag [Display indicates LAG,
and output data is positive.]
Negative sign: Lead [Display indicates LEAD, and output data is negative.]
• (1): Harmonic calculation fundamental wave (1st order)
• When Sc
(1)
= 0, DPF is determined as invalid data.
Power factor, Displacement power factor
Wiring
setting
Item
Single-phase
2 wire
Single-phase
3 wire
Three-phase
3 wire
Three-
phase
4 wire
1P2W 1P3W 1P3W1U 3P3W2M 3P3W3M 3P4W
P
c1
S
c1
------------
P
1
S
1
----------
Electric energy, Energy cost
Wiring
setting
Item
Single-phase
2 wire
Single-phase
3 wire
Three-phase
3 wire
Three-
phase
4 wire
1P2W 1P3W 1P3W1U 3P3W2M 3P3W3M 3P4W
Active energy
(consumption)
WP+[W
h]
WP+= (+)
•
k: Calculation unit time [h]; h: measurement duration
• P(+): Only the consumption component of active power (positive component) is used.
Active energy
(Regenera-
tion)
WP-[Wh]
WP-= (-)
•
k: Calculation unit time [h]; h: measurement duration
• P(-): Only the regeneration component of active power (negative component) is used.
Reactive
energy
(Lag)
WQ_LAG
[v
arh]
WQ_LAG= (LAG)
• k: Calculation unit time [h]; h: measurement duration
• Q(LAG): Only the lag component of reactive power is used.
Active energy
(Lead)
WQ_LEAD
[v
arh]
WQ_LEAD= (LEAD)
• k: Calculation unit time [h]; h: measurement duration
• Q(LEAD): Only the lead component of reactive power is used.
Energy cost
Ecost
[User-speci-
fied units]
Ecost=WP+×rate
• WP+: Uses active energy consumption only.
• rate: Unit cost (User-specified setting from 0.00000 to 99999.9/kWh)
k P
1
h

k P
1
h

k Q
1
h

k Q
1
h
