User Manual

76
Quantities concerning powers and energies
Measurement
Measurement range without ratio
(with unity ratio)
Display resolution
(with unity ratio)
Maximum intrinsic error
Minimum Maximum
Active
power (P)
(1)
Excluding FLEX
10 mW
(3)
10 MW
(4)
4 digits at most
(5)
±(1 %)
cos Φ ≥ 0.8
±(1.5 % + 10 ct)
0.2 ≤ cos Φ < 0.8
AmpFLEX™
MiniFLEX
±(1 %)
cos Φ ≥ 0.8
±(1.5 % + 10 ct)
0.5 ≤ cos Φ < 0.8
Reactive
power (Q
1
)
(2)
and non-ac-
tive (N)
Excluding FLEX
10 mvar
(3)
10 Mvar
(4)
4 digits at most
(5)
±(1 %)
sin Φ ≥ 0.5
±(1.5 % + 10 ct)
0.2 ≤ sin Φ < 0.5
AmpFLEX™
MiniFLEX
±(1.5 %)
sin Φ ≥ 0.5
±(2.5 % + 20 ct)
0.2 ≤ sin Φ < 0.5
Distortion power (D)
(7)
10 mvar
(3)
10 Mvar
(4)
4 digits at most
(5)
±(4 % + 20 ct)
if ∀ n ≥ 1, τ
n
≤(100 ÷ n) [%]
or
±(2 % +(n
max
× 0,5 %) + 100 ct)
THD
A
≤ 20 %f
±(2 % +(n
max
× 0,7 %) + 10 ct)
THD
A
> 20 %f
Apparent power (S) 10 mVA
(3)
10 MVA
(4)
4 digits at most
(5)
±(1 %)
Peak factor (PF) -1 1 0.001
±(1.5 %)
cos Φ ≥ 0.5
±(1.5 % + 10 ct)
0.2 ≤ cos Φ < 0.5
Active
energy (Ph)
(1)
Excluding FLEX
1 mWh 9,999,999 MWh
(6)
7 digits at most
(5)
±(1 %)
cos Φ ≥ 0.8
±(1.5 %)
0.2 ≤ cos Φ < 0.8
AmpFLEX™
MiniFLEX
±(1 %)
cos Φ ≥ 0.8
±(1.5 %)
0.5 ≤ cos Φ < 0.8
Reactive
energy
(Q
1
h)
(2)
and
non-active
energy (N)
(2)
Excluding FLEX
1 mvarh 9,999,999 Mvarh
(6)
7 digits at most
(5)
±(1 %)
sin Φ ≥ 0.5
±(1.5 %)
0.2 ≤ sin Φ < 0.5
AmpFLEX™
MiniFLEX
±(1.5 %)
sin Φ ≥ 0.5
±(2.5 %)
0.2 ≤ sin Φ < 0.5
Distortion energy (Dh) 1 mvarh 9,999,999 Mvarh
(6)
7 digits at most
(5)
±(5.5 %)
THD
A
≤ 20 %f
±(1.5 %)
THD
A
> 20 %f
Apparent energy (Sh) 1 mVAh 9,999,999 MVAh
(6)
7 digits at most
(5)
±(1 %)
(1) The stated uncertainties on the active power and energy measurements are maxima for |cos Φ| = 1 and typical for the other phase differences.
(2) The stated uncertainties on the reactive power and energy measurements are maxima for |sin Φ| = 1 and typical for the other phase shifts.
(3) With MN93A clamp (5 A) or 5 A adapter or Essailec
®
adapter.
(4) With AmpFLEX™ or MiniFLEX for a 2-wire single-phase connection (phase-to-ground voltage).
(5) The resolution depends on the current sensor used and on the value to be displayed.
(6) The energy is equivalent to more than 114 years of the associated maximum power (unity ratios).
(7) n
max
is the highest order for which the harmonic ratio is non-zero.