Thytronic Pro-N NVA100X-D

MEASURES, LOGIC STATES AND COUNTERS
287
NVA100X-D - Manual - 02 - 2016
Side L, L3 power factor CosPhiL3
Side L resistive component of phase impedance L1 R
L1
Side L reactive component of phase impedance L1 X
L1
Side L phase impedance L1 Z
L1
Side L Impedance Z
12
, Z
23
, Z
31
Side L second harmonic of phase currents I
L1L...3L-2nd
Ratio of max 2nd harmonic of phase currents/comp. fond. side L I
-2nd
/I
L
Temperature T1...T8
The record quantity is depending on settings of following parameters:
Pre-trigger and post-trigger times
Number of allocated channels.
By means of the following formula the record quantity may be evaluated:
where:
N record quantity
v
i
sampled measures
v
RMS
analog measures (RMS)
n
B
logic variables (2 up to 16 variables)
t
pre
pre-trigger time interval
t
post
post-trigger time interval
f frequency
Example 1
With the following setting:
Pre-trigger: 0.25 s
Post-trigger: 0.25 s
Sampled measures:
i
L1H
, i
L2H
, i
L3H
, i
L1L
, i
L2L
, i
L3L
, i
dL1
, i
dL2
, i
dL3
, i
E1
, i
E2
Analog measures: I
L1H
, I
L2H
, I
L3H
, I
L1L
, I
L2L
, I
L3L
, I
dL1
, I
dL2
, I
dL3
, I
E1
, I
E2
Logic variables: KC1-1, KC1-2, KC1-3, KC1-4, KC1-5, KC1-6, IN1-1, IN1-2
up to 80 record can be stored if f = 50 Hz, since
Example 2
With following setting:
Pre-trigger: 0.5 s
Post-trigger: 0.5 s
Sampled data:
i
L1H
, i
L2H
, i
L3H
, i
L1L
, i
L2L
, i
L3L
, i
dL1
, i
dL2
, i
dL3
, i
E1
, i
E2
Analog channels: I
L1H
, I
L2H
, I
L3H
, I
L1L
, I
L2L
, I
L3L
, I
dL1
, I
dL2
, I
dL3
, I
E1
, I
E2
Digital channels: KC1-1, KC1-2, KC1-3, KC1-4, KC1-5, KC1-6, IN1-1, IN1-2
up to 33 records can be stored if f = 60 Hz, since
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
N = int
(34 + 20 v
i
+ 4 v
RMS
+ n
B
)·
12000
(t
pre
+ t
post
)(s)
·
f (Hz)
50 (Hz)
N = int
(34 + 20 v
i
+ 4 v
RMS
+ n
B
)·
12000
(t
pre
+ t
post
)(s)
·
f (Hz)
50 (Hz)
= 80
(34 + 20 · 11 + 4 · 11 + 2) · (0.25 + 0.25)
N = int
12000
·
50 (Hz)
50 (Hz)
= 80
(34 + 20 · 11 + 4 · 11 + 2) · (0.25 + 0.25)
N = int
12000
·
50 (Hz)
50 (Hz)
= 33
(34 + 20 · 11 + 4 · 11 + 2) · (0.50 + 0.50)
N = int
12000
·
50 (Hz)
60 (Hz)
= 33
(34 + 20 · 11 + 4 · 11 + 2) · (0.50 + 0.50)
N = int
12000
·
50 (Hz)
60 (Hz)