VAMP 259 - Page 150

3.2 Disturbance recorder
3 Supporting functions
Technical description
150
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VM259.EN007
Parameter
Value
Unit
Description
Note
fy
Frequency behind circuit
breaker
fz
Frequency behind 2
nd
circuit breaker
U
LN
y
Voltage behind circuit
breaker, phase to ground
U
LL
y
Voltage behind circuit
breaker, phase to phase
I
L1
RMS
I
L1
RMS for average
sampling
I
L2
RMS
I
L2
RMS for average
sampling
I
L3
RMS
I
L3
RMS for average
sampling
ClrCh

Clear
Remove all channels
Set
(Ch)
List of selected channels
Set = An editable parameter (password needed)
*) This is the fundamental frequency rms value of one cycle updated every
10 ms.
**) This is the fundamental frequency rms value of one cycle updated every
20 ms.