VAMP 265 - Page 99

Technical description
3 Supporting functions
3.2 Disturbance recorder
VM265.EN011
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99
Available channels
The following channels i.e. signals can be linked to a
disturbance recorder:
Channel
Description
Available for
waveform
IL1, IL2, IL3
Phase current
Yes
I‟L1, I‟L2, I‟L3
Phase current
Yes
Io1, Io2
Measured residual current
Yes
f
Frequency

IoCalc
Phasor sum Io = (IL1+IL2+IL3)/3

I‟oCalc
Phasor sum Io = (I‟L1+I‟L2+I‟L3)/3

I1, I‟1
Positive sequence current

I2, I‟2
Negative sequence current

I2/I1, I‟2/I‟1
Relative current unbalance

I2/In, I‟2/I‟n
Current unbalance [xI
GN
]

IL
Average (IL1 + IL2 + IL3)/3

I‟L
Average (I‟L1 + I‟L2 + I‟L3)/3

DO
Digital outputs
Yes
DI
Digital inputs
Yes
THDIL1
Total harmonic distortion of IL1

THDI‟L1
Total harmonic distortion of I‟L1

THDIL2
Total harmonic distortion of IL2

THDI‟L2
Total harmonic distortion of I‟L2

THDIL3
Total harmonic distortion of IL3

THDI‟L3
Total harmonic distortion of I‟L3

IL1RMS
IL1 RMS for average sampling

IL2RMS
IL2 RMS for average sampling

IL3RMS
IL3 RMS for average sampling

ILmin

I‟Lmin

ILmax

I‟Lmax

ΔIL1,ΔIL2,ΔIL3

IL1w,IL2w,IL3w

I‟L1w,I‟L2w,I‟L3w
