Siemens ACCESS 9340 Reference Manual page 235

PMCM-9340D-0208
2/2008
Magnitude (M) %
Nominal
110 < M ≤ 115
115 < M ≤ 130
130 < M ≤ 145
145 < M ≤ 160
160 < M ≤ 175
175 < M ≤ 200
M > 200
Total
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value of phase-to-phase voltage because of a shift of the neutral
point of the three-phase voltage system.
Under certain circumstances, a fault occurring upstream from a
transformer will produce temporary overvoltages on the low voltage
side for the time during which the fault current flows. Such
overvoltages will generally not exceed 1.5 kV rms.
The ACCESS 9360 detects and classifies the overvoltages for each
phase voltage as follows:
NOTE: Disturbance alarms are used to detect these events in the
ACCESS 9360.
Duration (t) seconds
1 ≤ t < 3 3 ≤ t < 10 10 ≤ t < 20
You can configure the number of allowable events per week for each
range of Magnitude in registers 3930 – 3937. (Default = -32768 =
Pass/Fail evaluation disabled.)
ACCESS 9340 and 9360 Meters
Appendix C—EN50160 Evaluation
20 ≤ t < 60 60 ≤ t < 180
Total
EN–227