Bender B93100735, Руководство пользователя

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Power Quality
59 PEM735_D00084_02_M_XXEN/06.2020
The display shows:
For voltage swell classification, the percentages of the voltage levels u are summarised
as follows:
u ≥ 200
200 > u ≥ 160
160 > u ≥ 140
140 > u ≥ 120
120 > u >110
6.3.10 Voltage sags
Voltage sags are typically originated by faults occurring in the public network or in the
systems of network users. The nominal supply voltage
U
n
is used as reference. The volt-
age sag start threshold is equal to 90 % of the U
n
, the hysteresis is 2 %.
The ratio between the residual voltage U
res
and the nominal supply voltage U
n
is dis-
played as a percentage value.
Display text Description
t Duration of the swells (ms)
Voltage swells u
(%)
Voltage swell level in %
Use the and buttons to navigate through the individual pages of
the voltage swells.
Press the "ENTER" or the "ESC" button to return to the report overview.
EN 50160 does not specify limits for these measured values.