Eaton Power Xpert PXM 4000, Руководство пользователя и инструкция по установке

Страница: 89 / 292

www.eaton.com
IM02601004E
Page 81
6 Functions on the Web Server Pages
CURRENT
The Power Xpert Meter measures per phase and average system current and calculates rms val-
ues over the period of 200 milliseconds. Neutral and Ground current measurements are optional;
if the current transformer for neutral or ground is not available the user has an option to select the
calculated values for ground and neutral currents.
NOTE: Current measurements are not available for the Vaux channels. Symmetric components are
available for all channels, but are not available for the standard PXM40xx version of the
Power Xpert Meter.
The meter will maintain a log of all rms measurements and symmetric components over the period
of 1 year with date and time stamps. The same information is available as a trend for display and
communications.
The most recent minimum and maximum values are detected for all the channels and symmetric,
and are logged with date and time stamps. Current minimum and maximum values can be cleared
by the user at any time. After the current values are cleared, the meter will start calculating new
minimum and maximum values.