6.12
SEL-734 Meter Instruction Manual Date Code 20090730
Power Quality and Event Analysis
Sag/Swell/Interruption (SSI) Report
61000-4-30. See the Command Summary (Table 10.24 on page 10.33) for a
full list of VSSI commands.
f
Figure 6.6 Example SSI Response in ACSELERATOR QuickSet
At the end of each disturbance, the VSSI summary reports the following
information:
➤ List of events in chronological order.
➤ Event type
➢ DIP
➢ SWELL
➢ INT
➢ TRIG
➤ Date and time the event started.
➤ Event duration in hhh:mm:ss.sss
➤ Minimum and maximum voltage magnitude per
IEC 61000-4-30
➤ One of the three CBEMA/ITIC events regions
➢ Prohibited region (PR)
➢ No damage region (ND)
➢ Safe function region (SR)
VSSI Detailed Report
The detailed VSSI report includes a point by point record of each VSSI value
that is useful for graphing data post-disturbance. The VSSI report in the
ACSELERATOR QuickSet HMI interface or the SSI SEL ASCII commands
will display detailed VSSI reports. Table 6.5 and Table 6.6 describe the
meaning of the detailed VSSI status columns. See the Command Summary
(Table 10.24 on page 10.33) for a full list of VSSI commands.
The VSSI recorder archives the following information:
➤ Currents Ia, Ib, Ic, Ig, and In as a percentage of the nominal
current rating (shown in the report heading)
➤ Voltages VA, VB, and VC as a percentage of the VBASE
quantity (Meter Form 9)
➤ Voltages VAB, VBC, and VCA as a percentage of the VBASE
quantity (Meter Form 5)
Courtesy of NationalSwitchgear.com
To Next Page
Loading...
Need help?
General