Transients - Siemens SICAM Q100 7KG95 Series Manual

4.1.3

Transients

If the instantaneous value of the primary rated voltage exceeds the parameterized reference value at one or
several sampling points, the SICAM Q100 device detects temporary overvoltages as transients . Detect and
capture transients as short as 100 µs at 50 Hz (80 µs at 60 Hz).
The following data and values are determined during the evaluation of the transients in SICAM Q100 and listed
in the window Transient detection (see chapter 9.4.2.7):
• Serial number of the event
• Time when transients start to occur (time stamp with date and time)
• Affected phase (a, b, c, ab, bc, ca)
• Transient duration
Parameterized reference value (in %) is up to 240 % of the primary rated voltage.
SICAM Q100, 7KG95xx, Device Manual
E50417-H1040-C522-A6, Edition 06.2019
4 Measured Quantities and Recording
4.1 Power Quality Measuring System and Recording System
31