Oscillographic Data Storage (Waveform Capture); Figure 10-4 Oscillographics Analysis Tool - ABB DPU 1500R Instruction Book

ABB Distribution Protection Unit 1500R
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Oscillographic Data Storage (Waveform Capture)

To enhance disturbance analysis, the DPU1500R can be furnished with optional oscillographic data storage that captures
the waveform data for each of the four input currents and three input voltages. The storage capacity is 64 cycles of each
waveform. Retrieve the waveform data from the DPU1500R by using the File-Export Menu in the Windows External
Communications Program. Fault analysis is enhanced by an Oscillographic Display and Analysis Program that uses a
Microsoft® Windows-based Graphical User Interface.
Figure 10-4. Oscillographics Analysis Tool
You can program the DPU1500R to capture eight, four, two or one record(s) containing 8, 16, 32 or 64 cycles of data.
Thirty-two points per cycle for each of the seven analog inputs, the 52a (XO) and 52b (XI) contact inputs and numerous
protective and logic functions are stored in each waveform record. The capturing of waveform data can be triggered when
the trip output is actuated, the
breaker is opened or the
waveform capture input (WCI)
is initiated. You can also
program the DPU1500R to
trigger the capturing of
waveform data on trip of the
following functions: 50N-1
(IN>>1), 50P-1 (3I>>1), 50N-2
(IN>>2), 50P-2 (3I>>2), 50N-3
(IN>>3), 50P-3 (3I>>3), 51N
(IN>), 51P (3I>), 46 (Insc>),
and 27 (U<) (see Figure 10-3).
To provide as many cycles of
prefault and fault data as
possible, you can program the
trigger position at any quarter-
cycle within the fault record.
The time stamp of a waveform
record is captured at the time
of trigger.
Figure 10-5. Waveform Capture Setting Screen
Optional Features website:www.abb.com/papd
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