Exact(8)
Of these, exactly half were near fault records (fault distance less than 20 km) and the remaining were far-fault records.
In this paper, we verify how far electric disturbance signals can be compressed without compromising the analysis of encoded fault records.
The selected set of ground motions as the far fault records represent a very broad range of spectral amplitudes up to two orders of magnitude.
Also shown is the mean spectrum of the 100 near fault and far fault records superimposed on the ASCE 7-05 despectrumctrum for the site.
The protection speed and security are evaluated via a very demanding test formed on the basis of several thousands of fault simulations, as well as on 60 fault records from 400 kV and 220 kV transmission networks.
Unlike previous works in digital fault records compression, the performance of the DSMP compression method is evaluated using a protocol based on fault analysis procedures commonly performed by expert engineers.
Similar(52)
However, site records indicate that the fault transients contain an abundant amount of information about the fault location and the type of fault in the fault record.
Validation is done through numerical simulations using the IEEE system 13 buses test feeder, a real distribution system from the RGE Sul Power Utility (Southern Brazil), and a real high impedance fault recorded from a digital relay.
b 100 Far-fault records.
Therefore, the cumulative effects of far-fault records are minor.
Fifty-four fault-normal near-fault records in the forward directivity were selected for this investigation.
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