Atec EuroSMC-Raptor - Manual (Page 4)

4
Relay Testing
With the Raptor, primary faults can be simulated to check if protective relays operate correctly; trip times are measured
and registered by the system, with 1 ms resolution. The automatic current regulation, the pre-set current injection, the
injection time control, and the test results storage, provide the user with the most
advanced primary testing tool for protection relays.
Circuit Breaker Testing
It is also essential for the verification of the entire protection scheme to verify live
CB tripping, and CB operating time analysis in combination with total trip time
including the IEDs and CB trip time. Measurements with the Raptor deliver
reliable and repeatable results due to high signal and measurement accuracy.
Current Transformer Testing
The Raptor system has many advanced features – such as powerful measurement
input, to allow performing a complete check of a CT. Through a few seconds
test the following results are obtained: Turns Ratio, phase (polarity) between
primary and secondary of the CT, and burden (Impedance, power and power
factor of the load). It can be also used for testing low power and Rogowski
CTs, checking ratio, phase and burden in VTs, and checking Ratio, Polarity,
short circuit impedance and reactance losses in Power Transformers. Test
templates are also available for Magnetization curve and “knee point” of
a CT.
Recloser and Sectionalizers
Through the high current fault simulation, the Raptor performs automatic test,
detecting and getting opening and reclosing times, number of operations,
partial and total times, of the recloser under test.
Switchgear Testing
Low voltage switchgear and controlgear assemblies require also high current testing
to comply with the relevant product standards, both by assembly manufacturers and
users. The Raptor is also suitable for testing the rated short-time current that the
assembly must withstand, and MCB/MCCBs tripping time performance, both
thermal and short-circuit trips.
Heat Runs
Thanks to the amplifier-based high current generation of the Raptor, it is ideal for
performing heat runs, maintaining the current injection stable throughout long-term
testing, and measuring the corresponding time.
Polarity Testing
The Polarity Tester is a lightweight handheld accessory used to verify the correct wiring
in a quick and simple way, as the Raptor injects a special polarized signal into the primary
side of any transformer (CT, VT, PT, etc). This is especially useful for checking polarities in
remote connections and/or those with difficult access.
Ground Grid Testing
By injecting high current and measuring with the low level voltmeter it is possible to detect
the existence of any bad or eroded contact in the ground grid.
Functionality Updates
The Raptor System will not become obsolete as all functional elements are
programmable. We at SMC keep the end users updated with free new updates and
applications required by market demands. Furthermore, the Master unit is designed
to enable additional functionality with future add-on equipment.
The Raptor System: Applications