SPNG · Engineering, consulting, service
Protection & commissioning
From the coordination study to functional tests on the electrical installation.
Verification in the field.
- Protection settings and verification of thresholds and tripping times against the coordination study
- Protection relay start-up and commissioning
- Current and voltage transformer verification
- Auxiliary-circuit loop checks
- LV, MV and HV circuit-breaker opening, closing and interlock tests
- Automatic transfer and emergency-generator logic testing
- Transformer, motor and generator start-up
- Manual and automatic synchronisation tests
- Power quality measurements and advanced analysis of results using the proprietary SPNG PQ Analyzer software


Test equipment
Testing and measurement.
The 2024 equipment profile includes ISA DRTS-33 and T1000plus relay test sets, plus Chauvin Arnoux instruments for power quality, earth resistance, soil resistivity and insulation resistance.
Power Quality
SPNG PQ Analyzer
We perform on-site power quality measurements and advanced analysis of the results using SPNG PQ Analyzer, our proprietary software.
