Trip/Step-by-step guidance for protection trips (G99, transformer, feeder, busbar and bus section) and SCADA alarm investigations. Work through each stage in order. The next stage opens once you confirm the current one, and a report is produced at the end.
Use your own judgement. This guide supports, and does not replace, the HV Safety Rules, site procedures and your competence as an authorised person. If conditions on site differ from what the guide assumes, or anything seems unsafe, stop, make the situation safe and contact the VPEL NMC.
Limits shown are G99 defaults and ESQCR statutory values. Answers and photos are saved on this device only.
