Joseph Heril Catubig

Experience

• 

  National Transmission Corporation

  Feb 2008 - Jun 2009

  Electrical Engineer

  • Performed electrical testing of High Voltage Equipment such as Power Transformers, Shunt Reactors, Power Circuit Breakers (PCB), Instrument Transformers (CT & VT), Lightning Arresters.• Prepared and issued Work Order.• Updating schematic wiring diagrams and as-built plans using ACAD Software.• Monitoring of weekly accomplishment report using AMIS software.

• 

  National Grid Corporation of the Philippines

  Jul 2009 - Dec 2016

  Principal Engineer

  • Supervised the contractor activities such as wiring of electrical control circuits and installation of electrical equipment.• Supervised technicians and electricians for their correction activities and repair works.• Performed tests and commissioning, preventive maintenance and corrective maintenance of the following power system protective relays: - Line Distance Relay (21) - Line Differential Relay (87L) - Transformer Differential Relay (87T) - Bus Differential Relay (87B) - Restricted Earth Fault (87N) - Directional Overcurrent Relay (67) - Instantaneous Overcurrent Relay (50) - Inverse Time Overcurrent Relay (51) - Overvoltage Relay (59) - Undervoltage Relay (27) - Overfrequency Relay (81O) - Underfrequency Relay (81U) - Synchronization Check Relay (25) - Voltage Regulator Relay and other secondary devices• Analyzed and evaluated the field test results and provided recommendations for future improvement.• Conducted immediate troubleshooting of malfunction electrical control circuits, protective relay errors and mis-operation. Also, recommended solutions and implemented corrective actions to prevent re-occurrence.• Reviewed and verified protection settings, protection schemes and protection coordination.• Retrieved relay fault data, relay trip events and disturbances and analyzed the results and implements solutions. Show less

• 

  Sumitomo Corporation

  Jan 2017 - now

  Electrical Engineer

  • Performed functional testing, resetting and programming of the following Power System Protective Relays: - Line Distance relay (21) - Line Differential relay (87L) - Transformer Differential Relay (87T) - Bus Differential Relay (87B) - Restricted Earth Fault Relay (87N) - Phase & Ground Directional Overcurrent Relay (67P/67N) - Phase & Ground Instantaneous Overcurrent Relay (50P/50N) - Phase & Ground Inverse Time Overcurrent Relay (51P/51N) - Over Frequency Relay (81O) - Under Frequency Relay (81U) - Over Voltage Relay (59) - Under Voltage Relay (27) - Voltage Regulators and other secondary devices• Performed tests and commissioning of the following High Voltage Equipment (HVE): - Power Transformers - Power Cables - Gas Insulated Switchgears (GIS) - Power Circuit Breakers (PCB) - Instrument Transformers (CT & VT) - Lightning Arresters and other High Voltage Equipment (HVE)• Supervised sub-contractor in implementing the electrical control wiring and installation of High Voltage Equipment.• Performed troubleshooting of malfunction electrical control circuits.• Reviewed the protection relay settings and coordination.• Reviewed as-built plans and schematic wiring diagrams and recommended corrective actions based local regulations and international standards.• Implemented final relay settings and configurations.• Conducted testing and calibration of transformer gauges such as oil thermostat, oil temperature gauge and winding temperature gauge.• Conducted troubleshooting of undesired operation of protective relays and implemented solutions and corrected actions to ensure safe and prevention from re-occurrence. Show less