About This Role
This role ensures the reliable operational service of electrical substations for train operations and transmission distribution and traction systems. The Master Electrician inspects, tests, troubleshoots, repairs, and maintains substations, traction power supplies, overhead track equipment, and transmission lines to ensure the availability and efficient supply of electric power, supporting continuous operations of the company's electric substation and signaling systems for train running and other operational requirements.
Responsibilities
- Find and investigate electrical faults within the substation and signal supply points and fix them after thorough investigation based on approved maintenance programs or instructions from the centralized electrical control office
- Service and maintain high voltage circuit breakers (minimum and bulk oil, SF6 gas, and vacuum breakers) to detect malfunctioning and any leakages/damages, and determine resistance and load for appropriate action plan
- Service and maintain transformers (main and auxiliary) to detect malfunctioning and any leakages/damages, determine if they are in good working condition, and decide whether immediate or pre-planned action is required
- Check earthing of current and voltage transformers and the block jointing of secondary side cables to ensure they are in good working condition
- Service and maintain 3kV DC silicon diode rectifier and wave filter equipment to detect malfunctioning and any leakages/damages, and determine resistance and load for appropriate action plan
- Examine the 3Kv DC Busbar and the under-voltage relay to determine any earth leakage circuits and ensure that under-voltage relay drop out and pick up operations are correct
- Service and maintain high speed circuit breakers to ensure they are in good condition and repair any detected failures and malfunctions in accordance with sound knowledge of substation circuitry, safety, and business standards
- Service and maintain batteries and battery chargers to ensure they are in good working condition by checking connection for tightness, adjusting them accordingly where applicable, and boosting charge current in accordance with safety standards and battery ampere hour capacity
- Ensure that the equipment is regenerated by obtaining reading from the PLC microprocessor, analyzing, and rectifying faults
- Be responsible for the safe storage and control of equipment and material kept on the vehicle
- Carry out good housekeeping to ensure the working area, machinery, and tools are kept clean and tidy after all repairs and maintenance work has been completed
- Perform general administration related to the job by compiling and submitting reports to the Technical Supervisor for work performed and other related matters
- Carry out pre-trip inspection on equipment, road vehicles, road-rail vehicles, employee protective equipment, and lifting equipment to ensure that they are in good condition and usable