 Operation and maintenance including design experience in industrial HVAC system (70 ton), Cooling load, duct lines, heat exchangers, de-humidification, ventilation, compressor units, chiller, system cooling apparatus (cooling towers, radiators).  Operation and maintenance work experience different types of heavy industrial machineries, mechanical power transmission systems (Gear trains, belt drives, chain drives).  Operation and maintenance work experience in high voltage power transmission lines (230kv, 132kv, 33kv), grid sub-station outdoor and indoor type (132/33kv and 33/11kv), protection systems (analog, related to power XF and line), circuit breakers 33kv and 11kv (SF6, vacuum, oil), distribution systems (11kv and 0.4kv), network managements, load dispatch managements, gas fired combined cycle power station (30x2MW GT + 27x1MW ST). Hydro Power Station (45x2MW, 50x3MW). Having many experiences of complex situation in load management. Under ground cable faults, line faults, sub-station problems & tripped off power station.