Objective: Installation & commissioning of 2 x 20/40MVA, 33/11.5kV transformers
Scope of Work
Manufacture and testing of 2 x 15/30MVA, 33/11.5kV, ONAN/ONAF power transformers.
Full in-house routine, lightning impulse, noise, zero sequence, temperature rise, and partial discharge testing.
Delivery, off-loading, assembly of cooler bank, radiators, fans & conservators on-site.
Full commissioning works as per the customers specification which includes; insulation resistance of each winding, core & secondary circuits, transformer ratio check, vector group check by 3 phase low voltage energization of transformer, checks on all CTs & VTs for insulation resistance, ratio & magnetization curves, operation of tapchanger through range & operation of limit switches, operation of protection equipment, oil sampling for routine, water & dissolve gas analysis.