Main Transformer Clause Samples

Main Transformer. Number of main transformers:   a) Rating (ONAN/ONAF/ONAF):   /   /   MVA b) Nominal Voltage for each winding (High/Low):   /   kV c) Winding Connections (High/Low): [] / [] d) Available tap positions:   /   /   /   /   kV or   %   # of taps. e) Positive sequence impedance Z1:   %,   X/R on self-cooled (ONAN) MVA rating above. f) Zero sequence impedance Z0:   %,   X/R on self-cooled (ONAN) MVA rating above. g) For pad-mounted transformer, construction: h) Connection and winding (please attach diagram and mark to reference this form). H Winding Data X Winding Data Y Winding Data Full load ratings (i.e. ONAN/ONAF/ONAF)  / /  MVA  / /  MVA  / /  MVA Rated voltage base   kV connected   kV connected   kV connected Tap positions available   /   /   /   /   kV   /   /   /   /   kV   /   /   /   /   kV Present Tap Setting (if applicable)   kV   kV   kV Neutral solidly grounded? (or) Neutral Grounding Resistor (if applicable)     Ohms     Ohms     Ohms BIL rating   kV   kV   kV Transformer base for impedances provided   MVA   MVA   MVA Positive sequence impedance Z1   %   X/R   %   X/R   %   X/R Zero sequence impedance Z0   %   X/R   %   X/R   %   X/R