Page 76 - Electrical Equipment Handbook _ Troubleshooting and Maintenance

TRANSFORMER COMPONENTS AND MAINTENANCE

TRANSFORMER COMPONENTS AND MAINTENANCE 4.5

Legend for Outline Drawing (Cont.)
43. Center of gravity—shipping.
44. Warning plate—deenergized tap changer.
45. Bushing terminal connectors on HV, LV & neutral bushings are SEFCOR #SNFT-44-4B-SND
(tin plated).
46. Liquid cover mark ( ).
47. Thermal load gauge center. (See wiring diagram.)
Notes:
- [Bracketed] Items in legend are removed for shipping.
- Oil is removed for shipping.
Transformer rating data Estimaed mass of components
Oil-filled transformer Core & windings 44,855 lb
3-phase 60 Hz 55°/65°C rise Tank & fittings 24,257 lb
Type: OA / FA / FA Removable pads 9,353 lb
MVA: 18 / 24 / 30 U.S. Gal.
H.V. - 67000 delta Liquid (trans) 4969 36,111 lb
L.V. - 12470 wye Liquid (rads) 492 3,574 lb
Tank characteristics Liquid (LTC) 280 2,032 lb
Tank strength: ±14.7 P.S.I. Total liquid 5741 41,717 lb
Tank size: 73 145 133-1/2" Total mass 120,183 lb
Paint: ANSI 70 gray Shipping mass 72,000 lb
FIGURE 4.2 (Continued) Transformer outline drawing, Los Medanos Energy Center (Courtesy
of VA Tech Ferranti-Packard Transformers.)

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