City Of Manassas - VA
241/40 MVA , 230- 13. 2 KV Transformer Bushing Repalcment - Work Scope: 1. Perform pre- work external inspection of the transformer. 2. Perform pre- work electrical testing consisting of: Doble Power Factor ( Windings, Bushings and Arresters), Doble Excitation in as- found DETC tap position, TTR in as- found DETC tap position, Insulation resistance ( Windings and core), and Winding Resistance in as- found DETC tap position. 3. Perform pre- work oil tests consisting of Liquid Screen, Moisture and Dissolved
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