ANSI C57.12.13 : 1982
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
LIQUID-FILLED TRANSFORMERS USED IN UNIT INSTALLATIONS INCLUDING UNIT SUBSTATIONS, CONFORMANCE STANDARD FOR
28-04-2023
12-01-2013
Applies to liquid filled transformers associated with switchgear or sub stations, less than 2500 kVA. Voltages less than 28 KV(35 kV class). Insulating liquids normally limited by ANSI/IEEE C57.12.00-1980. Not covered: (1) Overhead type distribution type, including surface mounted. (2) Pad mounted compartmental type as in: ANSI C57.12.21-1980, ANSI C57.12.22- 1980, ANSI C57.12.25-1981, ANSI C57.12.26-1975 (3) Subsurface as in ANSI C57.12.23-1978, ANSI C57.12.24-1982, Types: (4) Rectifier (5)Mobile,Those in: (6)Ships, railway rolling stock, aircraft,and automotive vehicles not mobile home and recreational vehicles (7)Miles,(8)Railways,(9)Instrument transformers,(10)Step voltage, induction voltage regulators (11)Arc Furnace (12)For communication utilities,(13)Transformers under control of electric utilities.
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