TDS PDF
IEEE Standard Test Procedure for Evaluation of Systems of Insulating Materials for Random-Wound AC Electric Machinery Original standard ANSI C50.32-1976 (1992) in PDF full version. Additional info + preview on request
Document status: Active
American National Standard Conformance Requirements for Liquid-Filled Transformers Used in Unit Installations, Including Unit Substations Original standard ANSI C57.12.13-1982 in PDF full version. Additional info + preview on request
Document status: Active
American National Standard Requirements for Pad-Mounted, Compartmental-Type Self-Cooled, Single-Phase Distribution Transformers with High Voltage Bushings; High-Voltage, 34500 GRYD 19920 Volts and Below; Low-Voltage, 240 120 Volts; 167 kVA and Smaller Original standard ANSI C57.12.21-1992 in PDF full version. Additional info + preview on request
Document status: Active
American National Standard for Transformers - Pad-Mounted, Compartmental-Type, Self-Cooled Three-Phase Distribution Transformers with High-Voltage Bushings, 2500 kVA and Smaller - High Voltage, 34 500 Grd Y 19 920 Volts and Below; Low Voltage, 480 Volts and Below Original standard ANSI C57.12.22-1993 (1998) in PDF full version. Additional info + preview on request
Document status: Active
American National Standard for Transformers — Pad-Mounted, Compartmental-Type, Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 240/120 Volts; 167 kVA and Smaller — Requirements Original standard ANSI C57.12.25-1990 in PDF full version. Additional info + preview on request
Document status: Withdrawn
American National Standard Requirements for Ventilated Dry-Type Distribution Transformers, 1 to 500 kVA, Single-Phase, and 15 to 500 kVA, Three-Phase, with High-Voltage 601 to 34 500 Volts, Low-Voltage 120 to 600 Volts Original standard ANSI C57.12.50-1981 (1998) in PDF full version. Additional info + preview on request
Document status: Withdrawn