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IEEE 421B - HIGH-POTENTIAL-TEST REQUIREMENTS FOR EXCITATION SYSTEMS FOR SYNCHRONOUS MACHINES
Description: This standard supplements existing standards for components used on excitation systems: ANSI C19.3-1973, Industrial Control Apparatus - General; ANSI C19.4-1973, Industrial Control Apparatus - Enclosures; ANSI C19.5-1973, Industrial Control Apparatus - Switching or Controlling Devices; ANSI C19.6-1973, Industrial Control Apparatus - Control-Circuit Devices and Assemblies; ANSI C19.7-1973, Industrial Control Apparatus - Controllers and Controller Assemblies; ANSI C34.2-1968 (R1973), Practices and Requirements for Semiconductor Power Rectifiers; ANSI C37.18-1968 (R1975), Requirements for Field Discharge Circuit Breakers for Rotating Electric Machinery; ANSI/IEEE C57.12.00-197 3, General Requirements for Distribution, Power, and Regulating Transformers; ANSI/IEEE C57.12.90-1973, Test Code for Distribution, Power, and Regulating Transformers; and NEMA ICs1970 (R1975), Industrial Controls and Systems.
NECA NEIS 410 - STANDARD FOR INSTALLING AND MAINTAINING LIQUID-FILLED TRANSFORMERS
Description: Specialty transformers such as control, industrial control, instrument, current, potential, metering, buck-boost transformers, or lighting and ballast transformers 3.
UL 283 - UL STANDARDS FOR SAFETY AIR FRESHENERS AND DEODORIZERS - THIRD EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING DECEMBER 16, 2016
Description: Electric toy transformers are covered by the Standard for Toy Transformers, UL 697.
IEST - RP-DTE011.1 - MECHANICAL SHOCK AND VIBRATION TRANSDUCER
Description: Also, displacement sensors, such as linear variable differential transformer (LVDT) displacement transducers, tend to be large, heavy, and limited to frequencies below 500 Hz.
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