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ANSI C57.12.13 - Conformance Requirements for Liquid-Filled Transformers Used in Unit Installations, Including Unit Substations
January 1, 1982 - ANSI

This standard covers conformance tests and requirements for liquid-filled transformers. Such transformers may be remotely or integrally associated with either primary and secondary switchgear or substations, or both, and rated not greater than 2500 kVA, with voltages not exceeding 38 kV...

A-A-59915 - CONVERTER, FREQUENCY, ELECTRONIC, SOLID-STATE 25 kVA, 400 Hz
September 27, 2017 - NPFC

This CID describes a 25 kilovolt-ampere (kVA), solid-state, frequency converter, herein referred to as the SSFC. The SSFC has a 115/200 volt, 400 Hertz (Hz) output rating to provide power for various aircraft maintenance tasks as commonly encountered in avionics backshop environments.

ANSI C50.15 - Rotating Electrical Machinery - Hydrogen-Cooled, Combustion-Gas-Turbine-Driven, Cylindrical-Rotor Synchronous Generators - Requirements
January 1, 1989 - ANSI

The requirements in this standard apply to the 60-Hz, hydrogen-cooled, cylindrical-rotor synchronous generators, rated 10 000 kVA and above, and driven by combustion gas turbines. All requirements and definitions, except as specifically covered in this standard, shall be in accordance with...

ANSI C57.12.20 - Overhead-Type Distribution Transformers 500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
September 28, 2017 - IEEE

This standard covers certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase. 60 Kz. liquid-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below, and low voltages 7970 13...

ANSI C50.12 - Requirements for Salient-Pole Synchronous Generators and Generator/Motors for Hydraulic Turbine Applications
January 1, 1982 - ANSI

The requirements in this standard apply to all types of 60-hertz salient-pole synchronous generators and generator motors rated 5000 kVA (kilovolt amperes) and above to be used for hydraulic turbine or hydraulic pump turbine applications. Definitions, characteristics, and test methods not...

IEEE 1020 - Guide for Control of Small (100 kVA to 5 MVA) Hydroelectric Power Plants
December 7, 2011 - IEEE

This guide describes the electrical control and monitoring requirements for equipment and systems associated with small (100 kVA to 5 MVA) hydroelectric power pl

ANSI C57.12.24 - Submersible, Three-Phase Transformers, 3750 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below
June 17, 2009 - IEEE

This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and safety of the equipment described, and to assist in the proper selection of such equipment. This standard describes certain electrical and mechanical...

DIN 14685-3 - Firefighting and fire protection - Portable generator - Part 3: Generating set with inverter ≤ 2 kVA
May 1, 2017 - DIN

Anwendungsbereich Die Festlegungen dieser Norm gelten für tragbare Stromerzeuger mit Inverter bis 2 kVA, welche bei Feuerwehren und anderen Hilfsorganisationen für den netzunabhängigen Einsatz eines elektrischen Verbrauchsmittels verwendet werden.

IEEE C57.21 - Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA
March 27, 2008 - IEEE

(This Foreword is not a part of IEEE C57.21-1990, IEEE Standard Requirements, Terminology, and Test Code for Shun Reactors Rated Over 500 kVA.) The Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 501 kVA, C57.21, was first issued as a separate standard...

ANSI C12.6 - Phase-Shifting Devices Used In Metering, Marking and Arrangement of Terminals
January 1, 1987 - NEMA

This specification applies to phase-shifting devices designed to provide the proper lagged voltages required for kvar and kVA measurement.

ANSI C57.12.50 - 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
January 1, 1981 - IEEE

Foreword (This Foreword is not a part of 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, ANSI C57.12...

ANSI C57.12.40 - Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/ 19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
December 7, 2011 - IEEE

This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of three-phase, 60-Hz, liquid-immersed, self-cooled, network transformers with a primary grounding switch. These transformers are rated 2500 kVA and below...

ANSI C37.121 - American National Standard for Switchgear— Unit Substations— Requirements
June 5, 1989 - IEEE

Foreword (This Foreword is not part of American National Standard C37.121-1989.) This new standard has been developed to outline the requirements for unit substations, utilizing other documents such as NEMA 201 covering primary substations, NEMA 210 covering secondary unit substations, and a draft...

IEEE C57.150 - Guide for the Transportation of Transformers and Reactors Rated 10 000 kVA or Higher
December 5, 2012 - IEEE

This guide provides recommendations and considerations for the transportation of transformers and reactors rated 10 000 kVA or higher. It provides information for minimizing the risk of damage and delays in the moving of transformers and reactors regarding their design, shipment preparation,...

CEI EN 50541-1 - Three phase dry-type distribution transformers 50 Hz, from 100 to 3150 kVA, with highest voltage for equipment not exceeding 36 kV Part 1: General requirements
November 1, 2011 - CEI

La presente Norma si applica a trasformatori trifase di distribuzione di tipo a secco con frequenza di 50 Hz, da 100 kVA a 3150 kVA e con una tensione massima per il componente non superiore a 36 kV. Essa fornisce le prescrizioni generali. La presente Norma sostituisce le Norme CEI...

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