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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...
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.
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...
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...
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...
This guide describes the electrical control and monitoring requirements for equipment and systems associated with small (100 kVA to 5 MVA) hydroelectric power pl
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...
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.
(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...
This specification applies to phase-shifting devices designed to provide the proper lagged voltages required for kvar and kVA measurement.
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...
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...
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...
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,...
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...
