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Defines methods by which sound levels of transformers, react ors and their associated cooling plant shall be measured in the manufacturer's works so that compliance with any specifi cation requirements may be confirmed and the characteristic of the noise emitted in service determined. The...
Terminology and procedure applicable to the entire family of inductor and transformer cores for telecommunications.
Provides a guide for handling, maintaining, reconditioning and assessing quality of silicone liquids in transformers rated up to 35 kV.
EN 50216-12 deals with fans for oil-to-air coolers used for transformers as well as fans used for blowing out radiators. Only fans operating axially are dealt with in this standard specification. This standard specification defines the dimensions and requirements for ensuring fan...
Lists the procedures to be used in the quality assessment of inductor and transformer cores for telecommunications, and the tests and measuring methods which may be selected by the appropriate sectional and blank detail specifications for these components. Also prescribes the rules for...
This Standard specifies the watt-hour meters for general use, namely, normal watt-hour meters, precision watt-hour meters, special precision watt-hour meters, precision watt-hour meters for summation measurement of multi circuits of the current composing system, transmitter-incorpor
This sectional specification prescribes the characteristics, ratings and inspection requirements of assessed quality for ring cores made of soft magnetic oxides and iron powders. Such cores are intended for chokes for interference suppression and also for low level signal transformers for...
Selects from the generic specification BS 9925-0, and from the basic specification BS 5938-1, the appropriate methods of test to be used in detail specifications for magnetic oxide cores intended for use in inductors and tuned transformers. Lists the ratings and characteristics and specifies...
This part of IEC 61558 deals with the safety of shaver transformers, power supply units incorporating a shaver transformer, and shaver supply units. Shaver transformers incorporating electronic circuits are also covered by this standard. NOTE 1 Safety includes electrical,...
This European Standard is applicable to specify the requirements for the design and erection of earthing systems of electrical installations, in systems with nominal voltage above 1 kV a.c. and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use...
EN 50216-10 describes oil-to-air heat exchangers that means a heat exchanger for the cooling of the transformer oil using a forced oil circuit and a forced air circuit.The oil-to-air heat exchangers are not included in the scope of the Pressure Equipment Directive 97/23/EC according to...
This part of IEC 60076 applies to three-phase and single-phase power transformers (including auto-transformers) with the exception of certain categories of small and special transformers such as: - single-phase transformers with rated power less than 1 kVA and...
This standard specifies a method of measuring the turns ratio of a transformer used in a coupler. This method allows also for verification of the input and output voltage phase. It shall be used together with EN 2591-100.
This part of IEC 60076 applies to dry-type power transformers (including auto-transformers) having values of highest voltage for epuipment up to and including 36 kV and at least one winding operating at greater than 1,1 kV. The standard applies to all construction technologies. This...
EN 50216-9 deals with oil-to-water heat exchangers that means a heat exchanger for the cooling of the transformer oil using a forced oil circuit and a forced water circuit.The oil-side of the oil-to-water heat exchangers is not included in the scope of the Pressure Equipment Directive...
This part of IEC 61869 is a product standard and covers only additional requirements for lowpower passive current transformers. The product standard for low-power passive current transformers comprises IEC 61869-1, together with IEC 61869-6 and this document with specific requirements...
This part of IEC 61869 is a product standard and covers only additional requirements for lowpower passive current transformers. The product standard for low-power passive current transformers comprises IEC 61869-1, together with IEC 61869-6 and this document with specific requirements...
This part of 61558 deals with safety aspects of control transformers and power supplies incorporating control transformers such as electrical, thermal and mechanical safety. This Part 2-2 is applicable to control transformers and power supplies...
This standard applies to the following types of reactors: . shunt reactors; . series reactors including current-limiting reactors, neutral-earthing reactors, power flow control reactors, motor starting reactors, arc-furnace series reactors; . filter (tuning) reactors; . capacitor damping...
Replacement: This part of IEC 61558 deals with the safety of auto transformers for general applications and power supply units incorporating auto transformers for general applications. Transformers incorporating electronic circuits are also covered by this standard. NOTE 1...
