29.180 - Transformers. Reactors
ICS 29.180 Details
Transformers. Reactors
Transformatoren. Drosselspulen
Transformateurs. Bobines d'inductance
Transformatorji. Dušilke
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This standard is applicable to vertical connecting terminal flags for insulated bushings with rated currents from 250 A to 4 000 A and frequencies from 15 Hz to 60 Hz for liquid immersed equipment.
- Standard13 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61558-2-9:2024 is available as IEC 61558-2-9:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-9:2024 deals with the safety of transformers for class III handlamps and power supply units incorporating transformers for class III handlamps. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) addition of a new symbol for power supply unit with linearly regulated output voltage;
c) document is not only valid for transformers for tungsten filament handlamps.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard52 pagesEnglish languagesale 15% off
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- Standard34 pagesEnglish and French languagesale 15% off
IEC 61558-2-23:2024 is available as IEC 61558-2-23:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-23:2024 deals with the safety of transformers for construction sites and power supply units incorporating transformers for construction sites. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) new symbol for power supply units with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard68 pagesEnglish languagesale 15% off
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- Standard45 pagesEnglish and French languagesale 15% off
IEC 61558-2-10:2024 is available as IEC 61558-2-10:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-10:2024 deals with the safety of separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V. Transformers incorporating electronic circuits are also covered by this document. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) overvoltage categories I, II, III and IV for clearances and dielectric strength tests are included;
c) clearances for homogenous field conditions deleted.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard61 pagesEnglish languagesale 15% off
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- Standard39 pagesEnglish and French languagesale 15% off
IEC 61558-2-8:2024 is available as IEC 61558-2-8:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-8:2024 deals with the safety of bell and chime transformers and power supply units incorporating bell and chime transformers. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard56 pagesEnglish languagesale 15% off
- Standard207 pagesEnglish languagesale 15% off
- Standard37 pagesEnglish and French languagesale 15% off
IEC 61558-2-12:2024 is available as IEC 61558-2-12:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-12:2024 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this document.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard66 pagesEnglish languagesale 15% off
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- Standard41 pagesEnglish and French languagesale 15% off
This document is applicable to vertical connecting terminal flags for insulated bushings with rated currents from 250 A to 4 000 A and frequencies from 15 Hz to 60 Hz for liquid immersed equipment.
- Standard13 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60938-2 is applicable to the drafting of detail specifications for fixed inductors
for which safety tests are required for use in electronic equipment.
- Standard20 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61558-2-16:2021 deals with the safety of switch mode power supply units and transformers for switch mode power supply units.
This second edition cancels and replaces the first edition published in 2009 and amendment 1:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
adjustment of structure and references in accordance with IEC 61558-1:2017;
definitions of different voltage characteristics;
partial discharge and description of constructions moved to IEC 61558-1:2017;
alternative method for dimensioning of clearances;
removal of requirements for homogeneous field conditions.
It has the status of a group safety publication in accordance with IEC Guide 104.
This International Standard is to be used in conjunction with IEC 61558-1:2017.
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- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-19-1:2023 defines the procedures that are applied to evaluate the uncertainty affecting the measurements of no-load and load losses during the routine tests on power transformers.
This document centres on measuring systems utilizing digital instruments, although the procedures can be adapted to evaluation of systems with analogue instruments where further uncertainty sources have to be taken into account.
This document specifies how to determine measurement uncertainty and how to apply corrections for known errors in the measurement chain. Information vis-à-vis judgement and traceability are given in IEC 60076-8:1997, 10.1 and 10.2.
- Standard52 pagesEnglish languagesale 10% offe-Library read for1 day
- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-19-1:2023 defines the procedures that are applied to evaluate the uncertainty affecting the measurements of no-load and load losses during the routine tests on power transformers. This document centres on measuring systems utilizing digital instruments, although the procedures can be adapted to evaluation of systems with analogue instruments where further uncertainty sources have to be taken into account. This document specifies how to determine measurement uncertainty and how to apply corrections for known errors in the measurement chain. Information vis-à-vis judgement and traceability are given in IEC 60076-8:1997, 10.1 and 10.2.
- Standard52 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61558-2-3:2023 is available as IEC 61558-2-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
This part of IEC 61558 deals with the safety of ignition transformers for gas and oil burners. Ignition transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017.
It has the status of a group safety publication in accordance with IEC Guide 104. The contents of the corrigendum 1 (2023-09) have been included in this copy.
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IEC 61558-2-7:2023 is available as IEC 61558-2-7:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-7:2023 deals with the safety of transformers for toys and power supply units incorporating transformers for toys. Transformers for toys incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard64 pagesEnglish languagesale 15% off
- Standard215 pagesEnglish languagesale 15% off
- Standard41 pagesEnglish and French languagesale 15% off
- Standard2 pagesEnglish and French languagesale 15% off
IEC 60076-19-1:2023 defines the procedures that are applied to evaluate the uncertainty affecting the measurements of no-load and load losses during the routine tests on power transformers.
This document centres on measuring systems utilizing digital instruments, although the procedures can be adapted to evaluation of systems with analogue instruments where further uncertainty sources have to be taken into account.
This document specifies how to determine measurement uncertainty and how to apply corrections for known errors in the measurement chain. Information vis-à-vis judgement and traceability are given in IEC 60076-8:1997, 10.1 and 10.2.
- Standard97 pagesEnglish and French languagesale 15% off
This part of IEC 60076 applies to dry type natural air-cooled resistors, for neutral grounding of
transformers and generators, in order to limit the earth fault current in power systems by means
of metallic resistive elements.
For the purposes of this document, the resistor can be:
• used alone or in combination with other electrotechnical products not covered by this
document, such as (but not limited to): a step-down single-phase transformer, an open
triangle or zig-zag transformer (where the neutral point is not available) and a Petersen coil
reactor (in order to increase active power contribution to the fault or reduce time constant
for proper protection operation or both);
• designed, manufactured and verified on a one-off basis or fully standardized and
manufactured in quantity.
Both terms "neutral grounding resistor" (NGR) and "neutral earthing resistor" (NER) can be
used. However, for the purposes of this document and in order to avoid any confusion with
"neutral earthing reactor" (NER), the term "neutral grounding resistor" (NGR) is used.
This document specifies:
• the characteristics of the NGR;
• the service conditions requirements for NGRs;
• the tests and test methods for confirming that these conditions have been met;
• the requirements relating to marking for NGRs.
Annex A provides guidance on how to consider the effect of resistance variation with
temperature.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-25:2023 applies to dry type natural air-cooled resistors, for neutral grounding of transformers and generators, in order to limit the earth fault current in power systems by means of metallic resistive elements. For the purposes of this document, the resistor can be:
used alone or in combination with other electrotechnical products not covered by this document, such as (but not limited to): a step-down single-phase transformer, an open triangle or zig-zag transformer (where the neutral point is not available) and a Petersen coil reactor (in order to increase active power contribution to the fault or reduce time constant for proper protection operation or both);
designed, manufactured and verified on a one-off basis or fully standardized and manufactured in quantity. Both terms "neutral grounding resistor" (NGR) and "neutral earthing resistor" (NER) can be used. However, for the purposes of this document and in order to avoid any confusion with "neutral earthing reactor" (NER), the term "neutral grounding resistor" (NGR) is used. This document specifies:
the characteristics of the NGR;
the service conditions requirements for NGRs;
the tests and test methods for confirming that these conditions have been met;
the requirements relating to marking for NGRs. Annex A provides guidance on how to consider the effect of resistance variation with temperature.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-25:2023 applies to dry type natural air-cooled resistors, for neutral grounding of transformers and generators, in order to limit the earth fault current in power systems by means of metallic resistive elements.
For the purposes of this document, the resistor can be:
used alone or in combination with other electrotechnical products not covered by this document, such as (but not limited to): a step-down single-phase transformer, an open triangle or zig-zag transformer (where the neutral point is not available) and a Petersen coil reactor (in order to increase active power contribution to the fault or reduce time constant for proper protection operation or both);
designed, manufactured and verified on a one-off basis or fully standardized and manufactured in quantity.
Both terms "neutral grounding resistor" (NGR) and "neutral earthing resistor" (NER) can be used. However, for the purposes of this document and in order to avoid any confusion with "neutral earthing reactor" (NER), the term "neutral grounding resistor" (NGR) is used.
This document specifies:
the characteristics of the NGR;
the service conditions requirements for NGRs;
the tests and test methods for confirming that these conditions have been met;
the requirements relating to marking for NGRs.
Annex A provides guidance on how to consider the effect of resistance variation with temperature.
- Standard46 pagesEnglish and French languagesale 15% off
IEC 62041: 2017(E) is applicable to transformers, reactors and power supply units covered by the IEC 61558 series of standards. This document deals with the electromagnetic compatibility requirements for emission and immunity within the frequency range 0 Hz to 400 GHz. No tests need to be performed at frequencies where no requirements are specified. This third edition cancels and replaces the second edition published in 2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
the inclusion of a clause on tests in series production;
the inclusion of a new clause on measurement uncertainly, and
the status of a harmonized standard for this third edition. It has the status of a product family EMC standard in accordance with IEC Guide 107:2009, Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility publications.
- Standard35 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61558-2-20:2022 is available as IEC 61558-2-20:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-20:2022 deals with the safety of small reactors for general applications. Small reactors incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adjustment of structure and references in accordance with IEC 61558-1:2017.
- additional Annex AA with references for characteristic parameter measurements.
- additional Annex BB for associated reactors with frequencies above 500 Hz.
- additional Annex CC for partial discharge.
It has the status of a group safety publication in accordance with IEC Guide 104.
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IEC 61558-2-13:2022 is available as IEC 61558-2-13:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-13:2022 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 document. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adjustment of structure and references in accordance with IEC 61558-1:2017;
- description of constructions moved to IEC 61558-1:2017;
- new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard49 pagesEnglish languagesale 15% off
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IEC 61558-2-2:2022 is available as IEC 61558-2-2:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-2:2022 deals with the safety of control transformers and power supply units incorporating control transformers. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adjustment of structure and references in accordance with IEC 61558-1:2017;
- new general symbol for control transformers;
- new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
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This document describes the special test for Medium Power Transformers ≤ 3150kVA compliant with the EN 50708 2 series:
— for corrugated tank liquid immersed transformers;
— for the method of measurement of losses for one winding in Highest Voltage (HV) and 2 windings in Lowest Voltage (LV) for liquid immersed and dry type transformer.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes a special test for tanks of liquid-immersed transformers which during service are hermetically sealed and fully filled with liquid and volume change of the liquid due to temperature change compensated by elastic deformation of the cooling element for Large Power Transformers having a rated power greater than 3150 kVA.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes lists of typical accessories used for liquid and dry type Medium Power Transformers (≤3150kVA). It defines the interface between the transformer's terminals, including cable boxes, and the power grid.
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The scope of this document is to define the energy performance of non-conventional technology Medium Power Transformers in compliance with EN 50708 1 1:2020.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes the list of typical accessories used for liquid and dry type Medium Power Transformers (≤ 3 150 kVA).
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes a special test for tanks of liquid-immersed transformers which during service are hermetically sealed and fully filled with liquid and volume change of the liquid due to temperature change compensated by elastic deformation of the cooling element for Large Power Transformers having a rated power greater than 3150 kVA.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes the special tests for Medium Power Transformers ≤ 3150 kVA compliant with the EN 50708 2 series: - for corrugated tank for liquid immersed transformers, - for the method of measurement of losses for one winding in Highest Voltage (HV) and windings in Lowest Voltage (LV) for liquid immersed and dry type transformers.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the energy performance of non-conventional technology Medium Power Transformers in compliance with EN 50708-1-1.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes a process to demonstrate compatibility between Rolling Stock (RST) and Train Detection Systems (TDS). It describes the characterization of train detection systems, rolling stock and traction power supply systems. It is worth noting that the demonstration of technical compatibility between the rolling stock and infrastructure with respect to physical dimensions is not detailed in this document. This document is not generally applicable to those combinations of rolling stock, traction power supply and train detection system which were accepted as compatible prior to the issue of this document. However, as far as is reasonably practicable, this document can be applied to modifications of rolling stock, traction power supply or train detection systems which may affect compatibility. The detailed process can be used where no rules and processes for compatibility are established.
- Standard39 pagesEnglish languagesale 10% offe-Library read for1 day
This document is applicable to ceramic insulated outdoor bushings for highest voltages for equipment of 24 kV and 36 kV, with rated currents of 5 kA and 8 kA for insulating liquid filled transformers and frequencies from 15 Hz up to 60 Hz.
This document establishes dimensions to ensure interchangeability and adequate mounting of bushings.
Two types of construction are specified, type A and type B, both types for highest voltages for equipment 24 kV and 36 kV and rated currents of 5 kA and 8 kA. The mechanical stresses of the conductor tube define the difference between type A and type B. The conductor tube of type A is axially and radially fixed in the top of the bushing. The inner line terminal of the transformer can be flexible and without any special support for the lower end of the conductor tube.
For new installations bushings of Type A are expected to be used. Type B bushings can be supplied at the request of a customer.
In case of type B, the conductor tube is only radially fixed in the top of the bushing. In that case, a rigid support is mounted to fix the lower end of the conductor tube (for example, in combination with a drip proofed sealing end). The drip proofed sealing end is often required in the service requirements. In this case, it is not possible to use type A because of the existing double fixation. Therefore, both bushing types A and B are be specified.
The condition for the usage of type B is that the drip-proof sealing end is able to withstand the mechanical stress in axial direction.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes how the concentrations of dissolved gases or free gases can be
interpreted to diagnose the condition of oil-filled electrical equipment in service and suggest
future action.
This document is applicable to electrical equipment filled with mineral insulating oil and
insulated with cellulosic paper or pressboard-based solid insulation. Information about specific
types of equipment such as transformers (power, instrument, industrial, railways, distribution),
reactors, bushings, switchgear and oil-filled cables is given only as an indication in the
application notes.
This document can be applied, but only with caution, to other liquid-solid insulating systems.
In any case, the indications obtained are given only as guidance with resulting action
undertaken only with proper engineering judgment.
- Standard42 pagesEnglish languagesale 10% offe-Library read for1 day
This document is applicable to ceramic insulated outdoor bushings for highest voltages for equipment of 24 kV and 36 kV, with rated currents of 5 kA and 8 kA for insulating liquid filled transformers and frequencies from 15 Hz up to 60 Hz. This document establishes dimensions to ensure interchangeability and adequate mounting of bushings. Two types of construction are specified, type A and type B, both types for highest voltages for equipment 24 kV and 36 kV and rated currents of 5 kA and 8 kA. The mechanical stresses of the conductor tube define the difference between type A and type B. The conductor tube of type A is axially and radially fixed in the top of the bushing. The inner line terminal of the transformer can be flexible and without any special support for the lower end of the conductor tube. For new installations bushings of Type A are expected to be used. Type B bushings can be supplied at the request of a customer. In case of type B, the conductor tube is only radially fixed in the top of the bushing. In that case, a rigid support is mounted to fix the lower end of the conductor tube (for example, in combination with a drip proofed sealing end). The drip proofed sealing end is often required in the service requirements. In this case, it is not possible to use type A because of the existing double fixation. Therefore, both bushing types A and B are specified. The condition for the usage of type B is that the drip-proof sealing end is able to withstand the mechanical stress in axial direction.
- Standard26 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes how the concentrations of dissolved gases or free gases can be interpreted to diagnose the condition of oil-filled electrical equipment in service and suggest future action. This document is applicable to electrical equipment filled with mineral insulating oil and insulated with cellulosic paper or pressboard-based solid insulation. Information about specific types of equipment such as transformers (power, instrument, industrial, railways, distribution), reactors, bushings, switchgear and oil-filled cables is given only as an indication in the application notes. This document can be applied, but only with caution, to other liquid-solid insulating systems. In any case, the indications obtained are given only as guidance with resulting action undertaken only with proper engineering judgment.
- Standard42 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-22-2:2019 applies to radiators mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to this equipment. It also outlines the operation requirements specific to this equipment as well as the preferred dimensions relevant for interchangeability and the type and routine tests to be performed. Keywords: radiators mounted on liquid immersed power transformers
- Standard28 pagesEnglish languagesale 10% offe-Library read for1 day
NEW!IEC 61558-1:2017 is available as IEC 61558-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61558-1:2017 deals with safety aspects of transformers, reactors, power supply units and combinations thereof such as electrical, thermal and mechanical safety. This document covers the following independent or associated stationary or portable types of dry-type transformers, power supply units, including switch mode power supply units, reactors and combinations thereof in the field of safety. The windings can be encapsulated or non-encapsulated. They are not forming a part of the distribution network. This third edition cancels and replaces the second edition published in 2005 and Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a. fully insulated winding wires (FIW), new tables and aging tests for FIW constructions, b. overvoltage categories 1, 2, 3 and 4 for clearances and dielectric strength tests (new tables) are included, c. development of new symbols for the different overvoltage categories, d. symbol for maximum altitudes, if higher than 2 000 m, e. symbol for plug in power supply units, if the pins are damaged (tumbling barrel test), f. symbol for minimum temperature (even during the transportation), g. alternative temperature measurement, simulated load and back to back method according to IEC 60076-11, h. short circuit and overload protection, simulated load and back to back method according to IEC 60076-11, i. adjustment of temperatures in Table 2 according to CENELEC Guide 29, j. establishing partial discharge test above 750 V for FIW constructions, k. requirements for toroidal core constructions, division for basic and for supplementary isolation, l. modification of protection indexes for enclosures (IP-code), m. dimensioning of rectangular cross section connectors for transformers, n. repetition test, 80% of required dielectric strength test voltage of Table 14,a. o. vibration test for vehicles and railway applications, p. two Y1 Capacitors for working voltages above 250 V and not exceeding 500 V with overvoltage category 3. It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard183 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60599:2022 describes how the concentrations of dissolved gases or free gases can be interpreted to diagnose the condition of oil-filled electrical equipment in service and suggest future action. This document is applicable to electrical equipment filled with mineral insulating oil and insulated with cellulosic paper or pressboard-based solid insulation. Information about specific types of equipment such as transformers (power, instrument, industrial, railways, distribution), reactors, bushings, switchgear and oil-filled cables is given only as an indication in the application notes. This document can be applied, but only with caution, to other liquid-solid insulating systems. In any case, the indications obtained are given only as guidance with resulting action undertaken only with proper engineering judgment.
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IEC 61558-2-14:2022 is available as IEC 61558-2-14:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-14:2022 deals with the safety of variable transformers for general applications and power supply units incorporating variable transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adjustment of structure and references in accordance with IEC 61558-1:2017;
- description of constructions moved to IEC 61558-1:2017;
- new symbols for power supply units with linearly regulated output voltages and required current collector position changes.
It has the status of a group safety publication in accordance with IEC Guide 104.
- Standard61 pagesEnglish languagesale 15% off
- Standard37 pagesEnglish and French languagesale 15% off
IEC 61558-2-15:2022 is available as IEC 61558-2-15:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-15:2022 deals with safety of isolating transformers for medical IT systems for the supply of medical locations. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Adjustment of structure and references in accordance with IEC 61558-1:2017.
It has the status of a group safety publication in accordance with IEC Guide 104.
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This part of IEC 60076 applies to liquid to water heat exchangers, using forced water and forced liquid circuits, used on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to this equipment. It also outlines the operation requirements specific to this equipment as well as the preferred dimensions relevant for interchangeability and the type and routine tests to be performed.
- Standard31 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60076 applies to liquid to air heat exchangers, using forced air and forced liquid circuits, used on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to this equipment. It also outlines the operation requirements specific to this equipment as well as the preferred dimensions relevant for interchangeability and the type and routine tests to be performed.
- Standard25 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60076-22-1:2019 applies to protective devices mounted on liquid-immersed power transformers in accordance with IEC 60076-1 and reactors in accordance with IEC 60076-6 with or without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to all the devices, which are relevant for the safety of the machine having a function of signalization of abnormal operating conditions. It also outlines the operation requirements specific to each device as well as, in some cases, the preferred dimensions relevant for interchangeability and the type and routine test to be performed. Keywords: protective devices mounted on liquid-immersed power transformers
- Standard76 pagesEnglish languagesale 10% offe-Library read for1 day
This document is applicable to insulated bushings, excluding those plug-in bushings specified by EN 50180 series, for use in air insulated, shroud insulated and fully insulated cable boxes for liquid filled transformers and reactors for rated voltages up to 36 kV, and rated currents up to 4 000 A at frequencies from 15 Hz to 60 Hz.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
This document applies to all power transformers in scope of TC 14.
This document provides rules for assessment of energy performance for manufacturers, suppliers and importers that for each transformer deliver the certificate and technical documentation mentioning the value measured as described in the Regulation.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This document applies to all power transformers in scope of TC 14.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60076-22 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with or without conservator for indoor or outdoor installation.
It outlines the operation requirements specific to each device as well as the data made available to the communication network and the type and routine test to be performed.
The communication network is not part of the scope of this standard.
- Standard24 pagesEnglish languagesale 10% offe-Library read for1 day