COMMISSION REGULATION (EU) No /.. of XXX
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1 EUROPEAN COMMISSION Brussels, XXX [ ](2013) XXX draft COMMISSION REGULATION (EU) No /.. of XXX on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers EN EN
2 COMMISSION REGULATION (EU) No /.. of XXX on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers THE EUROPEAN COMMISSION, Having regard to the Treaty on the Functioning of the European Union, Having regard to Directive 2009/125/EC of the European Parliament and of the Council of 21 October 2009 establishing a framework for the setting of ecodesign requirements for energyrelated products ( 1 ) and in particular Article 15(1) thereof, After consulting the Ecodesign Consultation Forum, Whereas: (1) The Commission has carried out a preparatory study that analysed the environmental and economic aspects of transformers. The study was developed together with stakeholders and interested parties from the Community and the results have been have made publicly available. Transformers are considered as energy related products within the meaning of Article 2 (1) of Directive 2009/125/EC. (2) The study showed that energy in the use phase is the most significant environmental aspect that can be addressed through product design. Significant amounts of raw materials (copper, iron, resin, aluminium) are used in the manufacturing of transformers, but market mechanisms seem to be ensuring an adequate end-of-life treatment, and therefore it is not necessary to establish related ecodesign requirements. (3) Ecodesign requirements set out in Annex I apply to products placed on the market or put into service wherever they are installed. Therefore such requirements cannot be made dependant on the application in which the product is used. (4) Certain categories of transformers should not be covered by this Regulation, due to their specific function, transport or installation restrictions.. The energy consumption and saving potential of such transformers is negligible compared to other transformers. (5) Regulatory concessions are granted because of the weight limitations for mounting transformers on utility poles. In order to avoid misuse of transformers specifically manufactured for pole-mounted operation, they should include a visible display For pole-mounted operation only, so as to facilitate the work of national market surveillance authorities. (6) Regulatory concessions are granted to transformers equipped with equipment capable of performing voltage regulation functions to integrate distributed generation from renewable sources into the distribution grid. Such concessions should gradually be phased out as this emerging technology matures and measurement standards become available to separate the losses associated to the core transformer from those associated to the equipment performing additional functions. EN 2 EN
3 (7) Ecodesign requirements for the energy performance/efficiency of medium power transformers and for the energy efficiency of large power transformers should be set with a view to harmonising ecodesign requirements for these devices throughout the Community. Such requirements would also contribute to the efficient functioning of the internal market and to improving Member States environmental performance. (8) Establishment of ecodesign requirements for medium and large power transformers is also necessary to increase the market penetration of technologies and design options improving their energy performance/efficiency.. Total losses of the transformers fleet in the EU27 in 2008 amounted to 93.4 TWh per year. The costeffective improvement potential through more efficient design has been estimated in about 16.2 TWh per year in 2025, which corresponds to 3.7 Mt of C02 emissions. (9) It is necessary to provide for a staged entry into force of the ecodesign requirements in order to provide an appropriate timeframe for manufacturers to redesign their products. Time limits for the implementation of those requirements should be set taking into account impacts on the costs for manufacturers, in particular small and medium size enterprises, while ensuring timely achievement of the policy objectives. (10) To allow an effective implementation of the regulation, National Regulating Authorities are advised to take account of the effect of minimum efficiency requirements on the initial cost of the transformer and to allow for more efficient transformers than the regulation requires if these are economically justified on a whole life cycle basis. (11) To facilitate compliance checks, manufacturers should be asked to provide information in the technical documentation referred to in Annexes IV and V to Directive 2009/125/EC. (12) The measures provided for in this Regulation are in accordance with the opinion of the Committee established by Article 19(1) of Directive 2009/125/EC. HAS ADOPTED THIS REGULATION: Article 1 Subject matter and scope 1. This Regulation establishes ecodesign requirements for placing on the market or putting into service transformers with a minimum power rating of 1 kva used in 50Hz electricity transmission and distribution networks or for industrial applications. The regulation is only applicable to transformers purchased after the entry into force of the Regulation. 2. This Regulation shall not apply to transformers specifically designed and used for the following applications: Instrument transformers, specifically designed to supply measuring instruments, meters, relays and other similar apparatus Transformers with low voltage windings specifically designed for use with rectifiers to provide a DC supply Transformers specifically designed to be directly connected to a furnace EN 3 EN
4 Transformers specifically designed for offshore applications and floating offshore applications Transformers specially designed for emergency mobile installations Transformers and auto-transformers specifically designed for 16.7 Hz railway feeding systems Auto-transformers for 50 Hz railway feeding systems Earthing or grounding transformers, this is, three-phase transformers intended to provide a neutral point for system grounding purposes Traction transformers mounted on rolling stock, this is, transformers connected to an AC or DC contact line, directly or through a converter, used in fixed installations of railway applications Starting transformers, specifically designed for starting three-phase induction motors so as to eliminate supply voltage dips Testing transformers, specifically designed to be used in a circuit to produce a specific voltage or current for the purpose of testing electrical equipment Welding transformers, specifically designed for use in arc welding equipment or resistance welding equipment Transformers specifically designed for explosion-proof and underground mining applications Transformers specifically designed for deep water (submerged) applications Medium Voltage (MV) to Medium Voltage (MV) interface transformers up to 5 MVA Large power transformers where it is demonstrated that for a particular application, technically feasible alternatives are not available or where the minimum efficiency required by this Regulation cannot be achieved without entailing disproportionate costs associated to its transportation and/or installation. Article 2 Definitions For the purpose of this Regulation and its annexes the following definitions shall apply. (1) Power transformer means a static piece of apparatus with two or more windings which, by electromagnetic induction, transforms a system of alternating voltage and current into another system of alternating voltage and current usually of different values and at the same frequency for the purpose of transmitting electrical power. (2) Small power transformer means a power transformer with a highest voltage for equipment not exceeding 1 kv. (3) Medium power transformer means a power transformer with a high voltage for equipment higher than 1 kv, but not exceeding 36 kv and a rated power equal or higher than 5 kva but lower than 40 MVA. (4) Large power transformer means a power transformer with a high voltage for equipment exceeding 36 kv and a rated power equal or higher than 5 MVA. EN 4 EN
5 (5) Liquid-immersed transformer means a power transformer in which the magnetic circuit and windings are immersed in liquid. (6) Dry-type transformer means a power transformer in which the magnetic circuit and windings are not immersed in an insulating liquid. (7) Pole mounted transformer means a power transformer suitable for outdoor service and designed to be mounted on the support structures of overhead power lines. (8) Voltage Regulation Distribution Transformer means a medium power transformer equipped with additional components, inside or outside of the transformer tank, to automatically control the input or output voltage of the transformer for on-load voltage regulation purposes. (9) Winding refers to the assembly of turns forming an electrical circuit associated with one of the voltages assigned to the transformer. (10) Rated voltage of a winding (U r ) is the voltage assigned to be applied, or developed at no-load, between the terminals of an untapped winding, or of a tapped winding connected on the principal tapping. (11) High-voltage winding refers to the winding having the highest rated voltage. (12) Rated power (Sr) is a conventional value of apparent power assigned to a winding which, together with the rated voltage of the winding, determines its rated current. (13) Load loss (Pk) means the absorbed active power at rated frequency and reference temperature associated with a pair of windings when the rated current (tapping current) is flowing through the line terminal(s) of one of the windings and the terminals of the other windings are in short-circuit with any winding fitted with tappings connected to its principal tapping, while further windings, if existing, are open-circuited. (14) No load loss (Po) means the active power absorbed at rated frequency when the transformer is energised and the secondary circuit is open. Peak Efficiency Index (PEI) means the maximum value of the ratio of the transmitted apparent power of a transformer minus the electrical losses to the transmitted apparent power of the transformer. Article 3 Eco-design requirements Small power transformers, medium power transformers and large power transformer shall meet the ecodesign requirements set out in Annex I. Article 4 Form of the Implementing measure The Commission intends to propose a directly applicable Implementing Regulation under Directive 2009/125/EC. The proposed Regulation is not expected to have a particular impact on the EU acquis. There are no overlaps with other Ecodesign regulations, as far as is known. Article 5 Conformity Assessment Conformity assessment shall be carried out applying the internal design control procedure set out in Annex IV to Directive 2009/125/EC or the management system procedure set out in Annex V to that Directive. EN 5 EN
6 Article 6 Verification procedure for market surveillance purposes When performing the market surveillance checks referred to in Directive 2009/125/EC, Chapter 3 (2), Member State authorities shall apply the verification procedure set out in Annex III to this Regulation. Article 7 Review No later than three years after the entry into force of the requirements for Tier 1 set out in Annex I of this Regulation, the Commission shall review them in the light of technological progress and present the results of this review to the Consultation Forum. Specifically, the review will consider, at least, the following issues: The appropriateness of the levels set for the specific Ecodesign requirements in Tier 2 and the need to establish further Tiers for any type of transformers in the light of market trends The availability of the materials necessary to meet such requirements The possibility to set out minimum values of the Peak Efficiency Index for all medium power transformers, including those with a rated power below 3150 kva The possibility to separate the losses associated to the core transformer from those associated with other components performing voltage regulation functions, where this is the case The appropriateness of establishing minimum performance requirements for singlephase transformers, as well as for small power transformers Whether concessions made for pole-mounted transformers and for special combinations of winding voltages for medium power transformers are still appropriate The possibility of covering environmental impacts other than energy in the use phase Article 8 Entry into force The Regulation shall enter into force on the 20 th day following its publication in the Official Journal of the European Union. The requirements set out in Annex I shall apply in accordance with the timetable provided for therein. This Regulation shall be binding in its entirety and directly applicable in all Member States. Done at Brussels, For the Commission The President EN 6 EN
7 ANNEX I Ecodesign requirements 1) Minimum energy performance or efficiency requirements for medium power transformers Medium power transformers shall comply with the maximum allowed load and no-load losses or the Peak Efficiency Index (PEI) values set out in Tables I.1 to I ) Requirements for three-phase medium power transformers with rated power 3150kVA Table I.1: Maximum load and no-load losses for three-phase liquid-immersed medium power transformers with the high-voltage winding rated 24 kv and the other winding rated 1.1kV Tier 1 (from 1 July 2015) Tier 2 (from 1 July 2021) RATED POWER (kva) Maximum load losses Pk (in Watts) * Maximum noload losses Po (in Watts)* Maximum load losses Pk (inwatts)* Maximum noload losses Po (in Watts)* 25 Ck (900) Ao(70) Ak(600) Ao-10% (63) 50 Ck (1100) Ao(90) Ak(750) Ao-10%(81) 100 Ck (1750) Ao(145) Ak(1250) Ao-10%(130) 160 Ck (2350) Ao(210) Ak(1750) Ao-10%(189) 250 Ck (3250) Ao(300) Ak(2350) Ao-10%(270) 315 Ck (3900) Ao(360) Ak(2800) Ao-10%(324) 400 Ck (4600) Ao(430) Ak(3250) Ao-10%(387) 500 Ck (5500) Ao(510) Ak(3900) Ao-10%(459) 630 Ck (6500) Ao(600) Ak(4600) Ao-10%(540) 800 Ck (8400) Ao(650) Ak(6000) Ao-10%(585) 1000 Ck (10500) Ao(770) Ak(7600) Ao-10% (693) 1250 Bk (11000) Ao(950) Ak(9500) Ao-10%(855) 1600 Bk(14000) Ao(1200) Ak(12000) Ao-10%(1080) 2000 Bk (18000) Ao(1450) Ak(15000) Ao-10%(1305) 2500 Bk (22000) Ao(1750) Ak(18500) Ao-10%(1575) 3150 Bk (27500) Ao(2200) Ak(23000) Ao-10%(1980) EN 7 EN
8 *Maximum losses for kva ratings that fall in between the ratings given in Table I.1 shall be obtained by linear interpolation. Table I.2: Maximum load and no-load losses for three phase dry-type medium power transformers with the high-voltage winding rated 24 kv and the other winding rated 1.1kV Tier 1 (1 July 2015) Tier 2 (1 July 2021) RATED POWER (kva) Maximum load losses Pk (in Watts)* Maximum noload losses Po (in Watts)* Maximum load losses Pk (in Watts)* Maximum noload losses Po (in Watts)* 50 Bk (1700) Ao(200) Ak(1500) Ao-10%(180) 100 Bk (2050) Ao(280) Ak(1800) Ao-10%(252) 160 Bk (2900) Ao(400) Ak(2600) Ao-10%(360) 250 Bk (3800) Ao(520) Ak(3400) Ao-10%(468) 400 Bk (5500) Ao(750) Ak(4500) Ao-10%(675) 630 Bk (7600) Ao(1100) Ak(7100) Ao-10%(990) 800 Ak (8000) Ao(1300) Ak(8000) Ao-10%(1170) 1000 Ak (9000) Ao(1550) Ak(9000) Ao-10%(1395) 1250 Ak (11000) Ao(1800) Ak(11000) Ao-10%(1620) 1600 Ak (13000) Ao(2200) Ak(13000) Ao-10%(1980) 2000 Ak (16000) Ao(2600) Ak(16000) Ao-10%(2340) 2500 Ak (19000) Ao(3100) Ak(19000) Ao-10%(2790) 3150 Ak (22000) Ao(3800) Ak(22000) Ao-10%(3420) *Maximum losses for kva ratings that fall in between the ratings given in Table I.2 shall be obtained by linear interpolation. Table I.3: Correction of load and no load losses in case of other combinations of winding voltages or dual voltage in one or both windings (rated power 3150kVA) One winding with Um 24 kv and the other with Um > 1.1 kv One winding with Um = 36 kv and the other with Um 1.1 kv The maximum allowable losses in Tables I.1 and I.2 can be increased by 10% for no load losses and by 10% for load losses The maximum allowable losses in Tables I.1 and I.2 can be increased by 15% for no load losses and by 10% for load losses EN 8 EN
9 One winding with Um = 36 kv and the other with Um > 1.1 kv Case of dual voltage on one winding The maximum allowable losses indicated in Tables I.1 and I.2 can be increased by 20% for no load losses and by 15% for load losses In case of transformers with one MV (Medium Voltage) winding and two voltages available from a tapped LV (Low Voltage) winding, losses shall be calculated based on the higher LV voltage and shall be in compliance with the maximum allowable losses in Tables I.1 and 1.2. The maximum available power on the lower LV winding on such transformers shall be limited to 0.85 of its nominal rated power. If the full nominal power is available regardless of the combination of voltages, the levels of losses indicated in Tables I.1 and I.2 can be increased by 15% for no load losses and by 10% for load losses. In case of transformers with one MV winding with two voltages available from a tap, the maximum available power on the lower MV voltage on such transformer shall be limited to 0.85 of its nominal rated power. Case of dual voltage on both windings The maximum allowable losses in Tables I.1 and I.2 can be increased by 20% for no load losses and by 20% for load losses for transformers with dual voltage on both windings. The level of losses is given on the basis that the rated power is the same regardless of the combination of voltages. 1.2) Requirements for medium power transformers with rated power >3150kVA Table I.4: Minimum Peak Efficiency Index (PEI) values for liquid immersed medium power transformers RATED POWER (kva) Tier 1 ( ) Tier 2 ( ) Minimum Peak Efficiency Index (%) EN 9 EN
10 Minimum PEI values for kva ratings that fall in between the ratings given in Table I.4 shall be calculated by linear interpolation Table I.5: Minimum Peak Efficiency Index (PEI) values for dry type medium power transformers RATED POWER (kva) Tier 1 ( ) Tier 2 ( ) Minimum Peak Efficiency Index (%) Minimum PEI values for kva ratings that fall in between the ratings given in Table I.5 shall be calculated by linear interpolation 1.3) Requirements for medium power transformers with rated power 3150kVA equipped with tapping connections suitable for operation while being energised or onload for voltage adaptation purposes. Voltage Regulation Distribution Transformers are included in this category. The maximum allowable levels of losses set out in Tables I.1 and I.2 of this Annex I can be increased by 20% for no load losses and 5% for load losses in Tier 1 and by 10% for no load losses in Tier ) Requirements for medium power pole-mounted transformers The levels of load and no load losses indicated in Tables I.1 and I.2 are not applicable to polemounted transformers with power ratings between 25 kva and 160 kva. For these specific models of medium power pole-mounted transformers, the maximum levels of allowable losses are set out in Table I.6. Table I.6 Maximum load and no-load losses for medium power pole-mounted transformers Tier 1 ( ) Tier 2 ( ) Um (kva) Maximum load losses (in Watts) * Maximum noload losses (in Watts)* Maximum load losses (in Watts)* Maximum no-load losses (in Watts)* EN 10 EN
11 25 Ck (900) Ao (70) Bk (725) Ao (70) 50 Ck (1100) Ao (90) Bk (875) Ao (90) 100 Ck (1750) Ao (145) Bk (1250) Ao (145) 160 Ck+32% (3102) Co (300) Ck+32% (3102) Co-10% (270) *Maximum allowable losses for kva ratings that fall in between the ratings given in Table I.6 shall be obtained by linear interpolation 2) Minimum energy efficiency requirements for large power transformers The minimum efficiency requirements for large power transformers are set out in Table I.7 Table I.7 Minimum Peak Efficiency Index requirements for large power transformers RATED POWER (MVA) Tier 1 ( ) Tier 2 ( ) Minimum Peak Efficiency Index (%) EN 11 EN
12 3) Product information requirements From 1 July 2015, the following product information requirements shall apply: Information on rated power, load loss and no-load loss and the electrical power of any cooling system required at no load shall be included in any related product documentation, as well as on the transformer s rating plate. For medium power (where applicable) and large power transformers, the value of the Peak Efficiency Index and the power at which it occurs shall be included in the product documentation and marked on the rating plate. Information on the weight of all the main components of a transformer (including the conductor, the nature of the conductor and the core material) shall be included in any related product documentation. Pole mounted distribution transformers shall have their application mentioned in any related product documentation and shall include the ISO caution mark to read their documentation. EN 12 EN
13 Measurement method Annex II Measurement and calculation methods For the purpose of compliance with the requirements of this Regulation, measurements shall be made using a reliable, accurate and reproducible measurement procedure, which takes into account the generally recognised state of the art measurement methods, including methods set out in documents the reference numbers of which have been published for that purpose in the Official Journal of the European Union. Calculation methods The methodology for calculating the Peak Efficiency Index (PEI) for medium and large power transformers is based on the ratio of the transmitted apparent power of a transformer minus the electrical losses to the transmitted apparent power of the transformer. Where: P 0 is the no load losses measure at rated voltage and rated frequency, on the rated tap P c0 is the electrical power required by the cooling system for no load operation P k is the measured losses at rated current and rated frequency on the rated tap corrected to reference temperature according to EN S r is the rated power of the transformer or autotransformer on which P k is based EN 13 EN
14 Annex III Verification procedure For the purposes of checking compliance with the requirements laid down in Annex I, Member States authorities shall use the measurement methods and calculation methods set out in Annex II. Given the weight and size limitations in the transportation of medium and large power transformers, Member States authorities may decide to undertake the verification procedure at the premises of manufacturers, before they are put into service in their final destination. The model shall be considered to comply with the energy performance or efficiency provisions set out in this Regulation, if the measured parameters meet the requirements set out in Annex I within the verification tolerances indicated in Table 1 of this Annex. The verification tolerances set out in this Annex relate only to the verification of the measured parameters by Member States authorities and shall not be used by the manufacturer or importer as an allowed tolerance to establish the values in the technical documentation. Table 1. Measured parameter Load losses No load losses Verification tolerances The measured value shall not be greater than the declared value by more than 5 %. The measured value shall not be greater than the declared value by more than 5 %. EN 14 EN
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