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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS
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Catalog excerpts

GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 1

GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS THE GLOBAL SPECIALIST IN ELECTRICAL AND DIGITAL BUILDING INFRASTRUCTURES

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 3

Index 4-6 General features Green T.HE cast resin transformers Advantages of Green T.HE transformers Certified quality Resin Green T.HE 12 kV insulation class 17,5 kV insulation class 24 kV insulation class 36 kV insulation class Installation accessories

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 4

resin Transformers With the application in July 2015 of the European Commission Regulation for ecodesign, efficiency standards of transformers will be more strenght The Green T.HE Transformers comply with the EN 50588-1 Standard. They are designed and manufactured according to the Regulation 548/2014 of European Commission and the new Ecodesign guidelines 2009/125/CE. Legrand Green T.HE Transformers, designed and manufactured in accordance with new Regulation, ensure a consistent reduction in energy consumption, resulting in economic savings and the decrease of CO2 emissions released into...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 5

CLASSIFICATION The classification of a cast resin transformer depends on the value of the no-load losses (P0), as well as the load losses (Pk). More precisely P0 losses are independent from the load and remain constant for the whole period the transformer is connected to the electric power network. On the other hand, Pk losses only occur when the transformer is connected to a load and they are proportional to the square of the load. ECODESIGN REQUIREMENTS

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 6

TRANSFORMERS Low, partial discharges, HIGH Quality According to the product standard related to design of resin transformers (CEI EN 60076-11, i.e. IEC 60076-11), all the windings with a voltage ≥ 3.6kV should be subjected to the measurement of the partial discharges and the value measured should not exceed 10 picocoulombs (pC). Partial discharges are a microscopic phenomena occurring inside insulating resin cavities and can speed up ageing. For this reason, it is important that the values of such currents are limited. A low value of partial discharges gives an indication of the positive...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 7

Reliability guaranteed With Green T.HE series, Legrand provides customers a top-quality product which guarantees long-term excellent performance and reliability. When the Green T.HE transformers are subjected to partial discharges (according to CEI 60076-1 1, i.e. IEC 60076-1 1), values under 5 pC have been always been achieved (which exceeds the requirement of the standard which establishes the maximum value at 10 pC). Thanks to the excellent quality of products, Legrand has extended its GUARANTEE to 8 YEARS for all its transformers with standard features (*). Green T.HE series is...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 8

A A Q A £ TESTING AUTHORIZATION A CAE tare per fn ('ertifiearwne dcfie Appareechiitiurv Ek'trhehef Member of LOVAG (fjnv I1WhiRir Agreement Group) authorises the Laboratory B Ticino S.p.A. based in Via E. Ferrari JJ, ViUa Zaccheo - 64020 Casfellalta (TE) I.abomMty t'&iitficittinn number, fB 03 to ettrr? *mi fht tern toted m the fititowittg, for the propane io certify the prm/tto’t* iV Jtahif m the < 'cmfk'aie ft° OTQR and tet enctmurv, tsav&t to Ai Afi by A( 'CREDtA. J.nt of the authorized flpflS an the power transformer*; Wi.YiuwrrnivJJ nf Mjdr.rjLfr Hiltirjttmi, tn i ,*f ptttiu-...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 9

Resin Green T.HE Compliance with standard: IEC 60076-11 and EN 50588-1 Power (kVA): 100–3150 Frequency (Hz): 50 Adjustment, MT side: ± 2 x 2.5% Thermal class of the insulating system: 155 °C (F) / 155 °C (F) Temperature rise: 100/100 K Class of use: E2-C2-F1 Certified CESI A9032391 IEC 60076-11 Tolerances on losses: 0% Other tolerances: According to IEC/CEI Primary voltages (kV): 6-10-11. Insulation class: 12 kV BIL 60 kV (BIL 75 kV available on request at no extra charge, to be specified at the time of order) Secondary voltages no-load (V): 400-433 (insulation class 1.1 kV) Primary...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 10

SR Series Item Uk Primary Secondary Po Pk lo LwA-Acoustic Length Width Height Ic - wheel R - wheel Weight BOX [kVA] (Reg548) [%] voltage voltage [W] [W] a [%] power (A) (B) (C) centre line diameter [kg] type*

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 14

Ventilation bars The ventilation busbars temporarily increase the rated power (under normal service conditions). According to standard IEC 60076-1, a transformer is called AN even if it is equipped with discontinuous ventilation. If a transformer with AF continuous service is requested, it is not possible to refer to the codes included in this catalogue, but the transformer will be designed according to the customer's needs. Rubber supports (anti vibration) A temporary increase in rated conditions Cupal plates Description 4 buffers supplied for mounting under the transformer casters 4...

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GREEN T.HE HIGH EFFICIENCY CAST RESIN TRANSFORMERS - 16

FOLLOW US ALSO ON @ www.legrand.com El www.youtube.com/legrand ^ twitter.eom/@legrand

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