ABB Transformers TriDry transformers Compact Efficient Safe. ABB Group January 5, 2012 Slide 1
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1 ABB Transformers TriDry transformers Compact Efficient Safe January 5, 2012 Slide 1
2 TriDry Transformer An advanced design with advanced technology ABB s new TriDry transformer concept revolutionizes new thinking in the field of dry-type transformers A special core construction leads to significant product features TriDry complements ABB s dry-type transformer portfolio Premium features in a compact design! January 5, 2012 Slide 2
3 TriDry Transformer: compact I Compact with a highly efficient core Magnetization of TriDry core Wound core technology, continuously wound, without air-gaps, reducing the magnetic reluctance of the core A symmetrical, three-phase magnetic circuit Optimized utilization of the core material in terms of magnetic flux distribution Almost round leg shape with 96% fillfactor of the core leg circle January 5, 2012 Slide 3
4 TriDry Transformer: compact II Smaller footprint offers more installation options 1250 kva transformer footprint TriDry Traditional e-core Characteristics: Smaller footprint (approx. 25 % less square footage) Length reduced Square footprint form factor allows large variety of bus coordination options 3D views of TriDry model January 5, 2012 Slide 4
5 TriDry Transformer: compact III Reduced weight for transport, handling and installation Easier handling More efficient transport Simplified installation Matching characteristics: TriDry transformers are % lighter! January 5, 2012 Slide 5
6 TriDry Transformer: efficient I Reduced no-load losses provide a competitive solution The core material is used in a highly efficient manner and saves on natural resources Characteristics: Reduced no-load losses C 0 B 0 Y-axis: Annual costs (EUR) X-axsis: Transformer power rating (kva) *Base: 8760 h operation per year Costs of no-load loss per year* (0.15 EUR/kWh) TriDry transformers meet the more stringent no-load losses for B 0 almost naturally Transformers are mostly run at low loads, therefore no-load losses play an important role in energy efficiency A premium feature for a standard transformer without the premium cost January 5, 2012 Slide 6
7 TriDry Transformer: efficient II Savings due to reduced operational costs No-load loss (NLL) A 0-50% A 0 B 0 C 0 Load loss (LL) B k EcoDry TriDry Standard A k A k -20% Higher efficiency levels of TriDry compared to standard transformers More efficient units reduce operational costs during the transformer s life cycle A competitive, environment-friendly solution Transformer efficiency according to Class B 0 B k! January 5, 2012 Slide 7
8 TriDry Transformer: premium features I New core construction leads to significant advantages Reduced harmonics Measurements of the harmonic content in the excitation current of TriDry transformers indicate strongly reduced harmonics in comparison to standard stacked core transformers even in the absence of a delta winding Measured harmonics in secondary current (100% excitation, Dy-connection) 20% 15% 10% 5% 0% TriDry Stacked Core Y-axis: Harmonic content X-axsis: Number of harmonics Reduced inrush current ABB tests for inrush current with positive and negative remanence bias in the core. Tests on similar units indicate a strongly reduced inrush current for the TriDry transformer Inrush comparison Negative Bias Positive Bias TriDry Stacked Core Y-axis: Multiple of primary current X-axsis: Initial current direction January 5, 2012 Slide 8
9 TriDry Transformer: premium features II New core construction leads to significant advantages Reduced sound level The unique features of the core result in noise level improvements of 5-10 db compared to standard-grade steel. Improved EMC The compact and symmetrical coil arrangement results in a greatly reduced electromagnetic stray field around the transformer. January 5, 2012 Slide 9
10 TriDry Transformer: premium features III Comparison stray magnetic fields 1000 kva, 12 kv Brms / T > 3e-5 1e-5-3e-5 3e-6-1e-5 1e-6-3e-6 TriDry Standard transformer January 5, 2012 Slide 10
11 TriDry Transformer Product scope TriDry: Front view Standards: IEC : 2004 Product Scope: Ratings: 400 kva up to 2500 kva Voltage levels: 10 kv up to 24 kv TriDry: Bird s eye view Ambient: Indoor, -25 C up to +40 C Insulation Class: F January 5, 2012 Slide 11
12 TriDry Transformer: Fast delivery times Premium features without premium price Four ratings 400, 630, 800 and 1000 kva for 10 kv and 20 kv will be available in stock Delivery within two weeks Delivery times and voltage levels for other ratings upon request Premium transformers without a premium price, plus short delivery times! January 5, 2012 Slide 12
13 TriDry Transformer Customers benefits Compact: more square and compact footprint, less weight and length Efficient: 20-30% lower no-load loss at same material usage or up to 20-30% lighter for certain efficiencies Safe: all the advantages of dry-type insulation in a robust, symmetrical package Short delivery times: thanks to standardization; most of the common ratings in stock January 5, 2012 Slide 13
14 January 5, 2012 Slide 14
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