Martin Carlen, Global Product Manager Dry Transformers ... · TriDry transformersTriDry...

Martin Carlen, Global Product Manager Dry Transformers, Transformers Days 2011

TriDry transformersTriDry transformers Compact – Efficient – Safe

TriDry TransformerA d d d i ith d d t h lAn advanced design with advanced technology

ABB’s new “TriDry” transformer concept revolutionizes new thinkingrevolutionizes new thinking in the field of dry-type transformers

A special core construction leads to significant product featuresfeatures

TriDry completes ABB’s dry-type transformer y ypportfolio

Premium features in a compact design!

© ABB Group July 11, 2011 | Slide 2

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TriDry Transformer: compact IT i l fi ti i llTriangular configuration gives excellence

A symmetrical, three-phase magnetic circuit => the symmetry of a 3-phase systems is preserved

Magnetization of TriDry core

systems is preserved

Wound core technology, continuously wound, without air-gaps, reducing thewound, without air gaps, reducing the magnetic reluctance (resistance) of the core

Optimized utilization of the core material in terms of magnetic flux distribution

Al t d l h ith 96% fill Almost round leg shape with 96% fill-factor of the core leg circle

Results in a compact transformer Results in a compact transformer


TriDry Transformer: compact IIS ll f t i t bl b d iti f i t ll tiSmaller footprint enables broader varities of installation

Characteristics: Smaller footprint (approx.

25 % l f t )TriDryT diti l

1250 kVA transformer footprint

25 % less square footage)

Length reduced

S f t i t f f t

Traditional e-core

Square footprint form factor allows large variety of bus coordination options

3D views of TriDry model


TriDry Transformer: compact IIIR d d i ht f t t h dli d i t ll tiReduced weight for transport, handling and installation

Easier handling

More efficient transport

Simplified installation

Matching characteristics:Matching characteristics: TriDry transformers are 20-30 % lighter!


TriDry Transformer: efficient IR d d l d l id titi l tiReduced no-load losses provide a competitive solution

Characteristics:

Reduced no-load losses

The core material is used in a highly efficient manner and saves on natural resources

TriDry transformers meet the more stringent no-load losses of the B0 loss l * l t “ t ll ”class* almost “naturally”

Transformers are often run at low load, therefore no-load losses play antherefore no-load losses play an important role in energy efficiency and operation costs

C0

B0

Costs of no-load loss per year*(0.15 EUR/kWh)

A premium feature for a ‘standard’ transformer without the premium cost

2000

2500

3000Y-axis: Annual costs (EUR)

X-axsis:Transformer power

1000

1500

2000

400 630 800 1 000

rating (kVA)

*Base: 8760 h operation per year


400 630 800 1.000 *according to EN50541-1

TriDry Transformer: efficient IIS i d t d d ti l tSavings due to reduced operational costs

No-load loss (NLL)C0B0A0A0-50%

StandardBk

Ak

TriDryEcoDryBasic

d lo

ss

Ak-20%

Ak

EcoDryUltra EcoDry99Plus

Load

(LL)

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 B0Bk!


y g 0 k

TriDry Transformer: premium features IT i l l d t t bl d tTriangular core leads to notable advantages

TriDryStacked Core

Y-axis: H i t t

20%

Measured harmonics in secondary current (100% excitation, Dy-connection)

Reduced harmonics

Measurements of the harmonic content Harmonic content

X-axsis:Number of harmonics10%

15%in the excitation current of TriDry transformers indicate strongly reduced harmonics in comparison to standard

0%

5%

1 3 5 7 9 11

harmonics in comparison to standard stacked core transformers even in the absence of a delta winding

Inrush comparison TriDryStacked Core

Y-axis:25

Reduced inrush current

ABB tested for inrush current with Y-axis: Multiple of primary current

X-axsis:Initial current

10

15

20

25ABB tested for inrush current with positive and negative remaining magnetization (remanence). Tests on similar units indicate a strongly reduced direction

0

5

10

Negative Bias Positive Bias

similar units indicate a strongly reduced inrush current for the TriDry transformer

negative positive


Negative Bias Positive Biasnegative positive

TriDry Transformer: premium features IIT i l l d t t bl d tTriangular core leads to notable 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 coilThe compact and symmetrical coil arrangement results in a greatly reduced electromagnetic stray field around the transformeraround the transformer.


TriDry Transformer: premium features IIIC i ti fi ld T iD t d dComparison magnetic fields TriDry vs. standard transformer1000 kVA, 12 kV -4 -3 -2 -1 0 1 2 3 4

2

3

4

2

3

4-4 -3 -2 -1 0 1 2 3 4

2

3

4

2

3

4-4 -3 -2 -1 0 1 2 3 4

2

3

4

2

3

4-4 -3 -2 -1 0 1 2 3 4

2

3

4

2

3

4

-1

0

1

-1

0

1

-1

0

1

-1

0

1

-1

0

1

-1

0

1

-1

0

1

-1

0

1

TriD

ry

-4 -3 -2 -1 0 1 2 3 4-4

-3

-2

-4

-3

-2

-4 -3 -2 -1 0 1 2 3 4-4

-3

-2

-4

-3

-2

-4 -3 -2 -1 0 1 2 3 4-4

-3

-2

-4

-3

-2

-4 -3 -2 -1 0 1 2 3 4-4

-3

-2

-4

-3

-2

Brms / T> 3e-5

-4 -3 -2 -1 0 1 2 3 4-4 -3 -2 -1 0 1 2 3 4

2

3

4

2

3

4

2

3

4

2

3

4-4 -3 -2 -1 0 1 2 3 4-4 -3 -2 -1 0 1 2 3 4

3

4

3

4

3

4

3

4

1e-5 - 3e-53e-6 - 1e-51e-6 - 3e-6

r

-1

0

1

2

-1

0

1

2

-1

0

1

2

-1

0

1

2

-1

0

1

2

-1

0

1

2

-1

0

1

2

-1

0

1

2

tand

ard

nsfo

rme

4 3 2 1 0 1 2 3 44 3 2 1 0 1 2 3 4-4

-3

-2

-4

-3

-2

-4

-3

-2

1

-4

-3

-2

1

-4

-3

-2

1

-4

-3

-2

1

-4

-3

-2

1

-4

-3

-2

1

St

tran


-4 -3 -2 -1 0 1 2 3 4-4 -3 -2 -1 0 1 2 3 4-4 -3 -2 -1 0 1 2 3 4-4 -3 -2 -1 0 1 2 3 4

TriDry TransformerP d t’ i l h t i tiProduct’s special characteristics

Standards:

IEC60076-11: 2004

TriDry: Front view

Product Scope:

Ratings: 400 kVA up to 2500 kVARatings: 400 kVA up to 2500 kVA

Voltage levels: 10 kV up to 24 kV

Ambient:Ambient:

Indoor, -25°C up to +40°C

I l ti Cl F

TriDry: Bird‘s eye view

Insulation Class: F


TriDry Transformer: the premium without the premiumF t d li ti d t t d di d tiFast delivery times due to standardized ratings

Four ratings 400, 630, 800 and 1000 kVA for 10 kV and 20 kV will be availableand 20 kV will be available in stock

Delivery within two weeksDelivery within two weeks

Delivery times and voltage levels for other ratings upon request

P i t f ith t i iPremium transformers without a premium price, plus short delivery times!


TriDry TransformerC t ’ b fitCustomers’ benefits

Compact: different and more 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 efficiencieslighter for certain efficiencies

Safe: all the advantages of dry-type insulation in a robust, symmetrical package

Short delivery times: thanks to t d di ti t f thstandardization; most of the common

ratings in stock


Martin Carlen, Global Product Manager Dry Transformers ... · TriDry transformersTriDry...

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