TriDry transformers TriDry transformers Compact ... - ABB Group
Martin Carlen, Global Product Manager Dry Transformers, Transformers Days 2011
TriDry transformers Compact – Efficient – Safe
TriDry Transformer A advanced An d dd design i with ith advanced d d ttechnology h l
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 completes ABB’s y yp transformer dry-type portfolio
Premium features in a compact p design! g © ABB Group July 11, 2011 | Slide 2
TriDry Transformer: compact I Ti Triangular l configuration fi ti gives i excellence ll Magnetization of TriDry core
© ABB Group July 11, 2011 | Slide 3
A symmetrical, three-phase magnetic circuit => the symmetry of a 3-phase systems is preserved
Wound core technology, continuously wound, without air-gaps, air gaps, reducing the magnetic reluctance (resistance) of the core
Optimized utilization of the core material in terms of magnetic flux distribution
Almostt round Al d lleg shape h with ith 96% fillfill factor of the core leg circle
Results in a compact transformer
TriDry Transformer: compact II S ll ffootprint Smaller t i t enables bl b broader d varities iti off iinstallation t ll ti 1250 kVA transformer footprint TriDry
Characteristics:
Smaller footprint (approx. 25 % lless square ffootage) t )
Length reduced
Square footprint S f t i t form f factor f t allows large variety of bus coordination options
T diti Traditional l e-core
3D views of TriDry model
© ABB Group July 11, 2011 | Slide 4
TriDry Transformer: compact III R d Reduced d weight i ht for f transport, t t h handling dli and d iinstallation t ll ti
Easier handling
More efficient transport
Simplified installation
Matching characteristics: TriDry transformers are 20-30 % lighter!
© ABB Group July 11, 2011 | Slide 5
TriDry Transformer: efficient I R d Reduced d no-load l d llosses provide id a competitive titi solution l ti The core material is used in a highly efficient manner and saves on natural resources
C0
Characteristics:
Reduced no-load losses
TriDry transformers meet the more stringent no-load losses of the B0 loss class* l * almost l t ““naturally” t ll ”
Transformers are often run at low load, therefore no-load losses play an important role in energy efficiency and operation costs
A premium feature for a ‘standard’ transformer without the premium cost
Costs of no-load loss per year* (0.15 EUR/kWh)
B0 Y-axis: Annual costs (EUR)
3000 2500
X-axsis: Transformer power rating (kVA) *Base: 8760 h operation per year
2000 1500 1000 400
© ABB Group July 11, 2011 | Slide 6
630
800
1 000 1.000
*according to EN50541-1
TriDry Transformer: efficient II S i Savings d due tto reduced d d operational ti l costs t No-load loss (NLL)
Load d loss (LL)
A0-50% Bk
A0
B0
C0 Standard
EcoDryBasic TriDry
Ak
Ak-20% EcoDryUltra
EcoDry99Plus
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 y according g to Class B0Bk!
© ABB Group July 11, 2011 | Slide 7
TriDry Transformer: premium features I Ti Triangular l core lleads d tto notable t bl advantages d t 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%
Y-axis: Harmonic H i content t t
15%
X-axsis: Number of harmonics
10% 5% 0% 1
Reduced inrush current
ABB tested for inrush current with positive and negative remaining magnetization (remanence). Tests on similar units indicate a strongly reduced inrush current for the TriDry transformer
3
5
7
9
Inrush comparison
11 TriDry Stacked Core
25
Y-axis: Multiple of primary current
20 15
X-axsis: Initial current direction
10 5 0
negative Negative Bias © ABB Group July 11, 2011 | Slide 8
TriDry Stacked Core
positive Positive Bias
TriDry Transformer: premium features II Ti Triangular l core lleads d tto notable t bl advantages d t 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 transformer.
© ABB Group July 11, 2011 | Slide 9
TriDry Transformer: premium features III C Comparison i magnetic ti fi fields ld T TriDry iD vs. standard t d d transformer -4
TriDry
1000 kVA, 12 kV
-3
-2
-1
0
1
2
3
4
Sttandard tran nsformer
-3
-2
-1
0
1
2
3
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
0
0
0
0
-1
-1
-1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-4
-4
-4
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
0
0
0
0
1 -1
-1 1
-1 1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-4
-4
-4 -4
-3
-2
-1
0
1
2
3
4
-4
-3
-2
-1
0
1
2
3
4
-4 -4
© ABB Group July 11, 2011 | Slide 10
-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
-4 -4 4
-3 3
-2 2
-1 1
0
1
2
3
4
Brms / T > 3e-5 1e-5 - 3e-5 3e-6 - 1e-5 1e-6 - 3e-6
TriDry Transformer P d t’ special Product’s i l characteristics h t i ti TriDry: Front view
Standards:
IEC60076-11: 2004
Product Scope:
Ratings: 400 kVA up to 2500 kVA
Voltage levels: 10 kV up to 24 kV
Ambient: TriDry: Bird‘s eye view
© ABB Group July 11, 2011 | Slide 11
Indoor, -25°C up to +40°C
I Insulation l ti Cl Class: F
TriDry Transformer: the premium without the premium F t delivery Fast d li times ti due d to t standardized t d di d ratings ti
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
P Premium i ttransformers f without ith t a premium i price, i plus short delivery times!
© ABB Group July 11, 2011 | Slide 12
TriDry Transformer C t Customers’ ’b benefits fit
© ABB Group July 11, 2011 | Slide 13
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 efficiencies
Safe: all the advantages of dry-type insulation in a robust, symmetrical package
Short delivery times: thanks to standardization; t d di ti mostt off the th common ratings in stock
© ABB Group July 11, 2011 | Slide 14
TriDry transformers Compact – Efficient – Safe
TriDry Transformer A advanced An d dd design i with ith advanced d d ttechnology h l
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 completes ABB’s y yp transformer dry-type portfolio
Premium features in a compact p design! g © ABB Group July 11, 2011 | Slide 2
TriDry Transformer: compact I Ti Triangular l configuration fi ti gives i excellence ll Magnetization of TriDry core
© ABB Group July 11, 2011 | Slide 3
A symmetrical, three-phase magnetic circuit => the symmetry of a 3-phase systems is preserved
Wound core technology, continuously wound, without air-gaps, air gaps, reducing the magnetic reluctance (resistance) of the core
Optimized utilization of the core material in terms of magnetic flux distribution
Almostt round Al d lleg shape h with ith 96% fillfill factor of the core leg circle
Results in a compact transformer
TriDry Transformer: compact II S ll ffootprint Smaller t i t enables bl b broader d varities iti off iinstallation t ll ti 1250 kVA transformer footprint TriDry
Characteristics:
Smaller footprint (approx. 25 % lless square ffootage) t )
Length reduced
Square footprint S f t i t form f factor f t allows large variety of bus coordination options
T diti Traditional l e-core
3D views of TriDry model
© ABB Group July 11, 2011 | Slide 4
TriDry Transformer: compact III R d Reduced d weight i ht for f transport, t t h handling dli and d iinstallation t ll ti
Easier handling
More efficient transport
Simplified installation
Matching characteristics: TriDry transformers are 20-30 % lighter!
© ABB Group July 11, 2011 | Slide 5
TriDry Transformer: efficient I R d Reduced d no-load l d llosses provide id a competitive titi solution l ti The core material is used in a highly efficient manner and saves on natural resources
C0
Characteristics:
Reduced no-load losses
TriDry transformers meet the more stringent no-load losses of the B0 loss class* l * almost l t ““naturally” t ll ”
Transformers are often run at low load, therefore no-load losses play an important role in energy efficiency and operation costs
A premium feature for a ‘standard’ transformer without the premium cost
Costs of no-load loss per year* (0.15 EUR/kWh)
B0 Y-axis: Annual costs (EUR)
3000 2500
X-axsis: Transformer power rating (kVA) *Base: 8760 h operation per year
2000 1500 1000 400
© ABB Group July 11, 2011 | Slide 6
630
800
1 000 1.000
*according to EN50541-1
TriDry Transformer: efficient II S i Savings d due tto reduced d d operational ti l costs t No-load loss (NLL)
Load d loss (LL)
A0-50% Bk
A0
B0
C0 Standard
EcoDryBasic TriDry
Ak
Ak-20% EcoDryUltra
EcoDry99Plus
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 y according g to Class B0Bk!
© ABB Group July 11, 2011 | Slide 7
TriDry Transformer: premium features I Ti Triangular l core lleads d tto notable t bl advantages d t 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%
Y-axis: Harmonic H i content t t
15%
X-axsis: Number of harmonics
10% 5% 0% 1
Reduced inrush current
ABB tested for inrush current with positive and negative remaining magnetization (remanence). Tests on similar units indicate a strongly reduced inrush current for the TriDry transformer
3
5
7
9
Inrush comparison
11 TriDry Stacked Core
25
Y-axis: Multiple of primary current
20 15
X-axsis: Initial current direction
10 5 0
negative Negative Bias © ABB Group July 11, 2011 | Slide 8
TriDry Stacked Core
positive Positive Bias
TriDry Transformer: premium features II Ti Triangular l core lleads d tto notable t bl advantages d t 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 transformer.
© ABB Group July 11, 2011 | Slide 9
TriDry Transformer: premium features III C Comparison i magnetic ti fi fields ld T TriDry iD vs. standard t d d transformer -4
TriDry
1000 kVA, 12 kV
-3
-2
-1
0
1
2
3
4
Sttandard tran nsformer
-3
-2
-1
0
1
2
3
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
0
0
0
0
-1
-1
-1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-4
-4
-4
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
0
0
0
0
1 -1
-1 1
-1 1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-4
-4
-4 -4
-3
-2
-1
0
1
2
3
4
-4
-3
-2
-1
0
1
2
3
4
-4 -4
© ABB Group July 11, 2011 | Slide 10
-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
-4 -4 4
-3 3
-2 2
-1 1
0
1
2
3
4
Brms / T > 3e-5 1e-5 - 3e-5 3e-6 - 1e-5 1e-6 - 3e-6
TriDry Transformer P d t’ special Product’s i l characteristics h t i ti TriDry: Front view
Standards:
IEC60076-11: 2004
Product Scope:
Ratings: 400 kVA up to 2500 kVA
Voltage levels: 10 kV up to 24 kV
Ambient: TriDry: Bird‘s eye view
© ABB Group July 11, 2011 | Slide 11
Indoor, -25°C up to +40°C
I Insulation l ti Cl Class: F
TriDry Transformer: the premium without the premium F t delivery Fast d li times ti due d to t standardized t d di d ratings ti
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
P Premium i ttransformers f without ith t a premium i price, i plus short delivery times!
© ABB Group July 11, 2011 | Slide 12
TriDry Transformer C t Customers’ ’b benefits fit
© ABB Group July 11, 2011 | Slide 13
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 efficiencies
Safe: all the advantages of dry-type insulation in a robust, symmetrical package
Short delivery times: thanks to standardization; t d di ti mostt off the th common ratings in stock
© ABB Group July 11, 2011 | Slide 14
