MVLF C G d Di t ib ti

Wes Patterson, DOE Negotiating Committee, 14 Nov 2011

MVLF

Core 

Gra

des Di

s

t

rib

ution

Im

py g act b

y settin

g standard at diffe

dEL Levels

© ABBMonth DD, YYYY | Slide 1
Impact of a new standard on the distribution 

steel grades by MVA shipped steel grades by MVA shipped

d

-

dEL4

-25%

dEL5

-37%

dEL6

-46%

dEL3

-18%

1 This illustrates the 

impact on the consumption of core steel b

y grade as 

the result of a new efficiency standard

2 All grades to the left 

of a dEL would be required to meet the market demand 

3 Data shows the 

MVA by grade to the left of a dEL

4 red ABB red = ABB

colored = OPS

5 Example shown is 

MVLF, 1ph, 50KVA with a new standard 

set at dEL4 set at dEL4

6 In this example an 

efficiency standard set at dEL4 would 

result in only SA bein

g possible

© ABBMonth DD, YYYY | Slide 2
MVLF Current Draft Efficiency Levels

 The following assumes the DL01 % efficiency 

reduction applies to all designs

© ABBMonth DD, YYYY | Slide 3
MVA shipped by dEL

MVLF

– total ABB+PPI total ABB+PPI

1 % of MVA shipped 

that was >= dEL5 ... 2% dEL5

... 2%

dEL4-dEL5 ... 2%dEL3-dEL4 ... 3%dEL2-dEL3 ... 4%dEL1-dEL2 ... 9%STD-dEL1 ... 80%

2 Volume complying 

with dEL5 = 2%

3 Volume complying 

with dEL4 = 4%

4 Vl li o ume complying 

with dEL3 = 7%

5 Volume complying 

with dEL2 = 11%

6 Volume complying Volume complying

with dEL1 = 20%

7 Volume complying 

with STD = 100%

5 In the following In the following

charts the sample size (and accuracy) decreases with increasing dEL

© ABBMonth DD, YYYY | Slide 4
MVA shipped by Grade for different dEL Sta

MVLF Networks MVLF Networks

– 1ph and 3ph 1ph and 3ph

1 ABB only produces 

these with stackedcore

2 To meet the current 

standard and dimensional constraints requires the use of the 

highest grade of steel available for stacked construction – only laser-scribed

3 S tti t d d S

etting a stan

dar

d

even to dEL1 for Networks will be very challenging and will result in utilization of a 

single grade (H0 single grade (H0)

4 ... 

 No products produced 

© ABBMonth DD, YYYY | Slide 5
MVA shipped by Grade for different dEL Sta

MVLF Substations MVLF Substations

– 1ph and 3ph 1ph and 3ph

1 ABB only produces 

these with stackedcore

2 At the current 

standard level a variety of grades are used but mainly H0 and H1 (laserscribed)

3 Within recent 

production only H0 was used to achieve an effi i l l f ffi

ciency level of

dEL1 or higher – a sole-source situation

4

...

5

...

 No products produced 

© ABBMonth DD, YYYY | Slide 6
MVA shipped by Grade for different dEL Sta

MVLF Poles MVLF Poles

– 1ph and 3ph 1ph and 3ph

1 SA is not used by 

PPI for production

2 At dEL1 the volume 

demand has shifted from M3 to M2

3 dEL1 and dEL2 

result in similar 

distributions between M2 and M3 ...

4 ... but by dEL3 the 

required material b il M ecomes mainly M2

5 Note that M2 supply 

is dependent on the utilization of M3

5 dEL1/2 will put a dEL1/2 will put

a

strain on the supply of M2 resulting from the reduced demand for M3

 

© ABBMonth DD, YYYY | Slide 7
MVA shipped by Grade for different dEL Sta

MVLF Pads MVLF Pads

– 1ph and 3ph 1ph and 3ph

1 At dEL1 about 55% 

of the steel would 

be M3 and the be M3 and the

balance split between M2 and SA

2 At dEL2 the 

distribution is about evenly split between 

M2, M3 and SA

3 by dEL3 about 55% 

of the steel will have moved to SA and the remainder evenl lit b t ly split

b

etween 

M2 and M3

4 by dEL4 the bulk of 

the steel is SA followed by M2 but 

...

5 ... M2 supply is 

dependent on the utilization of M3 which would no longer exist so in longer exist so in

essence by dEL4 it would all become SA

6 dEL3 would result 

in a strain on the 

© ABBMonth DD, YYYY | Slide 8

supply of M3/M2

"'" dEL1 

om dEl ( 
Power and productivity 

for a better worldTM