ag-og drive karsilastırma
TRANSCRIPT
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ABB Industrie AG
Drive ProductsModule 21 Page 1
ComparisonComparison
MV with LV DrivesMV with LV Drives
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ABB Industrie AG
Drive ProductsModule 21 Page 2
Subject of comparison
MV 3.3 kV withLV 0.69 kV
in the power range of 710 kW to 2800 kW
Remark: The power range below 710 kW was not considered
because MV drives have usually a 12 pulse topology (or higher)
and LV drives are only 6 pulse
Comparison MV with LV Drive
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ABB Industrie AG
Drive ProductsModule 21 Page 3
Cubicle length in meter
The LV cubicle is longer than the MV cubicle
Cubicle length in meter
0
1
2
3
4
5
6
7
8
9
0 500 1000 1500 2000 2500 3000
Motor Power in kW
Meter
LV
MV
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ABB Industrie AG
Drive ProductsModule 21 Page 4
The LV footprint is bigger than the MV
footprint
Cubicle footprint in square meter
Cubicle footprint in square meter
0
1
2
3
4
5
6
0 500 1000 1500 2000 2500 3000
Motor Power in kW
Squaremeter
MV
LV
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ABB Industrie AG
Drive ProductsModule 21 Page 5
MV weighs less than LV
Cubicle weight in kg
Cubicle weigth in kilogram
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
0 500 1000 1500 2000 2500 3000
Motor Power in kW
Kilogra
MV
LV
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ABB Industrie AG
Drive ProductsModule 21 Page 6
MV Converters alone are more expensive
than LV
Converter prices in units
Converter transfer price in units
0
50000
100000
150000
200000
250000
300000
0 500 1000 1500 2000 2500 3000
Motor Power in kW
units
LV
MV
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ABB Industrie AG
Drive ProductsModule 21 Page 7
MV Motor prices are almost identical to
LV Motor prices
AC Motor prices in units
Prices of AC Induction Motors
0
20000
40000
60000
80000
100000
120000
0 500 1000 1500 2000 2500 3000
Motor power in kW
Transferprice
inu
nits LV
MV
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ABB Industrie AG
Drive ProductsModule 21 Page 8
MV Transformer prices are almost
identical to LV Transformer prices
Transformer prices in units
Transfer price in units of oil transformers for converter supply
0
10000
20000
30000
40000
50000
60000
70000
80000
0 500 1000 1500 2000 2500 3000Motor power in kW
units
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ABB Industrie AGDrive ProductsModule 21 Page 9
Motor Cable Costs
Comparison between LV and MV motor cable costs
0
10000
20000
30000
40000
50000
60000
0 500 1000 1500 2000 2500
MW
Units
LV Cables are approx. 4-8 times more expensive
than MV Cables
LV
MV
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ABB Industrie AGDrive ProductsModule 21 Page 10
MV Converter losses are approx. 30%
lower than LV Converter losses
Converter losses in kW
0
10
20
30
40
50
60
70
80
90
0 500 1000 1500 2000 2500 3000
Motor Power in kW
units
MV at 100% load
LV at 100 % load
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ABB Industrie AGDrive ProductsModule 21 Page 11
System Prices in units
-100000
-50000
0
50000
100000
150000
200000
250000
300000
350000
0 500 1000 1500 2000 2500 3000
Motor power in kW
LV-MVsystem
pricesinunits
cable length 25 m
cable length 50 m
cable length 100 m
cable length 200 m
cable length 300 m
System means Transformer, Converter, Motor, Motor cablewith a loss evaluation over an operating time of 10 years
Above zero line= MV is cheaper
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Summary 1
MV Cables are about 4-8 times cheaper
than LV Cables.
The space requirement for MV cables is
much lower
MV Cable laying and connecting costs
much less than for LV Cables
Comparison MV with LV Drive
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Summary 2
A MV Drive system ( transformer,
converter, motor and motor cables) must
be seriously considered as an alternative
to LV at 500 kW and above
Comparison MV with LV Drive