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Medium voltage cast resin transformers

Medium voltage cast resin transformers

From the very beginning, transformers have been at the core of Ortea’s business.

The magnetic product portfolio includes both VPI low voltage transformers and Medium Voltage cast resin transformers. Ortea offers two types of medium voltage resin transformers: Standard and Eco-design (compliant with EU regulation no. 548/2014).

Below are tables with technical characteristics for the 15kV and 20kV versions.

15kV SERIES

SERIE
15kV
Design
Cast resin transformer
Application
Distribution
Nominal primary voltage
15kV
Nominal secondary voltage
400V (up to 1kV on request)
Frequency
50/60Hz
Primary voltage tapping
±2 x 2,5%
Vector group
Dyn11
Primary and Secondary winding material
Aluminium
Primary winding insulation
Casted in mould
Secondary winding insulation
Impregnated
Ambient temperature
-25/+50°C
Temperature rise
100/100K
Thermal class
F/F
Primary insulation level
17,5/36/75kV
Secondary insulation level
1,1/3kV
Environmental - climate - fire resistance class
E2 - C2 - F1
Altitude
<1300m
Vcc
6%
Partial discharge level
<10pC
Sound pressure level (Lpa @1m / Lwa)
61/76dBA
Cooling
AN
Installation
Indoor
Protection degree
IP00
Reference standard
IEC 60076-11

STANDARD

Rated power (@ 400V)
No-load losses
Load losses (120°C)
LV Current (@ 400V)
MV Current
Dimensions WxDxH
Weight
400
1250
5300
577,4
15,4
1410x750x1430
1600
500
1400
6400
721,7
19,2
1550x800x1500
1800
630
1580
7600
909,3
24,2
1510x850x1590
2000
800
2000
9400
1154,7
30,8
1530x850x1700
2300
1000
2200
11500
1443,4
38,5
1600x1000x1800
2700
1250
2800
13000
1804,2
48,1
1660x1000x1940
3100
1600
3100
16000
2309,4
61,6
1760x1000x2050
3800
2000
3900
19000
2886,8
77
1760x1310x2200
4200
2500
4900
21500
3608,4
96,2
1960x1310x2240
5200
Rated power (@ 400V)
No-load losses
Load losses (120°C)
LV Current (@ 400V)
MV Current
Dimensions WxDxH
Weight
400
675
4500
577,4
15,4
1530x750x1500
2100
500
830
5800
721,7
19,2
1550x800x1550
2150
630
990
7100
909,3
24,2
1570x850x1660
2300
800
1170
8000
1154,7
30,8
1590x850x1800
2700
1000
1395
9000
1443,4
38,5
1650x1000x1950
3100
1250
1620
11000
1804,2
48,1
1750x1000x2000
3900
1600
1980
13000
2309,4
61,6
1850x1000x2200
4650
2000
2340
16000
2886,8
77
1880x1310x2250
4900
2500
2790
19000
3608,4
96,2
2030x1310x2300
6000

20kV SERIES

Design
Cast resin transformer
Application
Distribution
Nominal primary voltage
20kV
Nominal secondary voltage
400V (up to 1kV on request)
Frequency
50/60Hz
Primary voltage tapping
±2 x 2,5%
Vector group
Dyn11
Primary and Secondary winding material
Aluminium
Primary winding insulation
Casted in mould
Secondary winding insulation
Impregnated
Ambient temperature
-25/+50°C
Temperature rise
100/100K
Thermal class
F/F
Primary insulation level
24/50/95kV
Secondary insulation level
1,1/3kV
Environmental - climate - fire resistance class
E2 - C2 - F1
Altitude
<1300m
Vcc
6%
Partial discharge level
<10pC
Sound pressure level (Lpa @1m / Lwa)
61/76dBA
Cooling
AN
Installation
Indoor
Protection degree
IP00
Reference standard
IEC 60076-11

STANDARD

Rated power (@ 400V)
No-load losses
Load losses (120°C)
LV Current (@ 400V)
MV Current
Dimensions WxDxH
Weight
400
1250
5300
577,4
11,5
1410x750x1430
1600
500
1400
6400
721,7
14,4
1550x800x1500
1800
630
1580
7600
909,3
18,2
1510x850x1590
2000
800
2000
9400
1154,7
23,1
1530x850x1700
2300
1000
2200
11500
1443,4
28,9
1600x1000x1800
2700
1250
2800
13000
1804,2
36,1
1660x1000x1940
3100
1600
3100
16000
2309,4
46,2
1760x1000x2050
3800
2000
3900
19000
2886,8
57,7
1760x1310x2200
4200
2500
4900
21500
3608,4
72,2
1960x1310x2240
5200
Rated power (@ 400V)
No-load losses
Load losses (120°C)
LV Current (@ 400V)
MV Current
Dimensions WxDxH
Weight
400
675
4500
577,4
11,5
1530x750x1500
2100
500
830
5800
721,7
14,4
1550x800x1550
2150
630
990
7100
909,3
18,2
1570x850x1660
2300
800
1170
8000
1154,7
23,1
1590x850x1800
2700
1000
1395
9000
1443,4
28,9
1650x1000x1950
3100
1250
1620
11000
1804,2
36,1
1750x1000x2000
3900
1600
1980
13000
2309,4
46,2
1850x1000x2200
4650
2000
2340
16000
2886,8
57,7
1880x1310x2250
4900
2500
2790
19000
3608,4
72,2
2030x1310x2300
6000