Distribution Transformers

Transformadores de Distribución

Prestige and Reliability

As undisputed leaders in the domestic market supported by our wide manufacturing experience of more than 50 years, our distribution transformers stand out for their low index of field failures in service.

Our standard product lines are designed for floor and/or air platform installation in urban and general stations places.These electric transformers are built up to 38 kV following IEC , ANSI C57 or any other national or international standard.

Transformers can be delivered under the following general specifications: special Off-load Tap Changer, with or without Compensating Tank, Hermetic Type with or without Nitrogen chamber and Special Accessories upon request.

General building

WINDINGS
High Voltage windings are layer type and Low Voltage ones (up to 1000 V) are built using the latest/newest Foil Technology.
All windings are manufactured in pure electrolytic copper, upon specific request Aluminium type windings can be also provided.
Newest Insulation Techniques are used to built High Voltage windings. Our designs are supported by Official Laboratory tests. Impulse Tests, External Short Circuit Tests and Heating runtest reports are available when requested by customers.

MAGNETIC CORE
Cores are built in grain oriented silicon steel material of low specific losses. Standard used thicknesses vary from 0.23 to 0.35 mm. To minimize off-load current and associated losses, cores are cut using the STEP LAP technique.

TANK
Each tank, up to 1250 kVA, is constructed with double de-layered cold rolled steel obtaining corrugated type tanks. This type of tanks under continuous development allows as to be considered undisputed local leaders in the construction of Hermetic and Completeley Filled transformers.
For standard losses and powers above 1250 kVA we provide transformers with detachable cooling radiators. Special designs are available on request.
Standard and special painting programs are available.

TEST
Fully owned and equipped laboratories allow all routine and reception special tests established by international specifications.

ACCESSORIES
Standard and Non-standard accessories are provided following customer specifications.

IRAM 2250

Distribution Transformers
Ratio 13.200 ±2 x 2,5%/400-231 V/V
Power
(kVA)
Losses (W) Zcc (%) Sizes (mm) Mass
(kg)
Po Pcc Depth Width Height Trail
25 160 600 4,00 1250 750 1250 600 410
40 200 900 4,00 1300 750 1300 600 490
63 270 1350 4,00 1300 750 1300 600 540
80 315 1500 4,00 1450 750 1300 600 620
100 350 1750 4,00 1450 750 1350 600 660
125 420 2100 4,00 1500 750 1350 600 700
160 500 2500 4,00 1600 750 1450 600 840
200 600 3000 4,00 1650 850 1450 600 890
250 700 3500 4,00 1650 900 1450 700 1040
315 850 4250 4,00 1650 900 1500 700 1220
400 1000 5000 4,00 1700 950 1700 700 1490
500 1200 6000 4,00 1700 1050 1700 700 1760
630 1450 7250 4,00 1700 1050 1900 800 1960
800 1750 8750 5,00 1950 1050 2025 800 2390
1000 2000 10500 5,00 2100 1100 2050 800 3080
1250 2300 13800 5,00 2200 1250 2150 1000 3540
1600 2700 17000 6,00 2400 2200 2100 1000 4130
2000 3000 21500 6,00 2500 2550 2200 1000 5060
2500 3300 24800 6,00 2700 2500 2300 1200 6110
3000 3750 27000 6,00 2800 2600 2700 1200 6900

IRAM 2250

Distribution Transformers
  Ratio
33.000 ±2 x 2,5%/400-231 V/V
Power
(kVA)
Losses (W) Zcc (%) Sizes (mm) Mass
(kg)
Po Pcc Depth Width Height Trail
16 130 480 4,00 1550 800 1650 600 500
25 190 650 4,00 1550 750 1650 600 560
40 290 900 4,00 1750 800 1650 600 710
63 320 1500 4,00 1750 800 1650 600 730
80 330 1600 4,00 1750 800 1850 600 780
100 420 1900 4,00 1750 850 1850 600 930
125 500 2500 4,00 1850 850 1850 600 1050
160 600 2800 4,00 1850 900 1900 600 1150
200 700 3250 4,00 1850 900 1900 600 1280
250 850 4000 4,00 1850 1000 1950 700 1470
315 950 4800 4,00 1850 1050 1950 700 1550
400 1200 5000 4,00 1950 1050 2200 700 2060
500 1250 6400 4,00 1950 1050 2300 700 2350
630 1500 7600 4,00 2150 1150 2300 800 2650
800 1800 9800 5,00 2200 1200 2300 800 3150
1000 2200 11700 5,00 2300 1200 2450 800 3650
1250 2500 14200 5,00 2350 1300 2500 1000 4300
1600 2900 17800 6,00 2600 2400 2500 1000 5000
2000 3200 22000 6,00 2700 2600 2600 1000 5400
2500 3600 26000 6,00 3000 2800 2750 1200 6000

IRAM 2476

Step Down Distribution
Ratio 33.000 +2,5; 0; -3 x 2,5%/13.860-8.002 V/V
Power
(kVA)
Losses (W) Zcc (%) Sizes (mm) Mass
(kg)
Po Pcc Depth Width Height Trail
100 440 2500 5,00 1700 950 1800 600 1100
200 720 3600 5,00 1850 900 2050 850 1270
250 850 4250 5,00 1900 950 2050 850 1370
315 1020 5100 5,00 1950 1000 2100 850 1600
400 1160 5800 5,00 2150 1050 2170 850 1900
500 1320 6600 5,00 2150 1050 2250 850 2150
630 1600 8000 5,00 2200 1100 2250 850 2500
800 1900 9500 5,00 2250 1150 2300 850 2930
1000 2300 11500 5,00 2300 1190 2350 1000 3290
1250 2700 13500 5,00 2300 2250 2450 1000 4080
1600 3200 16000 5,00 2400 2300 2550 1000 4780
2000 3700 18500 5,00 2450 2600 2700 1000 5330
2500* 4200 21000 6,00 2850 2450 2750 1676 6130

Drawings

esquemas