AUTF FAMILY Autotransformers for solar inverters

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Dry type autotransformer.

All autotransformers are tropicalized with anti-flash varnish:

  • Protection against corrosive environments.
  • Greater electrical insulation.
  • High compaction power.
  • Noise level reduction.
  • Longer useful life of the product.
  • IP-23 enclosure, metal enclosure painted with RAL 7035 polyester resin (cat. C4 ISO 12994-2).

Safety class I

Includes lifting bolts from 50 kVA.

Tailor made if the standard specifications are not what is required.

  • These devices are used to reduce the output voltage of inverters from 800V to 400V. Therefore, achieving the working tension required by the client.
  • If you need other working voltages, they can be manufactured upon request.

Available accessories:

  • Class II.
  • Wheels
  • PT100, PTC or Bimetallic probes.
  • C5 paint.
  • Several RAL.
  • Electric temperature panel.
  • Anti-condensation system.
  • IP up to IP-65.

Certification

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Rating1 kVA2 kVA3,15 kVA5 kVA8 kVA10 kVA12,5 kVA16 kVA20 kVA25 kVA31,5 kVA40 kVA50 kVA63 kVA80 kVA100 kVA125 kVA160 kVA200 kVA250 kVA315 kVA400 kVA500 kVA630 kVA800 kVA1000 kVA
Input voltage800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V
Output voltage400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V
Frequency50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz
Connection groupYN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0
Protection degreeIP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00IP-00
CoolingANANANANANANANANANANANANANANANANANANANANANANANANANAN
Ambient temperature40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC40 ºC
Temperature riseClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass HClass HClass HClass HClass HClass HClass HClass HClass HClass HClass HClass H
InsulationClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºC
WindingsClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºC
Test voltage3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)
StandardsIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CE
Weight5,9 kg9,5 kg20 kg23,9 kg36 kg40,4 kg55 kg67 kg78 kg94 kg105 kg125 kg145 kg162 kg191 kg233 kg277 kg320 kg368 kg462 kg560 kg660 kg808 kg1000 kg1092 kg1658 kg
Dimensions (AxBxCxDxE)150x94x178x66x125 mm 6Ø180x94x203x76x150 mm 6Ø240x145x253x125x200 mm 9Ø300x124x303x115x250 mm 9Ø300x124x303x115x250 mm 9Ø300x164x303x155x250 mm 9Ø360x144x353x122x300 mm 11Ø360x164x353x142x300 mm 11Ø420x170x419x136x350 mm 11Ø420x190x419x156x350 mm 11Ø480x250x480x144x400 mm 11Ø480x270x480x164x400 mm 11Ø480x290x480x184x400 mm 11Ø480x310x480x204x400 mm 11Ø670x280x615x170x426 mm 13Ø670x300x615x190x426 mm 13Ø670x320x690x210x426 mm 13Ø670x340x690x230x426 mm 13Ø670x360x690x250x426 mm 13Ø785x550x880x460x472 mm 17Ø785x550x880x460x472 mm 17Ø785x550x880x460x472 mm 17Ø1016x550x1080x460x690 mm 17Ø1070x550x1220x460x690 mm 17Ø1070x550x1220x460x690 mm 17Ø1300x550x1350x460x800 mm 17Ø
Efficiency (%)-----95,795,896,596,596,795,996,396,696,994,99595,59696,696,897,297,598,298,298,498,5
Noise level (dB)-----< 45< 45< 45< 45< 45< 45< 45< 45< 45< 55< 55< 55< 55< 55< 55< 55< 55< 65< 65< 65< 65
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