Dry transformer

Product catalog summary

Product Overview: This document is a product leaflet for dry type transformers, including single-phase, three-single, three-two, and three-phase transformers, with voltage classes ranging from 1.1 kV to 7.2 kV. These transformers are designed for installation in dry, air-conditioned rooms or PTI AUGIER type substations.

Electrical Characteristics:

Power Ratings: Single-phase (5-50 kVA), Three-single and Three-two (16-160 kVA), Three-phase (16-630 kVA).
Insulation Voltage: 1.1 kV, 3.6 kV, 7.2 kV.
Primary and Secondary Voltages: Standard voltages include 230 V, 400 V, 950 V, 3200 V, 5500 V, and 6600 V.
Couplings: Standard and specific couplings available, including step-down Dyn11 and step-up YNd1.

Construction and Design:

Magnetic circuits made from low-loss crystal sheet metal.
Copper or aluminum windings with fungicide varnish impregnation.
Cooling via natural air (NA).
Designed for use in temperatures ranging from -15°C to +40°C.

Standards and Testing: Conforms to NFC 17200, NFC 52100, and CEI 76 standards. Routine and specific tests are conducted on each transformer.

Accessories and Options:

Standard accessories include voltage tapping, earthing terminals, lifting lugs, and rollers for higher power ratings.
Optional accessories include painted enclosures, HRC fuses, thermal protection, and tap changers.

Size and Weight: Detailed dimensions and weights are provided for both IP00 frame and IP21 enclosure presentations, varying by power rating.

Notes: Transformers are not reversible, and step-up transformers are designed to limit inrush currents. The manufacturer reserves the right to alter information without prior notice.

Catalog excerpts

PRODUCT LEAFLET DRY TYPE TRANSFORMER Single-phase, three-single, three-two and three-phase transformers 1.1 kV to 7.2 kV classes

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Dry Type Transformers Transformers meant to be installed in a dry and air conditioned room or in a PTI AUGIER type substation. ELECTRICAL CHARACTERISTICS : Power rating and type : Single-phase : TMAI : 5 - 7.5 - 10 - 16 - 25 - 32 - 50 kVA Three-single : TTMAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 kVA Three-two : TTBAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 kVA Three-phase : TTAI : 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 - 200 250 - 400 - 500 - 630 kVA Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV Primary voltage : Every voltage compatible with insulation voltages above....

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CONSTRUCTION : Magnetical circuits with crystal made sheet metal, oriented, with low losses. Copper or aluminium windings, impregnated vacuum with a fungicide varnish, class H impregnation. Metallic flanges. Ironed chassis with rollers. Wooden terminals plate bakelised. Cooling Use Color : in natural air : NA. : use in dry, air conditioned rooms, at a room temperature of -15 °C ; + 40°C. : RAL 7035 gray. STANDARDS AND TESTS : Conforms to NFC 17200 - NFC 52100 - CEI 76 standards. Other specifications on request. Routine tests U.T.E made on each transformer, specific tests on request.. Dry type...

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Three-phase dry Type Transformers TTAI ELECTRICAL CHARACTERISTICS : Power rating: 16 - 25 - 32 - 50 - 63 - 80 - 100 - 125 - 160 - 200 - 250 - 400 - 500 - 630 kVA Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV Primary voltage : Every voltage compatible with insulation voltages above. Usually standard voltages are : 230 V - 400 V - 950 V - 3200 V - 5500 V and 6600 V. Secondary load voltage : 400 V - 950 V - 3200 V - 5500 V and 6600 V. Couplings : Step-down Dyn11 - Step-up YNd1, other couplings on request. CONNEXION : Primary and secondary connexions on copper plates, by the upper side of the transformer....

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TTAI Dry Transformers SIZES-WEIGHT (mm) - PRESENTATION ON IP00 FRAME - STEP DOWN TRANSFORMER Power rating (kVA) SIZES-WEIGHT (mm) - PRESENTATION WITH IP21 ENCLOSURE - STEP DOWN TRANSFORMER Power rating (kVA)

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Single-phase Dry Type Transformers TMAI ELECTRICAL CHARACTERISTICS : Power rating: 5 - 7,5 - 10 - 16 - 25 - 32 - 50 kVA Insulation voltage : 1.1 kV - 3.6 kV - 7.2 kV Primary voltage : Every voltage compatible with insulation voltages above. Usually standard voltages are : 230 V - 400 V - 950 V - 3200 V. Secondary load voltage : 230 V - 950 V - 3200 V. Couplings : Standard : single-phase transformer : Ii0 CONNEXION : Primary and secondary connexions on copper plates, by the upper side of the transformer. STANDARD ACCESSORIES : Voltage tapping adjustable out of voltage : +/- 2,5 % ou +- 5% sorties...

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TMAI Dry Transformers SIZES-WEIGHT (mm) - PRESENTATION ON IP00 FRAME Power rating (kVA) SIZES-WEIGHT (mm) - PRESENTATION WITH IP21 ENCLOSURE Power rating(kVA)

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