TTAET Transformer for tunnels

Product catalog summary

Overview: The document is a technical leaflet for TTAET Dry Type Transformers, specifically designed for outdoor use in expressway and railway applications. These transformers are available in power ratings of 50, 125, and 160 kVA and are compliant with NFC 52 410 standards.

Specifications:

Primary Voltage: 5500 V with an insulation level of 7.2 kV.
Secondary No-load Voltage: 410 V with an insulation level of 1.1 kV.
Coupling: Dyn 11.
Dielectric: Dry type cast resin.
Protection Degree: Water-proof treated coils, capable of withstanding short-term water leakage.

Operating Conditions:

Water splash protection from all directions with a cover rated at IP25.
MV Input: Three-phase terminal with a maximum current of 80 A and cable diameter of 44.5 mm.
H.V. Protection: Includes 3 HPC fuses with a breaking capacity of 15 kA.
L.V. Output: 4-core single-phase cable with varying cross-sections depending on power rating.
L.V. Protection: No direct protection but includes thermal probes for thermal protection.

Dielectric Test:

Impulse withstand: 60 kV wave 1/50.
Power frequency withstand: 22 kV-50 Hz for 1 minute.

Technical Data:

Power Output: 40, 100, and 128 kVA for 50, 125, and 160 kVA transformers respectively.
Iron Loss: 300, 520, and 750 W.
Copper Loss: 1100, 1550, and 2200 W.
Impedance S.C.: 4% for 50 and 125 kVA, 4.5% for 160 kVA.
Vector Group: Dyn11 for all models.

Additional Information: The document includes details on the supply of MV terminals, un-sealed plugs, and a terminal assembly instruction manual. The manufacturer reserves the right to modify models without prior notice.

Contact Information: Distributed by AUGIER SA, located in Carros Cedex, France. Contact details include phone and fax numbers, as well as an email address and website.

Catalog excerpts

Technical leaflet TTAET Dry type Transformers

Open the catalog to page 1

TTAET - 50, 125, 160 kVA Type Outdoor three-phase transformer for three-phase network, casted in resin,specially treated against corrosion. It is specially designed for expressway and railway. Protection degree: transformer coils are water-proof treated, it can withstand water leakage for short period. Primary Voltage : 5500 V (1) Primary winding insulation level : 7,2 kV Secondary no-load voltage : 410 V (2) Secondary winding insulation level : 1,1 kV Coupling : Dyn 11 Dielectric : Dry type cast resin Power rating : 50 - 125 - 160 kVA Nominal power according to standard for public lighting :...

Open the catalog to page 2