Major advantages:

Compact design. They do not require significant area/volume to be installed.

Easy installation. They can be located straight next to the load, without need of special fitting-out or installations, like pits, firewalls and/or special foundations.

Very low fire risk. Building materials with autoextinguishing capacity, make unnecessary the use of special precautions against fire.

Minimum Maintenance. Free cooling liquid design. Only requires periodic cleaning and check of connection tightening.

High capacity in front of temporary overloads. The design with low current density windings and high thermic endurance resins permits a high capacity to withstahnd short-term overloads. Tables below show the behavoir according to room temperature status prior to the overload.

Important Power Reserve. The addition of forced ventilation allows the increase of the nominal power up to 40%.

Environmentally friendly. Once the transformer is completely manufactured its components are non-contaminant and in case of generalized room fire or a fire produced by the transformer, toxic gas emissions are insignificant.

Indoor installation

In order to use full capacity of the CRT transformer, the indoor installation in closed premises must
allow the intake of fresh air through S (m2) lower surface ventilation and a hot air outlet through S1(m2) upper surface ventilation. Both ventilation ducts are located on opposite walls with a height difference H (m). Lower duct (S) must be at the lowest level of the transformer.
(P) represents the total losses of the transformer (in kW), and the following condition must be complied:

When the required ventilation is not naturally feasible, the installation of a forced ventilation system will be necessary. The blowing device should have the capacity to remove at least 4.5 m3/minute of air , per each kW of total transformer losses (P).

Electric Distances.

The minimum safety distances from the High Voltage coils are

Isolation type	Minimum distance in mm
15 kV	220
36 kV	320

Standard
Off-load bridge tap-changer 2 x 2,5% of the primary nominal power.
Primary terminals for wire connection.
Secondary terminals for bar connection.
Lifting lugs.
Grounding terminals.
Bi-directional wheeled bogie.
Nameplate.

Optional
Primary air-tight and plug-in terminal connectors, ELATIMOLD type.
Pt 100 type thermo-resistors.
Programmable thermic central with output devices for alarm and forced ventilation start and check.
Forced air cooling system with nominal power increases of up to 40%.
Clamp box for auxiliary circuits.
Metal protection cabinets (I P 20, I P 21, I P 23 and I P 31 protections)