Oil Immersed Transformers
Oil immersed transformers offer a customize and reliable solution for the customer as the typical design allows many configurations and installations.
Thanks to their design, oil immersed transformers are used either for indoor or outdoor installations and in high polluted places.
HERMETIC
WITH CONSERVATOR
OIL IMMERSED CATALOG
ADVANTAGES
SAVING
Designed for easy installation with accessories properly wired and positioned to simplify the installation and maintenance operations in order to reduce the costs.
COMPACT DESIGN
Optimized dimensions and terminals arrangement for critical situation of space.
HIGH ENVIRONMENTAL RESISTANCE
Specific coating tretment and use of stainless steel bolts to withstand the most extreme environmental conditions.
HEAVY DUTY
Special design structure for seismic zones or for using in applications with high level vibrations.
ECO-FRIENDLY
Research and development of the most performing materials combined with an advanced design for high energy efficiency. Upon request, available with non-flammable or bio oil to reduce the environmental risk.
STANDARD ACCESSORIES
ACCESSORIES UPON REQUEST
DGPT2
Device used for keeping under control pressure, temperature and level of the liquid inside the transformer tank.
WINDINGS TEMPERATURE INDICATOR
Device used to measure the winding temperature in the liquid immersed transformers by indirect way using thermal image tecnology. It can be provided with max 4 SPDT switches.
DIAL TYPE THERMOMETER
OVERPRESSURE VALVE
In case of sudden and violent internal short circuit the insulating liquid produces a large volume of gas that should be evacuated in order to avoid the explosion of the transformer.
ELASTIMOLD (FIX PART)
The plug connection allows a very rapid connection of the cable to the transformer and can be touched when the transformer is under voltage.
VIBRATION DUMPERS
Accessories to be assembled under the wheels in order to reduce noise and structural resonances.
AUXILIARY TERMINAL BOX
Auxiliary terminal box centralizes the auxiliary services and protects the terminal board.
SILICAGEL BREATHER
The aim of this device is absorbing the humidity air that the transformer sucks during the thermal contraction of the liquid in order to guarantee a better dielectric capacitance.
BUCHHOLZ RELAY
This device intercepts and collects any gas bubble coming from the inner side of the transformer (indicating short circuit or other inner faults) and/or signals any oil leakage from the tank, giving an alarm signal or tripping one.
OIL LEVEL
This device gives a visual signal of the oil level in the conservator.
WINDINGS TEMPERATURE INDICATOR
Device used to measure the winding temperature in the liquid immersed transformers by indirect way using thermal image tecnology. It can be provided with max 4 SPDT switches.
DIAL TYPE THERMOMETER
ELASTIMOLD (FIX PART)
The plug connection allows a very rapid connection of the cable to the transformer and can be touched when the transformer is under voltage.
VIBRATION DUMPERS
Accessories to be assembled under the wheels in order to reduce noise and structural resonances.
AUXILIARY TERMINAL BOX
Auxiliary terminal box centralizes the auxiliary services and protects the terminal board.
ON LOAD TAP CHANGER
TESTS
To be performed according to IEC 60076-1:
-
- Measurement of winding resistance
- Measurement of voltage ratio
- Checking of phase displacement
- Dielectric routine tests
- Measurement of no-load losses and current
- Measurement of short-circuit impedance and load losses
- Test of accessories
Can be performed:
- Lightning impulse test
- Temperature rise test
- Determination of sound level
Can be performed:
- Short-circuit withstand test