Only the best materials you get the best quality products. That’s why we choose to Emiltrafo accurately the components of our transformers, which come only from Italian suppliers. Thanks to very strict standards of quality and timely entry controls, we manage to ensure a finished product reliable and of long duration.
Copper wire
Both as it regards the wire and the strips of copper Emiltrafo uses copper annealed at 200 ° C to double layer.
Annealing
Degree of isolation
180 °C
Single
180 °C
Doble
200 °C
Single
200 °C
Doble
Settings for the primary
On all our transformers is possible to increase the primary and secondary windings with outlets adjustment of ± 5, ± 10, ± 15%, allowing to compensate particular variations of a network.
Ground terminal
In each transformer Emiltrafo gives the possibility to 'end user to ground via a ground terminal.
Eyebolts
Respecting the law, shall apply to its Emiltrafo transformers eyebolts whenever it exceeds the weight of 25 kg.
Name plate
For each transformer Emiltrafo applies a nameplate identifying:
Manufacturer name
Standards to which it responds transformer
Tensions at primary
Voltages of all secondary
Frequency
Vector group in the case of three-phase transformer
For each secondary refers its power
Weight transformer
Year of construction
Identification code (Each transformer is listed in our database)
Green dot for testing successfully passed
Once the testing, which is done on 100% of our products, a green dot is applied if the processor meets all the requirements of the standard in force.
Emiltrafo for isolation transformers for railway signaling, in addition to the green dot, also applied a personal stamp and accompanies each transformer with a test report and declaration of conformity.
Cooling channels
Emiltrafo studies, designs and manufactures the ability to insert special air channels in order to improve heat transfer between the transformer and the air. These accessories are mainly used for high power transformers (above 30 kVA)
We use only magnetic cores with low losses grain oriented in order to obtain a better performance of the transformer.
Emiltrafo provides, in each transformer, the electrostatic screen between primary and secondary thus avoiding the transfer of over-voltage / pulse voltages passing through the capacitive coupling between the windings.
Emiltrafo designs and manufactures transformers with thermal class F or H depending on whether the customer request that the standards.
THERMAL CLASS
Maximum temperature (°C)
Maximum ambient temperature reference (°C)
Maximum temperature rise (°C)
A
100
40
75
E
115
90
B
120
95
F
140
115
H
165
140
C
>165
>140
We expect different types of terminals that allow for easy processing and greater security especially by the fitter, ensuring maximum strength and excellent hardware cable.
When currents exceed certain orders of magnitudes we pass using brass screws and, for special applications, are used exclusively in nickel-plated brass screws.
Box
Protector breaker
Fuses and fuse holders
Case studies and electromagnetic
