|  Tri
phase transformer and autotransformer
Transformer
Applied in the feeding of tri-phase circuits offers
galvanic isolation, limitation
of capacity, tension elevation or reduction and supressive
in transistories not linears of the installation.
A transfomer with a primary coiling, being the secondaru
electrically isolated from the primary.
According to the client's specification we made with
taps of regularization in the primary ones or several
secondaries. The connection types are according the
project and technical suitability.
Autotransformer
Applied in the feed of tri-phase circuits which installation
is not necessary the net isolation in the circuit
to be used, tension elevation or reeduction.
It has a primary and a secondary standard coiling
being possible its made with one or more taps of different
tensions. Its linking is a star and the neuter acessible.
At the request, these transformers and autotransformers
can be supplied with whole incapsuled bobbins in epoxi
or with (wrapper) mettalic protection box for the
most different types of protection (IP).
Characteristics:
| • Main technical
and linking informations of easy identification; |
| •
Linking endings through screws or sindal types
connectors; |
| • Simple set
up fixing by the basis in metallica structure; |
| •
Dry isolation for the sheltered installation; |
| • Assayed individually. |
Informações técnicas:
| Standard |
Make and test NBR
5356 and 5380 |
| Isolation
tension |
0,6 KV |
| Frequency |
50 or 60 Hz |
| Temperature
class |
"B"
(130ºC) ou "F" (155ºC) |
| Ambient temperature |
Maximum 45ºC, minimum -10ºC |
| Limit
of elevation of temperature in the coiling |
80ºC ou
105ºC for classes "B" e "F",
respectively |
| Protection grade |
IP - 00 |
| Applied
tension at industrial frequence, 1 min. |
2,5 KV effective |
| Over tension limit |
10% about detailed, mainteined
the nominal current in the coilings. |
| Altitude |
Up to 1000m above the sea level |
|
