Publicité
Les langues disponibles
Les langues disponibles
4.7.9. Galvanic isolation transformer.
The isolation transformer is built with separate windings and it has
an electrostatic shield between the primary and secondary windings,
which provides a high level of electrical noise attenuation (> 40 dB).
This option can be built in either inside the EMi3 series at-
tending to different operating conditioning or in a separate
case.
Among other functions a part from the isolation, it can act as:
Input or output voltage adaptor.
•
Configuration adaptor: delta-star or vice versa...).
•
And even combining the two above options depending on
•
the case.
As a result of the possible combinations, this document does
not consider the power standardization of tables 1 to 8 in the
assembling with isolation transformer, because the physical di-
mensions and weight will vary, but in any case its main feature
of galvanic isolation will be not be affected.
4.7.10. Other regulation ranges.
The voltage regulation ranges of the equipment are ±15 %.
Under request, the stabilizers can be supplied with different
ranges and up to ±30 %, and even without being symmetrical.
4.7.11. External manual Bypass panel.
The purpose of this option is to isolate the equipment and the
loads electrically. Therefore, the maintenance or fixing tasks
in the equipment can be done without any break in the power
supply of the protected system, also unnecessary risks to the
technical staff are avoided.
The basic difference between this option and the internal
manual bypass in the own stabilizer is the higher operating,
because it allows disconnecting the equipment from the own
installation completely.
In Fig. 14 is shown a Panel with input and output switches,
being able to have them or not according to the requested order.
USER'S MANUAL
Input circuit breaker
Manual bypass switch or
breaker
EMi3 power supply
Fig. 14. Manual bypass panel single line diagram including
input and output switches.
Output circuit breakers or
swicthes
• • •
Load power supply
63
EMi3 SERVOMOTOR VOLTAGE STABILISER
Publicité
