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SME2-IS - Manual - 06- 2021
FUNCTIONAL CHARACTERISTICS
— GD management function
UPG function
The UPG (generator peripheral unit) has two purposes:
• To determine, locally, when the voltage control trips by sending a power factor threshold; the aim
is to induce a variation in the reactive power exchanged at the point of delivery. This mode is acti-
vated when a given voltage threshold is exceeded
• To request assistance from the central system (VCS – Voltage Control System) if local voltage
control is ineffective
The UPG function enables both generator management - and consequently voltage regulation along
the line - and remote disconnection of the producer (command towards the PI) or inhibits the tripping
of its own general protection (PG).
Installation methods
Interface methods
The interface with the producer is provided by the router/up located in the substation, using the
following connection scheme:
TATV
PG
PI
M
ENEL SUBSTATION
USER SUBSTATION
Point of delivery
RGDM-I
DMC7300
DG Position
Distributor User
PG start
System disconnection
Extended function threshold set 8:1
Generation remote disconnection
DI Position
Available
Available
Reduce user load
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