SGC
1.2 FUNCTIONS
1.2.1 CONTROL FUNCTIONS
The SGC device has a wide range of control functions to meet any customer requirements.
1.2.1.1 EVENT/FAULT LOG
Every event detected by the SGC is stored in a non-volatile memory.
Up to 100 events are stored, with associated information (depending on event type).
The main types of events stored include:
●
Changes on internal state.
●
Pickups, trips and resets of the protection functions.
●
Changes on every digital input.
●
Switchgear commands.
1.2.1.2 CIRCUIT BREAKER SUPERVISION
The correct operation of the circuit breaker is guaranteed by these functions:
●
Open/close operation monitoring.
●
Maneuver counter.
●
∑
kA
2
counter.
1.2.1.3 TIME SYNCHRONIZATION
Time is synchronized via the communication protocol, ensuring time stamps coherence between primary
and secondary stations.
The SGC also provides an internal real time clock, so timekeeping is accurate even when the power or
communication link is down.
1.2.1.4 SWITCHGEAR CONTROL
Several parameters can be programmed to tailor the needs of the specific medium voltage equipment
(open/close operation time, latch time, etc.)
There are plenty of digital inputs and outputs fully configurable and available to the user for switchgear
monitoring or other equipment such as: breaker position, fuse protection, personal presence, etc...
3
00110E4
Summary of Contents for SGC Series
Page 31: ...6 FUNCTIONS 00110E4 EDP 26 Illustration 8 VPD unit logic diagram ...
Page 53: ...10 SCHEMATICS 10 SCHEMATICS 00110E4 EDP 48 ...
Page 54: ...SGC 49 EDP 00110E4 ...
Page 55: ...10 SCHEMATICS 00110E4 EDP 50 Illustration 13 Connection diagram ...
Page 56: ...SGC Illustration 14 SGC195 Connection diagram 51 EDP 00110E4 ...
Page 58: ...SGC 11 SIZE 53 EDP 00110E4 Drawing 1 Front and side views of SGC180 and SGC195 devices ...
Page 59: ...11 SIZE Drawing 2 Top and bottom view of SGC180 device 00110E4 EDP 54 ...
Page 60: ...SGC Drawing 3 Top and bottom view of SGC195 device 55 EDP 00110E4 ...