Edit Configuration
107
4.14.1.2 OUT OF SYNC
During parallel operation, the phase of both supplies is monitored. Being in parallel means that this phase
angle is zero degrees (0º).
If the angle exceeds the
Out of Sync Angle
for longer than the duration of the
Out of Sync Timer
, an electrical
trip alarm is generated taking the set off load and into the cooling timer, after which the set is stopped.
TROUBLESHOOTING
This section describes the most common causes for an
Out of Sync
alarm:
•
The
Bus Sensing
connections have not been made between the common generator bus and the
DSE module, or the bus sensing fuses have blown or have been removed.
•
The load switching device does not close quickly enough. Ensure the breaker closes within 100mS
of receiving the close signal.
•
The
Out of Sync
timer is set too low. If you raise this timer away from the factory setting of 200mS
(0.2s), ensure you understand why you are raising it!
•
Something external has caused the breaker to open, or has prevented it from closing. Typical
examples are external G59 relays and other equipment operating directly on the breaker to open it.
•
The breaker wiring ‘logic’ may not be correct, causing the breaker to ‘fire through’, where it triggers
the close mechanism, but the breaker doesn’t actually mechanically close, it re-opens again.
4.14.1.3 OTHER TIMERS
Options
Description
Synchronisation
Delay
Delays the synchronising process to allow the set to stabilise and power parasitic loads or
transformers (for instance) before the synchronising process begins.
Dead Bus Run On
Delays the
Load Demand Scheme
becoming active upon closing the breaker.
Mains Decoupling
Supervision
Delays the activation of the inbuilt 8600 Mains Decoupling detection when generator and
mains are in parallel.
Upon closing into parallel, the timer is activated. After the timer has expired, the mains
decoupling protection becomes live.
Interlock override off
Timer to delay the re-assertion of the interlock override.
Summary of Contents for DSE8810
Page 126: ...Scada 126 5 8 2 POWER Shows the module measurements of the supply power ...
Page 134: ...Scada 134 5 12 STATUS Shows the module s current status ...
Page 144: ...Scada 144 5 19 COMMUNICATIONS INFORMATION Shows the module s communication ports settings ...
Page 146: ...Scada 146 5 20 1 DATA LOG STATUS Shows the memory status of the data log allocated space ...
