Woodward EGCP-2 - Chapter 8. Definition of Terms

Manual 26086 EGCP-2 Engine Generator Control Package
Woodward 115
Chapter 8.
Definition of Terms
AMF Automatic Mains Failure. The ability of a control to
detect, and take action on a mains failure condition. The
EGCP-2, which has AMF capabilities, can be
programmed to sense a loss of mains condition based
on mains voltage, frequency, or a sudden load surge on
a generator operating in parallel with the mains. The
action taken by the EGCP-2 when it senses a mains
failure can be programmed for either an alarm action, or
a standby power action where all generators start and tie
to the load after the failed mains have been isolated
from that load.
Automatic
Control A control mode used by the EGCP-2 to activate several
automatic functions within the control. These functions,
which are dependent upon program setpoints and
system configuration, are Loss of Mains detection,
Automatic Sequencing, and Automatic dead bus closing,
Automatic control also effectively connects those EGCP-
2 units in automatic to the Local Operating Network
(LON).
Auto Switch A discrete input to the control which will initiate
automatic operation of the EGCP-2.
ATS Automatic Transfer Switch. A device which isolates the
mains upon a sensed fault in the mains, or through
manual operation. The ATS selects a secondary power
source, such as a diesel generator to supply the load
when the mains have been isolated. The ATS will also
re-connect the load to the mains when they are re-
established and stable. The EGCP-2 control has ATS
functions.
Audible Alarm An alarm condition used by the EGCP-2 for various
alarm settings which will cause the audible alarm relay
output to energize when reaching or exceeding the
alarm parameters.
Automatic
Sequencing The automatic addition, or subtraction of generators
to/from the load based on predetermined load levels
being crossed for specific periods of time. Automatic
sequencing is a function of a multiple generator system
which is operating in load sharing mode isolated from
the mains, of process control mode in parallel with the
mains.