GE Industrial Solutions Galaxy Verification - Manual (Page 35)

Galaxy Power System Verification Procedures
Issue 3 January 2008 Galaxy SC Controller Performance Verification Procedures 2 - 23
Energy Management
Overview The Energy Management algorithm exercises all rectifiers on a monthly
basis, guaranteeing that every connected rectifier is operated for at least
24 hours each month. All connected rectifiers that have not operated a
total of 24 hours in the previous monthly cycle will be turned on by the
controller on the first Wednesday of the next month at 10:00 a.m. for 24
hours.
Energy Management is available only in the intelligent controller and
must be enabled in both hardware and software. Enable the hardware
switch by setting SW204-1 on the BJH board to 1. From the front panel
follow the path: <MENU>
→ CONFIG → RECT CTR → EFFIC to
enable the software switch. Energy Management can be enabled in
EasyView by following the path: CONFIGURE
→ PLANT →
HARDWARE AND SOFTWARE.
Energy Management is enabled only if all connected rectifiers provide
a load signal to the controller via the VI (Voltage proportional to Load)
circuit within each Lucent J855-series or J874-series rectifier control
circuitry. Controllers using the BJC2 rectifier interface packs, used with
rectifiers that do not issue VI signals, instead monitor the mV signal
directly off the rectifier load shunt. In either case, the Energy
Management algorithm requires that the individual rectifier loads be
reported to the controller accurately. Verify that the load reported via
front panel or EasyView path against each rectifier agrees with the
actual load calculated from its shunt mV reading or read from its front
panel. If necessary, adjust the VI circuit of each rectifier as outlined in
the appropriate rectifier product manual. Accuracy of 2% should be
achieved.
Note: It may not be necessary to perform the following Energy
Management test procedure if the rectifiers used are Lineage Power
serial rectifiers. Also, if a TR (terminate rectifier) status is observed on
the LED display, it indicates that the Energy Management feature is
functioning.