Tyco Galaxy SC Controller User Manual

Tyco Electronics Galaxy SC Controller J85501F-1
Issue 13 February 2001 Acceptance Testing 5 - 7
High Voltage
Alarm/High
Voltag e
Shutdown
Alarm
(Parallel
Rectifiers)
HV tests can be completed by either raising the plant voltage above the
thresholds set for HFV (High Float Voltage) and HV (High Voltage Shut
Down) or by changing the thresholds for these conditions to make them
active. (HFV is an alarm-only which can be used to notify users of an
impending HV condition before the need for a shutdown arises.) Raising
the plant voltage is only recommended for new installations being tested
with a dummy load.
New Installations
(Parallel
Rectifiers)
1. Disable Load Share (if equipped) in each of the plant rectifiers and
add a dummy load to the plant bus of between 10 and 50% of any
single rectifier capacity. Place all rectifiers on line. Adjust outputs
to plant float voltage.
2. Choose a rectifier to test and raise its output voltage slowly until it
“steals” the total plant load from the remaining rectifiers. Continue
raising its voltage until the plant HFV alarm activates. Note the
voltage at which this occurs and verify that the Power Minor relay
has activated and the RECT and Minor LEDs are active.
3. Continue raising the rectifier voltage until it reaches its
current-limit setting or HVSD occurs. If it reaches current limit,
lower the test load until plant voltage raises to the HVSD level.
Verify that the HV and Power Major relays have activated and the
RECT and Major LEDs are active. Only the test rectifier and any
other plant rectifiers carrying 10% or more of their load capacity
should shut down, allowing the plant voltage to drop back to float
with the remaining plant rectifiers picking up the load.
If BJB SW202-7 and the software switch at the Front Panel: Main
→ Config → Plant → AUTO RST (Basic controller) or Main →
Config → Rect Mngr → Rect Cntrl → AUTO RST (Intelligent
controller) are enabled, after 5 seconds, the test rectifier and any
others that were shut down should restart and, following walk-in,
steal the load back raising the plant voltage again until a second
shut down occurs. Again, the remaining plant rectifiers will pick
up the load as the voltage drops back to float, but the test rectifier
and any others that were shut down will remain locked out, with
RFA and Plant Minor alarm relays and RECT and Minor LEDs
active on the controller. A second auto restart will be performed
after five minutes, then the failed rectifiers will remain locked out.
4. Reduce the output voltage adjustment of the test rectifier and
restart it from the Front Panel interface with the path: Main →
Maint Oper → RECT RST.

Tyco Galaxy SC Controller Specifications

General

Brand	Tyco
Model	Galaxy SC Controller
Category	Controller
Language	English