FIGURE 3.2.3.1-1 GENERATOR CONTROL PANEL (GCP)

From the Generator Control Panel (GCP), the operator can manually start, stop, control, and operate the associated generator and feeder breakers. Additionally the operator can observe engine and generator parameters at the Generator Set Control GSC+ module. There are current protective relays installed in the GCP for generator and feeder breaker protection. All controls and indicators described in this section refer to the Generator 1 GCP and use the applicable component marking (“A” suffix) references. The following controls and indicators of the G1 GCP as illustrated in Figure 3.2.3.1-1 are:

a. System in Battleshort Mode Light (SBL)

This amber LED indicates that the PU is in Battleshort mode. This status is visible at both generator control panels, as it is common for both generators.

b. Primary Fuel Filter High Differential Alarm Light (HPFFDPL)

This amber LED indicates that the associated engine primary fuel filter has reached the high differential pressure setpoint and needs to be inspected and the filter replaced.

c. Secondary Fuel Filter High Differential Alarm Light (HSFFDPL)

This amber LED indicates that the associated engine secondary fuel filter has reached the high differential pressure setpoint and needs to be inspected and the filter replaced.

d. Primary Fuel Filter High Water Level Alarm Light (PFFHWLL)

This amber LED indicates that the associated engine fuel filter has reached the high level of water accumulated in the bowl setpoint and needs to be inspected and the bowl drained.

e. Oil Filter High Differential Alarm Light (HOFDPL)

This amber LED indicates that the associated engine oil filter has reached the high differential pressure setpoint and needs to be inspected and the filter replaced.

f. Air Filter High Differential Alarm Light (HAFDPL)

This amber LED indicates that the associated engine air filter has reached the high differential pressure setpoint and needs to be inspected and the filter replaced.

g. Fuel Tank High Level Alarm Light (HFTLL)

This amber LED indicates that the PU common fuel tank has a high fuel level. The fuel transfer pump needs to be checked to ensure that it is not running to prevent overflowing the tank.

h. Fuel Tank Low Level Alarm Light (LFTLL)

This amber LED indicates that the common fuel tank level is low. Verify the fuel transfer pump is running and make-up fuel is being transferred to the PU. Both generator sets can be operated at full load in this condition for a maximum period of 10 minutes. The control system will automatically shut down operating generator sets and prevent restarting until the fuel level reaches the minimum allowable level.

i. Hydraulic Tank Low Level Shutdown Light (HTLLL)

This red LED indicates that the hydraulic fluid level is low. The affected engine will shutdown immediately.

j. Generator Set Control (GSC +)

The GSC + provides control for the engine/generator and local monitoring for its associated generator set. All metering parameters are available from the GSC +. The GSC + monitors and controls many of the engine functions. Some of the more basic checks that the operator will be required to perform on a routine operating basis have been provided for convenience.

k. Generator Breaker Control Switch (BCSG1/G2)

These switches have momentary positions and one maintained position. There is also a target to indicate the last mechanical operation performed by the switch. These switches are used for local generator breaker control, setting up the breaker for automatic operation, and disabling breaker operation.

l. Feeder Breaker Control Switch (BCSF1/F2)

These switches have momentary positions and one maintained position. There is also a target to indicate the last mechanical operation performed by the switch. These switches are used for local feeder breaker control, setting up the breakers for automatic operation, and disabling breaker operation.

m. Generator Over Current Relay (50/51G1/G2)

There is a protective relay installed for each Generator Circuit Breaker (Gen 1 & Gen 2). Each microprocessor-based relay provides Phase Time Overcurrent (51P), Phase Short Circuit (50P), and Ground Fault Protection (50N, 51N). The relays are a draw-out design allowing easy replacement. Each relay has a LCD display and control keypad to allow the operator to program and monitor required parameters. The display, by default, scrolls through the phase currents, total current, and alarm log. The LCD display on each overcurrent relay provides a display of the current flow through each phase of the associated breaker. This overcurrent relay monitors the common sensing return of their phase sensing current transformers. This provides each breaker with ground fault protection. n. Feeder Over Current Relay (50/51F1/F2)

There is a protective relay installed for each Feeder Circuit Breaker (F1 & F2). Each microprocessor- based relay provides Phase Time Overcurrent (51P), Phase Short Circuit (50P), and Ground Fault Protection (50N, 51N). The relays are a draw-out design allowing easy replacement. Each relay has a LCD display and control keypad to allow the operator to program and monitor required parameters. The display, by default, scrolls through the phase currents, total current, and alarm log. The LCD display on each overcurrent relay provides a display of the current flow through each phase of the associated breaker. This overcurrent relay monitors the common sensing return of their phase sensing current transformers. This provides each breaker with ground fault protection.

o. Emergency Stop Push Button (ESPB)

This switch is the Emergency Stop Pushbutton. It shuts down the associated engine and prevents restarting of the associated engine.

p. Engine Control Switch (ECS)

These rotary snap switches have four maintained positions. The switch may be rotated 360° in either direction. The switch is used for local operation of the generator, setting up the generator for automatic operation, and disabling generator operation.

q. Panel Light Switch (PLS)

This switch is used to turn on the panel lights on the panel, used for nighttime operations. r. Frequency Adjust Rheostat (FAR)

This device is a 10-turn potentiometer that is used to adjust the frequency during initial set up. s. Voltage Adjust Rheostat (VAR)

This device is a 5-turn potentiometer that is used to adjust the voltage during initial set up. t. Circuit Breaker CLOSED (RED) LED:

• Generator 1 (G1CL) • Generator 2 (G1CL) • Feeder 1 (F1CL) • Feeder 2 (F2CL)

This red LED indicates that its associated breaker is closed. u. Circuit Breaker OPEN (GREEN) LED

• Generator 1 (G1OL) • Generator 2 (G2OL) • Feeder 1 (F1OL) • Feeder 2 (F2OL)

3.2.3.1.2 DETAILED DISCUSSION OF CONTROLS AND INDICATORS