OPERATOR CONTROLS IN THE MACHINERY HOUSE

OPERATOR CONTROLS IN THE MACHINERY HOUSE

Power Control Room

The Power Control Room (PCR) encloses the electrical control components, preventing contamination from dirt, grease and dust. The segregation of control components into a room type module centralizes the responsibility of the electrician, thus improving maintenance.

The Power Control Room is supplied with a constant source of clean, filtered air which is under pressure to afford the ideal environment for the efficient operation of the electrical components.

The Starting Panel Controls used by the operator to start up and shut down the machine are located in the machinery house, near the center of the rear wall of the Power Control Room (PCR).

The following are the controls on the Starting Panel:

1-4. MG SET NO. 1 controls and indicators:

1. FIELD APPLIED - A green light that indicates the MG set motor fields have been applied.

2. VCB CLOSED - A green light that indicates the Vacuum Circuit Breaker for the MG set motor has closed.

3. START - A green pushbutton to start the MG set.

4. STOP - A red pushbutton to stop the MG set.

5-8. MG SET NO. 2 controls and indicators (same as for MG SET no. 1).

9. PHASE SEQUENCE - A green light that indicates that the phase sequence is okay.

10. START CYCLE - A green pushbutton that indicates its okay to start the M.G. sets.

11. BLOWERS - A pushbutton used to start or stop the motor blowers. A green light indicates the blower is operating.

12. AIR COMPRESSOR NO. 1 - A 2-position (OFF/ON) blue selector switch to turn the air compressor off or on for automatic operation.

13. OIL PUMPS - A pushbutton used to start or stop the oil circulating pump motors. A green light indicates the motors are running.

14. PROPEL OIL PUMPS - A green light that indicates that the propel oil pumps are operating.

15. SPACE HEATER - A 2-position (OFF/AUTO) green selector switch which turns the anticondensation heater off or on for automatic operation.

16. EXHAUST FANS - A pushbutton used to start or stop the MG set motor cooling fans. A green light indicates the fans are operating.

17-21. FILTER FANS NO. 1-5 - A pushbutton used to start the bleed duct fans and after a 5 second delay start each of the main filter fans. A green light indicates that the main fans are operating.