FORMS

1.     ENCLOSED SPACE ENTRY

2.     HOT WORK PERMIT

3.     COLD WORK PERMIT

4.     PERMIT TO WORK ON ELECTRICAL CIRCUITS

5.     PERMIT TO WORK ON PIPE LINES AND PRESSURE VESSELS

6.     UNDERWATER WORKING PERMIT

7.     WORKING ALOFT PERMIT

8.     PERMIT TO ALLOW SMALL CRAFTS ALONGSIDE

9.     ARRIVAL CHECKLIST FOR ENGINEERS

10. DEPARTURE CHECKLIST FOR ENGINEERS

11. EMERGENCY CONTACT NUMBER FORM

12. NOTICE OF LANDING WASTE

13. MONTHLY SAFETY MEETING

14. PUBLICATIONS HELD ONBOARD SHIPS

15. EMERGENCY INSTRUCTION CARD

16. BREATHING APPARATUS ENTRY LOG

17. LOCK OUT TAG OUT LOG

18. DRILL AND EXERCISE REPORT

19. ONBOARD FAMILIARISATION FORM

20. NEAR MISS REPORT

21. RISK ASSESSMENT FORM

NAVIGATION FORMS AND CHECKLISTS

1.     PASSAGE PLAN PREPARATION CHECKLIST

2.     SEA PASSAGE PLAN

3.     ROUTE ASSESSMENT FORM

4.     UNDER KEEL CLEARANCE FORM

5.     PILOT CARD

6.     SHIP TO SHORE MASTER/PILOT EXCHANGE FORM

7.     SHORE TO SHIP PILOT/MASTER EXCHANGE FORM

8.     NAVIGATION AUDIT FORM

9.     EMBARK/DISEMBARK PILOT CHECKLIST

10. MASTER PILOT EXCHANGE OF ESSENTIAL INFORMATION RECORD AT BOARDING

11. BRIDGE FAMILIARISATION CHECKLIST

12. PREPARATION FOR SEA CHECKLIST

13. PREPARATION FOR ARRIVAL IN PORT CHECKLIST

14. NAVIGATION CHECKLIST IN DEEP SEA (OPEN WATER)

15. NAVIGATION CHECKLIST IN RESTRICTED VISIBILITY

16. NAVIGATION CHECKLIST IN COASTAL WATERS

17. NAVIGATION CHECKLIST IN ADVERSE WEATHER

18. NAVIGATING IN ICE CHECKLIST

19. CHANGING OVER NAVIGATION WATCH CHECKLIST

20. ANCHORING AND ANCHOR WATCH CHECKLIST

21. HELICOPTER OPERATIONS CHECKLIST

            AC Generator

A 3 phase ac generator is called an "Alternator". Like a DC generator, it also consists of two windings namely, (1) Field Winding  (2) Armature Winding.

However, unlike in a DC Generator, its poles are on rotor and armature winding is on stator.

 

Field Winding

The field winding on poles requires DC current which is supplied by using a pair of slip rings on the shaft and a pair of stationary carbon brushes. The number of poles is always even. All the poles are identical and symmetrically fitted on the rotor with alternate polarities  i.e., a "North" pole is followed by a "South" pole which in turn is followed by another "North" pole and so on.

Armature Winding

The stator is made up of thin laminations of alloy. Laminated structure is used to reduce magnetic losses and also to obtain convenience in the construction. These laminations (also known as stampings) have been punched around the internal periphery to produce slots. Copper windings are placed in these slots. It is known as "Armature Winding" and "Stator Winding". It is a three phase winding generally in 'star'. All the three terminals of the star connection, including the fourth terminal the neutral are brought out in the terminal box of the machine.
 

AC GENERATOR

 

Working

The generator is driven by its engine in the correct direction at its rated speed (RPM). DC Field current is then supplied to its field winding through the brush and slip ring arrangements. The poles produce sufficiently strong magnetic flux. Since the poles are rotating, the magnetic field is also rotating. The armature windings in the stator windings cut the flux of the rotating poles. Therefore electric power is produced in the stator winding. Note that the frequency of the electric power is kept constant at 50 Hz (or at 60 Hz) by keeping the generator speed constant.