NVIC 17-14 Task 6.1.D

Operate electrical, electronic and control systems

OICEW-B1.1 Basic configuration and operation principles of the following electrical, electronic and control equipment

Preparing, starting, paralleling and changing over generators

On a vessel of at least 1,000 HP, on a simulator, or in a laboratory,

the candidate plans for and connects the ship’s service generator to the main switchboard, and takes original on-line unit off the board.

The candidate takes the following actions, describing them as they are performed:

1. Ensures the plan reflects proper sequence of actions, is complete, and conforms to the requirements of manufacturer’s instructions and ship’s procedures;

2. Pre-inspects and starts the generator prime mover;

3. Verifies that automatic voltage regulator is at recommended voltage and manually adjusts as necessary;

4. Turns on synchroscope and observes direction and speed of rotation;

5. Manually adjusts generator speed so that the scope rotation is moving slowly in the “fast” direction;

6. Manually closes the in-coming unit’s circuit breaker to stop the synchroscope at the 12 o’clock position; turns off scope;

7. Divides load simultaneously and evenly between on-line and in-coming units by observing available switchboard meters;

8. Continues to shift load between unit to remain on-line and off- going unit, observing available switchboard meters;

9. Continues to manually reduce the off-going unit load until off- going unit circuit breaker trips, or trips breaker manually as the kW load of off-going unit approaches 0; and

10. Takes proper action to prevent safety and pollution violations.