Power Failures

There are two sources of power to the Seakeeper 16/18:

• 24 VDC powers the Seakeeper control electronics and seawater pump.
• 208 – 230 VAC powers the Motor Drive Box to drive the motor inside the Seakeeper.

These are supplied on Cables 1, 2, and 8 which are shown on Drawing No. 90539 – Seakeeper 16/18/12HD Cable Block Diagram.

The Motor Drive Box contains hazardous voltage and the cover should not be removed while the flywheel is spinning and the AC input voltage is present. This high voltage exists even if the flywheel is coasting down and the supply voltage has been shut off. The flywheel must be at 0 RPM and AC input power disconnected for at least 10 minutes prior to any service work on the motor drive box.