Seakeeper 5500 GYRO, Installation Manual

Page: 49 / 66

TECHNICAL
BULLETIN
Product: Document #: Rev: Page:
ALL GYROS 90236 1 1 of 4
ELECTRICAL CONNECTIONS TO ALTERNATE POWER SOURCES
Seakeeper Stabilizers require the following power to operate:
DC Power: 24 VDC, 10 A
AC Power: 208 to 230 VAC, 50/60 Hz, 3 kW, Single-phase
On most boats, the required DC power will be directly available from the boat’s battery system and
AC power will be directly available from the boat’s generator. There are however, instances where
the boat’s DC or AC power sources do not directly match those required by the gyro stabilizer
system. This Technical Bulletin provides guidance on addressing these instances.
The boat has a 12 VDC battery system. How is 24VDC power provided to the gyro stabilizer?
If the boat has a 12 VDC battery system, the simplest means of providing 24 VDC power for the gyro
stabilizer is to install an off-the-shelf, marine rated, DC-to-DC converter. This converter should
meet the following specifications:
Input: 12 VDC
Output: 24 VDC, 10 A, 250 W
Example: Victron Energy Orion 12/24-10
The converter can be configured as shown in Figure 1. Insure that a qualified electrician does the wiring
and follows the installation and wiring instructions provided by the converter manufacturer.
C 12 VD
+
Circuit
+ 12V to 24V +
Circuit
+
Seakeeper
24VDC
Gyro
Batteries
Input
Breaker
DC/DC
Output
Breaker
Input
Control
-
- Converter -
-
J-Box
Figure 1: Installation for a 12 VDC Battery System
The boat has a 3-phase, 230 VAC generator. How is single-phase 230 VAC provided to power the
gyro stabilizer?
Since the gyro stabilizer only requires single-phase power, you can use any phase of the generator to
power the gyro stabilizer. See Figure 2. This shows wiring the gyro stabilizer to the U/V phase but it
could also be wired to the U/W or V/W phases. Generally when you have a 3- phase power source, you
want to balance any single-phase loads between the generator phases.
If possible, select a generator phase that optimizes this phase load balance when wiring the gyro
stabilizer to a 3-phase generator. Insure that a qualified electrician does the wiring and follows the
installation and wiring instructions provided by the generator manufacturer.