ASEA DBT12 User manual

Operations Manual
for the ASEA Power Systems
Models DBT12, DBT15 and DBT24
Dock Boost Transformer Gen. 2
P/N: 628051
Revision: A
Revised 6/2/21

CERTIFICATION
ASEA Power Systems certifies that this product has been thoroughly tested and
inspected and found to meet or exceed its published specifications when shipped
from the factory.
WARRANTY
ASEA Power Systems warrants each unit to be free from defects in material and
workmanship. For a period of one year after purchase, ASEA Power Systems will
repair or replace any unit returned to our plant, by the original buyer, with shipping
both ways prepaid by the buyer.
ASEA Power Systems is not responsible for consequential damage arising from the
use of its equipment. It does not apply to extensively modified or non-standard
systems. Debit memos for returned units are not accepted, and will cause return
of the unit without repair.
LIFE SUPPORT POLICY
ASEA Power Systems does not authorize the use of any of its products or systems
for use as an AC voltage supply (source) for life support systems. Life support
systems are devices which support or sustain life, and whose failure to perform,
when properly used in accordance with this Operations Manual, can be reasonably
expected to result in significant injury to the user.

DBT12/15/24 Operations Manual....3
1. USING THIS MANUAL
This manual has been written as an Operations Manual. Installation, operations, and preventative
maintenance are covered in detail. This manual covers the following models:
DBT12 12 kVA Dock Boost Transformer P/N 628009
DBT15 15 kVA Dock Boost Transformer P/N 628002
DBT24 24 kVA Dock Boost Transformer P/N 628004
For higher power applications Trident Systems combine two DBT12/15/24 units and one
Paralleling Master DBT12P/15P/24P unit to produce the following models:
Trident 24 24 kVA Trident System (2x DBT12 + 1x DBT12P) P/N 628008
Trident 30 30 kVA Trident System (2x DBT15 + 1x DBT15P) P/N 628013
Trident 48 48 kVA Trident System (2x DBT24 + 1x DBT24P) P/N TBD
It is important that the operator reads this manual prior to installing and operating the unit. A
thorough understanding of the information covered in this manual is required for proper
installation and operation.
If any questions arise while reading this manual, the user is encouraged to contact ASEA Power
Systems. ASEA Power Systems is located at:
ASEA Power Systems
15272 Newsboy Circle
Huntington Beach, CA. 92649
Phone [phone]
FAX [phone]
Web: www.aseapower.com
Email: [email protected]

DBT12/15/24 Operations Manual....4
TABLE OF CONTENTS
1. USING THIS MANUAL .................................................................................................... 3
2. SAFETY NOTICES............................................................................................................ 6
3. INTRODUCTION TO THE DBT12/15/24 ........................................................................ 8
4. SPECIFICATIONS ............................................................................................................. 9
4.1. ELECTRICAL SPECIFICATIONS ....................................................................... 9
4.1.1. Input Service ............................................................................................... 9
4.1.2. Output Service ............................................................................................ 9
4.1.3. Control and Status ..................................................................................... 10
4.2. PHYSICAL SPECIFICATIONS .......................................................................... 10
4.2.1. Mechanical ................................................................................................ 10
4.2.2. Environmental ........................................................................................... 10
5. INSTALLATION ............................................................................................................. 11
5.1. MECHANICAL INSTALLATION ...................................................................... 12
5.2. ELECTRICAL INSTALLATION ........................................................................ 21
5.2.1. Shore / Ship Power Connections............................................................... 22
5.2.2. Grounding ................................................................................................. 24
5.2.3. Service Port ............................................................................................... 25
6. OPERATION .................................................................................................................... 26
6.1. POWER TURN-ON PROCEDURE ..................................................................... 26
6.2. OPERATION ........................................................................................................ 28
6.3. TURN-OFF PROCEDURE .................................................................................. 29
6.4. AUTO RESTART FEATURE .............................................................................. 30
7. TRIDENT SYSTEM ......................................................................................................... 31
7.1. PARALLELING MASTER PHYSICAL SPECIFICATIONS ............................ 32
7.1.1. Mechanical ................................................................................................ 32
7.1.2. Environmental ........................................................................................... 32
7.2. PARALLELING MASTER MECHANICAL INSTALLATION ........................ 32
7.3. TRIDENT SYSTEM ELECTRICAL INSTALLATION ..................................... 37
7.4. TRIDENT SYSTEM OPERATION ..................................................................... 43
7.4.1. Power Turn-On Procedure ........................................................................ 43
7.4.2. Parallel Mode ............................................................................................ 45
7.4.3. Two Singles Mode .................................................................................... 45
7.4.4. Slave 1 or Slave 2 Modes.......................................................................... 46
7.4.5. Standby Mode ........................................................................................... 46
7.4.6. Turn-Off Procedure ................................................................................... 47
8. TROUBLESHOOTING AND DIAGNOSTICS .............................................................. 48
8.1. COMMON PROBLEMS ...................................................................................... 48
8.2. SOFT-START INHIBIT ....................................................................................... 48
8.3. ABNORMAL OPERATION ................................................................................ 49
8.3.1. Warnings ................................................................................................... 49
8.3.2. Faults and Restart ...................................................................................... 49
8.3.3. Failure and Warning Messages ................................................................. 50
8.4. BYPASS AND 1:1 MODES ................................................................................. 51
8.5. GATHERING DATA ........................................................................................... 51
9. MAINTENANCE ............................................................................................................. 52

DBT12/15/24 Operations Manual....5
10. INTERNATIONAL POWER FORM REFERENCE ....................................................... 53
LIST OF FIGURES
Figure 1: DBT12/15/24 Block Diagram ......................................................................................... 8
Figure 2: DBT12 Mechanical Outline .......................................................................................... 13
Figure 3: DBT12/15 Deck-Mounting Pattern ............................................................................... 15
Figure 4: DBT15 Mechanical Outline .......................................................................................... 16
Figure 5: DBT24 Mechanical Outline .......................................................................................... 18
Figure 6: DBT24 Deck-Mounting Pattern .................................................................................... 20
Figure 7: Front Cover Removal .................................................................................................... 21
Figure 8: Shore / Ship Power Terminals ....................................................................................... 23
Figure 9: Power Cables Entering from the Bottom ...................................................................... 23
Figure 10: Power Cables Entering from the Right Side ............................................................... 24
Figure 11: Controls and Indicators ............................................................................................... 26
Figure 12: Voltage Chart Indicating the Gain Selection Hysteresis ............................................. 28
Figure 13: DBT12/15P Mechanical Outline ................................................................................. 33
Figure 14: DBT12/15P Deck-Mounting Pattern ........................................................................... 35
Figure 15: Paralleling Master Installed to the right of the first Slave DBT .................................. 36
Figure 16: Paralleling Master Installed on top of the first Slave DBT ......................................... 36
Figure 17: Trident System Power Connection Diagram for Split-Phase Installations ................. 37
Figure 18: Trident System Power Connection Diagram for Single-Phase Installations ............... 39
Figure 19: Trident System Paralleling Cable Connection Diagram ............................................. 41
Figure 20: Bypass Switch Location. ............................................................................................. 51

DBT12/15/24 Operations Manual....6
2. SAFETY NOTICES
The DBT12/15/24 is capable of transferring large amounts of electrical energy very quickly.
International symbols are used throughout this manual to stress important information. Read the
text below each symbol carefully and use professional skills and prudent care when performing
the actions described by the text.
THE CAUTION SYMBOL (TRIANGLE ENCLOSING AN
EXCLAMATION POINT) INDICATES A CONDITION THAT COULD
SERIOUSLY DAMAGE EQUIPMENT AND POSSIBLY INJURE
PERSONNEL. CAUTIONS WILL BE PRESENTED IN THIS FORM.
ALL CAUTIONS SHOULD BE RIGOROUSLY OBSERVED.
THE WARNING SYMBOL (TRIANGLE WITH A LIGHTNING BOLT) IS
USED TO SIGNAL THE PRESENCE OF A POSSIBLE SERIOUS, LIFE
THREATENING CONDITION. A CONDITION THAT IS HAZARDOUS
TO BOTH PERSONNEL AND EQUIPMENT WILL BE ISSUED AS A
WARNING. ALL WARNINGS WILL BE PRESENTED IN THIS FORM.

DBT12/15/24 Operations Manual....7
 THIS EQUIPMENT CONTAINS HIGH ENERGY, LOW IMPEDANCE
CIRCUITS! LETHAL POTENTIALS ARE CONTAINED WITHIN THE
UNIT EVEN WHEN IT IS APPARENTLY NOT OPERATING.
 CARE MUST BE EXERCISED WHEN SERVICING THIS EQUIPMENT IN
ORDER TO PREVENT SERIOUS OPERATOR INJURY OR EQUIPMENT
DAMAGE.
 DO NOT WORK ON OR OPERATE THIS EQUIPMENT UNLESS YOU ARE
FULLY QUALIFIED TO DO SO. NEVER WORK ALONE.
 THE EQUIPMENT IS NOT IGNITION RATED, IT MUST NOT BE
OPERATED IN AREAS WHERE COMBUSTIBLE GASES MAY
ACCUMULATE.
 DO NOT REMOVE THE SHORE CORD FROM THE DOCK PEDESTAL
WITHOUT FIRST OPENING THE DOCK OR YACHT BREAKER.
FAILURE TO DO SO MAY RESULT IN DAMAGE TO THE DBT12/15/24 AND
PEDESTAL.
 OBSERVE THE FOLLOWING WHEN SERVICE AND MAINTENANCE ARE
REQUIRED:
 REMOVE ALL JEWELRY FROM ARMS AND NECK WHEN SERVICING
THIS EQUIPMENT. THIS PREVENTS THE POSSIBILITY OF SHORTING
THROUGH THE JEWELRY TO OR ELECTROCUTION OF THE
OPERATOR.
 WEAR SAFETY GLASSES WHEN SERVICING THIS EQUIPMENT TO
PREVENT EYE INJURY DUE TO FLYING PARTICLES CAUSED BY
ACCIDENTAL SHORT CIRCUIT CONDITIONS.
 DO NOT REMOVE ANY PANELS OR COVERS WITHOUT FIRST OPENING
ALL CIRCUIT BREAKERS AND THEN REMOVING THE INPUT SERVICE.
 SERVICE OTHER THAN CLEANING AIR FILTER ELEMENTS SHOULD
BE REFERRED TO PERSONNEL AUTHORIZED BY THE FACTORY TO
SERVICE THIS EQUIPMENT.

DBT12/15/24 Operations Manual....8
3. INTRODUCTION TO THE DBT12/15/24
The DBT12/15/24 is a high performance Isolation Transformer designed to isolate and normalize
the shore power for reliable shipboard use.
Isolation is obtained through the use of a conservatively rated transformer compliant to the
requirements of ABYC E-11, and as such includes a full fault current shield. The transformer
also provides basic range normalization and a first level of electrical noise filtering as shown
below.
Figure 1: DBT12/15/24 Block Diagram
Being a unit designed from the ground up specifically for the yachting industry, all efforts have
been made to produce a product capable of sustaining the marine environment. All unit
components are packaged in a single drip-proof, dust-resistant aluminum enclosure. Complete
maintenance and service can be provided with front, top and side access to the unit. Unit
operation is managed through one circuit breaker and the LCD display.
LCD DISPLAY
METERING
AND
CONTROL
POWER
SUPPLY
SHORE
POWER
SHIP
POWER
RS-485 INTERFACE
VOLTAGE
COMPENSATION
USB INTERFACE

DBT12/15/24 Operations Manual....9
4. SPECIFICATIONS
4.1. ELECTRICAL SPECIFICATIONS
Parameter DBT12 DBT15 DBT24 DBT24-60Hz
4.1.1. Input Service
50 Hz
60 Hz
Input Power Form
Single Phase
Input Voltage Range
(
V
RMS
)
167
–
270
167
–
270,
285
–
530
167
–
270,
325
–
530
Input Frequency Range
(Hz)
57
–
70
47
–
70
57
–
70
Input Current,
Continuous
(
A
RMS
)
50
63
50
100
Input Current, Overload (
A
RMS
)
1
25
1
56
1
25
2
5
0
4.1.2. Output Service
Output Power Rating
(kVA)
*Note 1
12
15
24
Output Power Form
&
Nominal
Voltage
(
V
RMS
)
*Note 1
Split Phase 120 / 240 Split Phase 115 / 230 Split Phase 120 / 240
Output Frequency
Same as Input
Frequency
Output Voltage Adjust Response
Time
15
minutes
Output Current, Continuous
(
A
RMS
)
50
63
50
100
Output Current, Overload
(
A
RMS
)
1
25
1
56
1
25
2
5
0
Efficiency
at
R
ated
L
oad
97
%
Note 1 - Power ratings are based on the nominal output voltage. As the DBT12/15/24 is current limited, the input voltage will affect
the available output power.

DBT12/15/24 Operations Manual....10
4.1.3. Control and Status
On/Off Circuit Breaker, input power and output power contactors.
4.2. PHYSICAL SPECIFICATIONS
Parameter DBT12 DBT15 DBT24 DBT24-60Hz
4.2.1. Mechanical
Height
12.06"
(
30.6
cm
)
1
3
.06"
(
3
3
.
1
cm
)
16.
50
"
(41
.9
cm)
Width, Enclosure
13.16"
(
33.4 cm
)
13.16"
(
33.4 cm
)
19.56
"
(49.7 cm)
Depth
18.66"
(
47.4 cm
)
18.66"
(
47.4 cm
)
24.67
"
(62.7cm)
Weight
12
8
lbs.
(
5
8
.
2
kg
)
164 lbs. (74.5 kg)
427 lbs. (194 kg)
TBD
4.2.2. Environmental
Ambient Temperature Range
0
-
45

C non
-
condensing
Air Exchange Rate
171 CFM
(
4.83 m
3
/min
)
342
CFM
(
9.66 m
3
/min
)

DBT12/15/24 Operations Manual....11
5. INSTALLATION
Read this manual thoroughly prior to attempting the installation. Improper installation is the most
significant cause of system start-up problems and service issues over the products life. Upon
receipt of the equipment, perform an external visual inspection. Verify that nameplate
information is consistent with the ship’s power requirements (required form, voltage, and
frequency).
Proper planning will speed up installation, location, and connection of the equipment. Follow
the suggested minimum clearances provided in Table 1.
Ensure the room / compartment has adequate ventilation and cooling. The thermal load
presented is approximately 1,400 BTU/Hr. for the DBT12, 1,750 BTU/Hr. for the DBT15,
and 2,800 BTU/Hr. for the DBT24 at rated load.
THE DBT12/15/24 UNITS ARE HEAVY. EXTREME CAUTION MUST
BE EXERCISED IN HANDLING AND INSTALLATION TO AVOID
EQUIPMENT DAMAGE OR INJURY TO PERSONNEL. AN
ADEQUATE MATERIAL HANDLING DEVICE SHOULD BE USED FOR
UNLOADING, MOVING, AND POSITIONING THE UNIT.

DBT12/15/24 Operations Manual....12
5.1. MECHANICAL INSTALLATION
The DBT12/15/24 is designed for horizontal, deck-mount installation. The mounting feet on
each side of the unit contain a number of slots, as shown in Figure 3 and Figure 6. The use of
stainless steel hardware 3/8" (9 to 10 mm) or equivalent is required for mounting.
The mounting surface should be flat and dimensionally stable to within 1/16" (1.6 mm) to prevent
torsional stresses being applied to the structure of the unit. Spacers (shim stock) may be added
between the mounting surface and the mounting feet to adjust the mounting plane. Resilient
mounts must not be used directly between the unit and the mounting surface. If the unit is to be
mounted in a high vibration / shock environment, then the factory must be consulted concerning
the application. Drawings for approved shock mounting panels will be supplied.
The following recommended clearances must be considered during installation:
Table 1: Recommended Installation Clearances
Parameters Proper Operation Proper Service
Front 12" (30 cm)
(User
A
ccess)
12" (30 cm)
Left Side 6" (15 cm)
(
Air
Intake)
12" (30 cm)
Right Side 6" (15 cm)
(
Air
Outlet
)
12" (30 cm)
(Side Cable Entry
Installation
)
Top
None
14
"
(35 cm)
Rear
None
2
"
(5 cm)
The installation should prevent air circulation from the air outlet to the air intake.
The outline and mounting details are shown in Figure 2 – Figure 6.

DBT12/15/24 Operations Manual....13
Front View
Figure 2: DBT12 Mechanical Outline

DBT12/15/24 Operations Manual....14
Left View
Right View
Figure 2: DBT12 Mechanical Outline (continued)

DBT12/15/24 Operations Manual....15
Bottom View
Figure 3: DBT12/15 Deck-Mounting Pattern

DBT12/15/24 Operations Manual....16
Front View
Figure 4: DBT15 Mechanical Outline

DBT12/15/24 Operations Manual....17
Left View
Right View
Figure 4: DBT15 Mechanical Outline (continued)

DBT12/15/24 Operations Manual....18
Front View
Figure 5: DBT24 Mechanical Outline

DBT12/15/24 Operations Manual....19
Left View
Right View
Figure 5: DBT24 Mechanical Outline (continued)

DBT12/15/24 Operations Manual....20
Bottom View
Figure 6: DBT24 Deck-Mounting Pattern