43
Systems
ELCI SYSTEM
TYPICAL ELCI SYSTEM OVERVIEW
Normally shore power travels from the marina dock-
side plug through the cord reel to a main ELCI breaker
with leakage fault technology. Power continues to the
ship’s main AC control panel caulminating at the shore
power main and auxiliary equipment breakers.
Th
e ELCI single pole beraker is set up to trip should an
overload or fault occur between the breaker itself and
the main AC control panel. If the 50 amp ELCI breaker
trips fi nd the cause of the problem before resetting the
breaker.
Th
e ELCI stands for “Equipment Leakage Circuit Inter-
rupter”. Th
ere are two potential failures in a boat’s elec-
trical system that can put people on or around a vessel at
risk of lethal electrical shock. In a properly functioning
marine electrical system, the same amount of AC cur-
rent fl ows in the hot and neutral wires.
However, should electricity “leak” from this intended
path in these two wires to ground, this condition is re-
ferred to as a “ground fault”. An example of this is an
insulation failure in the wiring of an appliance.
Furthermore, a ground fault can occur when the
grounding path is broke through a loose connection or
broken wire. As an example a shore power ground wire
may fail due to fatigue caused by constant motion and
stress. Faulty grounds can go undetected; a simple con-
tinuity test may not reveal problems.
When these 2 conditions occur at the same time, it may
produce tragic results. Th
e combination of a “ground
fault” and a faulty ground could result in the metal parts
of the vessel and underwater gear to become energized.
If this condition exists, besides being a hazard to per-
sonnel on board there is increased danger to swimmers
near the boat. Th
e result could be shocking people on
board and swimmers could reveive a paralyzing dose of
electricity and drown due to loss of muscle control.
An ELCI provides protection for the entire boat and fea-
tures a trip threshold which provides ground fault pro-
tection for the entire shore power system beyond the
ELCI.
Th
e ELCI protection on individual shore power lines
combined with GFCI’S will reduce the risk to those on
the boat, dock, and in the water surrounding the vessel.
Notice that one ELCI breaker is marked shore power 1
and the other ELCI breaker shore power 2.
Another feature of the ELCI is a “leakage fault” detec-
tor located on the side of the ELCI breaker itself. Th
e
leakage fault feature detects a change in the neutral wire
current. Should the current change more than 30 milla-
amps or about 1/3 of an amp the unit senses the diff er-
ence and will “trip” the breaker causing the leakage fault
LED to illuminate red. Th
is clearly indicates that the
trip occurred as a result of leakage. Before resetting the
ELCI breaker determine the cause of the leakage fault.
A proper operating alternating current system will dis-
play a green illuminated LED at the “power” marked
area of the ELCI.
Periodically test the ELCI by depressing the “test” but-
ton. Th
e breaker should “trip” indicating the system
is functioning properly. Simply reset the breaker. Th
e
leakage hazard helps prevent serious equipment dam-
age and possible fi re.
Aft er the neutral and the 2-120 volt conductors exit the
ELCI they run directly to the ship’s main AC control
panel.
Th
e ELCI can at times undergo a process called “nui-
sance tripping” which can cause a “tripped” breaker.
Th
is can be caused by overloads in the electrical draw
or sometimes caused from unbalanced loads. One way
to minimize the situation should it occur is to monitor
closer the energized devices on the vessel which will as-
sist in keeping the total amperage used to a minimum
and the loads between panel legs more balanced.
Note: It is always a good practice to keep the AC panel
legs
as balanced and always turn off breakers not in use.
Your vessel is not like a home with unlimited energy re-
sources.
Remember to balance panel loads!
Summary of Contents for 42 Fly-Grande Coupe
Page 1: ......
Page 6: ...Table Of Contents...
Page 20: ...14 Chapter 1 Note...
Page 31: ...11 Safety On Board NAVIGATION LIGHT RULES...
Page 52: ...9 Rules Of The Road...
Page 53: ...10 Chapter 3...
Page 78: ...25 Systems TYPICAL BATTERY MANAGEMENT SYSTEM VSR...
Page 99: ...46 Chapter 4 TYPICAL AC ELCI CIRCUITRY FLOW CHART...
Page 174: ...15 Engine Controls AFT FORWARD SIDEWAYS DIAGONALLY ROTATE JOYSTICK FUNCTIONS...
Page 240: ...48 Chapter 7...
Page 241: ...49 Auxiliary Equipment Operation...
Page 242: ...50 Chapter 7 SEAKEEPER SPECIFICATIONS...
Page 281: ...35 Cosmetic Care Maintenance TYPICAL DIESEL GENERATOR PARTS DESCRIPTION...
Page 282: ...36 Chapter 8...
Page 300: ...54 Chapter 8 VOLVO IPS ENGINE DRIVE COMMON PARTS IDENTIFICATION...
Page 323: ...10 Chapter 10 SHORE CABLE SYSTEM...
Page 328: ...15 Troubleshooting TYPICAL WINDLASS...
Page 347: ...6 Chapter 13 TECHNICAL DRAWINGS...
Page 349: ...Technical Information 12 8 42 GRANDE COUPE FLY ELECTRICAL OULLETS...
Page 350: ...Technical Information 12 9 TYPICAL DC GROUND CIRCUITRY...
Page 351: ...Technical Information 12 10 TYPICAL BATTERY MANAGEMENT PANEL CIRCUITRY...
Page 352: ...Technical Information 12 11 TYPICAL GFCI CIRCUITRY...
Page 353: ...Technical Information 12 12 TYPICAL FIRE EXTINGUISHER GROUND CIRCUITRY...
Page 354: ...Technical Information 12 13 TYPICAL TWIN VOLVO DIESEL ENGINE FIRE EXT SHUTDOWN...
Page 355: ...Technical Information 12 14 TYPICAL BATTERY SWITCH CIRCUITRY...
Page 356: ...Technical Information 12 15 TYPICAL WIPER CIRCUITRY OVERVIEW...
Page 358: ...Technical Information 12 17 42 FLY UPPER HELM SWITCH PANEL...
Page 359: ...Technical Information 12 18 42 FLY UPPER HELM SWITCH PANEL...
Page 360: ...Technical Information 12 19 42 FLY UPPER HELM BREAKER PANEL...
Page 361: ...Technical Information 12 20 42 GRANDE COUPE FLY LOWER HELM SWITCH PANEL...
Page 362: ...Technical Information 12 21 42 GRANDE COUPE FLY LOWER HELM SWITCH PANEL...
Page 363: ...Technical Information 12 22 42 GRANDE COUPE FLY EUROPEAN 230 VOLT AC PANEL...
Page 364: ...Technical Information 12 23 42 GRANDE COUPE FLY EUROPEAN 230 VOLT AC PANEL AFT VIEW...
Page 365: ...Technical Information 12 24 42 GRANDE COUPE FLY 120 240 VOLT AC PANEL...
Page 366: ...Technical Information 12 25 42 GRANDE COUPE FLY 120 240 VOLT AC PANEL...
Page 367: ...Technical Information 12 26 42 GRANDE COUPE FLY 12 VOLT DC PANEL...
Page 368: ...Technical Information 12 27 42 GRANDE COUPE FLY 12 VOLT DC PANEL AFT VIEW...
Page 370: ...Technical Information 12 29 42 GRANDE COUPE FLY AIR CONDITIONING SYSTEM OVERVIEW...