ArcGen Hilta PowerMaker 15MVK User manual

ISSUE DATE: FEBRUARY 2006
Caution: Do not attempt to operate this machine until
you have read and understood completely
ALL instructions and guidelines contained.
Keep this manual available at all times for
operators and service engineers.
Instruction Manual
& Parts List
Multi-Voltage Generator
Model: PowerMaker
15MVK
1

Contents Page
Page Numbers
1. Preparations 7-8
2. Instrument Names 9-10
3. Operating Procedures 10-22
3.1 Starting and Operations 13-14
3.2 Stopping the engine 14-15
3.3 Operating Precautions 15-16
3.4 Emergency Stop Devices 16
3.5 Engine Stop Switch 16
4. Operating the Generator 17-22
4.1 AC Power 17-19
4.2 Earth Leakage Relay 18-22
5. Lubricating Oil, Coolant and Fuel 23-24
5.1 Engine Oil 23
5.2 Engine Coolant 23-24
5.3 Fuel 24
6. Maintenance 25-27
6.1 Required Maintenance for the Initial 50 Hours 25
6.2 Maintenance Check Every 100 Hours of Operation 25
6.3 Maintenance Check Every 200 Hours of Operation 26
6.4 Maintenance Check Every 300 Hours of Operation 26
6.5 Maintenance Check Every 400 Hours of Operation 26
6.6 Maintenance Check Every 500 Hours of Operation 26
6.7 Maintenance check Every 1000 Hours of Operation 27
6.8 Other Checks and Maintenance 27
6.9 Maintenance Check List 27
7. Troubleshooting 28
8. Storage of Machines 29
2

Contents Page Continued
Page Numbers
9. Major Specifications 30
10. Generator Wiring Diagram 15MVK 31
11. Engine Wiring Diagrams 32
12. Outline Drawings 15MVK 33
Parts List and Diagrams 36-71
3

Please use the machine with the following instructions
• This “INSTRUCTION MANUAL” gives a detailed description of operation, routine,
inspection, maintenance and troubleshooting of the generator, and other items
required for correct operation.
• Please read this manual carefully, especially the contents and caution symbols.
• While the generator is in its required place of operation, please keep the instruction
manual in a place readily available to operators and service engineers
• For detailed operation and maintenance of the ENGINE, please refer to the “Engine
Operation Manual”, supplied by the engine manufacturer.
Your machine: Model No: Powermaker 15MVK
There may be a difference between the
specification detailed in this manual
and the actual performance of the machine
due to modifications to the machine.
Symbol Mark in this Manual
DANGER: Indicates an imminently hazardous situation
which, if not avoided could result in death or
serious injury
CAUTION: Indicates a potentially hazardous situation which,
if not avoided may result in minor or moderate injury
or property-damage.
(Notice): Notice is used to notify people of installation operation,
maintenance information which is important but not
hazard-related.
4

Safety Precautions
DANGER:
ENSURE GOOD VENTILATION
Exhaust from the engine contains substances harmful
to the human body. Sufficient change of air is necessary
when the machine is used in places with poor ventilation,
such as in a tunnel or indoors. Do not direct exhaust to
passers by or houses.
DANGER:
FIRE PREVENTION
Fuel and oil are inflammable. Keep inflammable material
away from the machine, never smoke while refuelling and
never refuel during its operation.
DANGER:
AVOID ELECTRIC SHOCKS
Do not touch the output terminals during operation. This is
extremely dangerous when your hands are wet. Stop the
machine when you touch the terminals for connection and
other purposes.
DANGER:
NO CONNECTION TO DOMESTIC WIRING
Connecting to domestic wiring is illegal and very dangerous
because it may cause electric shocks and damage to the
generator.
DANGER:
CONFIRM CONNECTION
Damaged cables and insufficient tightening of connections
may cause damage to the machines and electric shocks.
Repair damaged cables and ensure connections are tight.
5

Safety Precautions - Continued
CAUTION:
DURING OPERATION
Do not open any of the following items while the generator
is running and immediately after the generator has stopped.
1. Radiator Cap
Only perform these checks when the engine is cold to
avoid injury. Do not at anytime, when the engine is still
hot, remove the radiator cap. Opening the radiator cap
when the engine is hot will result in boiling water gushing
out of the radiator which will scald people nearby.
2. Cooling Water Drain Plug
Opening the cooling water drain plug when the engine is hot will result in boiling water
gushing out of the engine which will scald nearby people.
3. Engine Oil Drain Plug
Opening the engine oil drain plug when the engine is still hot will result in burning oil
gushing out of the engine which will scald nearby people.
4. Do not touch while operating the generating set, the engine cooling fan or any other
places of high temperatures like, the exhaust pipe, engine and radiator. Even when
the machine is stopped, take care that the machine has cooled down enough before
touching the engine and other components.
CAUTION:
Battery
As the battery contains combustible gas, take extreme care in handling the battery. If
you are careless, like dropping the battery, there is a risk that the battery might explode.
In carrying out maintenance or inspection check, recharging and using booster cables,
extreme care should be taken to ensure safety.
CAUTION:
Strictly prohibited
Do not expose the battery to naked flames, sparks, cigarettes, and anything else
flammable, as the battery contains flammable liquid and gas.
CAUTION:
There is a risk of explosion if you do not charge the battery as there will be a build up
of combustible gas. The recharging process and handling of the battery should be done
in an area that is exposed to an air current, to avoid the risk of a dangerous concentration
combustible gas.
CAUTION:
In case the battery liquid is (dilute sulphuric acid) happens to come into contact with clothing
or skin, you must immediately rinse it out by using a lot of water. If the battery liquid comes
into contact with your eyes, wash it out with lots of water and seek medical attention
immediately.
6

1. Preparations
This machine has undergone stringent factory tests and inspections to ensure the machine
performs in accordance with its specifications, before being shipped to the end user.
As with any piece of motorised machinery, excessive use of brand new machinery may
shorten the life of the machine. Therefore, it is recommended for the initial 50 hours of
machine usage, special care is required for this running in period.
Upon receipt of this machine, please perform a maintenance check of the machine BEFORE
USE, so as to further insure there are no major malfunctions or damage to the machine that
occurred during transit.
We recommend that the machine be placed upon a level surface,
where there is not excessive dust or moisture.
1.1 When using the machine where there is inadequate
ventilation, make sure the following care is taken:
DANGER:
Ensure good ventilation, exhaust from the engine contains
substances harmful to the human body. Sufficient changes of air is necessary when
the machine is used in places with poor ventilation, such as in a tunnel or indoors. Do
not direct exhaust onto passers by or houses.
1.2 Caution in machine transporting.
CAUTION:
In cases where wheels are fixed to the generator, for better mobility, make sure
blocks are used to stop the generator from moving when in operation and
transporting the generator.
CAUTION:
When transporting, loading or unloading the machine you must
use the balanced centre point lifting hook which is situated on
the top panel of the machine.
CAUTION:
Caution should be taken in transporting the machine to and from sites. It is advisable
when using the machine to use the balance centre point lifting hook. Trucks and the
like should be used as a means of transportation. When loaded on a truck be sure to
use the bar on the front and back of the machine, as means to affix the machine
during transportation.
7

1. Preparations - Continued
1.3 Notice for Installation
(Notice)
Make sure the generator is placed on a secure and level
surface. When using the generator on an inclined surface,
the allowable inclination angle is up to 20 degrees.
(Notice)
Avoid using the generator in places of high humidity.
(Notice)
Avoid using the generator in places where surrounding
temperature is likely to rise over 40 degrees Celsius.
(Notice)
Avoid using the generator in places where there is excessive dust, noxious gases and
explosive gases.
(Notice)
Provide adequate space for machine inspection and maintenance.
(Notice)
Do not have obstacles within 1 metre from the machine otherwise the
machine could overheat.
1.4 Caution During Operation
While operating the generator set, you should check the instruments on the control panel
(e.g. frequency meter, voltmeter, ammeter, etc, to make sure the machine is working
correctly), on a regular basis.
1.5 Battery
Correct maintenance of the battery is important to ensure smooth starting and long service
life. Check the specific gravity, level of electrolyte and output voltage every 50 hours or
once every month.
(Notice)
If the specific gravity is 1.28 (at 20°C) the battery
is adequately charged. If the specific gravity is 1.245
or less, recharging is necessary.
(Notice)
The electrolyte must always cover the plates. If the plates are exposed to air for a long
time, damage will result. Apply a thin coat of grease on the terminals, to ensure a good
connection.
8

2. Instrument Names
Reference
Powermaker
15MVK
2.2 Name of Components
01. Alternator
02. Diesel Engine
03. Air Cleaner
04. Fuel Tank
05. Fuel Filter
06. Oil filler
07. Oil Filter
08. Oil dipstick
09. Radiator
10. Radiator Reserve Tank
11. Battery
12. Junction Terminal
13. Fuse
Reference Powermaker 15MVK
01. Control Panel. 06. Bar 11 AC Power output
02. Fuel level gauge. 07. Air intake (415/240V)
03. Fuel tank inlet. 08. Exhaust 13. Radiator inlet.
04. Lifting hook / lug 09. Ventilation 14. Water Drain.
05. Door latch 10. Fuel drain 15. Oil drain.
11. AC Power output
Terminal (110V single
phase)
2.1 Outline Drawing and name of instruments.
9

10
2. Instrument Names - Continued
2.3 Control panel and name of instrument
3. Operating Procedures
The following checks before start up must be undertaken.
1. Oil Check
Be sure to check the oil before start up everyday. The oil level must be maintained
between the two notches on the dipstick. Of the oil level is lower than the lower notch,
immediately replenish the oil, so that the oil level lies between
the two notches on the dipstick. Do not overfill so that the oil
level is greater than the upper notch as this may cause the oil
seals to fail, causing an oil leak. When checking the oil level,
be sure to check if the oil is clean and viscous. If the oil is not
clean, drain the oil by removing the oil drain plug and then re-fit
the oil plug and replenish the oil.
After a specified amount of the engine oil is supplied, run the
engine for several minutes and then stop it to re-check the oil
level again.
(Notice): Use only high quality lubricating oil with classification CC and DC.
1. Circuit breaker (for 415V) 13. AC Power output receptacle
2. Circuit breaker (for 110V) (1-phase 240V 16A )
3. Frequency meter 14. AC Power output receptacle
4. A.C Ammeter (1-phase 110V 16A)
5. A.C Voltmeter 15. AC Power output receptacle
6. Indicator lamp unit (oil pressure 16. Circuit breaker (Miniature
water,battery charging and 240V) circuit 110V or breakers
7. Starter switch
8. Hour meter
9. Earth terminal for earth leakage relay.
10. AC Power output receptacle
(3-phase 415V 16A)
11. AC Power output receptacle
(1-phase 110V 32A )
12. AC Power output receptacle
(1-phase 240V 16A)
15MVK
Engine oil Capacity 5.1L

3. Operating Procedures - Continued
(Notice): Grades of lubricating oil (service classification)
CA, CB, CC, CD - Diesel Engine classification.
(Notice): Selection of engine oil viscosity. Use oil viscosity
most suitable to the temperature under which the
machine is used. For example, SAE30 (oil for
summertime use). SAE20 (oil for wintertime use)
and SAE10W-30 (oil for all season use).
2. Check the cooling water
In the checking and replenishing of the cooling water, make sure that the engine is cold.
Check that the reserve water tank (sub tank), water level is between the high (H) and
low (L) lines of the level gauge. When the cooling water in the reserve tank is at a low
level, immediately refill it. If the radiator level is low, it will automatically draw on the water
from the reserve tank.
(Notice): When refilling the engines cooling water, be sure to use tap water. Do not use
river or rain water as it may cause trouble for the engine cooling system.
3. Check the fan belt
Check the belt for tension, and elongation and adjust them
as required. Concurrently, check that the belt has not been
damaged and immediately replace it if any abnormality is
noted on the belt. Perform the adjustment and replace as
directed in the “Instruction Manual” provided by the engine
manufacturer.
4. Check the fuel
Check the fuel level by looking at the fuel gauge. If the level is low, refill the fuel tank.
(Notice): Only use ASTM No 2 diesel fuel or heavy oil,
which the engine manufacturer recommends. Do not use
substitute oils and kerosene as the quality is unknown and
the octane (cetane), number is low. Use JIS special No 3
diesel fuel for temperatures below -15ºC.
From time to time, it is important to drain the fuel tank, as
contaminants will build up at the bottom of the fuel tank. Unplug
the fuel tank drain plug at the side of the generator base and
re-plug the drain to refill with a fresh supply of diesel fuel.
(Notice): The fuel inlet area has a drain hole for overflow of
fuel and rain. When refuelling, be sure to remove dust, mud,
etc. that will build up around the fuel inlet. If it is not done, the
fuel will choke up and there is a greater chance of contaminants
entering the fuel tank.
Fan belt Part No. 15MVK 06020 11479
11

3. Operating Procedures - Continued
DANGER: FIRE PREVENTION
Fuel and oil are inflammable. Keep inflammable material away from the machine, never
smoke while refuelling and never refuel during operation.
5. Battery Check
Always ensure the level of battery fluid is maintained above the low level mark. If the
battery fluid is low, distilled water should be immediately supplied to the battery.
(Notice): Do not refill the battery over the upper level mark. Always remember to tighten
the battery cap correctly after refilling the battery.
6. Battery Cable Connection
Make sure the battery cables are properly connected to battery
terminal (+) and (-).
(Notice): If the cable is connected incorrectly, damage to the
electrical parts will result in a short period.
• Always check or connect the battery cable connection
when the starter key switch is in the off position.
(Notice): Do not connect the cables to the battery when the starter switch is “ON”,
because, electric sparks will be produced. They may injure the operator and cause
damage to the machines electrical components.
(Notice) It is recommended that a thin film of grease be applied to the battery terminals to
ensure a good connection and the prevention of corrosion of the battery terminals. An
insufficient or poor connection may cause poor starting of the machine and other
malfunctions to occur.
7. Fuel Filter Cock
Turn the fuel filter cock lever from the close position to the open
position.
8. Check the Wiring
Inspect the wiring to ensure that all wire connections are not
loose and that no wires are worn out. If any worn out or damaged
wires or connections are noticed, either repair it or replace it
immediately.
9. Check the Piping and Hose Connections
Check that all piping and hose connections are not loose. If these
connections are loose and not rectified, oil leakages and cooling
water leakages may occur during operation. Make sure all
connections are rectified.
Check that all hoses are not worn out. If a hose is found to be worn out or damaged,
repair or replace it immediately.
12

3. Operating Procedures - Continued
3.1 Starting and Operating
Before starting the machine, the pre-starting safety checks must be completed. In
addition, do a general survey of the area surrounding the machine making sure the
area is safe, air vents of the machine are not blocked and the exhaust can be freely
discharged.
The machine can be started, once the people around the machine have been notified
that it is going to be used.
(Notice): In cold operating conditions, use suitable cooling water and lubricating oil for
improved starting conditions and prevention of any troubles. The battery must always
be maintained at full charging level.
1) Insert the key into the “starter switch” and turn it to the “Run” position. When the key
is on the “Run” position, the indicator lamp will come on.
2) Once the indicator lamp goes off, turn the key to the “Start” position to start the
engine. As soon as the engine starts, release the key whereby the key will
automatically return to the “Run” position.
3) After the engine starts, let the machine idle for 5~10 minutes to warm-up
(Notice): After the engine started check to see if the oil
pressure lamp and battery charging lamp are off. If one
of these lamps are on, check the machine after the engine
is turned off. (Refer to the Operation Manual for details.)
(Notice): While the engine is operating, do not switch the
starter switch on. Note, if the engine does not start within
10 seconds after the key is turned to the “Start” position
wait for at least 30 seconds and repeat the starting
procedure again.
4) When the idling period has finished, make sure the
engine speed is under NO LOAD OPERATION
mentioned below.
During the winter or when the surrounding air temperature is cold, in situations where a
load start is required, turn the key to the “Run-pre-heat position”, you must wait until the
engine indicator lamp goes off.
(Notice): After the engine has started, if you continue to hold the key in the start position
damage will be caused to the starter. The key switch must be turned to the “Run”
position within 10 seconds of starting the engine. In situations where the sound of the
engine turning over cannot be heard to start the machine, repeat the starting
procedure from the beginning in accordance with the Operational Manual, after about
30 seconds.
If the machine fails to start despite repeating the starting procedure, there is
obviously a problem with the machine. Therefore a thorough check is required
(e.g. fuel has run out, forgetting to turn the fuel cock to the open position, excessive air
in the fuel system and battery leakage.)
FREQUENCY NO-LOAD OPERATION
50 Hz approx. 52.0 ( 3120 rpm )
13

3. Operating Procedures - Continued
5) Carefully check the engine for abnormal vibration (noise), oil leakage, fuel leakage,
cooling water leakage and air leakage. If the machine is operating normally, set the
“circuit breaker” to the ON position in order to supply electricity to the load.
(Notice): While the machine is operating do not have any
obstacles within one meter radius from the machine.
Obstacles within this area, may cause the machine
to overheat.
(Notice): Do not have any of the doors of the machine open while
operating. The main problem with leaving the doors of the machine open during
operating, are the effect on the internal air flow of the machine and alien sub
stances (e.g. dust and dirt ) will be drawn into the machine.
(Note): How to use the automatic air vent device.
When the engine stops due to running out of fuel, changing the fuel filter or fuel
piping and restart the machine in accordance with the following instructions.
(A) Refuel the fuel tank and open the fuel filter cock.
(B) Turn the starter switch to the start position whereby when the engine starter
turns over, the automatic air vent device will expel the air inside the fuel system.
(C) After 10 to 20 seconds of turning the engine over, the automatic air vent devices
would have expelled all the air out of the fuel system. At this point, the engine will
be able to start.
3.2 Stopping the engine
(1) Ensure Circuit breaker are in the OFF position.
(2) Turn the key to the “Off” position.
(3) Remove the key out of the starter switch. Make
sure when the machine is not being used, that the
key is kept safe.
(4) Turn the fuel filter cock to the “Close” position.
(5) Disconnect the wiring and plug(s) from the AC power connections.
(6) Make sure the generator is not exposed to moisture.
It is important the generator is kept dry when not in use.
(7) To keep the generator in good working order, do not leave the generator exposed
to the elements. When the generator is not being used, cover it using a sheet .
14

3. Operating Procedures - Continued
(Notice): In the unlikely occurrence of the engine not stopping when the key is turned to the
“Off” position, there is a way of stopping the generator. Please refer to the
following diagram and explanation.
In order to stop the machine in this situation, you must turn the fuel filter cock to
the “closed” position. Closing the fuel filter cock cuts the supply of
fuel to the engine and the engine will take a few minutes to stop. This should only
be done in case of an emergency.
3.3 Operating Precautions
(1) Always read the meters and lamps on the control panel
•While the generating set is still running, periodically
check the readings of the meters on the control
panel. Specifically, check that these meters show
the machine is running correctly or not and the
alarm lamps are on or not.
•When the machine is running correctly the alarm
lamps will show the following.
(Notice): If any of the alarm lamps are illuminated or the meters show abnormal readings
while operating the machine, immediately stop the engine. Proceed to check and
inspect the source of the problem.
(2) Hour meter
• Hour meter will always be working as soon as the engine is turned on.
• Use the “Hour Meter” to plan maintenance for the generator.
(3) Others
• While the generator is running check the following:
(Notice): Make a periodic check of the exhaust discharge, which will make the operator
aware of any abnormalities in the exhaust discharge.
(Notice): Check for leakage’s of lubricant oil, fuel, cooling water and exhaust gases.
(Notice): Be aware of the noise produced by the machine. If any strange noises/sounds
are noticed there may be a problem.
(Notice): If any abnormalities are noted, immediately stop the machine and investigate
the cause of the abnormality.
Generator load Rated load No load
Alarm lamp Reading All Off All Off
15

3. Operating Procedures - Continued
3.4 Emergency stop devices.
The generating set is equipped with the following “Emergency Stop” devices.
• When one of the emergency stop devices is activated, the engine will stop
automatically and the control panel will indicate where the problem is. The
operator must turn the starter switch to “stop" position and then proceed to
check and repair the problem area of the machine.
FUSE
The engine wiring system has its own fuse. If this fuse has blown, check the wiring to
determine if there are any problems.
If there are no apparent problems with the wiring, check to see if there are any alien
substances in the wiring system.
Repair any problems found in accordance with the engine Manufacturer’s Operation
Manual. After the problem is fixed, replace the blown fuse.
(Notice): If the engine does not stop despite a blown fuse or another malfunction (with the
starter switch in the “OFF” position), turn the fuel filter cock to the close position and the
engine will stop.
3.5 Engine stop switch
1. The engine will not start when the side door is
open or the front bottom cover has been removed.
2. The engine will stop if the side door is opened
during operation or the front bottom end cover
is removed.
(Notice): The above actuation is cancelled if the connector (4P) of accessories is inserted
in to the connector located above the battery and beside the centre frame inside the side
door.
If the side door is opened and the engine has stopped, close the door.
Then re-start the engine after returning the starter key to the “stop” position.
ACTIVATED DEVICE REASONS FOR ENGINE STOPPING
Charging Alarm Lamp
Battery uncharged, loose battery connections, fan
belt loose or broken.
EMERGENCY
STOP
DEVICE
Engine oil pressure
switch. If the engine oil pressure is abnormally low, engine is stopped (below 0.5kg/cm2) This indicates there is a
shortage of oil.
Engine water
temperature switch Engine is stopped, when the cooling water
temperature is abnormally high over (110 °C). This
indicates the radiator is overheating or there is a
blockage.
Door Switches Side door open or front bottom end panel removed or
badly fitted .
16

17
4. Operation of the Generator
4.1 AC Power
This machine is equipped with single phase and three
phases output generating capabilities.
(Notice): In connecting a load, make sure the correct size of
cable and plugs are used on the appropriate
output terminal. When connecting cables direct to
the terminal board you must tighten the terminal
bolts correctly.
DANGER: Confirm connection
Damaged cables and insufficient tightening of connection screws may
cause damage to the machine and electric shocks. Repair damaged cables
and ensure connections are tight.
1. Take extreme care when connecting induction motor powered machines that are
susceptible to frequency.
2. Do not connect and disconnect the terminal connections of a load as a means
of turning the supplied AC power on and off for a particular load.
3. When connecting a load to the generator, the circuit breaker must be turned
“OFF”. Never connect a load with the circuit breaker ON, as it will cause the
operator a serious electric shock and also cause possible damage to the
generator set.
DANGER: AVOID ELECTRIC SHOCKS
Do not touch output terminals during operation. This is
extremely dangerous when your hands are wet. Stop the
machine before you touch the terminals for connection
and other purposes.
(Notice): Be careful not to overload the generator. As soon as the machine is
overloaded the circuit breaker will trip and the
machines output will be immediately cut off.
If you want to use the machine for simultaneous
3-phase and single phase output, make sure
that the sum total of the load does not exceed
the rated load.
4. Do not connect the AC Power output of the generator
with commercially available power supplies. Therefore,
you must ensure that the generator’s output will not come into contact with
commercially available power supplies.

4. Operation of the Generator - Continued
DANGER: NO CONNECTION TO DOMESTIC WIRING
Connection to domestic wiring is illegal and very dangerous because it may cause
electric shocks and damage to the generator.
5. The following diagrams illustrate how to connect 1-phase
and Single-phase loads to the generators output terminal.
6. The following diagrams illustrate how to connect 3-phase and single-phase loads
to the generators output terminal.
4.2 Earth Leakage Relay
(1) General Description
• The machine is equipped with an earth leakage relay which has a current
adjustable sensitivity from 30mA to 1000mA and adjustable time setting from
00.04 sec to 2 sec. The purpose of the relay is to detect any current leakage
due to insulation failure. When the earth leakage relay detects a current leakage,
it will automatically trip the circuit breaker, thereby shutting down the output to
the terminal, in order to guard against the possibility of electric shock.
• It is more important to ensure that the load is properly connected to the
generator rather than being careless and risk the possibility of current leakage
and other problems. We urge the users of this generator to read this Operation
Manual thoroughly.
U N V 1-Phase 3-Wire Output Terminal 50Hz
O O O
U N V 1- Phase Load Use U-V for 110V
O O O
U V W O 3-Phase 4-Wire Output Terminal 50Hz
O O O O
U V W O 3- Phase Load Use U-V-W for 415V
O O O O
U V W O Single Phase Load Use O-U, O-V, O-W for 240V
O O O O
U V W O Single Phase Load U-V, V-W, W-U for 415V
O O O O
18

4. Operation of the Generator - Continued
• When the earth leakage relay is activated, the operator should immediately
locate the leakage and repair it. Once the repairs have been completed, you
should press the reset button on the earth leakage relay or stop the engine
and then turn the circuit breaker on again. It is recommended that the correct
current values and tripping times are selected for the appropriate load prior to
starting the machine
(2) The generator is provided with the earth leakage relay to prevent operators from any
electrical shocks by detecting an earth leakage cause by insufficient insulation or
broken cable etc.
The earth leakage relay detects any earth leakage that may occur on the 3-phase
output. If any leakage is detected this would automatically cause the relay to activate.
The current values and the tripping times are adjustable as shown on tables 1 and 2.
(Notice): The 110V adjustable single phase output is covered with its
own earth leakage relay which is not adjustable
If the current values and tripping settings are made incorrectly, it can be more
dangerous than not having an earth leakage relay at all.
IMPORTANT NOTICE :
IT IS VERY IMPORTANT THAT ANY ADJUSTMENT TO THE CURRENT OR TIME
SETTING FROM THE FACTORY SETTINGS IS ONLY CARRIED OUT BY A FULLY
QUALIFIED ELECTRICAL ENGINEER.
The earth leakage relay has adjustable current and tripping times which are illustrated
in the following charts 1 & 2 by changing switch modes, the correct current and tripping
times can be selected.
19

4. Operation of the Generator - Continued
Table 1 setting of the related current
1 (Notice): This mode (switch 1 at “ON”) is given precedence to other switches 2 ~ 8.
Slide switch modeSet
current switch 1
2 3 4
30mA
0.04
sec.
Or less
O N
OFF
* 1
100mA O N
OFF
200mA O N
OFF
500mA O N
OFF
1000mA O N
OFF
20