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Power Tech Generators PTI-25-30-T4F, Руководство оператора

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PTI-25-30-T4F Operators Manual 

EXCITER FIELD COIL VOLTAGE SOURCE 

Field coil DC voltage is obtained by rectifying the voltage from the phase to 

neutral line of the generator output, or either appropriate terminal to provide the needed 
voltage reference. 
The rectifier bridge is an internal part of the static regulator.  The static regulator senses 
a change in the generator output and automatically regulates current flow in the exciter 
field coil circuit to increase or decrease the exciter field strength.  An adjustable rheostat 
sized to be compatible with the regulator is used to provide adjustment of the regulator 
sensing circuit. 

 

 

ROTATING FIELD ASSEMBLY (ROTOR) 

 

The rotating field assembly consists basically of four members:  1) the shaft 

assembly, 2) the core assembly, 3) the field coil damper windings, and 4) balance lugs 
to provide a high degree of static  
and dynamic balance.   

CORE ASSEMBLY 

 

The core assembly consists of a quantity of thin steel plates compressed and 

fastened together to form a single laminated assembly. The field windings are wound 
around this assembly. 

FIELD COIL 

 

Field coils of heavily insulated wire 

are “wet” wound directly onto the poles.  Field 

coil leads are brought out to the rectifier assembly for connection to the source of 
DC excitation voltage. 

 

BALANCE 

  

 

The rotor assembly is precision balanced to a high degree of static and dynamic 

balance. Although the balance will remain dynamically stable at speeds in excess of the 
design frequencies, the prime mover should be adequately governed to prevent 
excessive over speed.  High centrifugal forces created by excessive over speed may 
damage the rotor windings and field coils. 
 

BEARING 

 

The generator rotor assembly is suspended on a shielded factory lubricated ball 

bearing. A visual inspection of the bearing is recommended at typical service intervals. 
If signs of abnormal wear or leakage are observed, the bearing should be replaced. 
Never use liquids of any kind to clean the generator end and bearing.  

STATOR ASSEMBLY 

The stator assembly consists of laminations of steel mounted in a rolled steel 

frame.  Random wound stator coils are fitted into the insulated slots. 

Содержание PTI-25-30-T4F

Страница 1: ...Generating Power to The World Power Technology Southeast 634 State Road 44 Leesburg FL 34748 8103 Phone 352 365 2777 Fax 352 787 5545 ...

Страница 2: ...gine Specifications 14 Wet Stacking 15 Engine Maintenance Schedule 16 Engine Oil Maintenance 17 Lubricating Oil Specifications 17 LUBRICATING OIL VISCOSITY 17 RECOMMENDATIONS 17 COOLANT RECOMMENDATIONS 18 CHECKING RADIATOR COOLANT LEVEL 18 COOLANT SERVICE LIFE 19 CHECKING RESERVOIR TANK 19 COOLANT LEVEL 19 CLEANING RADIATOR CHARGED AIR COOLER CORE 19 OPERATING HOURS and SERVICE LOG 20 GENERATOR AS...

Страница 3: ...Page 3 of 24 PTI 25 30 T4F Operators Manual BALANCE 22 BEARING 22 STATOR ASSEMBLY 22 Enclosure Information Error Bookmark not defined TROUBLESHOOTING 24 TROUBLE 24 POSSIBLE CAUSE 24 SUGGESTED ACTION 24 ...

Страница 4: ...manual was up to date at time of printing downloading there may be changes not reflected in your manual If there is any questions please contact Power Technology s customer service dept TO OUR CUSTOMERS Thank you for your purchase of a Power Technology Generator In the event you experience a problem with your generator please contact the sales dealer one of our authorized service centers or Power ...

Страница 5: ...t authorized in writing by Power Tech I Damage caused by operation with improper fuel or at speeds loads conditions modifications or installation contrary to published specifications or recommendations J Original installation charges and startup costs K Removal and re installation charges of more than 1 hour labor for outside units 2 hours for compartment mounted units and 3 hours for below deck m...

Страница 6: ... before you attempt to assemble or use this unit WARNING Indicates a potentially hazardous situation which may possibly result in serious injury or possible death CAUTION Indicates a potentially hazardous situation which may possibly result in minor injury IMPORTANT Indicates that equipment or property damage may result if instructions are not followed NOTE Indicates helpful information Cautious o...

Страница 7: ...clothing around machinery Entanglement in rotating parts controls or projections may cause persona injury Use additional safety items e g hardhat eye protection gloves etc as appropriate or required DO NOT operate machinery or equipment while under the influence of alcohol medication or other drugs or while fatigued DO NOT wear radio or music headphones while operating engine CHECK BEFORE OPERATIN...

Страница 8: ... DO NOT mix gasoline or alcohol with diesel fuel The mixture can cause a fire EXHAUST GASES AND FIRE PREVENTION Engine exhaust fumes can be very harmful if allowed to accumulate Be sure to run the engine in a well ventilated area where there are no people or livestock nearby The exhaust gas from the muffler is very hot To prevent a fire do not expose dry grass oil or any other combustible material...

Страница 9: ...l etc DO NOT remove the radiator cap while the engine is running or immediately after stopping Wait approximately ten minutes for the radiator to cool before removing the cap Be sure the radiator drain valve petcock and hose clamps are tightened Check radiator pressure cap and oil fill cap before operating the engine The battery presents an explosive hazard When the battery is being activated hydr...

Страница 10: ...mation of harmful substances Only use anti freeze that is recommended and approved by Engine Manufacturer Be mindful of the environment Before draining any fluids be prepared to dispose of them in a manner consistent with environmental protection regulations in your location When draining fluids from the engine use appropriate containers to hold the different fluids do not mix fuel oil or coolant ...

Страница 11: ...er the engine radiator muffler or muffler cover has cooled off completely Always use the appropriate tools and jig fixture when performing any service work Be sure to understand and follow the instructions included with these tools Use ONLY correct engine barring techniques for manually rotating the engine DO NOT attempt to rotate the engine by pulling or prying on the cooling fan and V belt Serio...

Страница 12: ... Fill add if necessary Check for absence of water in fuel drain if necessary Check for absence of DTC or failures Check for absence of excessive fan belt looseness Using the PTG Series Controller The LCD display is the primary source of information of the controller The LCD allows you to view change settings and monitor the status of sensors and other engine parameters NOTE The genset mounted cont...

Страница 13: ... the menu changing a settings value or changing the currently displayed parameter page Generator LED Green Engine running with no issues Amber Engine running with warnings Red Engine shutdown on failure Using the Menu System Task Description Entering Menu When in the OFF mode press the enter button to bring up the menu Navigating Menu Once in the menu use the up and down arrows to navigate Pressin...

Страница 14: ... waits to receive a stop command Failure When a failure occurs the controller shuts down the engine and displays reason for failure The unit must be reset using the front panel OFF button with the exception of Modbus Menu When in the menu you can change settings and view the events history Engine Specifications Engine Make Isuzu Engine Model 4LE2X EPA Tier Tier4 Final KWM 1800rpm 49 Oil type SAE 1...

Страница 15: ...equently because of the diverse load applications an automatic load bank is sometimes used A load bank will place a false load on the generator system to keep the diesel engine properly loaded to prevent a wet stack condition and automatically adjust the false load to the real load In smaller applications a false load can be provided by an electric heater or other high load appliances to ensure th...

Страница 16: ...ers need to be changed Maintenance Service Item See notes Daily 150 Hour Interval 500 Hour Interval 1000 Hour Interval Remarks Engine Oil Level deterioration Leakage x Engine Oil Change x x Or Once a Year Oil Filter Change x Or Once a Year Coolant Level x Coolant Leakage x Coolant Change x Or Once a Year Fuel Level x Fuel Leakage x Water in Fuel x x Primary Fuel filter Replacement x x Or Once a Ye...

Страница 17: ...cifications API Class CJ 4 Engine Oil LUBRICATING OIL VISCOSITY RECOMMENDATIONS The minimum ambient temperature during cold engine start up and the maximum ambient temperature during engine operation determine the proper SAE viscosity grade of oil Refer to the Engine Oil Viscosity Table below Lowest Ambient Temperature in order to determine the required oil viscosity for starting an engine in cold...

Страница 18: ...0 Percent 51 C 60 F 111 C 232 F PROPYLENE GLYCOL Freeze Boil Concentration Protection Protection 50 Percent 29 C 20 F 106 C 223 F NOTE Do not use Propylene Glycol in concentrations that exceed 50 percent glycol because of Propylene Glycol s reduced heat transfer capability Use Ethylene Glycol in conditions that require additional protection against boiling or freezing CHECKING RADIATOR COOLANT LEV...

Страница 19: ...ween the upper limit FULL and the lower limit LOW on the side of the reservoir tank CLEANING RADIATOR CHARGED AIR COOLER CORE Visually inspect the core for any obstructions such as dirt or debris Use running water to clean particles from between fins IMPORTANT Never use hard objects to clean radiator core damage to core could result IMPORTANT If your generator is equipped with remote radiator asse...

Страница 20: ...ICE LOG THIS SERVICE LOG IS PROVIDED TO HELP YOU KEEP AN ACCUMULATIVE RECORD OF OPERATION HOURS ON YOUR GENERATOR SET AND THE DATES REQUIRED SERVICES WERE PERFORMED ENTER TIME TO THE NEAREST HOUR Operating Hours Service Record Date Timer Cumulative Date Service performed ...

Страница 21: ...referred to as an Automatic Voltage Regulator AVR is a very reliable device which uses solid state electronics to maintain voltage accuracy at 2 of the regulated voltage The Voltage Regulator is designed to automatically regulate and maintain the generated AC voltage throughout the load range that is from no load to full load VOLTAGE CONNECTION The generator may be connected at the terminal board ...

Страница 22: ...ed and fastened together to form a single laminated assembly The field windings are wound around this assembly FIELD COIL Field coils of heavily insulated wire are wet wound directly onto the poles Field coil leads are brought out to the rectifier assembly for connection to the source of DC excitation voltage BALANCE The rotor assembly is precision balanced to a high degree of static and dynamic b...

Страница 23: ...Page 23 of 24 PTI 25 30 T4F Operators Manual ...

Страница 24: ... check crank connections Cranking fuse blown Replace fuse with new of identical size Engine cranks but doesn t start Out of fuel Check fuel level add fuel if necessary Fuse Blown Replace fuse in control box Fuel relay damaged Check fuel relay and replace if damaged Fuel System lost prime Use Primer on top of fuel filter Engine Starts but shuts down after a few seconds See failure on controller LCD...

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