Baldor ISO9001 manual No Voltage, LOW Voltage

Page 37

TROUBLESHOOTING - GENERATOR

As with any machine, trouble may develop in electrical generators. It may be due to long service or neglect of regular maintenance. Servicing, and checking. Should trouble develop, the following instructions will be helpful in tracing the cause and making repairs.

SPEED DEVITIONS:

The generator speed should be maintained at rated nameplate speed. The frequency and voltage of the generator output depends on speed. If the generator runs slower than rated speed, the voltage will drop off.

 

NO VOLTAGE

CAUSE

CHECK AND REMEDY

Loss of residual magnetism in

Flash Field.

exciter field poles.

 

Open in stator windings

Check for continuity in windings. Return to factory for

 

repair if open

Open or short in rotating rectifiers.

Check rectifiers.

Short Circuited.

Clear lead to restore voltage build-up.

Open in alternator field

Check for continuity and return rotor to factory for

 

repair if field coils are open.

Shorted exciter armature

Check for short and replace if faulty.

Shorted leads between exciter

Test and repair

armature and generator field.

 

 

LOW VOLTAGE

CAUSE

CHECK AND REMEDY

Excessive load.

Reduce load. With 3 phase generators, the load on

 

each leg should be as evenly balanced as possible

 

and should not exceed the rated current on any leg.

Low Speed.

Check engine for malfunction or system for overload.

Line loss.

Increase size of line lead wire.

Image 37
Contents Standby Permanent Mount Series Generator Forward Page Page Ż ż for Gasoline or Diesel Powered Generator Sets ż ż ż ż Ż ż for Gasoline or Diesel Powered Generator Sets ż ż ż ż Standby PERMANENT- Mount Series Generator Baldor Baldor Generator Features OptionsEngine Specifications Farm Duty 1-Phase Model DLC25Model D50 PowerPAC Farm Duty 1-Phase Model DLC50Model D60 Engine Specifications Farm Duty 1-Phase Model DLC60Model D75 Engine Data Farm Duty 1-Phase Model DLC75Model D100 Model DLC100 Farm Duty 1-PhaseModel D130 Farm Duty 1-Phase Model DLC130 Electrical Connection Information Hard Wire Load Terminal BlockConnection Information Engine Cooling Requirements Generator Mounting RequirementsStandby Permanent Mount Series Generator Engine Cooling AIR Backpressure must not exceed 20 of water column HOT Exhaust GasesPage Generator END Cooling AIR Building VentilationBuilding Ventilation Exhaust Piping Exhaust RequirementsExhaust Thimble Minimum O.D Exhaust Piping Thru Walls and RoofsDouble Thimble Roof Outlet Details Control Panel Operation Function Page Page Operation Starting Operation Cranking Control LOW Voltage No VoltageHigh Voltage Fluctuating VoltageOverheating Mechanical Noise Generator Frame Produces Shock When TouchedTroubleshooting Engine Limited Warranty Warranty Period Limitations RPM Distributor Information END User / Owner InformationKVA CurrentPre Start-Up Check List Start-Up Procedure Oregon Street Oshkosh WI Phone 920-239-4200 Fax California Proposition 65 Warning Oregon Street Oshkosh WI Phone 920 236-4200 Fax 920