Voltage Variations This generator set must be run at its proper speed to obtain the correct electrical power at its output. All engines have a tendency to slow down when a load is applied to it. The engine governor is designed to hold the operating speed as nearly constant as possible. When the electrical load is increased, the engine is more heavily loaded and engine speed drops slightly. This slight decrease in engine speed results in a slight decrease in generator voltage and frequency output. This voltage and frequency variation has no appreciable effect in the operation of motors, lights, and most appliances and tools. However, timing devices and clocks will not keep perfect time when used on this generator.

Reduced voltage to the load can also be caused by using the wrong extension cord. Small diameter wire will have a voltage drop across the cord when current flows through the wire. This voltage drop can be very significant over long cord lengths. Always use the proper wire size (gauge wire size) for the extension cord to minimize the voltage drop at rated current draw.

Problems and Solutions

Some of the more common problems are listed in Table 5-2. This information is intended to be a check or verification that simple causes can be located and fixed. It is not an exhaustive “how to” for all types of problems.

Table 5-2 Troubleshooting Guide

Problem

Possible Cause

Remedy

 

 

 

Engine will not start

No fuel.

Check that fuel valves are ON. Check fuel level in fuel tank.

 

Restricted air flow.

Check/replace air filter.

 

No spark.

Check/replace spark plug(s). Verify engine switch is in

 

Low oil level.

Oil sensor will prevent engine starting if oil level is low.

 

 

 

Engine will not crank (electric start)

Dead battery.

Remove battery and trickle charge or replace with new battery.

 

 

Never Jump Start.

 

 

 

Engine starts but will not run smoothly

Fuel or ignition problem

Have engine serviced.

 

 

 

Engine overheats

Excessive load

Remove one or more electrical loads.

 

Debris or dirt buildup on engine

Remove debris. Clean engine surfaces to allow cooling.

 

 

 

No output voltage

Ciruit Breaker tripped or defective.

Reset circuit breaker or replace if required.

 

Loss of residual magnetism in exciter

Flash field.

 

field poles.

Check for continuity in windings. Return to factory for repair if open.

 

Open in stator windings

 

Defective exciter circuit.

Check/replace diode and capacitor and flash the field.

 

 

 

Output voltage varies

Irregular speed (fixed speed mode)

Check engine for malfunction or load for fluctuation

 

Fluctuating speed (fixed speed mode)

Stabilize load. The addition of a lamp load (resistance load) may

 

 

compensate partially for load changes caused by intermittent motor

 

 

operation. Do not overload.

Loose terminal or load connections Defective bearing (uneven air gap)

Verify all connections are proper and check tighness torque of terminals.

Replace worn bearing

Low output voltage

Low engine speed

 

Excessive load

 

High resistance connections −

 

connections will be warm or hot

 

Shorted field

 

Low power factor

Check that the Auto Idle switch is in OFF position.

Check engine for malfunction or system for overload. Reduce load. Verify all connections are proper and check tighness torque of terminals.

Test field coils for possible short by checking resistance with an ohmmeter or resistancebridge. Return rotor assembly to factory forrepair if alternator field coils are shorted.

Reduce inductive (motor) load. Some AC motors use about the same current regardless of load. Do not use motors of greater horsepower rating than is necessary to move the mechanical load.

High output voltage

Excessive speed (fixed speed mode)

Check engine for malfunction

Electrical shock when frame is touched

Static charge.

Ground generator frame at local reference ground (see Section 3).

 

Grounded armature or field coil.

Return to factory for repair

 

 

 

MN2403

Troubleshooting and Maintenance 5-3

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Baldor PC32RI, PC43RI manual Problems and Solutions, Troubleshooting Guide

PC32RI, PC43RI specifications

The Baldor PC32RI and PC43RI are a pair of robust and efficient industrial motors designed for demanding applications, particularly in the food and beverage industry, packaging, and other heavy-duty sectors. These motors are known for their reliability and high performance, making them ideal for environments that require continuous operation.

One of the main features of the Baldor PC32RI and PC43RI is their high efficiency. These motors are designed to meet or exceed the efficiency standards set by the National Electrical Manufacturers Association (NEMA). This efficiency translates to reduced energy consumption, which not only lowers operating costs but also contributes to a smaller carbon footprint. The motors are engineered to optimize performance while minimizing heat generation, enhancing their longevity and reducing maintenance needs.

Another significant characteristic of these motors is their advanced design, which incorporates innovative technologies. The PC32RI and PC43RI feature robust construction with high-quality materials that ensure durability and reliability under harsh conditions. They include an adjustable base, allowing for flexible mounting options, which is crucial for various installation needs. The motors also come with sealed bearings, enhancing their reliability by preventing contamination from dust and moisture in industrial settings.

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In addition to these technological advancements, the Baldor PC32RI and PC43RI are also designed to be user-friendly. The motors come with comprehensive documentation and support, making installation and troubleshooting straightforward for operators. Their compact design allows for easy integration into existing systems without requiring extensive modifications.

Overall, the Baldor PC32RI and PC43RI stand out in the market due to their combination of efficiency, durability, and advanced technology. These motors are perfect for businesses seeking reliable solutions to enhance their productivity and reduce operational costs. With a strong emphasis on innovation and performance, Baldor continues to set a standard in the industrial motor industry.