Generac Power Systems 5412, 5411, 5413, 5415, 5414, 5410 manual Measuring Current, Measuring Resistance

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Section 4

MEASURING ELECTRICITY

Correct engine and Rotor speed is maintained by a stepper motor governor. For models rated 60 Hertz, the governor is generally set to maintain a no-load fre- quency of about 60 Hertz with a corresponding output voltage of about 124 volts AC line-to-neutral.

Measuring Current

To read the current flow, in AMPERES, a clamp-on ammeter may be used. This type of meter indicates current flow through a conductor by measuring the strength of the magnetic field around that conductor. The meter consists essentially of a current trans- former with a split core and a rectifier type instrument connected to the secondary. The primary of the cur- rent transformer is the conductor through which the current to be measured flows. The split core allows the Instrument to be clamped around the conductor without disconnecting it.

Current flowing through a conductor may be mea- sured safely and easily. A line-splitter can be used to measure current in a cord without separating the conductors.

Figure 4-2. – Clamp-On Ammeter

Figure 4-3. – A Line-Splitter

NOTE: If the physical size of the conductor or ammeter capacity does not permit all lines to be measured simultaneously, measure current flow in each individual line. Then, add the Individual readings.

Measuring Resistance

The volt-ohm-milliammeter may be used to measure the resistance in a circuit. Resistance values can be very valuable when testing coils or windings, such as the Stator and Rotor windings.

When testing Stator windings, keep in mind that the resistance of these windings is very low. Some meters are not capable of reading such a low resistance and will simply read “continuity”.

If proper procedures are used, the following condi- tions can be detected using a VOM:

❏A “short-to-ground” condition in any Stator or Rotor winding.

❏Shorting together of any two parallel Stator wind- ings.

❏Shorting together of any two isolated Stator wind- ings.

❏An open condition in any Stator or Rotor winding.

Component testing may require a specific resistance value or a test for “infinity” or “continuity.” Infinity is an OPEN condition between two electrical points, which would read as no resistance on a VOM. Continuity is a closed condition between two electrical points, which would be indicated as very low resistance or “ZERO” on a VOM.

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Contents Diagnostic Repair Manual Safety Table of Contents Section Electrical Data 78-79 Magnetism Electromagnetic FieldsElectromagnetic Induction Simple AC Generator More Sophisticated AC GeneratorGenerator Operating Diagram Field Boost Generator AC Connection SystemConnection for 120 Volts Only Rotor Assembly Stator AssemblyBrush Holder Excitation Circuit ComponentsCrankcase Breather DescriptionControl Panel Component Identification Control Panel ComponentsInsulation Resistance Testers Cleaning the GeneratorEffects of Dirt and Moisture Drying the GeneratorStator Insulation Resistance Testing Rotor Insulation Testing Rotor InsulationTesting Stator Insulation MegohmmeterMeasuring AC Voltage MetersVOM Measuring DC VoltageMeasuring Current Measuring ResistanceElectrical Units Ohm’s LawIntroduction Operational AnalysisCircuit Condition Cranking Circuit Condition Running Circuit Condition Shutdown Battery Cables BatteryRecommended Battery Printed Circuit BoardStart-Stop Switch Amp FuseStart-Stop Switch Starter Contactor Relay Starter MotorIf Problem Involves AC Output Problem 1 Voltage & Frequency Are Both High or LowTest Troubleshooting Flowcharts Proble 5 Priming Function Does Not Work Gasoline Models Problem 6 Engine Will Not Crank Test 26 Check Test 20 Check Check Fuel Wire 14 Power Good Troubleshooting Flowcharts Problem 8 Engine Starts Hard and Runs Rough Gasoline Units Problem 8 Engine Starts Hard and Runs Rough LP Units LOW OIL Pressure Flashes on SW1 LED Problem 10 7.5A F1 Fuse Blowing YESTest 2 Check Stepper Motor Control ProcedureTest 1 Check No-Load Voltage Frequency DiscussionSix Pin J2 Connector Wire Colors Test 4 Fixed Excitation Test/Rotor Amp DrawFixed Excitation Test, Step B Test 5 Check Field Boost Test 6 Test Stator DPE WindingTest 7 Check Sensing Leads / Power Windings Stator Excitation WindingStator Power Winding Leads Test 8 Check Brush LeadsTest 10 Check Rotor Assembly Test 9 Check Brushes & Slip RingsTest 12 Check Load Voltage Frequency SchematicTest 11 Check Main Circuit Breaker Test 13 Check Load Watts AmperageTest 14 Try Cranking the Engine Test 15 Check Fuel PumpTest 17 Check Battery & Cables Test 18 Check Power Supply to Printed Circuit BoardTest 16 Check 7.5 Amp Fuse Test 19 Check Continuity of Wire Test 20 Check Start-Stop SwitchTest 21 Check Power Supply to Wire Test 22 Check Starter Contactor RelayTest 23 Check Starter Contactor Test 24 Check Starter MotorChecking the Pinion PinionTools for Starter Performance Test Minimum rpm 4500 Maximum Amps Test 25 Check Fuel Supply To Carburetor GASTest 26 Check Wire 14 Power Supply 29. Fuel RegulatorTest 27 Check Wire Test 28 Check Fuel Solenoid Gasoline ModelsTest 29 Check Ignition Spark Tools RequiredTwo Ignition Testers Generac P/N 0C5969Test 31 Check and Adjust Ignition Magnetos Test 30 Check Spark Plugs37. Setting Ignition Magneto Armature Air Gap Test 32 Check Valve Adjustment Checking Flywheel MagnetFlywheel KEY Test 33 Check Carburetion Test 34 Check Choke SolenoidTo Control Solenoid PanelTest 36 Check Oil Pressure Switch Test 37 Check Wire 86 for Continuity Test 38 Test Oil Temperature SwitchTest 39 Check Wire 85 for Continuity Test 40 Test Choke HeaterTest 41 Check LPG Fuel Solenoid Section Exploded Views QTY Description Enclosure Drawing No G3881-C Enclosure Door Views Screw Plastite HI-LOW #10X3/8 Engine Accessories Drawing No G7718-B QTY Description 48,49 Square Head Plug Rotor & Stator Drawing No G3953-b NUT TOP Lock FL M8-1.25 Charts Generator Specifications Nominal Resistances of Generator Windings at 68fElectrical Data Electrical Data OG7515 REV. a

5410, 5414, 5415, 5413, 5411 specifications

Generac Power Systems has established itself as a leading manufacturer of backup power solutions, particularly known for its range of generators designed for both residential and commercial use. Among their noteworthy products are the Generac models 5412, 5411, 5413, 5415, and 5414. Each of these generators showcases innovative technologies and features that enhance reliability, efficiency, and ease of use.

The Generac 5412 is a versatile model equipped with a robust 10 kW output, making it suitable for powering essential home appliances during outages. It operates using a 1.0 L engine that runs on natural gas or propane, providing flexibility in fuel options. The Quiet-Test feature is a notable characteristic, as it allows for a self-test at a reduced volume, minimizing noise disruptions during routine checks.

Moving to the Generac 5411, this generator offers a higher output capacity of 13 kW. It integrates advanced load management technology, which ensures that power is allocated efficiently among connected devices. This model also features a Mobile Link remote monitoring system, enabling users to check generator status and performance from anywhere via a smartphone app.

The Generac 5413 is tailored for larger residential needs, delivering an impressive 16 kW output. It boasts a durable all-weather aluminum enclosure designed for longevity against the elements. The 5413's integrated wifi connectivity allows for real-time monitoring and alerts, ensuring that homeowners are always informed of their generator's operating status.

For those seeking a balance of power and efficiency, the Generac 5415 offers 20 kW of output while maintaining a compact design. This model is enriched with the patented G-Flex technology, allowing it to adjust engine speed based on the load requirements, thereby conserving fuel and reducing noise levels. Additionally, the 5415 comes with an intuitive user interface for effortless operation and programming.

Finally, the Generac 5414 rounds out the lineup with its strong 24 kW capability. This model is particularly known for its Smart Management modules, which facilitate the safe and efficient distribution of power. Its intuitive design also includes a user-friendly control panel for straightforward operation, ensuring that homeowners, regardless of technical expertise, can utilize the system effectively.

In summary, Generac Power Systems’ 5412, 5411, 5413, 5415, and 5414 generators exemplify advanced power technology, tailored for reliability and user convenience. Whether for essential home functions or more extensive power needs, these models provide effective solutions to ensure that homes remain powered during outages.
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