Generac Power Systems 16 kW NG Manual De Usuario
Page 1
contents
specifications .......................................................... 4
Generator ................................................................ 4
Engine ..................................................................... 5
Fuel Consumption ................................................... 5
Mounting Dimensions .............................................. 6
Mounting Dimensions .............................................. 7
Major Features ........................................................ 8
Part 1 - GENEral iNformatioN ....................... 9
1.1 Generator Identification ................................... 10
Introduction ......................................................10
1.2 Installation Basics ............................................ 11
Introduction ......................................................11
Selecting A Location ........................................11
Grounding The Generator ................................11
The Fuel Supply ...............................................11
The Transfer Switch / Load Center ...................11
Power Source And Load Lines .........................13
System Control Interconnections .....................13
Natural Gas Fuel Interconnections ..................13
1.3 Non-prepackaged Interconnections ................ 14
Connect a Pre-2008 Load Center Switch
To a Current or Future
Air-Cooled Generator. ..................................14
To a Current or Future
Air-Cooled Generator. ..................................14
Connect a 2008 And Later Load Center
Switch to a Pre-2008
Air-Cooled Generator. ..................................15
Switch to a Pre-2008
Air-Cooled Generator. ..................................15
1.4 Preparation Before Use ................................... 16
General ............................................................16
Fuel Requirements...........................................16
Fuel Consumption ............................................16
Reconfiguring The Fuel System .......................16
Engine Oil Recommendations .........................18
1.5 Testing, Cleaning and Drying........................... 19
Meters ............................................................19
The Vom ...........................................................19
Measuring AC Voltage .....................................19
Measuring DC Voltage .....................................19
Measuring AC Frequency ................................19
Measuring Current ...........................................20
Measuring Resistance .....................................20
Electrical Units .................................................21
Ohm’s Law .......................................................21
Visual Inspection ..............................................22
Insulation Resistance .......................................22
The Megohmmeter...........................................22
Stator Insulation Resistance Test (12-20 kW) ..... 23
Stator Insulation Resistance Test (8-10 kW) ....... 23
Rotor Insulation Resistance Test (8-10 kW) ........ 24
Rotor Insulation Resistance Test (12-20 kW) ...... 24
Cleaning The Generator...................................24
Drying The Generator ......................................24
1.6 Engine-Generator Protective Devices ............. 25
General ............................................................25
Low Battery ......................................................25
Low Oil Pressure Shutdown .............................25
High Temperature Switch .................................25
Overspeed Shutdown ......................................25
Rpm Sensor Failure .........................................25
Overcrank Shutdown .......................................26
1.7 Operating Instructions ..................................... 27
Control Panel ...................................................27
To Select Automatic Operation ........................28
Manual Transfer To “Standby”
and Manual Startup .....................................28
and Manual Startup .....................................28
Manual Shutdown And
Retransfer Back To “Utility” ..........................28
Retransfer Back To “Utility” ..........................28
1.8 Automatic Operating Parameters .................... 29
Introduction ......................................................29
Automatic Operating Sequences .....................29
Part 2 - ac GENErators .................................. 31
2.1 Description and Components .......................... 32
Introduction ......................................................32
Engine-Generator Drive System ......................32
The AC Generator ............................................32
Rotor Assembly ................................................32
Stator Assembly ...............................................33
Brush Holder And Brushes (12-20 kW) ...........34
Other AC Generator Components ...................34
2.2 Operational Analysis ....................................... 35
Rotor Residual Magnetism...............................35
Field Boost (12-20 kW) ....................................35
Operation (8/10 kW) .........................................36
Operation (12-20 kW) ......................................36
2.3 Troubleshooting Flowcharts ............................. 37
Problem 1 – Generator Produces Zero
Voltage or Residual Voltage (12-20 kW) ... 37-38
Voltage or Residual Voltage (12-20 kW) ... 37-38
Problem 2 – Generator Produces Zero
Voltage or Residual Voltage (8/10 kW) ........38
Voltage or Residual Voltage (8/10 kW) ........38
Problem 3 – Generator Produces
Low Voltage at No-Load...............................39
Low Voltage at No-Load...............................39
Problem 4 – Generator Produces
High Voltage at No-Load ..............................39
High Voltage at No-Load ..............................39
Problem 5 – Voltage and Frequency Drop
Excessively When Loads are Applied ..........40
Excessively When Loads are Applied ..........40
2.4 Diagnostic Tests .............................................. 41
Introduction ......................................................41
Safety ............................................................41
Test 1 – Check Main Circuit Breaker ................41
Test 2 – Check AC Output Voltage ...................41
Test 4 – Fixed Excitation Test/Rotor
Amp Draw Test ....................................42
Test 5 – Wire Continuity (12-20 kW) ................43
Test 6 – Check Field Boost (12-20 kW) ...........44