1-7
The frequency variation of Yamaha inverter gen-
erators is less than 0 .1% .
Voltage Variation
The output voltage with no load is approximately
10% higher than rated voltage for a case of conven-
tional synchronous type generators to achieve the
rated voltage when full rated load is connected. Thus
the voltage variation occurs due to the change in
engine speed and the influence of the internal resis-
tance.
However, adapting an inverter system, the voltage
variation can be minimized, because the output volt-
age cannot be influenced directly from engine
speed.
The voltage variation of Yamaha inverter genera-
tors is smaller than 3% .
The waveform distortion rate of Yamaha inverter
generators is smaller than 2 .5% .
Continuous Running Time
EF3000iSE is able to run for 20.5 hours with 1/4
load with fuel tank full, when economy control switch
is on.
With rated load: 8.0 hours
With 1/4 load: 20.5 Hours
Refer to Section 3 for model specific run times and
rated load information.
Frequency Variation
Conventional synchronous generators have an
engine speed with no load set at approximately 6%
higher than rated engine speed (3600rpm for 60 Hz)
to maintain rated frequency when full rated load is
applied. This is the reason why no-load frequency is
slightly higher than rated frequency.
However, adapting an inverter system, which gener-
ates genuine sine wave electricity, the frequency
variation of an inverter generator is not influenced by
the engine speed. Therefore, an inverter generator
provides constant AC output frequency even if the
load changes which is equivalent quality to the com-
mercial power supplies.
Generator Information and Theory
EF3000iSE new model guide 3/14/03 4:20 PM Page 5
Summary of Contents for EF4500iSE - Inverter Generator
Page 1: ...YAMAHA GENERATOR THEORY DIAGNOSTICS GUIDE...
Page 4: ......
Page 34: ......
Page 50: ...2 16 Yamaha Generator Theory Diagnostics Guide...
Page 51: ...2 17 Generator Diagnostics...
Page 53: ...2 19 Inverter Generator Diagnostics...
Page 54: ...2 20 Yamaha Generator Theory Diagnostics Guide...
Page 76: ......
Page 101: ...3 25 Current Model Specifications and Wiring Diagrams EF2800i INVERTER GENERATOR EF2800i...
Page 102: ...3 26 Yamaha Generator Theory Diagnostics Guide EF2800i WIRING DIAGRAM...
Page 103: ...3 27 Current Model Specifications and Wiring Diagrams EF2800i 5W 30...
Page 104: ...3 28 Yamaha Generator Theory Diagnostics Guide...
Page 105: ...3 29 Current Model Specifications and Wiring Diagrams EF2800i...
Page 106: ...3 30 Yamaha Generator Theory Diagnostics Guide...
Page 107: ...3 31 Current Model Specifications and Wiring Diagrams EF2800i...
Page 108: ...3 32 Yamaha Generator Theory Diagnostics Guide...
Page 117: ...3 41 Current Model Specifications and Wiring Diagrams YG4000DE...
Page 118: ...3 42 Yamaha Generator Theory Diagnostics Guide INVERTER GENERATOR EF4000DE...
Page 119: ...3 43 Current Model Specifications and Wiring Diagrams YG4000DE 5W 30...
Page 120: ...3 44 Yamaha Generator Theory Diagnostics Guide...
Page 121: ...3 45 Current Model Specifications and Wiring Diagrams YG4000DE...
Page 122: ...3 46 Yamaha Generator Theory Diagnostics Guide...
Page 123: ...3 47 Current Model Specifications and Wiring Diagrams YG4000DE...
Page 124: ...3 48 Yamaha Generator Theory Diagnostics Guide...
Page 125: ...3 49 Current Model Specifications and Wiring Diagrams YG4000DE...
Page 126: ...3 50 Yamaha Generator Theory Diagnostics Guide INVERTER GENERATOR EF4500iSE...
Page 127: ...3 51 Current Model Specifications and Wiring Diagrams EF4500iSE EF4500iSE WIRING DIAGRAM...
Page 128: ...3 52 Yamaha Generator Theory Diagnostics Guide...
Page 129: ...3 53 Current Model Specifications and Wiring Diagrams EF4500iSE 5W 30...
Page 130: ...3 54 Yamaha Generator Theory Diagnostics Guide...
Page 131: ...3 55 Current Model Specifications and Wiring Diagrams EF4500iSE...
Page 132: ...3 56 Yamaha Generator Theory Diagnostics Guide...
Page 133: ...3 57 Current Model Specifications and Wiring Diagrams EF4500iSE...
Page 134: ...3 58 Yamaha Generator Theory Diagnostics Guide...
Page 135: ...3 59 Current Model Specifications and Wiring Diagrams EF4500iSE...
Page 136: ...3 60 Yamaha Generator Theory Diagnostics Guide...
Page 147: ...3 71 Current Model Specifications and Wiring Diagrams EF6300iSDE INVERTER GENERATOR EF6300iSDE...
Page 148: ...3 72 Yamaha Generator Theory Diagnostics Guide EF6300iSDE WIRING DIAGRAM...
Page 149: ...3 73 Current Model Specifications and Wiring Diagrams EF6300iSDE...
Page 150: ...3 74 Yamaha Generator Theory Diagnostics Guide...
Page 151: ...3 75 Current Model Specifications and Wiring Diagrams EF6300iSDE...
Page 152: ...3 76 Yamaha Generator Theory Diagnostics Guide...
Page 164: ...3 88 Yamaha Generator Theory Diagnostics Guide EF12000DE...
Page 165: ...3 89 Current Model Specifications and Wiring Diagrams EF12000DE EF12000DE...
Page 166: ...3 90 Yamaha Generator Theory Diagnostics Guide EF12000DE...
Page 167: ...3 91 Current Model Specifications and Wiring Diagrams EF12000DE EF12000DE...
Page 168: ...3 92 Yamaha Generator Theory Diagnostics Guide EF12000DE...
Page 169: ...3 93 Current Model Specifications and Wiring Diagrams EF12000DE EF12000DE...
Page 170: ...3 94 Yamaha Generator Theory Diagnostics Guide CONVENTIONAL GENERATOR EF12000DE Control Box...
Page 171: ...3 95 Current Model Specifications and Wiring Diagrams EF1200DE EF12000DE WIRING DIAGRAM...
Page 180: ...3 104 Yamaha Generator Theory Diagnostics Guide CONVENTIONAL GENERATOR YG4000D...
Page 181: ...3 105 Current Model Specifications and Wiring Diagrams YG4000D...
Page 182: ...3 106 Yamaha Generator Theory Diagnostics Guide YG4000D WIRING DIAGRAM...
Page 183: ...3 107 Current Model Specifications and Wiring Diagrams YG4000D...
Page 184: ...3 108 Yamaha Generator Theory Diagnostics Guide 5W 30...
Page 185: ...3 109 Current Model Specifications and Wiring Diagrams YG4000D...
Page 186: ...3 110 Yamaha Generator Theory Diagnostics Guide...
Page 187: ...3 111 Current Model Specifications and Wiring Diagrams YG4000D...
Page 188: ...3 112 Yamaha Generator Theory Diagnostics Guide...
Page 189: ...3 113 Current Model Specifications and Wiring Diagrams YG4000D...
Page 190: ...3 114 Yamaha Generator Theory Diagnostics Guide...
Page 218: ...2009 Yamaha Motor Corporation U S A Printed in U S A LIT BKTEC GN 01...