- 20 -
:Electrical damages
If the load exceeds the allowable amperage, the overheating may damage the cable.
If the cable is either too long or too small a gauge, there will be greater voltage drop to loads,
which may result in reduced performance in the connected loads, malfunction, or damages.
<Caution>
It is recommended to select the proper gauge and length of cable, with consideration of
the maximum 5% marginal drop only for the rated voltage, between the terminals of
loads and generator via the cables.
■
Expedient Expression : the voltage drop of cables
3-Phase 3-Wire
1 Length(m)
Voltage Drop (V) = ----- x ----------------- x Current (A) x
√3
58 Gauge(mm
2
)
1-Phase 2-Wire
1 Length(m)
Voltage Drop (V) = ------ x ------------------ x Current (A) x 2
58 Gauge(mm
2
)
■
Selection of cable
(Example) 220V and Voltage Drop 11V
3-Phase 3-Wire Cap Tire Cable, Single Core
(Unit: mm
2
)
Length
Current
50m
or below
75m
100m
125m
150m
200m
50A
8
14
14
22
30
30
100A
14
22
30
38
50
60
200A
38
50
60
80
100
125
300A
50
60
100
100
125
150
(Example) 100V and Voltage Drop 5V
1-Phase 2-Wire Cap Tire Cable, Single Core
(Unit: mm
2
)
Length
Current
50m
or below
75m
100m
10A
5.5
5.5
8
20A
8
14
22
30A
14
22
22
50A
22
30
30
100A
30
50
60
Caution
Summary of Contents for DG1000MI
Page 51: ...51 13 Generator Wiring Diagram...
Page 52: ...52 14 Engine Wiring Diagram...