Recommended Control And Signal Wire Sizes; Recommended Motor Lead Lengths; Table 3.5 - Recommended Power Wire Sizes For 25-60 Hp Drives; Table 3.6 - Recommended Power Wire Sizes For 60-100 Hp Drives - Reliance electric GV3000 Instruction Manual

Table 3.5 - Recommended Power Wire Sizes for 25-60 HP Drives
Type of Wiring
Terminals
Size of Wire (Maximum)
A-C Input Power
R/L1, S/L2, TL3
Output Power U/T1, V/T2, W/T3
2/0 AWG (2X), 185 (mm?)
D-C Input Power
+,-
Table 3.6 - Recommended Power Wire Sizes for 60-100 HP Drives
Type of Wiring Terminals Size of Wire (Maximum)
1L1,1L2,1L3
AC Input Power 2L1, 212 4/0 AWG, 95 (mm?)
Output Power U, Vv, W
A-C Ground PE 2 AWG, 35 (mm?)
D-C Input Power 45, 47 4/0 AWG, 95 (mm?)
D-C Ground aL 6 AWG, 16 (mmz2)
Table 3.7 - Recommended Power Wire Sizes for 100-150 HP Drives
Type of Wiring Terminals Size of Wire (Maximum)
1L1, 1L2,1L3
A-C Input Power , ,
p
2L1, 2L2
2/0 AWG (2X), 185 (mm?)
Output Power U, Vv, W
A-C Ground PE 4/0 AWG, 95 (mm?)
D-C Input Power 45, 47 2 AWG, 35 (mm?)
D-C Ground a 6 AWG, 16 (mm?)
3.2.2.3 Recommended Control and Signal Wire Sizes
The recommended wire sizes to connectI/O signals to the terminal strip on the Regulator board are
shown in table 3.8. Recommend terminal tightening torque is 0.5 Newton-meters (4.5 in-lbs).
Table 3.8 - RecommendedTerminalStrip Wire Sizes
Terminals
Wire Size
1 to 31
20 to 14 AWG, 2 to 0.5 (mm?)
3.2.2.4 Recommended Motor Lead Lengths
The following motor lead lengths are recommendedto reduceline disturbances and noise. See
figure 3.3.
For applications using one motor, motor lead length should not exceed 76 meters (250 feet).
For applications with multiple motors, total motor lead length should not exceed 76 meters
(250 feet).
When total lead length exceeds 76 meters (250 feet), nuisance trips can occur. These trips are
caused by capacitive current flow to ground. Note that these capacitively-coupled currents should be
taken into consideration when working in areas wheredrives are running. If the motor lead length
must exceed theselimits, output line reactors or other steps must be taken to correct the problem.
Note that drives set up for vector regulation can only be connected to one motor at a time.
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