Connecting To The Electrical Grid - Advanced Energy AE 75TX Installation And Operation Manual

Advanced Energy
4-12
considerations for ampacity, temperanire, and conduit. In addition, wire should be
sized to minimize voltage drop.
Install the inve1ter on a dedicated branch circuit with a recommended circuit breaker
rating as specified in the following table.
Table 4-1.
Branch breaker size recommendations
Model 208 VAC 480VAC 600 VAC
AE 75TX 300A 125 A lOOA
AE lOOTX 400A 175 A 125A
The inve1ter does not have internal AC fusing so it is impo1 tant to size the branch
circuit protection appropiiately.
When an inve1 ter is installed on an electiical panel, the AC operating voltage range
of the inve1 ter should be considered. Voltages outside this range will cause the
inve1ter to fault. See the unit specifications for AC operating voltage ranges.
Table
4-2. Operational voltage ranges per electrical panel
Electrical Panel Operational Voltage Range
208 VAC 183 VAC to 228 VAC
480VAC 422 VAC to 528 VAC
600VAC 528 VAC to 660 VAC
Related Links
• "Electrical Specifications" on page 9-1
CONNECTING TO THE ELECTRICAL GRID
The inve1ter is connected to the electiical giid using four wires:
• Phase A voltage
• Phase B voltage
• Phase C voltage
• Ground
Important
Do NOT connect a neutral wire to the wye point of the isolation transfonner.
The four AC tennination bus bars for phases A, B, C, and gi·ound are located in the
lower right of the AC panel. The phase bus bars are ve1tically mounted and the
gi·otmd bus bar is horizontally mounted at the bottom of the cabinet. Each bus bar has
eight rows of two 3/8" diameter holes, spaced 1" apa1t ve1tically.
Installing 570-1001793-0SB