ABB PST Installation And Maintenance Manual page 170

Figure 2: Circuit diagram PST30...3000
170
AC 1006.9 - 5/03
Chapter 12 - Diagrams
12:2 Circuit Inside Delta diagram PST30...PST300
(HIGH VOLTAGE)
Terminal 3 is a functional ground, it is not a protective
ground. It shall be connected to the mounting plate.
Low Voltage Products & Systems
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