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Energize Procedure (Startup)
153378
2–27
5. Open, lockout, and tag the DC Disconnect Switch (S1) on the right side of the
GT100. See Figure 1-8 on page 1–11 for the location of the DC
Disconnect Switch.
6. Using a confirmed, accurate meter, verify all power to the inverter is de-
energized. A confirmed, accurate meter must be verified on a known voltage
before use. Ensure that all incoming energy sources are de-energized by
checking the following locations at all line-to-line and all line-to-ground
configurations.
•
AC Utility Terminals: [TB1-A, TB1-B, TB1-C, TB1-N, and
TB2(GND BUS)]
See Figure 2-10 on page 2–27 for the location of these terminals.
•
PV Terminals: [TB3, TB4, and TB5 (PV GND)]
See Figure 2-11 on page 2–28 for the location of these terminals.
WARNING: Shock Hazard
Xantrex recommends the installation of PV array disconnect(s) to ensure personal safety
during GT100 maintenance.
WITHOUT PV ARRAY DISCONNECT(S), ONCE THE
DC DISCONNECT SWITCH (S1) IS OPEN,
THERE WILLSTILL BE DC
VOLTAGE on the DC terminals TB3, TB4 AND TB5 (PV GND)
. This voltage may be
as high as the open-circuit voltage of the PV Array and is limited to 600Vdc per NEC 690.
Use extreme care to avoid these terminals if no PV array disconnect is installed.
Figure 2-10
AC Utility Terminals
TB1
N
A
TB2
B
C
Summary of Contents for GT100-208
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