Safety
153378
xi
8. The equipment grounds on the GT100 are marked with
.
9. AC overcurrent protection for the utility interconnect (Grid-tie) must be
provided by the installers as part of the GT100 installation.
Inverter Isolation Transformer
The GT100 includes a custom, high-efficiency, isolation transformer. The utility
side windings of the isolation transformer are configured Wye and must match the
voltage at the utility inter-tie. The GT100 is a balanced, three-phase, current-
sourcing inverter and only operates with the presence of a stable utility voltage.
The transformer is supplied with a neutral connection on both the Primary and
Secondary windings. Connection of these neutral terminals will affect the
operation of the GT100 and must be left floating or disconnected. Single-phase,
grounded loads which may be present between the transformer and utility, will
maintain their existing ground reference at the utility distribution transformer.
Operational Safety Procedures
Never work alone when servicing this equipment. A team of two is required until
the equipment is properly de-energized, locked-out and tagged, and verified de-
energized with a meter.
Thoroughly inspect the equipment prior to energizing. Verify that no tools or
equipment have been inadvertently left behind.
CAUTION: Fire Hazard
In accordance with the National Electrical Code, ANSI/NFPA 70, connect only to a circuit
provided with 400 amperes maximum branch circuit overcurrent protection for models
GT100-208-NG and GT100-208-PG, and only to a circuit provided with 200 amperes
maximum branch circuit overcurrent protection for models GT100-480-NG and GT100-480-
PG.
CAUTION: Equipment Damage
If the Isolation Transformer neutral (H0 and X0) terminals are tied to ground, they may
cause irreparable damage to the GT100. Check local regulations for their requirements
regarding the connection of these neutrals.
Содержание GT100-208
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