Utility Ac Voltage - Delta M Series Operation And Installation Manual

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4.2

Utility AC voltage

The Delta M series inverters are grid-tied to the public utility. Delta NA inverters are software con-
figurable via the user display panel for various 208 Vac or 240 Vac 60 Hz public utility
grid as shown in figures 16-22.
AC connection voltage and frequency limits:
Voltage range for 208 V nominal, line to line
Voltage range for 240 V nominal, line to line
Frequency Range
Table 3: AC connection voltage and frequency limits
Public grid configurations allowed:
 
Figure 15: 240V / 120V Split Phase AC Grid
24
The PV AC output circuits are isolated from the enclosure.
system Ground Electrode Conductor (GET) when required by Natio-
nal Electric Code (NEC), ANSI/NFPA 70 Sections 690.41, 690.42,
and 690.43 is the responsibility of the installer.
Les circuits d'entrée et de sortie de cette unité sont isolés du boîtier.
La mise à la terre du système doit être effectuée conformément au
National Electrical Code (NEC), ANSI/NFPA 70 Sections 690.41,
690.42, and 690.43, et l'installateur est responsable de cette mise
en conformité.
The Delta M series NA Inverters should never be connected to a
120 Vac utility service. NEC 690.64(b)(1) requires that the inverter
be connected to a dedicated circuit with no other outlets or devices
connected to the same circuit.
Les onduleurs nord-américains Delta M series ne doivent jamais
être connectés à un service d'électricité publique de 120 Vca.
NEC 690.64(b)(1) exige que l'onduleur soit connecté à un circuit
dédié ne comportant aucune autre sortie ou aucun autre dispositif
connecté(e) au même circuit.
185 V - 226 V
213 V - 262 V
59.3 Hz - 60.5 Hz
 
Figure 16: 208V Delta AC Grid
The PV

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