900-00277-01-001 Rev A
39
Operation
Grid Tab
The items under this tab affect the Mojave inverter’s interactions with the utility grid.
The items presented here are described on the designated pages. They may not appear in the
same order as shown below.
Grid Profile
— Range:
IEEE 1547-2003
,
IEEE 1547-2018
,
CA Rule 21
,
CA Rule 21 2022
,
HECO 14H
,
ISO NE
,
PREPA
. Default:
IEEE 1547-2003
Also known as a grid interconnection profile, this is the code or utility company regulation which specifies
a series of preloaded settings.
External CT
— Range:
Disabled
or
Enabled
. Default:
Enabled
The default reading of utility grid current would take place at the
G
RID
terminals. Once installed, the
current transducer (CT) adds an external location for current sensing. See page 27 (earlier) for a
simplified description of placement and operation. See the
Quick Start Guide
for wiring instructions.
When this is set to
Enabled
, the items below will change to
Export limit at external CT
and
Import limit
at external CT
to reflect the new monitoring locations.
Export limit (W)
— Reserved for future use.
Import limit (W)
— Range:
48000
to
0
. Default:
48000
Charge from grid limit (W)
— Range:
13200
to
0
. Default:
7860
Grid Protection Settings
The items below this point are a series of protective settings required by various regulations or
utility companies for interconnection.
Not all items are available with all
Grid Profile
s. The settings shown are for the
IEEE 1547-2003
profile. Certified ranges are only shown when they differ from the maximum range.
IMPORTANT:
For the configurations of other If the preconfigured
Grid Profile
items do not apply, each
setting can be customized.
Changing these settings requires
Installer
login as shown under the
Admin
tab on page
30. These settings should not be changed unless explicitly instructed by the utility
company or the appropriate authorities.
For the configuration of
Grid Profile
items other than the settings of IEEE 1547-2003,
see Table 15 and Table 16 beginning on page 91.
LV1 voltage (pu)
— Range:
0
to
0.98
Certified Range:
0.5
to
0.95
Default:
0.880
LV1 time (s)
— Range:
0.08
to
50
Certified Range:
0.1
to
50
Default:
2.00
LV2 voltage (pu)
— Range:
0
to
0.98
Certified Range:
0.25
to
0.70
Default:
0.500
LV2 time (s)
— Range:
0.08
to
50
Certified Range:
0.1
to
50
Default:
0.16
HV1 voltage (pu)
— Range:
1.02
to
1.2
Certified Range:
1.05
to
1.2
Default:
1.100
HV1 time (s)
— Range:
0.08
to
13
Certified Range:
0.1
to
13
Default:
1.00
HV2 voltage (pu)
— Range:
1.02
to
1.2
Certified Range:
1.05
to
1.2
Default:
1.200
HV2 time (s)
— Range:
0.08
to
13
Certified Range:
0.1
to
13
Default:
0.16
LF1 Hz (Hz)
— Range:
50
to
59.98
Certified Range:
50
to
59.9
Default:
59.3
LF1 time (s)
— Range:
0.16
to
1000
Certified Range:
0.16
to
1000
Default:
0.16
LF2 Hz (Hz)
— Range:
50
to
59.98
Certified Range:
50
to
59.9
Default:
57.00
LF2 time (s)
— Range:
0.16
to
1000
Certified Range:
0.16
to
1000
Default:
0.16
