PVCHECK
27
6.3.2. Carrying out an IVCK quick test without measuring irradiance
CAUTION
The maximum voltage between inputs P, N, E and C is 1000VDC. Do not measure
voltages exceeding the limits given in this manual
Do not perform test on PV modules or strings connected to the DC/AC converter
The maximum current which can be measured by the instrument is 10A. Before
carrying out the measures of IVCK and Insulation in "STRING" mode, always
ensure that the instrument is connected to ONE STRING and not more strings in
parallel to avoid possible damage of it
1. Switch on the instrument by pressing the
ON/OFF
key.
2. Check that the remote unit SOLAR-02 is not selected (see § 5.1.4
– setting NO)
3.
Check that the value of minimum irradiance set in section “Irradiance” (see §
5.1.5
) is equal to
0
.
4. Position the cursor onto
IVCK
by using the arrow keys (
,
) and
confirm with
ENTER
. The display shows the screen to the side: The
meaning of the parameters is the following:
Module
type of module being tested
Vdc
value of output voltage from module/string measured in
real time
Irr
value of irradiation measured in real time
Tc
value of module temperature (see § 5.5.1)
Voc, Isc
section with display of result OK/NO of Voc and Isc
measurement
Ri()
the value in brackets may be NO/selected test voltage
(see § 5.5.1). The value of Ri indicates the insulation resistance
Rpe()
the value in brackets may be NO, Cal or NoCal (see §
5.5.1). The value of Rpe indicates the result of the continuity test.
5. Press the
ENTER
key, select “
Settings
” and confirm again with
ENTER
. Set the instrument as
indicated in § 5.5.1
6. If necessary, press the
ENTER
key, select “
Reset Averages
” and confirm again with
ENTER
. If
necessary, carry out this operation as indicated in § 6.3.4
7. If necessary, press the
ENTER
key, select “
Leads calibration
” and confirm again with
ENTER
.
If necessary, carry out this operation as indicated in § 6.5.2
8. Connect the instrument to the module/string being tested and, if necessary, to the main earth
node of the system and to the earthed metal masses as shown in Fig. 6. In particular, connect
the negative output pole of the module/string to terminal N and the positive output pole of the
module/string to terminal P.
CAPTION:
E: Green cable
C: Blue cable
P: Red cable
N: Black cable
1.
PV module/string
2.
Main system earthing
3.
Earthed metal structure in the system
Fig. 6: Connection for IVCK test without irradiance measurement
Summary of Contents for PVCHECK
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