Man. NVIP3 – Rel 1.3 EN (UK)
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4.2.1 - Connections Setup
This menu allows the user to:
●
Set the type of electrical network to which the instrument is
connected (Sect. 4.2.1.1).
●
Set the type of voltage and voltage ratio for phases L1, L2, and L3
(Sect. 4.2.1.2).
●
Set the type of voltage and voltage ratio for U AUX (Sect. 4.2.1.3).
●
Activate/deactivate measurements in cogeneration mode (Sect.
4.2.1.4).
●
Automatically adjust the zero level of measuring channels (Sect.
4.2.1.5).
●
Check if the instrument and relevant probes are connected to the
electrical system correctly (Sect. 4.2.1.6).
4.2.1.1 - Type of Electrical Connection Setup
To set the type of connection, enter the
CONNECTIONS SETUP
Menu, place the cursor on
GRID TYPE
and
select one of the following options (See Sect. 3.2):
●
3PH+N-BL
= balanced three-phase system with neutral (Page 12)
●
3PH-BL
= balanced three-phase system without neutral (Page 12)
●
3PH
= unbalanced three-phase system without neutral (Page 12)
●
3PH+N
= unbalanced three-phase system with neutral (Page 12)
●
2PH
= two-phase system (Page 13)
●
1PH
= single-phase system (Page 13)
4.2.1.2 - Type of Voltage & Voltage Ratio (VT) Setup for L1, L2, L3 phases
NanoVIP
3
can measure both alternate and direct current. The user must set the type of voltage to be analysed,
selecting
AC
(alternate current) or
DC
(direct current).
When a voltmeter transformer has to be connected, i.e. when voltages higher than 600VAC must be measured,
the corresponding transformation ratio must be set (default value = 1), changing the values as needed (1 to
60000).
4.2.1.3 - Type of Voltage & Voltage Ratio (VT) Setup for U AUX
As described in the previous section, the same settings can be applied to the auxiliary voltage channel U Aux.
4.2.1.4 - Cogeneration Setup
NanoVIP
3
can also be configured to measure the power and energy that might be generated. To do so, place
the cursor on
GENERATION
and select
ON
.
By selecting
OFF
, the instrument will stop measuring the power generated,
which will be considered absorbed
power.
NOTE
: when changing from Generation ON to Generation OFF,
the counters of generated power are not reset.
4.2.1.5 - Zero Adjustment
After disconnecting the voltage and current input channels from the measuring grid, place the cursor on
START
and press
to correct the offset, in case the latter has deviated. A page with numerical values will be
displayed for the duration of the zero adjustment procedure (10-20”). When the procedure is complete, the
system will automatically return to the CONNECTIONS SETUP page.
4.2.1.6 - Connection Check
Once the instrument has been configured and connected to the system, the instrument can check if the
connection to the electrical system has been performed correctly (to perform this check, the PF value must
comply with the value indicated on the screen).
Place the cursor on
Connection Check
and press
to perform the check. The related outcome will then be
displayed.
