COMBI521
EN - 11
5.1.2. Country
Move the cursor to
Country
by means of the arrow keys
(
,
) and confirm with
ENTER
. Subsequently, the display
shows the screen which allows selecting the country of
reference, which will influence the LOOP and Ra
measurements.
Select the desired option by means of the arrow keys (
,
).
To store settings, press the
ENTER
key, to quit without
confirming the changes made, press the
ESC
key.
S E T
15/10 – 18:04
E u r o p e
E x t r a E u r o p e
G e r m a n y
U K
N o r w a y
U S A
A u s t r a l i a / N e w Z e a l a n d
5.1.3. Electrical system
Move the cursor to
Electrical system
by means of the arrow
keys (
,
) and confirm with
ENTER
. Subsequently, the
display shows the screen which allows setting the following
parameters:
Vnom
Phase-Neutral or Phase-PE nominal voltage
(110V,115V,120V,127V,133V,220V,230V,240V) to be
used in the calculation of prospective short-circuit current
Frequency
system frequency (50Hz, 60Hz)
System
type of electric power supply system (TT, TN
or IT)
Contact Volt
limit of contact voltage (25V, 50V)
I RCD
type of trip-out RCD current visualization (Real,
Nom). With the “Nom” option, the instrument shows the
normalized value of trip-out current (referred to the
nominal current).
Example
: for RCD type A with
Idn=
30mA
, the actual value of normalized trip-out current
can be up to
30mA
. With the “Real” option, the instrument
shows the actual value of trip-out current by considering
the coefficients indicated by guidelines IEC/EN61008 and
IEC/EN61009 (1.414 for RCD type A, 1 for RCD type AC,
2 for RCD type B).
Example
: for RCD type A with
Idn=
30mA
, the actual value of trip-out current can be up to
30mA
*
1.414 = 42mA
.
RCD/RCCB
When selecting the “RCD” option, the
instrument performs the tripping time test with all
multipliers in normal conditions. When selecting the
“RCCB” option,
only for 30mA devices
, the instrument
performs the tripping time test with x5 multipliers with a
test current of 250mA (type AC) and 350mA (type A).
Isc Factor
(
only for Norway
) possibility to select
the
value of the ISC factor (0.01 ÷ 1.00) to be used in the
calculation of prospective short-circuit current.
Select the desired option by means of the arrow keys (
,
).
To store settings, press the
ENTER
key, to quit without
confirming the changes made, press the
ESC
key
S E T
15/10 – 18:04
Vnom.
:
230V
Frequency
:
50Hz
System
:
TN
Contact Volt
:
50V
I RCD
:
Nom.
RCD/RCCB
:
RCD
Isc Factor
:
0.75
