NOVAR 2100/2200 Operating Manual
Tab. 4.2 : Installation Parameters
#
parameter group
range
default
comment
00 lock
LOC / OPN
OPN
see Instrument Setup
Locking / Unlocking
71 CT – ratio, multiplier
screen 1 : row 2 : nominal primary current
row 3 : nom. secondary current
(for “X/100mA”,“X/333mV” fixed)
screen 2 : MUL – current multiplier
primary : 1A ÷ 10 kA
sec. : 5A / 1A (0.1A)
(0.1 A, 0.333 V)
0.001 ÷ 999
5 / 5 A
1
secondary current selection
with the
key
par. placed in side branch
if the current multiplier
different from 1 the ▲/
▼flashes
72 connection type
row 2 : U1-angle
row 3 : connection type
6 combinations
1Y3 / 1D3
---
1Y3
74 conn. mode: direct (---) or VT–ratio, mult.
screen 1 : row 2 : primary U [ kV ]
row 3 : secondary U
[ kV ]
screen 2 : MUL – voltage multiplier
0.001 ÷ 65 kV
0.001 ÷ 0.999 kV
0.001 ÷ 999
direct
(- - -)
1
parameters placed in side
branch
if the voltage multiplier
different from 1 the ▲/
▼flashes
75 f
NOM
, U
NOM
row 2 : f
NOM
[ Hz ]
row 3 : U
NOM
[ V / kV ]
50 / 60 Hz
50 V ÷ 1MV
50
230
U
NOM
specification
depending on connection
mode :
- direct : line-to-neutral
- via VT : line-to-line
76 ΣP
NOM
[ kVA / MVA ]
1 kVA ÷ 999 MVA
-
77 averaging period
row 2 : for U/I group
row 3 : for P/Q/S group
0.01 ÷ 60
(1 sec÷ 60 mins)
1 min
15 min
floating window type
averaging method applied
as default
78 avg period for ΣMD, El-meter d. mode
line 2 : averaging period for ΣMD
line 3 : Electricity meter display mode
0.01 ÷ 60
“4E+MD” / “8E”
15 min
“4E+ MD”
floating window type
averaging method applied
as default
79 fund. harmonic PF display format
cos / tan / fi
cos
80 backlight
AUT / ON
AUT
AUT-mode : the backlight is
switched off automatically
after app. 5 mins if no key is
pressed
85 communication interface 1 (and 2, opt.)
for RS-485 / M-Bus :
screen 1: row 2 : address
row 3 : rate [ kBd ]
screen 2: Prt (protocol) – databits & parity
for Ethernet:
screen 1 : DHCP
screen 2÷5 : IP1÷ IP4 (IP)
screen 6÷9 : MA1÷ MA4 (Subnet Mask)
screen 10÷13 : Gt1÷ Gt4 (Gateway)
1 ÷ 255
2.4 ÷ 460
8 / 9-n / 9-E / 9-0
ON / OFF
0 ÷ 255
0 ÷ 255
0 ÷ 255
1
9.6
8
OFF
10.0.0.1
255.255.255.0
10.0.0.138
parameters placed in side
branch
89 instrument status (read only)
row 2 : failure specification
row 3 : serial no. & instr. version (scroll)
0 ÷ 255
-
0
-
r. 2 : 0 = failure-free
r. 3 : S...serial no.
F... firmware version
b...bootloader version
H...hardware version
4.3.2.2 Current and Voltage Multiplier
To get better precision when using overweighted CTs, you can apply more windings of measured wire
through the transformer. Then you must set so called multiplier. The current multiplier parameter is
placed in side branch of the P.71 parameter group and it is marked as “MUL”. For example, for 2
windings applied, set the multiplier to 1/2 = 0.5 .
For standard connection with 1 winding, the multiplier must be set to 1.
Similarly, the voltage multiplier can be set too (P.74 parameter group).
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