UMG 96-PA
/ UMG 96-PA
MID
www.janitza.com
36
12.3.2 Current transformer and voltage
transformer / rated current
In order for the device to operate as defined, you
will need to set the correct current and voltage
transformer ratios and the rated current.
When connecting voltage transformers, observe
the measurement voltage specified on the device
nameplate!
·Open the configuration menu (see chapter 12
“
ConfiiuratFon
”).
·Using keys 3 (
) and 4 (
) select the menu
item “
Measurement
” from the configuration
menu.
·Confirm using key 6 (Enter).
·Using keys 3 (
) and 4 (
) select the submenu
“
Measurement
” and confirm by pressing key 6
(Enter).
·Press keys 2 to 5 (
) to select the
desired setting and confirm it with key 6 (Enter).
·Using keys 2 (
) and 5 (
) set the number
position.
·Using keys 3 (
) and 4 (
) to change the
number (-1 / +1).
·Confirm your entries with key 6 (Enter) or cancel
the action with key 1 (Esc).
·Exit the view
“Measurement L1g.g.L3
” by pressing
key 1 (Esc).
·Exit the view “
Measurement
” by pressing key 1
(Esc).
·Exit the configuration menu by pressing key 1
(Esc).
·Press key 1 (Esc) to open the main menu.
·Select the desired measured value display with
keys 3 (
) and 4 (
) . Confirm the selection
with key 6 (Enter) or navigate directly to the
measured value display
“OvervFew”
by pressing
key 1 (Esc).
Settings:
·Current transformer (primary):
Setting range:
0 - 32000 A
Default setting:
5 A
·Current transformer (secondary):
Setting range:
1 - 5 A
Default setting:
5 A
·Voltage transformer (primary):
Setting range:
0 - 32000 V
Default setting:
400 V
·Voltage transformer (secondary):
Setting range:
0 - 999 V
Default setting:
400 V
·Rated current:
Setting range:
0 - 999999 A
Default setting:
150 A
To determine power frequency, a voltage greater
than 20 V
eff
(4-conductor measurement) or
a voltage L1-L2 greater than 34 V
eff
(3-conductor
measurement) must be present at voltage
measurement input V1.
NOTE
Devices set to automatic frequency recognition
require about 5 seconds until the power
frequency is determined. During this time, the
measured values do not adhere to the promised
measurement uncertainty.
NOTE
The adjustable value “0” for the primary current
transformer does not yield a reasonable energy
value and must not be used.
NOTE
If the power frequency is outside of the 45-
65 Hz range
·No errors or warning message is issued.
·If a constant frequency is indicated (
50/60 Hz
),
the relevant setting is used.
·The last frequency calculated in the range
of 45-65 Hz is used if automatic frequency
detection (
auto
) is selected.
The frequency calculation runs for a period of
10 seconds. The frequency does not constitute
a 200 ms measured value!
Fig.
DFsplay “Measurement L1g.g.L3”, confiiuratFon of
the current and voltaie transformer ratFos and
the rated current
