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Test Mode
© Landis+Gyr AG
The test mode enables you to select which measuring value (active,
reactive, I², U²) is shown on the optical test output.
In the display, values for active, reactive and apparent energy are available.
Depending on parameter setting, the resolution of the display register can
be increased for faster testing. In the test mode, the resolution is increased
by one decimal point compared with the normal mode. A maximum of 5
decimal points is possible.
Select test mode
1.
Enter test mode
2.
Select required
3.
value
4.
Repeat step 3 for all values to be tested
5.
Exit test mode
Examples
First value and value x are examples. The real values are defined in the
parameter settings and are the same as the operating display.
The measured values are displayed at the optical test outputs as shown in
the following table:
Mode
Register on Display
Normal
Some sort of register
mode
Test mode
NLA register
(Transformer losses per phase
NLA1,NLA2,NLA3; Total
Transformer Losses NLA)
OLA register
(Line losses per phase OLA1,
OLA2, OLA3; Total line losses
OLA)
Reactive energy register
Active energy register or one of
not mentioned registers in this
table.
D000030110 d – E650 Series 3 (ZMD400AT/CT, ZFD400AT/CT) – User Manual
Maintenance
Test mode
First value
Value x
Operating
display
Test output
Test output
reactive
active
|R|
|A|
2
2
I
U
=1
with
with R
CU
R
=1 M
FE
2
2
U
I
with R
=1 M
with R
FE
|A|
|R|
|R|
|A|
=1
CU
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