the device switches to another channel (etc.). Once switched to a current channel, the system automatically
switches back to the voltage channel if a voltage channel is valid again.
Parameter Value Description
inactive
If the channels of the measuring point are not to be considered for deter-
mining the sampling frequency, please select the setting value inactive.
active
If you have set the parameter Tracking = active, the measuring point
will be included when determining the sampling frequency.
Note: If the parameter Tracking = active, the determined sampling
frequency applies to all functions in the device not using fixed sampling
rates.
Parameter: Magnitude correction
•
Default setting (_:3811:103) Magnitude correction = 1.000
When using the Magnitude correction parameter, the magnitude (magnitude correction) is adjusted for
the voltage input. This allows you to correct the tolerances of the primary current transformer phase-selec-
tively. The magnitude correction may be required for highly precise measurements. Use a comparison meas-
urement to determine the setting value (for example, with a high-precision measuring-voltage transformer). If
a primary correction is not necessary, retain the default setting.
NOTE
The Magnitude correction parameter has nothing to do with the internal adjustment of the input
circuit.
Settings
General Information
Addr.
Parameter C Setting Options Default Setting
General
_:2311:101 General:Phase sequence
•
ABC
•
ACB
ABC
Measuring Point I-3ph
Addr.
Parameter C Setting Options Default Setting
General
_:8881:115 CT 3-phase:CT connec-
tion
•
not assigned
•
3-phase + IN
•
3-phase
•
3-phase + IN-separate
•
3-phase, 2 primary CT
•
2
3ph,2prim.CT + IN-sep
•
2ph, 2p. CT + IN-sep
3-phase + IN
_:8881:127 CT 3-phase:Tracking
•
inactive
•
active
active
_:8881:130 CT 3-phase:Measuring-
point ID
0 to 100 0
CT phases
_:8881:101 CT 3-phase:Rated
primary current
1.0 A to 100 000.0 A 1000.0 A
6.1.8
Protection and Automation Functions
6.1 Power-System Data
312 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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