Applications
•
This monitoring program works with multiple measurement repetitions and a lower priority than the
protection functions. Therefore, it may not pick up if measured values are changed spontaneously in the
event of a fault, before a pickup or tripping of the protection function occurs. This monitoring program is
therefore absolutely unsuitable for blocking protection functions.
Setting Notes
Setpoints for Measured Values
Setting is performed in the DIGSI configuration Matrix under Settings, Masking I/O (Configuration Matrix).
Apply the filter "Measured and Metered Values Only" and select the configuration group "Set Points (MV)".
Here you can insert new limit values via the Information Catalog which are subsequently linked to the meas-
ured value to be monitored using CFC.
This view also allows you to change the default settings of the limit values under Properties.
The settings for limit values must be in percent and usually refer to nominal values of the device.
For more details, see the SIPROTEC 4 System Description and the DIGSI CFC Manual.
Set Points for Statistic
Functional Description
For the statistical counters, setpoints may be entered and a message is generated as soon as they are reached.
The message can be allocated to both output relays and LEDs.
Setting Notes
Setpoints for the Statistical Counter
The setting of threshold values for the statistical counters takes place in DIGSI under Messages → Statistics in
the sub-menu Threshold Values for Statistics. Double-click to display the corresponding contents in another
window. By overwriting the previous value the settings can be changed (please refer to the SIPROTEC 4
System Description).
Information List
No.
Information Type of
Informa-
tion
Comments
- OpHour> LV Operating hours greater than
272 SP. Op Hours> OUT Set Point Operating Hours
16004 ΣI^x> LV Threshold Sum Current Exponentiation
16005 Threshold ΣI^x> OUT Threshold Sum Curr. Exponent. exceeded
16009 Resid.Endu. < LV Lower Threshold of CB Residual Endurance
16010 Thresh.R.Endu.< OUT Dropped below Threshold CB Res.Endurance
16017 ΣI^2t> LV Threshold Sum Squared Current Integral
16018 Thresh. ΣI^2t> OUT Threshold Sum Squa. Curr. Int. exceeded
Energy Metering
Metered values for active and reactive energy are determined by the device. They can be output via the
display of the device, read out with DIGSI via the operator interface or transmitted to a control center via port
B.
2.23.6.1
2.23.7
2.23.7.1
2.23.7.2
2.23.7.3
2.23.8
Functions
2.23 Auxiliary Functions
296 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017
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