Alstom Reason RPV311, Technical Manual

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RPV311 Chapter 4
– Configuration
RPV311-TM-EN-6 67
To improve the accuracy of the measurement, a correction factor can be manually provided. Inputs without
the correction factor have accuracy better than 1%.
The digital channels do not have type selection.
Figure 13: Analog inputs configuration section
A The P
OSITION
indicates the position of each analog input on the back panel of the module.
B The I
NPUT
scroll box allows user to select the type of the signal to be measured (AC voltage 115 V, AC
current 1 A, AC current 5 A, DC current 0-20 mA or DC voltage ±10 V).
C The A
DJUSTMENT
text field allows user to enter a correction factor to adjust the accuracy of the
measurement.
3.5 ACQUISITION WITH SAMPLED VALUES
The RPV311 data acquisition can be performed by Sampled Values data, incoming of Merging Units. The
acquisition is done by connecting the Process Bus Ethernet port to the Sampled Values generator.
If the acquisition is done by Sampled Values, there is no physical link to configure. The configuration is
performed by Subscription links. Each subscription link contains data of 4 current (Phases A, B, C and
Neutral) and 4 voltage (Phases A, B, C and Neutral) circuits.
Once a subscription link is created, the RPV311 automatically configures the first channels as current and
the last as voltage, as shown in Figure 86. This is done because the Merging Units send the Sampled Values
package according to the IEC 61850-9-2LE.