Inrush Detector Inrphar - ABB Remote I/O RIO600 Installation And Commissioning Manual

Section 6
Commissioning
6.1.6.9
144

Inrush detector INRPHAR

Identification
Description
Three-phase inrush detector
Functionality
The three-phase inrush detector function INRPHAR is used to coordinate transformer
inrush situations in distribution networks. Transformer inrush detection is based on
the following principle: the output signal BLK2H is activated once the numerically
derived ratio of second harmonic current I_2H and the fundamental frequency current
I_1H exceeds the set value.
The operating time characteristic is according to the definite time (DT).
Operation principle
The Operation setting is used to enable or disable the function. The corresponding
parameter values are "On" and "Off".
The operation of INRPHAR can be described with a module diagram. All modules in
the diagram are explained in the next sections.
I_2H_A
I_2H_A /
I_1H_A
I_2H_B
I_2H_B /
I_1H_B
I_2H_C
I_2H_C /
I_1H_C
detector
GUID-E9F06FB4-115F-4244-AFC7-767936805CF8 V1 EN
Figure 81: Functional module diagram
IEC 61850
identification
INRPHAR
AND
I_1H_A
AND
I_1H_B
AND
I_1H_C
Level
1MRS757488 H
IEC 60617 ANSI/IEEE C37.2
identification device number
3I2f> 68
Timer
t
Timer
t
OR BLK2H
Timer
t
Installation and Commissioning Manual
RIO600