Table 2. Functions used in preconfigurations. Column 'n' shows the total number of
available function instances regardless of the preconfiguration selected., continued
Functionality
A
B
n
Frequency gradient
-
-
6
Overfrequency
-
-
3
Underfrequency
-
-
3
Overexcitation protection
1)
-
-
2
Three-phase underimpedance protection
1)
-
-
2
Transformer differential protection for two-winding transformers
1
1
1
Circuit-breaker failure (HV side)
1
1
2
Tripping logic (LV side)
1
1
2
Tripping logic (HV side)
1
1
Multipurpose analog protection
-
-
16
Control
Bay control
1
1
1
Interlocking interface
4
4
10
Circuit breaker/disconnector control
4
4
10
Circuit breaker
1
1
2
Disconnector
3
3
8
Local/remote switch interface
-
-
1
Synchrocheck
-
-
1
Tap changer control with voltage regulator
1)
-
-
1
Generic process I/O
Single point control (8 signals)
-
-
5
Double point indication
-
-
15
Single point indication
-
-
64
Generic measured value
-
-
15
Logic rotating switch for function selection and LHMI presentation
-
-
10
Selector mini switch
-
-
10
Pulse counter for energy metering
-
-
4
Event counter
-
-
1
Supervision and monitoring
Transformer Protection and Control
1MRS756978 D
RET630
Product version: 1.1
Issued: 2011-05-18
ABB
7
Содержание Relion 630 Series RET630
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