Seg MRU3-1, Руководство пользователя

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2 TB MRU3-1 12.00 E
Contents
1 Introduction and application
2 Features and characteristics
3 Design
3.1 Connections
3.1.1
Analog input circuits
3.1.2 Blocking input
3.1.3 Reset input
3.1.4 Output relays
3.1.5 Fault recorder
3.1.6 Parameter settings
3.2 LEDs
3.3 Front
plate
4 Working principle
4.1 Analog circuits
4.2 Digital circuits
4.3 Voltage supervision
4.3.1 Selection of star or delta connection
4.4 Blocking function
5 Operations and settings
5.1 Display
5.2 Setting
procedure
5.3 Systemparameter
5.3.1
Display of residual voltage U
E
as
primary quantity (U
prim
/U
sec
)
5.3.2
∆
/Y – Switch over
5.3.3 Setting of nominal frequency
5.3.4 Display of the activation storage
5.3.5 Parameter switch/external triggering for
the fault recorder
5.4 Protection parameters
5.4.1 1-phase or 3-phase U</U>-
tripping
5.4.2
Parameter setting of over- and under-
voltage supervision
5.4.3 Adjustment of the slave address
5.4.4 Setting of Baud-rate (applies for Modbus-
Protocol only)
5.4.5 Setting of parity (applies for Modbus-
Protocol only)
5.5 Parameter for the fault recorder
5.5.1 Adjustment of the fault recorder
5.5.2 Number of the fault recordings
5.5.3 Adjustment of trigger occurences
5.5.4 Pre-trigger time (T
pre
)
5.6 Date and time
5.6.1 Adjustment of the clock
5.7 Indication of measuring values
5.7.1 Measuring indication
5.7.2 Unit of the measuring values displayed
5.7.3 Indication of fault memory data
5.8 Fault memory
5.9 Additional functions
5.9.1 Setting procedure for blocking the
protection functions
5.9.2 Reset
5.9.3
Erasure of fault storage
6 Relay testing and commissioning
6.1 Power-On
6.2
Testing the output relays
6.3 Checking the set values
6.4 Secondary injection test
6.4.1 Test equipment
6.4.2 Example of the test circuit
6.4.3 Checking the input circuits and
measuring functions
6.4.4 Checking the operating and resetting
values of the over/undervoltage
functions
6.4.5
Checking the relay operating time of the
over/undervoltage functions
6.4.6 Checking the external blocking and reset
functions
6.5 Primary test
6.6 Maintenance
7 Technical Data
7.1 Measuring input circuits
7.2 Common data
7.3 Setting ranges and steps
7.3.1 Interface parameter
7.3.2 Parameter for the fault recorder
7.4 Output relays
8 Order form