TB MRI3-ITE(R) 12.00 E
3
6 Relay testing and commissioning
6.1
Power-On
6.2
Testing the output relays and LEDs
6.3
Checking the set values
6.4
Secondary injection test
6.4.1
Test equipment
6.4.2
Example of test circuit for
MRI3-ITE
6.4.3
Checking the input circuits and measured
values
6.4.4
Example of a test circuit with earth fault
directional feature
6.4.5
Checking the operating and resetting
values of the relay
6.4.6
Checking the relay operating time
6.4.7
Checking the high set element of the
relay
6.4.8
Checking the external blocking and reset
functions
6.4.9
Testing the external blocking with
Block/Trip function
6.4.10
Test of the CB failure protection
6.5
Primary injection test
6.6
Maintenance
7 Technical data
7.1
Measuring circuits
7.2
Common data
7.3
Setting ranges and steps
7.3.1
Systemparameter
7.3.2
Time overcurrent protection and thermal
replica
7.3.3
Earth fault protection
7.3.4
Earth fault protection (
ER-Type
)
7.3.5
Determination of earth fault direction
(
MRl3-ITER
)
7.3.6
BlockTrip – time**
7.3.7
Switch failure protection
7.3.8
Interface parameter
7.3.9
Parameter for the fault recorder
7.4
Tripping characteristics
7.4.1
Thermal characteristic
7.4.2
Preload factor
7.4.3
Inverse time overcurrent protection relay
7.5
Tripping characteristics
7.6
Output relays
8 Order form
