Table 1-15 Real Time Digital Simulation Test (Rtds); Table 1-16 Inrush Response Test (Rtds) - Siemens 7SR45 Argus User Manual

Type Test
Single Fault Condition IEC/EN 60255-27: Edition 2:
NOTE :
#
Pulse output X3 is excluded between any terminals and earth.
Table 1-15
Trip Response at different fault currents
Influence on Accuracy
Trip response at recurring faults
Table 1-16
Test Conditions
Test Result
© 2017 Siemens Protection Devices Limited
Reference
2013-10
Real Time Digital Simulation Test (RTDS)
Inrush Response Test
Parameters
Assessment of:
· Insulation between
circuits and parts
· Compliance with
requirements for
protection against
the spread of fire
· Overloads
· Intermittently rated
resistors
· Compliance with
requirements for
mechanical
protection
Fault Current: 1.1, 2, 3, 5, 10 times of set value
Influence of DC components
DC content at first peak : 100%
Decay time: 25 ms, 50 ms, 100 ms
Immunity to inrush current
nd
2 harmonic content : up to 28%
Relay behaviour at primary CT saturation
Fault currents: 10 A, 20 A, 40 A
Fault Current: 2 times and 5 times of set value.
Delay between recurring faults: 300 ms, 1 s, 2 s
Simulated Inrush current with 15 % 2nd
harmonic content
The relay does not operate until fault current
peak reaches 3 times the setting value
7SR45 Performance Specification
Values
The equipment
shall not present
a risk of electric
shock or fire after
a single-fault test.
Chapter 3 Page 9 of 10