Environmental Performance; Table 1-7 Binary Outputs; Table 1-8 Front Communication Port; Table 1-9 Data Storage - Siemens 7SR45 Argus User Manual

Self powered overcurrent and earth fault relay
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Table 1-7
Number
Operating Voltage
Operating Mode
Operating Time from
energizing Binary Input
Making Capacity:
Carry continuously
Make and carry
(L/R £ 40 ms and
V £ 300 V)
Breaking Capacity
( £ 5 A and £ 125 V DC,
250 V AC):
AC Resistive
AC Inductive
DC Resistive
DC Inductive
Table 1-8
Quantity
Electrical connection
Table 1-9
Fault Record
Events
Table 1-10
Altitude above sea level
1.3

Environmental Performance

This section describes about the environmental tests performed with 7SR45 Self Powered relay under different
conditions.
Table 1-11
Type Test
Vibration
Shock and Bump
Degree of Protection
Seismic
© 2017 Siemens Protection Devices Limited
Binary Outputs
2 (1 NO contact and 1 C/O contact)
Voltage Free
Self reset/Hand reset
< 20 ms
5 A AC or DC
20 A AC or DC for 0.5 s
30 A AC or DC for 0.2 s
1250 VA
250 VA at p.f. £ 0.4
75 W
30 W at L/R £ 40 ms
50 W at L/R £ 10 ms
Front Communication Port
1
USB, Type B
Data Storage
10 records
100 events (1 ms resolution)
Environment
Maximum upto 2000 m
Mechanical Tests
Reference
IEC60255-21-1
IEC 60255-21-2
IEC 60529
IEC 60255-21-3, Class I
Requirement
Class 1
( Endurance 1g, Response 0.5g)
Shock response, Class I
Shock withstand, Class I
Bump, Class I
IP52 front
IP20 rear
In single axis sine sweep in X-axis
Sweep (@ a sweep rate of 1 octave/min)
vibration in the frequency range
(1 Hz - 35 Hz) at amplitude of 3.5 mm or 1.0 gn
(whichever is less)
7SR45 Performance Specification
Chapter 3 Page 5 of 10

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