Siemens 7SR45 Argus User Manual page 70
Self powered/dual powered non-directional overcurrent and earth fault relay
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- Device manual (118 pages) ,
- Manual (102 pages) ,
- User manual (68 pages)
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Type Test
Reference
RV = 48 V DC
Gradual shutdown /
Start-up test
IEC 60255-26
Voltage interruption
(AC/DC auxiliary
IEC 60255-26
supply)
RV = 48 V/220 V DC
RV = 230 V AC
Alternating
component in DC
IEC 60255-26
(Ripple)
DC Power supply
1
No effect on relay performance
2
Restart with no mal-operation, loss of data or relay damage
RV = Residual Voltage
Type Test
Ambient Operating
Temperature
Permissible Temporary
Operating Temperature,
(Tested for 16 h) *
Permissible Temporary
Operating Temperature,
(Tested for 96 h)
Storage Temperature
(Non-operational) #
Cold test operational
(Energized condition)
Cold test storage
(Unenergized
condition)
Dry heat test
operational
(Energized condition)
Dry heat test storage
(Unenergized condition)
Damp heat test, Steady
State
Damp heat test, Cyclic
©2018 Siemens Protection Devices Limited
Parameters
40 % RV for 0.2 s
70 % RV for 0.5 s
Shut down ramp 60 s
Power off 5 mins
Start up ramp 60 s
0 % RV at 5 s
15 % of DC voltage
Table 1-15
Reference
IEC 60068-2-1,
IEC 60068-2-2,
IEC 60255-1
IEC 60068-2-1,
IEC 60068-2-2,
IEC 60255-1
IEC 60068-2-1,
IEC 60068-2-2
IEC 60255-1
IEC 60068-2-1,
IEC 60068-2-2
IEC 60255-1
IEC 60068-2-1
IEC 60255-1
IEC 60068-2-2
IEC 60255-1
IEC 60068-2-78
IEC 60255-1
IEC 60068-2-30
IEC 60255-1
Chapter 3 - 7SR45 Performance Specification
Declared Operation
Normal Operation
Normal Operation
Normal Operation
Normal Operation
Normal Operation
Climatic Environmental Tests
Requirement
-10°C to + 60°C
-40°C
LCD display operating range: -20°C to + 70°C
-20°C to + 70°C
-25°C to + 70°C
-10°C, 96 h
-25°C, 16 h
+60°C, 96 h
+70°C, 16 h
10 days at 93 ± 3 % RH, +40°C
+25...55°C, R.H. > 93 % RH (6 cycles)
At lower temperature, 97 %, -2 % +3 % RH
At upper temperature, 93 %, ± 3 % RH
2
2
2
2
1
Chapter 3 Page 10 of 14
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