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Chapter 3) 7SR17 Rho Performance Specification
1.4.3
Immunity
Auxiliary Supply Variation
1.4.3.1
IEC 60255-11
Type of Phenomena
Voltage Dips
(DC auxiliary supply)
Voltage Dips
(AC auxiliary supply)
Voltage Interruptions
(DC auxiliary supply)
Voltage Interruptions
(AC auxiliary supply)
Alternating
Component In DC
(Ripple)
(DC auxiliary supply)
Gradual Shut-down/
Start-up
(DC auxiliary supply)
Reversal of DC
Power Supply polarity
Key:
RV = Residual Voltage Test Value. Two conditions: (a) range voltage low-20% and
1
No effect on relay performance
2
Restart with no mal-operation, loss of data or relay damage
Chapter 3) Page 16 of 46
Test
Duration
Specifications
50ms
0% RV
(Claimed)
40% RV
200ms
70% RV
500ms
2.5/3
cycles
0% RV
@50/60Hz
(claimed)
10/12
40% RV
cycles
@50/60Hz
25/30
70% RV
cycles
@50/60Hz
0% RV
250/300
0% RV
cycles
@50/60Hz
15% max and min
Continuous
RV
Max & min RV to
0V
0V
5minutes
0V to min & max
RV
Max reversed RV
1minute
Normal Operation
Normal operation
the relay minimum voltage then Relay Restart
Normal operation
the relay minimum voltage then Relay Restart
Normal Operation
Normal Operation
Normal Operation
2
5s
Relay Reset
2
Relay Reset
Normal operation
60s
Relay Reset
Relay Off
2
60s
Relay Restart
24-60 V Dc models:
No operation
80-250 V DC, 115 V AC models:
Normal Operation
(b) range voltage high +20%
©2014 Siemens Protection Devices Limited
Declared Operation
1
1
except where Dip falls below
1
except where Dip falls below
1
1
1
1
1
2
2
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