1MAC050144-MB C
Section 4
Protection functions
615 series ANSI
247
Technical Manual
Motor stalling and failure to start can lead to a continuous undervoltage. The
positive-sequence undervoltage is used as a backup protection against the motor stall
condition.
4.2.5.6
Signals
Table 249: 27PS Input signals
Table 250: 27PS Output signals
4.2.5.7
Settings
Table 251: 27PS Group settings
Table 252: 27PS Non group settings
4.2.5.8
Monitored data
Table 253: 27PS Monitored data
Name
Type
Default
Description
V
1
SIGNAL
0
Positive phase sequence voltage
BLOCK
BOOLEAN
0=False
Block signal for activating the blocking mode
Name
Type
Description
TRIP
BOOLEAN
Trip
PICKUP
BOOLEAN
Pickup
Parameter
Values (Range)
Unit
Step
Default
Description
Pickup value
0.010...1.200
xVn
0.001
0.500
Pickup value
Trip delay time
40...120000
ms
10
40
Trip delay time
Voltage block value
0.01...1.00
xVn
0.01
0.20
Internal blocking level
Enable block value
0=False
1=True
1=True
Enable Internal Blocking
Parameter
Values (Range)
Unit
Step
Default
Description
Operation
1=Enable
5=Disable
5=Disable
Operation Off / On
Reset delay time
0...60000
ms
1
20
Reset delay time
Relative hysteresis
1.0...5.0
%
0.1
4.0
Relative hysteresis for operation
Name
Type
Values (Range)
Unit
Description
PICKUP_DUR
FLOAT32
0.00...100.00
%
Ratio of pickup
time / trip time
27PS
Enum
1=enabled
2=blocked
3=test
4=test/blocked
5=disabled
Status
Summary of Contents for 615 Series ANSI
Page 1: ...Relion Protection and Control 615 series ANSI Technical Manual ...
Page 2: ......
Page 29: ...1MAC050144 MB C Section 615 series ANSI 22 Technical Manual ...
Page 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Page 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Page 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Page 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
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