Table 446:
87LOZREF Non group settings (Basic)
Parameter
Values (Range)
Unit
Step
Default
Description
Operation
1=enable
5=disable
1=enable
Operation Disable / Enable
CT connection type
1=Type 1
2=Type 2
2=Type 2
CT connection type
Table 447:
87LOZREF Non group settings (Advanced)
Parameter
Values (Range)
Unit
Step
Default
Description
Reset delay time
0...60000
ms
1
20
Reset delay time
4.3.3.8
Monitored data
Table 448:
87LOZREF Monitored data
Name
Type
Values (Range)
Unit
Description
PICKUP_DUR
FLOAT32
0.00...100.00
%
Ratio of pickup time / trip time
RES2H
BOOLEAN
0=False
1=True
2nd harmonic restraint
IDIFF
FLOAT32
0.00...80.00
xIn
Differential current
IBIAS
FLOAT32
0.00...80.00
xIn
Stabilization current
87LOZREF
Enum
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Status
4.3.3.9
Technical data
Table 449:
87LOZREF Technical data
Characteristic
Value
Operation accuracy
Depending on the frequency of the measured
current: f
n
±2 Hz
±2.5% of the set value or ±0.002 x I
n
Pickup time
1)2)
Minimum
Typical
Maximum
I
Fault
= 2.0 × set
Trip
value
37 ms
41 ms
45 ms
Reset time
Typically 40 ms
Reset ratio
Typically 0.96
Table continues on next page
1MAC059074-MB A
Section 4
Protection functions
615 series ANSI
549
Technical Manual
Summary of Contents for Relion 615 series
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