Parameter:
59NIT-n Time Mult
•
Default setting:
1
This setting defines the time multiplier that is applied to the selected inverse voltage curve. If a DTL char-
acteristic is selected, this setting is not used.
Parameter:
59NIT-n Delay (DTL)
•
Default setting:
0.1 s
This is the time delay setting for the element when the DTL characteristic is selected. This should be set to
suit the individual application. When a curve characteristic is selected, this setting is not used.
Parameter:
59NIT-n Reset
•
Default setting:
0 s
The reset parameter is used to define whether the element pickup resets to zero instantaneously when
the operating voltage falls below setting or a reset curve characteristic or fixed DTL is applied. This opera-
tion is significant during intermittent faults or fluctuating voltage levels.
•
Tripping Function
These elements can be used as an alarm or monitoring function. Triggering of waveform storage must be
configured if required. If the element is a tripping function it must be configured to a designated
Trip
Contact
to trigger a
Fault Record
.
Settings Menu
Functions > Protection > 59N > Gn 59N Common
Parameter
Range
Settings
Default Gn1
Gn2
Gn3
Gn4
Input Selection
Vn
V4
Ph-Ph
Functions > Protection > 59N > Gn 59NDT-n
Parameter
Range
Settings
Default Gn1
Gn2
Gn3
Gn4
Element
Enabled
Disabled
Disabled
Setting
1 to 200 V, Δ 0.5 V
80 V
Delay
0 to 20 s Δ 0.01 s
20 to 100 s Δ 0.1 s
100 to 1000 s Δ 1 s
1000 to 10000 s Δ 10 s
10000 to 14400 s Δ 100 s
0.1 s
Functions > Protection > 59N > Gn 59NIT-n
Parameter
Range
Settings
Default Gn1
Gn2
Gn3
Gn4
Element
Enabled
Disabled
Disabled
Setting
1 to 200 V, Δ 0.5 V
Char
Time Mult (IEC ANSI)
0.1 to 10, Δ 0.1
10.5 to 140, Δ 0.5
1
5.17.5
Protection and Automation Functions
5.17 59N Neutral Voltage Displacement
Reyrolle 7SR5, Transformer Protection Device, Device Manual
267
C53000-G7040-C015-1, Edition 11.2019
Содержание Reyrolle 7SR5
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