Seg WI Series User Manual

4.7.1
Functionality
I2> .
[Device planning / Definition]
Char
I2> . Trip
INV
21
20
I2> . Alarm
&
&
DEFT
&
I2> .
tMin
≥1
◄
I2> – Negative-Sequence Current Protection
wiNPSDOC_Y29
2
I2> . Active
&
I2> . Pickup
19
IH2 . Block. L1
IH2 . Block. L2
5
6
7
IH2 . Block. L3
≥1
Φ
IL2
I2> .
I2
IL1
IL3
PPS
NPS
filter
I2
Φ
0
t
I2> .
tChar
I2> .
tReset
I2> .
Reset Mode
&
I2> .
t
t
0
Trip
Alarm
CT .
Phase Sequence
[Field Para / General Settings]
ACB
ABC
I2> .
DEFT
INV *
Fig. 57:
Functionality of the Negative-Sequence Current protection.
* “INV” symbolizes a selected inverse-time characteristics.
157WIC1WIC1-1.0-EN-MAN
4 Protective Elements
4.7.1 Functionality

Seg WI Series Specifications

General

Brand	Seg
Model	WI Series
Category	Relays
Language	English