7.12
I2/I1> – Unbalanced Load Protection
7.12.1
I2/I1>: Device Planning Parameters
I2/I1> . Mode
[Device planning / Projected Elements]
“-”
“-”, use
P.1
Unbalanced Load-Stage, general operation mode
I2/I1> . Definition
[Device planning / Definition]
Trip
Trip, Alarm
P.1
Unbalanced Load-Stage: If set to “Alarm”: The function operates as a supervision function, i.e. a fault generates
neither alarm nor trip, but an »Alarm« signal gets issued instead. If set to “Trip”: The function operates as a
protection function, i.e. trips the breaker in case of a fault.
7.12.2
I2/I1>: Settings
I2/I1> . Function
[Protection Para / I2/I1>]
Active
Inactive, Active
P.1
Permanent activation or deactivation of module/stage.
I2/I1> . I2/I1
[Protection Para / I2/I1>]
20%
10% . . . 40%
P.1
I2/I1 unbalance trip pickup setting (in percent), i.e. the ratio of negative sequence current I2 to the positive sequence
current I1.
I2/I1> . t
[Protection Para / I2/I1>]
0.1s
0.00s . . . 300.00s
P.1
Time delay for trip or alarm
I2/I1> . IH2 Blo
[Protection Para / I2/I1>]
Active
Inactive, Active
P.1
Blocking the trip command, if an inrush is detected.
53
WIC1
WIC1-1.0-EN-REF
7 Protection Parameter
7.12 I2/I1> – Unbalanced Load Protection