Seg WI Series Reference Manual

9.13 I2/I1> – Unbalanced Load Protection
9.13.1
I2/I1>: Device Planning Parameters
I2/I1> . Mode [Device planning / Projected Elements]
“-”
Only available if:
• Prot . Settings valid = Software•
“-”, use
╚═▷ Device planning
P.1
Unbalanced Load-Stage, general operation mode
I2/I1> . De󰈛nition [Device planning / De󰊟nition]
Trip
Only available if:
• Prot . Settings valid = Software•
Trip, Alarm
╚═▷ De󰊟nition
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.
9.13.2
I2/I1>: Settings
I2/I1> . Function [Protection Para / I2/I1>]
Active Inactive, Active
╚═▷ Mode
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
85WIC1WIC1-2.0-EN-REF
9 Protection Parameter
9.13 I2/I1> – Unbalanced Load Protection

Seg WI Series Specifications

General

Brand	Seg
Model	WI Series
Category	Relays
Language	English