Settings - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 12.12.2023

REX610 Technical Manual
Table 1. T1PTTR Group settings (Basic)

Parameter

Values (Range)

Unit

Step

Default

Description

Time constant

60...60000

s

1

2700

Time constant of the line in seconds.

Current reference

0.05...4.00

xIn

0.01

1.00

The load current leading to Temperature raise temperature

Temperature rise

0.0...200.0

°C

0.1

75.0

End temperature rise above ambient

Env temperature Set

-50...100

°C

1

40

Ambient temperature used when no external temperature measurement available

Alarm value

20.0...150.0

°C

0.1

80.0

Temperature level for start (alarm)

Maximum temperature

20.0...200.0

°C

0.1

90.0

Temperature level for operate

Reclose temperature

20.0...150.0

°C

0.1

70.0

Temperature for reset of block reclose after operate
Table 2. T1PTTR Group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Current multiplier 1...5 1 1 Current multiplier when function is used for parallel lines
Table 3. T1PTTR Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation

1=on

5=off

 1=on Operation Off / On

Table 4. T1PTTR Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Initial temperature -50.0...100.0 °C 0.1 0.0 Temperature raise above ambient temperature at startup