Advanced Energy THYRO-AX, Manual

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Thyro-AX 2A and Thyro-AX 3A (load with common star point without
neutral conductor)
NUMBER OF
PARALLEL
LOAD RESIS-
TANCES I
LOAD NOMINAL
/
I
TYPE CONTROLLER
*
U
LOAD NOMINAL
/
U
TYPE CONTROLLER
*
RESISTANCE
CHANGE IN
FAULT** RECOM-
MENDED
SETTINGS
FOR R_MAX
1 20% 40% unlimited R
Load
+50%
2 20% 40% +67% R
Load
+33%
3 40% 40% +33% R
Load
+18%
4 40% 40% +22% R
Load
+15%
Thyro-AX 2A and Thyro-AX 3A (load in delta connection)
NUMBER OF
PARALLEL
LOAD RESIS-
TANCES I
LOAD NOMINAL
/
I
TYPE CONTROLLER
*
U
LOAD NOMINAL
/
U
TYPE CONTROLLER
*
RESISTANCE
CHANGE IN
FAULT** RECOM-
MENDED
SETTINGS
FOR R_MAX
1 20% 40% +73% R
Load
+36%
2 20% 40% +31% R
Load
+16%
3 60% 40% +20% R
Load
+15%
Thyro-AX 3A (load with common star point with neutral conductor /
open delta connection)
NUMBER OF
PARALLEL
LOAD RESIS-
TANCES I
LOAD NOMINAL
/
I
TYPE CONTROLLER
*
U
LOAD NOMINAL
/
U
TYPE CONTROLLER
*
RESISTANCE
CHANGE IN
FAULT** RECOM-
MENDED
SETTINGS
FOR R_MAX
1 20% 40% unlimited R
Load
+50%
2 20% 40% +100% R
Load
+50%
3 40% 40% +50% R
Load
+25%
4 40% 40% +33% R
Load
+18%
5 40% 40% +25% R
Load
+15%
* min value for 100% setpoint
** partial load fault
TAB. 10 LOAD RESISTANCE
NOTE
- In operating mode VAR, the monitoring is blocked for large control
angles (for load with neutral conductor alpha > 140°, for load wit-
hout neutral conductor alpha > 117°).
- In the operating mode TAKT the monitoring is blocked for low
setting times (Ts) (by 2-phase devices Ts< 2 periods).