Download installation instructions

APPENDIX A
TABLE A-1, Current Transformer
THlS TABLE GIVES THE NUMBER OF REQUIRED TURNS OF WIRE
THROUGH THE CENTER OF THE CURRENT TRANSFORMER FOR
VARIOUS SPINDLE MOTORS (BY HORSEPOWER & LINE VOLTAGE).
THE NUMBER OF TURNS HAVE BEEN CALCULATED TO GIVE THE
EQUIVALENT OF 5.0 HORSEPOWER LOAD WHEN SPINDLE LOAD
METER READS 100%.
SPINDLE
HORSEPOWER
2.0
2.0
2.0
3.0
3.0
3.0
5.0
5.0
5.0
7.5
7.5
7.5
10.0
10.0
10.0
15.0
15.0
15.0
20.0
20.0
20.0
LINE
VOLTAGE
230
380
460
230
380
460
230
380
460
230
380
460
230
380
460
230
380
460
230
380
460
NUMBER
OF TURNS
5
6
6
8
9
11
6
6
8
8
9
11
8
9
11
11
12
14
9
12
14
* Adding number of turns increase load meter sensitivity.
Reducing number of turns decreases load meter sensitivity.
NOTE: The zero adjustment should be checked whenever there is a
hange in the number of turns on the current transformer.
14