FORM 160.54-M1(503)
67
YORK INTERNATIONAL
FIG. 38 – CM-2 CURRENT MODULE – INTERFACE, CURRENT TRANSFORMERS & VARIABLE RESISTORS
LD04082
LD04081
NOTES:
A. Requires passing motor lead through current transformer (CT)
once before connecting to power supply.
B. Requires passing motor lead through CT twice before con nect ing
to power supply.
C. Requires passing motor lead through CT three times before con-
necting to power supply.
D. Calculates resistance of “RES” to achieve 1.0VDC at FLA.
MOTOR CT
VOLTAGE
FLA
RATIO
RES
D
(OHMS)
65-111
A
200:1
208-600
112-224
A
350:1 R = 1.282 (CT RATIO)
225-829
A
700:1 FLA
830-1790
A
1400:1
11-18
C
200:1
R = 0.247 (CT RATIO)
FLA
19-37
B
200:1
R = 0.370 (CT RATIO)
2300-4160
FLA
38-123
A
200:1
R = 0.740 (CT RATIO)
124-264
A
350:1
FLA
265-518
A
700:1
10