Trane R Series Diagnostic Troubleshooting Repair page 29

RLC-SVD03A-EN
Current Transformer
Table 6 Trip Times Vs. % Current
MOTOR CURRENT
(% RATED RLA)
127 .7 or below
132.0
132.1
140.0 (must trip pt.)
150.0
160.0
170.0
180.0
190.0
200.0
210.0
220.0
230.0
240.0
250.0
260.0
270.0
280.0
290.0
300.0
300.1
310.2 or above
Table 7 Current Transformers Ratings and Resistance
RATING
*
EXT USABLE
01 100A
02 150A
03 200A
04 275A
05 400A
09 50A
10 75A
*The current transformer base part number is X13580253. The
numbers in this column are suffixes of the base part number.
TRIP TIME (SEC)
MINIMUM NOMINAL
No trip No Trip
27 .2 No Trip
27 .2 30.08
22.8 25.28
18.8 20.48
16.0 17 .28
14.0 15.28
12.4 13.28
11.2 12.08
10.4 10.88
9.6 10.08
8.8 9.28
8.0 8.48
7 .6 8.08
7 .2 7 .68
6.8 6.88
6.4 6.88
6.0 6.48
5.6 6.08
4.0 5.68
4.0 4.08
4.0 4.08
RESISTANCE
RANGE OHMS + 10%
23.5
66.67 -100A
35.0
100 - 150A
134 - 200A 46.0
184 -275A 67 .0
267 - 400A 68.0
33.37 - 50A 11.5
50 - 75A 17 .0
MAXIMUM
No Trip
No Trip
No Trip
28.09
22.89
19.29
16.89
14.89
13.29
12.09
10.89
10.09
9.69
8.89
8.49
7 .69
7 .29
6.89
6.89
6.49
6.49
4.49
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