TRIPHASE AUTOTRANSFORMERS
TO START ENGINES
ATT 3 AM
SPECIFICATIONS:
-
-rules engine CEI 96-1 IEC 989
CEI 14-8 IEC 726
-
-triphase autotransformers to start asynchronous
triphase cage
engines with starting current, at
the standard voltage,
equal to 6 times the nominal.
Calculated for 5 starts per hour, including 2 consecutive
period of 15 seconds each.
-
-normal voltage reduced to 70%-75%-80%
-
-isolation class B
-
-frequence 50/60 Hz
-
-open run. Degree of protection IP00
-
-room temperature max 40° C
-
-impregnated resin and tropicalised
-
-connection with star center open
-
-on request: thermostat inserted into the central
Ordering data:
Engine power (HP or KW)
Rated motor voltage -
Percentage reduced voltage
CODE |
ENGINE POWER |
A |
B |
C |
D |
E |
WEIGHT Kg |
HP |
KW |
AT3AM 237 |
5 |
3,7 |
180 |
180 |
120 |
150 |
70 |
8,7 |
AT3AM 275 |
10 |
7,5 |
180 |
180 |
140 |
150 |
90 |
12,5 |
AT3AM 311 |
15 |
11 |
230 |
240 |
150 |
200 |
70 |
14,6 |
AT3AM 315 |
20 |
15 |
230 |
240 |
160 |
200 |
80 |
20,5 |
AT3AM 318 |
25 |
18,5 |
230 |
240 |
170 |
200 |
90 |
25 |
AT3AM 322 |
30 |
22 |
280 |
300 |
180 |
250 |
90 |
31 |
AT3AM 330 |
40 |
30 |
280 |
300 |
190 |
250 |
100 |
35 |
AT3AM 337 |
50 |
37 |
280 |
300 |
200 |
250 |
110 |
40 |
AT3AM 345 |
60 |
45 |
280 |
300 |
210 |
250 |
120 |
46 |
AT3AM 355 |
75 |
55 |
350 |
360 |
210 |
325 |
100 |
55 |
AT3AM 375 |
100 |
75 |
350 |
360 |
220 |
325 |
110 |
63 |
AT3AM 390 |
125 |
90 |
420 |
420 |
240 |
375 |
140 |
91 |
AT3AM 411 |
150 |
110 |
420 |
420 |
250 |
375 |
150 |
100 |
AT3AM 413 |
180 |
133 |
420 |
420 |
260 |
375 |
160 |
109 |
AT3AM 415 |
200 |
148 |
460 |
480 |
280 |
455 |
150 |
130 |
AT3AM 418 |
250 |
184 |
460 |
480 |
300 |
455 |
170 |
155 |
AT3AM 422 |
300 |
220 |
460 |
480 |
320 |
455 |
190 |
190 |
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