Guida Tecnica Technical Guide Ratings Book Potenze

CONNECTION DIAGRAMS
The following are the most common connection arrangements utilized with Mecc Alte generators.
Always verify that the connections of all the leads from the main stator are consistent with the nameplate
voltage required. Connection diagrams are supplied with every generator and should be used as the primary
source of information. Please consult the factory for any questions regarding these connections.
CONNECTIO DIAGRAM FOR 60Hz
50Hz
Series Star
Parallel Star
Series Delta
Parallel Delta
Zig-Zag
Single Phase
Parallel Zig-Zag
Single Phase
Double Delta
L-L 380 400 415 440 760 800 830 880
L-N 220 230 240 254 440 460 480 508
L-L 190 200 208 220 380 400 415 440
L-N 110 115 120 127 219 231 240 254
L-L 220 230 240 254 440 460 480 508
L-N 110 115 120 127 220 230 240 254
L-L
Series 3, 28, 31, 32, 34, 38, 40 (1S, 2S, 1L, 2L) Series 40 (3S, 1,5L, VL), 43, 46
110
115
120
127 220 230 240 254
L-L 330 346 360 380 660 690 720 760
L-N 191 200 208 220 380 400 415 440
L-L 220 230 240 254 440 460 480 508
L-N 110 115 120 127 220 230 240 254
L-L 220 230 240 254 440 460 480 508
L-N 110 115 120 127 220 230 240 254
60Hz
Series Star
Parallel Star
Series Delta
Series 3, 28, 31, 32, 34, 38, 40 (1S, 2S, 1L, 2L)
Series 40 (3S, 1,5L, VL), 43, 46
L-L 415 440 460 480 830 880 920 960
L-N 240 254 266 277 440 460 480 554
L-L 208 220 230 240 415 440 460 480
L-N 120 127 133 139 240 254 266 277
L-L 240 254 266 277 440 460 480 554
L-N 120 127 133 139 220 230 240 277
Parallel Delta L-L 120 127 133 139 220 230 240 277
Zig-Zag
Single Phase
Parallel Zig-Zag
Single Phase
Double Delta
L-L 359 380 400 415 720 760 800 830
L-N 207 220 230 240 415 440 460 480
L-L 240 254 266 277 440 460 480 554
L-N 120 127 133 139 220 230 240 277
L-L 240 254 266 277 440 460 480 554
L-N 120 127 133 139 220 230 240 277
Technical Guide: Ratings Book 27