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264 Example circuit diagrams
Differences of 2×D8T 6-pulse, 5×D8T 6-pulse and 2×D7T 12-pulse
circuit diagrams
The main difference between 2×D8T 6-pulse, 2×D7T 12-pulse and 5×D8T 6-pulse
diagrams is that in 5×D8T, the main AC fuses [F1.x], main switch-disconnector [Q1.1] and
main contactor [Q2.1] are replaced with one component, main circuit breaker [Q1.1].
2×D7T 12-pulse has the main AC fuses [F1.x] for protecting modules, therefore there are
no AC fuses [F3.x] in module cabinet.
The 2×D8T 6-pulse modules have optional 400 V AC 3-phase DOL fans while the D7T
modules have optional 230 V AC 1-phase DOL fans. The diagrams of 5×D8T 6-pulse
describe modules with standard speed-controlled fans.
D8T 6-pulse modules can have the internal heating element in the module (option +C183)
while D7T 12-pulse modules do not have it.
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