3NE1 SITOR double protection fuses allow the cable and semiconductor protection to be implemented with just one fuse. This results in significant cost savings and shorter assembly times.
An overview of the fuses required for the armature and field circuits is provided in the following table.
|
Armature circuit |
Field circuit |
||||
|---|---|---|---|---|---|
|
< 900 A |
900A |
||||
|
Two-quadrant operation |
Four-quadrant operation |
Two-quadrant operation |
Four-quadrant operation |
||
|
Phase fuse |
Required |
Required |
– |
– |
Required |
|
Arm fuse |
– |
– |
Integrated in the unit |
Integrated in the unit |
– |
|
DC fuse |
– |
Required |
– |
– |
– |