Method and device for mounting a winding

A method of mounting a winding on a stator for a generator comprising the steps:

• a) using cable for the winding, the winding being wound with a number of cables of predetermined lengths for the intended winding of the stator,
• b) placing the center of the cable of about half the predetermined length at a location in a slot of the stator representing the middle of the intended coil arc,
• c) starting from the center of the coil arc, winding the first half cable length onto the stator to form a first coil arc half and part of a complete stator winding turn,
• d) winding the remaining half cable length onto the stator starting from the said center of the coil arc and in the opposite direction relative to the winding of the first half cable length so as to form the other half of the coil arc on the stator and another part of the complete stator winding where the cable is delivered wound onto a delivery drum,
• unwinding the cable from the delivery drum a predetermined length, and coiling the cable onto a drum means,
• marking the center of the cable at half the predetermined length, and cutting the cable at the predetermined length,
• carrying out step a) and b), the first half cable length up to the center being uncoiled from the drum means using intermediate storage means, and
• carrying out step c), the remaining half cable length being uncoiled from the drum means using said intermediate storage means.

A method of mounting a winding on a stator for a generator comprising the steps:

• a) using cable for the winding, the winding being wound with a number of cables of predetermined lengths for the intended winding of the stator,
• b) placing the center of the cable of about half the predetermined length at a location in a slot of the stator representing the middle of the intended coil arc,
• c) starting from the center of the coil arc, winding the first half cable length onto the stator to form a first coil arc half and part of a complete stator winding turn,
• d) winding the remaining half cable length onto the stator starting from the said center of the coil arc and in the opposite direction relative to the winding of the first half cable length so as to form the other half of the coil arc on the stator and another part of the complete stator winding
• A) mounting a cable guide on one free end of the cable,
• B) inserting the one free end of the cable in a first cable feeder located at the upper side of the stator frame and at the stator slot representing the middle of the intended coil arc,
• C) running the one free end of the cable with the cable guide through the stator slot, which extends between the first cable feeder and the under side of the stator frame,
• D) inserting the one free end of the cable with the cable guide in a second cable feeder disposed at the under side of the stator frame and running it through a following stator slot according to a predetermined winding diagram,
• E) thereafter running the free end of the cable with the cable guide alternatively by means of the first cable feeder and the second cable feeder through the stator slots according to the winding diagram until the cable center marking is just opposite the stator slot representing the middle of the intended coil arc, and
• F) thereafter repeating steps A)-E) for the other free end of the cable.

A method of mounting a winding on a stator for a generator comprising the steps:

• a) using cable for the winding, the winding being wound with a number of cables of predetermined lengths for the intended winding of the stator,
• b) placing the center of the cable of about half the predetermined length at a location in a slot of the stator representing the middle of the intended coil arc,
• c) starting from the center of the coil arc, winding the first half cable length onto the stator to form a first coil arc half and part of a complete stator winding turn,
• d) winding the remaining half cable length onto the stator starting from the said center of the coil arc and in the opposite direction relative to the winding of the first half cable length so as to form the other half of the coil arc on the stator and another part of the complete stator winding
• A1) mounting a pull wire to one free end of the cable,
• B1) inserting the pullwire at one side of the stator frame in the stator slot representing the middle of the intended coil arc, so as to emerge from the stator slot at the other, opposite side of the stator frame,
• C1) inserting the pull wire in a first cable feeder provided at the other, opposite side of the stator frame,
• D1) thereafter pulling the pull wire with the cable through the stator slot and inserting it in a following stator slot according to the predetermined winding diagram,
• D2) when a sufficient length of the pull wire is fed from the following stator slot at one side of the stator frame, inserting it in a second cable feeder provided at the said one side of the stator frame and pulling the cable up therethrough to be taken over by the first cable feeder, which is directed towards the following stator slot according to the winding diagram,
• E1) running the cable feeders alternately for pulling the cable into the stator slots according to the winding diagram until the center marking of the cable is just opposite the stator slot representing the middle of the intended coil arc, and
• F1) thereafter repeating steps A1)-E1) for the other half of the cable.

A method of mounting a winding on a stator for a generator comprising the steps:

• a) using cable for the winding, the winding being wound with a number of cables of predetermined lengths for the intended winding of the stator,
• b) placing the center of the cable of about half the predetermined length at a location in a slot of the stator representing the middle of the intended coil arc,
• c) starting from the center of the coil arc, winding the first half cable length onto the stator to form a first coil arc half and part of a complete stator winding turn, and
• d) winding the remaining half cable length onto the stator starting from the said center of the coil arc and in the opposite direction relative to the winding of the first half cable length so as to form the other half of the coil arc on the stator and another part of the complete stator winding wherein
• the high-voltage cable comprises a core with a plurality of conductive wires, an inner semiconducting layer surrounding the core, an insulating layer surrounding the inner semiconductive layer and an outer semiconductive layer surrounding the insulating layer.

A method of mounting a winding on a stator for a generator comprising the steps:

• a) using cable for the winding, the winding being wound with a number of cables of predetermined lengths for the intended winding of the stator,
• b) placing the center of the cable of about half the predetermined length at a location in a slot of the stator representing the middle of the intended coil arc,
• c) starting from the center of the coil arc, winding the first half cable length onto the stator to form a first coil arc half and part of a complete stator winding turn, and
• d) winding the remaining half cable length onto the stator starting from the said center of the coil arc and in the opposite direction relative to the winding of the first half cable length so as to form the other half of the coil arc on the stator and another part of the complete stator winding wherein
• the high-voltage cable has a diameter of about 20 mm to about 200 mm and a conductor area of about 80 mm2 to about 3000 mm2.