Slot sealing arrangement

Details Slot sealing arrangement Slot sealing arrangement

1998-09-18

2000-09-19

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 59, 310 60A, H02K 348, H02K 900

Patent

active

061217085

ABSTRACT:
In the case of an electrical machine which has in its laminated stator core (10) slots which comprise winding slots (1) and preliminary slots (2), the winding bars (3, 4) which are embedded in the winding slot (1) are fixed by means of a slot sealing arrangement (8), which slot sealing arrangement (8) also has a double function of sealing the preliminary slot (2) from an air gap (12) of the machine. The slot sealing arrangement (8), which is formed essentially from an upper wedge (5), a lower wedge (6) and a wedge attachment (7), forms, together with the slot walls (13a, 13b) which bound the preliminary slot (2), flow channels (2a) for a gaseous cooling medium for cooling the teeth (15) of the laminated stator core (10).

REFERENCES:
patent: 3588557 (1971-06-01), Kilgore et al.
patent: 4028569 (1977-06-01), Towne
"Neue Hochspannungs-Kafiglaufermotoren mittlerer Leistung", Erlacher, et al., Brown Boveri Mitteilungen, Sep. 1967, pp. 523-526.

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