Wound capacitor comprising an excess-pressure safety device

Details Wound capacitor comprising an excess-pressure safety device Wound capacitor comprising an excess-pressure safety device

H - Electricity

01

G

334/29, 334/6

H01G 4/18 (2006.01) H01G 4/32 (2006.01) H01G 4/40 (2006.01)

Patent

CA 1060555

ABSTRACT: A wound capacitor comprising a cylindrical housing which includes an expansion space which is closed on the one side by a lid and which is bounded on the other side by a rigidly arranged centring disc which is provided with openings. Via the openings, the expansion space is in open communication with a space in which a capacitor roll, disposed on a cylin- drical core, is arranged. Connection wires are connected to the electrodes in the capacitor roll. These wires are anchored in the lid as well as in a centring member arranged in the centring disc. The centring member is locked against axial displacement by way of a shoulder which bears against the centring disc. In the case of an inadmissibly high gas pressure in the capacitor, the lid is displaced relative to the centring member and the connection wires are broken, the capacitor thus being rendered explosion-proof.

258459

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