A New Slot Type Axial Magnetic Field Contact with Low Resistance
Release Time:2025-04-30
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- Date:
- 2025-04-30
- Title of Paper:
- A New Slot Type Axial Magnetic Field Contact with Low Resistance
- Journal:
- ISDEIV 2006
- Summary:
- This paper introduces a new slot type axial magnetic field (AMF) contact. It has lower resistance compared with its counterpart conventional one by introducing a contactbridgethat substitutes for stainless steel support in conventional contact. There is a gap between the contact bridge and contact plate. In close position, the contactbridge is pressed on contactplate by contact force and coil deformation. So current goes throughthecontact bridgeto reachcontactplate directly.Inaninterruptionoperation,thegaprestoreswithcontact force disappearing, whichpushes currentpassingthrough
coils ofthe slot typeAMFcontact. So sameAMFcan be generated as a conventional one. Asa result, short circuit
current interruption tests showed that the interrupting capacity ofthe vacuuminterrupterwith newcontactswas notlessthanthatwithconventional contacts.Resistance of vacuum interrupterwith conventional contactis 10-12pQ
at contact force2000N.It decreasedto 7pQwith the new contact.
- Co-author:
- Zhiyuan Liu, Zheng Wang, Jimei Wang
- Volume:
- vol.x no.x
- Page Number:
- 293-296
- Translation or Not:
- No
- Date of Publication:
- 2006-10-13