| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: proposed contact device has fixed cylindrical contact with central bore. Movable contact has cylindrical spring loaded segments. Inner effective surfaces of segments form central bore for fixed contact. Movable-contact segments are installed on cylindrical section of current duct for angular displacement of movable contact relative to current duct. Segment follow limiters are made in the form of rings; they are installed within inner part of movable contact in depressions and in segments. Aligning member is installed inside movable contact and secured to current duct 8 coaxially with the latter. Part of aligning member protruding beyond butt-ends of segments is made in the form of cone and may be manufactured from insulating material. In addition, aligning member mounts movable-contact angular displacement limiter in the form of cylindrical projection, Segment follower limiter ring may be made in the form of truncated cone with its larger base facing fixed contact. ^ EFFECT: preventing damage to contact members during their closing. ^ 4 cl, 1 dwg |
