DE1954736B2 - Current limiting device - Google Patents
Current limiting deviceInfo
- Publication number
- DE1954736B2 DE1954736B2 DE19691954736 DE1954736A DE1954736B2 DE 1954736 B2 DE1954736 B2 DE 1954736B2 DE 19691954736 DE19691954736 DE 19691954736 DE 1954736 A DE1954736 A DE 1954736A DE 1954736 B2 DE1954736 B2 DE 1954736B2
- Authority
- DE
- Germany
- Prior art keywords
- current limiting
- members
- gap
- end portion
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H87/00—Protective devices in which a current flowing through a liquid or solid is interrupted by the evaporation of the liquid or by the melting and evaporation of the solid when the current becomes excessive, the circuit continuity being reestablished on cooling
Landscapes
- Fuses (AREA)
Abstract
Permanent fuse capable of repeatedly performing the current limiting operation, comprising: (a) a body of current limiting material which responds to an access flow of current by evaporating so as to perform a current limiting operation, and which is restored to its original state after completion of the operation; (b) a pressure proof enclosure surrounding (a) and incorporating a pair of concave and convex metallic members in the form of hollow cylinders, one of which has an end portion of reduced diameter loosely inserted into the adjacent end portion of the other cylindrical member to form a gap in between; and (c) a solid material filling the gap and the interior of the cylindrical members except for (a) to unite the members into a unitary structure, the solid consisting of electrically insulating and resisting material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691954736 DE1954736B2 (en) | 1969-10-30 | 1969-10-30 | Current limiting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691954736 DE1954736B2 (en) | 1969-10-30 | 1969-10-30 | Current limiting device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1954736A1 DE1954736A1 (en) | 1971-05-06 |
DE1954736B2 true DE1954736B2 (en) | 1971-10-21 |
Family
ID=5749735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691954736 Pending DE1954736B2 (en) | 1969-10-30 | 1969-10-30 | Current limiting device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1954736B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI228339B (en) * | 2002-11-06 | 2005-02-21 | Mitsubishi Electric Corp | Metal-enclosed switchgear |
-
1969
- 1969-10-30 DE DE19691954736 patent/DE1954736B2/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1954736A1 (en) | 1971-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 |