Patent · US Expired

A heat protection device for overvoltage arrester magazines

US4642723A · kind A · utility

17Cited by

2References

6Claims

0Family size

Assignee

Krone Corporation · DE

Inventors

Peter Achtnig · Berlin, DE
Gunter Hegner · Berlin, DE

Key dates

Filing date	Jun 11, 1984
Grant date	Feb 10, 1987
Priority date	—
Expiry date	Jun 11, 2004

Classification

Technology area (CPC H)Electricity
CPC primaryH01T1/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A heat protection device for overvoltage terminal block arrester magazines having with two-way arresters or with button arresters. According to the present invention, an S-shaped clip spring or an L-shaped clip spring is inserted in a button arrester of the 6.times.6-type or the 6.times.8-type. The clip provides one leg of the protection device having a solder preform and a switch contact to complete the circuit. In case of an overvoltage, the arc developed in the arrester causes the solder preform to melt off during an extended application of heat arising from the arrester, activating the switch contact and short-circuiting the leg of the arrester.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.