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Featured Article

Welcome to our Wiki of electrical contacts

The basis of this Wiki is the 2012 issue of the "DODUCO Data Book of Electrical Contacts" which is also available in printed form.
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Featured Article

High Electrical Loads

High Electrical Loads

At high electric loads that usually occur in power engineering devices, the switching phenomena are mostly related to arc formation. For most applications, the management of the switching arc is the key problem. Depending on the device, type different requirements are dominant which influence the selection of the contact material. Similar to those in communications engineering, issues related to the switching characteristics and current path have to be considered.

  • Make operation
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Featured Files

Maximum movable bridge temperature rise for different contact materials.jpg
Maximum movable bridge temperature rise for different contact materials in a 132 kW contactor after high load (AC-4) switching

1 Ag/CdO 88/12 sintered and extruded 2 Ag/SnO27.5In2O32.5 internally oxidized 3 Ag/SnO2 88/12 sintered and extruded

4 Ag/SnO2...
Pages: Testing Procedures for Power Engineering,
Prüfverfahren in der Energietechnik

by Doduco Redaktion


Strain hardening of AgNi9010 by cold working.jpg
Strain hardening of Ag/Ni 90/10 by cold working
Pages: Silver Based Materials,
Werkstoffe auf Silber-Basis

by Doduco Redaktion