HV & LV Switchgear Calculator
This is a free, zero-dependency web tool for high-voltage and low-voltage switchgear component engineering:
busbar ampacity and temperature correction, copper busbar weight and cost, cable/conductor selection with voltage drop,
thermal and dynamic short-circuit verification, insulation coordination and clearance lookup, transformer short-circuit
reactance and protection fuse selection, motor starter element configuration, DC panel battery capacity, drawer-module
selection — plus 22 transcribed reference tables. Interface available in English, Spanish, German, French, Italian,
Portuguese, Chinese, Korean and Japanese.
JavaScript is required to run the calculators. Please enable JavaScript and reload the page.
Contact: engineertool@outlook.com ·
www.engtool.net