Tools for everyday work
Eight calculators we use ourselves. No registration, no data sharing – your entries never leave your browser. Each one states the formula and the assumptions behind it, so you can verify the result rather than trust it.
Runs in your browser. No entries are transmitted or stored.
- 01Cable cross-sectionThree-phase: A = (√3 · L · I · cos φ) / (κ · Δu)
- 02Voltage dropThree-phase: Δu = (√3 · L · I · cos φ) / (κ · A)
- 03Motor currentThree-phase: I = (P / η) / (√3 · U · cos φ)
- 04Enclosure coolingHeat output: Q = k · A · ΔT with k = 5.5 W/(m²·K) for painted sheet steel
- 05Reactive power compensationQc = P · (tan φ₁ − tan φ₂)
- 06TorqueM = 9550 · P / n (P in kW, n in min⁻¹, M in Nm)
- 07Short-circuit currentIᵣ = Sᵣ / (√3 · Uᵣ)
- 08Reference designation=Function +Location −Component :Terminal
Calculating is the easy part.
A formula gives you a number. Designing a plant also demands installation method, grouping, discrimination, the standards in force and a look at the installed base. That is what we take on.
Contact
Tell us what it is about.
A phone call or three lines is enough. From the very start you talk to the people who will later work on your project – not to a distribution list.
Direct
- Phone+49 (0) 5247 4070-66
- Emailinfo@fisekon.com
- AvailabilityMon – Fri, 8:00 – 17:00 CET
Locations
Head officeStellmacherstr. 7
33428 Marienfeld (Harsewinkel)Gütersloh officeWagenfeldstr. 2
33332 Gütersloh
33428 Marienfeld (Harsewinkel)Gütersloh officeWagenfeldstr. 2
33332 Gütersloh
Or write to us
We usually reply within one working day.