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Wind Diversion Load: Resistance and Element Counts

Calculate resistive load power at actual voltage, then find whole parallel-element counts meeting source absorption, controller and thermal limits.

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Inputs that matter
Element rating voltage (V), Element power at rating voltage (W), Actual operating voltage (V), Allowed continuous heat at actual conditions (W), and 11 more
Output to expect
Resistive diversion load at operating voltage, Parallel diversion elements across regulation range
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Resistive diversion load at operating voltage

Derive an element’s constant resistance from its rated voltage and power, then calculate current and heat at the actual operating voltage. Compare actual thermal and voltage limits explicitly.

R = rated V²/rated W; operating current = V/R; operating power = V²/R. A lower-voltage supply does not deliver the element’s nameplate wattage.

Parallel diversion elements across regulation range

Find a finite whole-element count that absorbs the entered maximum source current and documented margin at minimum regulation voltage, while respecting controller current at maximum voltage and each element’s thermal/voltage limits.

For N identical parallel elements: I = N V/R and P = N V²/R. Nmin = ceil(required source current × R/Vmin); Nmax = floor(controller limit × R/Vmax), further limited by the entered hardware count.

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 500 W at entered operating voltage

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 3 parallel elements: minimum feasible count on entered limits

FAQ

Derive an element’s constant resistance from its rated voltage and power, then calculate current and heat at the actual operating voltage. Compare actual thermal and voltage limits explicitly. Find a finite whole-element count that absorbs the entered maximum source current and documented margin at minimum regulation voltage, while respecting controller current at maximum voltage and each element’s thermal/voltage limits.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

About Wind Diversion Load: Resistance and Element Counts

Derive an element’s constant resistance from its rated voltage and power, then calculate current and heat at the actual operating voltage. Compare actual thermal and voltage limits explicitly. Find a finite whole-element count that absorbs the entered maximum source current and documented margin at minimum regulation voltage, while respecting controller current at maximum voltage and each element’s thermal/voltage limits.