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MchapterMemorandumPresentation:• Fundamental laws which reign in the electrical andmechanical universe.

• Tables of the main quantities and constants.• Measurement units and symbols, and conversiontables with common units.

• Neutral regimes.

SummaryM. Memorandum

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M.1 Quantities and units of measurement 292

M.2 Average full-load currents of asynchronous squirrel cage motors 293

M.3 Electrical formulae 294

M.4 Calculation of starting resistances 296

M.5 Mechanical formulae 297

M.6 Fundamental formulae 298

M.7 Neutral connections 299

M.8 Driving machines 300

M.9 Conversion tables for standard units 302

M.1 Quantities and units of measurementM. Memorandum

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M.1 Quantities and units of measurement

M.2 Average full-load currents of asynchronous squirrel cage motors

M. Memorandum

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M.2 Average full-load currents of asynchronous squirrel cage motors

M.3 Electrical formulaeM. Memorandum

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M.3 Electrical formulae

M.3 Electrical formulaeM. Memorandum

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Ohm’s Law

Circuits comprising resistance and reactanceDifferent types of resistive circuits

SYMBOLSU = Voltage in voltsI = Current in amperesR = Resistance in ohmsP = Power in watts

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M.4 Calculation of starting resistancesM. Memorandum

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M.4 Calculation of starting resistances

M.5 Mechanical formulaeM. Memorandum

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M.5 Mechanical formulae

M.6 Fundamental formulaeM. Memorandum

298

M.6 Fundamental formulae

M.7 Neutral connectionsM. Memorandum

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M.7 Neutral connections

M.8 Driving machinesM. Memorandum

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M.8 Driving machines

M.8 Driving machinesM. Memorandum

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M.9 Conversion tables for standard unitsM. Memorandum

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M.9 Conversion tables for standard units

M.9 Conversion tables for standard unitsM. Memorandum

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