Читать книгу Introduction to Energy, Renewable Energy and Electrical Engineering - Ewald F. Fuchs - Страница 31

ocopen circuitOPoperationalORCorganic Rankine cycleoutoutputωangular frequency or angular velocityωangular frequency or angular velocity at resonance, undamped natural angular frequency, center frequencyωmmechanical angular velocityreference/nominal/rated (*) value of mechanical (m) angular velocityωHIupper (HI) break or cutoff frequency, half‐power angular frequencyωLOlower (LO) break or cutoff frequencyωLO, ωHIhalf‐power frequenciesΩunit for ohmsωLloadreactance due to load inductanceωLload1reactance due to load 1 inductanceωLload2reactance due to load 2 inductanceωMmutual reactance due to coupling of two windingsωL1self‐reactance of winding 1ωL2self‐reactance of winding 2reactance due to load impedance referred to primary side per phase reactance of delta‐connected first loadper phase reactance of delta‐connected second loadper phase reactance of Y‐connected first loadper phase reactance of Y‐connected second loadωLlsleakage reactance of secondary windingωLls ′leakage reactance of secondary winding referred to primary side of transformerper phase reactance of delta‐connected loadωLlpleakage reactance of primary windingωLmreactance of magnetizing/cross‐branch of transformerωLlineper phase reactance of distribution/transmission lineωm(t)time‐dependent mechanical angular velocity