| 摘要 |
<p>PURPOSE:To adjust the power factor of an AC generator which is operated in parallel with a system by applying the inter-phase voltage of a generator to the Toulon circuit consisting of a capacitor and a resistor and combining this voltage vector and the phase current vector. CONSTITUTION:The 2-to 3-phase voltage of an AC generator is applied to the Toulon circuit consisting of a generator 33, power factor setting resistor 34, and compensating resistor 35 and the two voltage vectors of the same phase and voltage are generated in accordance with the output. Also, phase current is removed from an auxiliary current transformer 7 through a current transformer 6 and power factor deviation signals are obtained by combining these two vectors. By connecting the generator with an automatic voltage regulator, field current decreases at lag power factor and increases at lead power factor. As a result, an arbitrary operation power factor can be set by adjusting the resistor 34 and an economical and compact automatic power factor regulator be obtained without a phase shift transformer.</p> |
