VOLTAGE DROP DETECTOR

PROBLEM TO BE SOLVED: To provide a voltage drop detector capable of detecting the voltage drop on the power supply side, without affecting the voltage drop due to transformer impedance. SOLUTION: A transformer for instrument 14 is provided on the primary side of a transformer installed on a power sy...

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE JUNICHI, MAEKAWA HIDEHIRO, TOKI MASARU
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a voltage drop detector capable of detecting the voltage drop on the power supply side, without affecting the voltage drop due to transformer impedance. SOLUTION: A transformer for instrument 14 is provided on the primary side of a transformer installed on a power system, and the voltage detected by the transformer 14 is introduced into a control section of an inverter 6 so as to perform power compensation corresponding to the primary voltage. The voltage and current detected by a transformer for instrument 5 and an instrument current transformer provided on the secondary side of the transformer are introduced into an impedance drop compensating section to compute the power supply voltage, and the computed value is introduced into control section of the inverter and compensation is carried out. COPYRIGHT: (C)2006,JPO&NCIPI