CONTROLLER FOR AIR CONDITIONER

PROBLEM TO BE SOLVED: To use an inexpensive constitution and implement a protection during a phase interruption in a three-phase four-wire AC power supply. SOLUTION: In the three-phase four-wire AC power supply, a control means 2 is connected to a neutral point power supply line 9n and a R-phase pow...

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Bibliographische Detailangaben
1. Verfasser:	MORISHIGE ARIKICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING 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 BLASTING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION HEATING LIGHTING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING PHYSICS RANGES TESTING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To use an inexpensive constitution and implement a protection during a phase interruption in a three-phase four-wire AC power supply. SOLUTION: In the three-phase four-wire AC power supply, a control means 2 is connected to a neutral point power supply line 9n and a R-phase power supply line 9r, a current detecting means 3 is connected to a S-phase power supply line 9s, and an excitation coil of a second three-phase power supply opening/closing means 11 is connected to a T-phase power supply line 9t and the neutral point power supply line 9n through a first three-phase power supply opening/closing means 10. An opening/closing section in the second three-phase power supply opening/closing means is opened and protected even if any three-phase four-wire power supply lines have the phase interruption. COPYRIGHT: (C)2006,JPO&NCIPI