Automatic phase modulator for low-voltage three-phase load unbalance

An automatic phase modulator for low-voltage three-phase load unbalance of the invention comprises a control circuit and a phase switching mechanism. The control circuit comprises a three-phase rectifier bridge composed of D1, D2 and D3, a voltage dividing circuit composed of R1, R2, R3, R4, R5 and...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	LIN LANZHONG
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An automatic phase modulator for low-voltage three-phase load unbalance of the invention comprises a control circuit and a phase switching mechanism. The control circuit comprises a three-phase rectifier bridge composed of D1, D2 and D3, a voltage dividing circuit composed of R1, R2, R3, R4, R5 and R6, a voltage comparator composed of IC1, IC2 and IC3, a set comparison voltage circuit composed of D5 M2 and R8, and a delay trigger circuit composed of IC3, M1 and R8. A phase switcher K is responsible for the selection of three-phase voltage. The automatic phase modulator for low-voltage three-phase load unbalance of the invention has the beneficial effect that the automatic phase modulator is simple in structure, low in cost and reliable in performance, and can achieve the technical means of automatic three-phase voltage adjustment, improve the quality of power supply of low-voltage transmission lines and ensure normal electricity use of users.