Title:
CIRCUIT HAVING AC REACTOR
Document Type and Number:
Japanese Patent JPS588327
Kind Code:
A
Abstract:
PURPOSE:To make a titled device small and light entirely, by providing windings for AC reactor and current transformer on the same core and giving a function of the current transformer to the AC reactor. CONSTITUTION:A main winding 26 functioning as an AC reactor ACL is wound around a core 25 and a current detecting winding 31 for a current transformer is wound around the external circumference. The winding 26 is connected to an AC circuit. On the other hand, a load resistor RL is provided to the output of a winding 31 and a voltage across the resistor 31 is proportionated and integrated with a phase correcting means 32. The proportional and integration constants of the correcting means 32 are selected to match the electric characteristics of the required current transformer, allowing to obtain the result of operation having the same value as the current value from the current transformer provided independently. Thus, two types of devices can be constituted into one construction and the entire device can be made small in size and light in weight.
Inventors:
ISHIBASHI AKIRA
NANTOU KENJI
HATSUTORI MOTONOBU
YAMASHITA HITOSHI
NANTOU KENJI
HATSUTORI MOTONOBU
YAMASHITA HITOSHI
Application Number:
JP10549881A
Publication Date:
January 18, 1983
Filing Date:
July 08, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05F1/32; H01F38/28; (IPC1-7): G05F1/32
Attorney, Agent or Firm:
Masami Akimoto