Title:
STATIC INDUCTION ELECTRIC DEVICE
Document Type and Number:
Japanese Patent JP2021090032
Kind Code:
A
Abstract:
To change the impedance without changing a voltage of a grid even when a power source of renewable energy is connected to a grid unexpectedly than when the grid is planned.SOLUTION: A static induction electric device according to the present invention that includes an iron core, a low-pressure winding arranged on the outer circumference of the iron core, a high-pressure windings arranged on the outer circumference of the low-pressure winding, and a tap winding on the outer circumference of the high pressure winding, and to which the respective windings are electrically connected, and a reactor is provided on the neutral point side of the high-pressure winding, and the connection between the reactor and the high-pressure winding is switched by a switch to increase or decrease the inductance component of the reactor to change the impedance.SELECTED DRAWING: Figure 5
Inventors:
UNNO YUKA
KOSEKI KENTARO
KOSEKI KENTARO
Application Number:
JP2019221068A
Publication Date:
June 10, 2021
Filing Date:
December 06, 2019
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H01F30/12; H01F29/02
Attorney, Agent or Firm:
Polaire Patent Business Corporation