JPS61192429U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1a is a front view showing an embodiment of this invention;
Figure 1b is a partially cutaway plan view of Figure 1a, Figure 1c
is a side sectional view of the above embodiment, FIG. 2a is a front view showing a conventional three-phase transformer, FIG. 2b is a partially cutaway plan view of FIG. 2a, and FIG. 2c is a diagram of the above embodiment. side sectional view of
FIGS. 3a and 3b are distribution diagrams of the magnetic flux density passing through the magnetic shielding member. In the figure, 1a to 1c... iron core legs, 1d, 1e
... Yoke portion, 2a to 2c... Winding wire, 4A, 4B... Magnetic shielding member, 4C... Magnetic material in the area with high passing magnetic flux density. Note that the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In an electromagnetic induction device equipped with a magnetic shielding member extending in the parallel direction of each phase winding and disposed on or near the end face of these windings to provide collective magnetic shielding for each phase, the magnetic flux density passing through the magnetic shielding member is An electromagnetic induction device characterized in that a high region part is made of a magnetic material with a higher saturation magnetic flux density than other parts.