Title:
THREE-PHASE ALTERNATING-CURRENT POWER SUPPLY APPARATUS OF ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JPH0630525
Kind Code:
A
Abstract:
PURPOSE: To obtain a high surge withstand voltage, without requiring additional required space. CONSTITUTION: Three-phase AC-phase conductors L1, L2, and L3 are connected to a common connection line 8 via lightening arresters 4-6, respectively, and the connection line 8 is connected to a neutral line N via a voltage-limiting element 9. In a series circuit of one of the lightening arresters 4-6 and one of the remaining lightening arresters or the voltage-limiting element 9, the lightening arresters 4-6 and the voltage-limiting element 9 are set, so that a surge current does not exceed a specific limit value in the case of a specific surge voltage and a specific minimum value of the internal resistance of a voltage source.
Inventors:
FURITSUTSU POORU
DEIITAA HARU
DEIITAA HARU
Application Number:
JP5135393A
Publication Date:
February 04, 1994
Filing Date:
February 17, 1993
Export Citation:
Assignee:
SIEMENS AG
International Classes:
H02H3/20; H02H9/04; H02H9/08; (IPC1-7): H02H9/08; H02H9/04
Attorney, Agent or Firm:
Tomimura Kiyoshi
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