Title:
POWER SYSTEM
Document Type and Number:
Japanese Patent JP2019176663
Kind Code:
A
Abstract:
To prevent a current exceeding overcurrent capability from flowing in an existing internal wiring even if power supply equipment is connected to the internal wiring on an earth leakage breaker side from load equipment.SOLUTION: The power system includes: power supply equipment 120 connected to an earth leakage breaker 114b side from load equipment 16a, 16b in a voltage line for an internal wiring 114c and a neutral line; and an equipment ammeter 120b for measuring an equipment current flowing through the power supply equipment; a second reception point ammeter 130b for measuring a reception point current flowing through a voltage line connected to the power supply equipment at a reception point on a primary side of the earth leakage breaker; and a control unit 120c for limiting an output of the power supply equipment so that a sum of the equipment current and the reception point current is less than a rated breaking current of the earth leakage breaker or an overcurrent capacity of internal wiring.SELECTED DRAWING: Figure 3
Inventors:
YAMASHITA SATOSHI
TOMONO TAKUYA
WATANABE TAKAYUKI
TOMONO TAKUYA
WATANABE TAKAYUKI
Application Number:
JP2018064111A
Publication Date:
October 10, 2019
Filing Date:
March 29, 2018
Export Citation:
Assignee:
TOKYO GAS CO LTD
International Classes:
H02J3/46; H02B1/40; H02J3/14; H02J3/38; H02J13/00
Attorney, Agent or Firm:
Aomi patent office