Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1998-06-08
2000-08-08
Sherry, Michael J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 94, 363 55, H02H 300
Patent
active
061010731
ABSTRACT:
In a ground fault protecting apparatus of this invention, which protects a solar power generation apparatus from a ground fault, when a ground fault generated in a solar cell array is continuously detected for a period longer than a time T1, a gate block signal for stopping the operation of an inverter connected between the solar cell array and a load is output first. When the ground fault is continuously detected for a period longer than a time T2 (>T1), a disconnection instruction signal for disconnecting the inverter from the load is output to the disconnection unit. According to the ground fault protecting apparatus of this invention, a high ground fault detection sensitivity can be set. In addition, the solar power generation apparatus can be prevented from being unnecessarily stopped due to erroneous ground fault detection.
REFERENCES:
patent: 5214575 (1993-05-01), Sugishima et al.
patent: 5268832 (1993-12-01), Kandatsu
patent: 5669987 (1997-09-01), Takehara et al.
patent: 5714869 (1998-02-01), Temechika et al.
patent: 5751133 (1998-05-01), Sato et al.
patent: 5869956 (1999-02-01), Nagao et al.
Canon Kabushiki Kaisha
Sherry Michael J.
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