Title:
INDEPENDENT OPERATION DETECTING METHOD FOR ROTATING-MACHINE SYSTEM DISTRIBUTED POWER SOURCE
Document Type and Number:
Japanese Patent JPH08331763
Kind Code:
A
Abstract:
PURPOSE: To provide an independent operation detecting method for rotating- machine system distributed power sources excellent in power quality and power supply reliability, and advantageous in point of maintenance too.
CONSTITUTION: In a power system composed by connecting a commercial power source l and a rotating-machine system distributed power source 2 through a linkage circuit-breaker 3 and a power receiving circuit-breaker 4, an independent operation condition of a power source is detected by a reactive or effective power controlling function 10 and a frequency relay 90 for detecting a frequency or its change, on condition that the frequency or its variation exceeds a constant quantity.
Inventors:
HIRAYAMA YOSHIYUKI (JP)
KURODA NOBUSUKE (JP)
KAI TAKAAKI (JP)
FUJIMOTO TOSHIRO (JP)
SASAKI HARUO (JP)
KURODA NOBUSUKE (JP)
KAI TAKAAKI (JP)
FUJIMOTO TOSHIRO (JP)
SASAKI HARUO (JP)
Application Number:
JP13300095A
Publication Date:
December 13, 1996
Filing Date:
May 31, 1995
Export Citation:
Assignee:
TOKYO ELECTRIC POWER CO (JP)
MEIDENSHA ELECTRIC MFG CO LTD (JP)
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
G01R31/34; H02J3/38; (IPC1-7): H02J3/38; G01R31/34
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)