Current adjusting apparatus and current adjusting method

Details Current adjusting apparatus and current adjusting method Current adjusting apparatus and current adjusting method

2005-04-12

2005-04-12

Patel, Rajnikant B. (Department: 2838)

Electrical transmission or interconnection systems

Stabilized, anti-hunting or antioscillation systems

C307S064000, C307S085000

Reexamination Certificate

active

06879061

ABSTRACT:
A direction and a magnitude of a current flowing between an external alternating current power source (20) and a load (30) are detected by a current transformer (11). A voltage generated to a secondary winding (11B) of the current transformer as a result of detection is superimposed upon a voltage of the alternating current power source (20), and is supplied to the synchronous power source (S). The synchronous power source (S) generates a voltage having an instantaneous value which is the same as that of the voltage supplied thereto, and applies the generated voltage to the load (30) in parallel. Since the voltage applied by the synchronous power source (S) has a value for lowering the current detected by the current transformer (11), there is substantially no current flowing between the alternating current power source (20) and the load (30).

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patent: 4780802 (1988-10-01), Miyashita et al.
patent: 4891744 (1990-01-01), Yamamoto et al.
patent: 59-148913 (1984-08-01), None
patent: 01-298414 (1989-12-01), None
patent: 10-042467 (1998-02-01), None
patent: 9-5 2004-035623504 (2004-08-01), None

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