| 摘要 |
PURPOSE: An integrated current/voltage measuring apparatus using light is provided to reduce the error of an optical voltage transformation element which is caused by the temperature deflection by surrounding the element with an external insulator. CONSTITUTION: A high voltage conductor(10) is connected to a high-voltage line and a feeder of a receiving party. An insulator(20) surrounds the center area of the high voltage conductor. A floating electrode(30) surrounds one side of the insulator. An optical voltage transformation element(40) is connected to the high voltage conductor and floating electrode. A core(50) detects the current induced from the high voltage conductor. An optical current transformation element(60) is connected to the core and is arranged in the insulator. |
