| 摘要 |
<p>PROBLEM TO BE SOLVED: To miniaturize a neutral-point grounding apparatus in which a reactor and a resistor are installed side by side. SOLUTION: A neutral-point grounding apparatus is constituted in such a way that a liquid resistance material 5, in which an electromagnetic shielding tube 3 and an electrostatic shielding plate 4 are immersed, is filled into a container 1 for an air-core reactor device constituted so as to house an air-core coil 2 having a prescribed resistance, the electromagnetic shielding tube 3 and the electrostatic shileding plate 4 inside the container 1, that the electromagnetic shielding tube 3 and the electrostatic shielding plate 4 are used also as electrodes of the liquid resistance material 5 and that a reactance, a resistance which is connected in series with the reactance and a resistance connected in parallel with a series circuit by the reactance and by the resistance are housed inside a single container.</p> |
