ABNORMAL VOLTAGE PROTECTION DEVICE OF ELECTRIC CAR TRACK
To further improve the ground fault accident protection function in an electric car track.SOLUTION: An abnormal voltage protection device 30 of an electric car track comprises a discharging auxiliary gap circuit 36 connected between a pair of discharging arc horns 13 and 14. In the auxiliary gap cir...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To further improve the ground fault accident protection function in an electric car track.SOLUTION: An abnormal voltage protection device 30 of an electric car track comprises a discharging auxiliary gap circuit 36 connected between a pair of discharging arc horns 13 and 14. In the auxiliary gap circuit 36, a plurality of discharge circuits 40-1 and 40-2 and a discharging backup gap 45 are connected in parallel. A plurality of discharge elements 41 and 42 in the plurality of discharge circuits 40-1 and 40-2 are stored in an insulating case 31, and a plurality of arc generation wires 43 in the plurality of discharge circuits 40-1 and 40-2 are respectively arranged just under the arc horns 13 and 14 on the outside of the insulating case 31.SELECTED DRAWING: Figure 1
【課題】電車線路における地絡事故保護機能の更なる向上を図る。【解決手段】電車線路の異常電圧防護装置30は、放電用の一対のアークホーン13,14間に接続される放電用の補助ギャップ回路36を備えている。補助ギャップ回路36は、複数の放電回路40−1,40−2と、放電用のバックアップギャップ45と、が並列に接続されている。複数の放電回路40−1,40−2内の複数の放電素子41,42は、絶縁性ケース31内に収納され、複数の放電回路40−1,40−2内の複数の発弧線43は、絶縁性ケース31外であってアークホーン13,14の直下にそれぞれ配置されている。【選択図】図1 |
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