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出典:(日本電機工業会技術資料」EM – TR237 「モールド変圧器の過負荷耐量」)より
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1.単相20kVA以下及び三相30kVA以下の場合の過負荷耐量
過負荷運転前の負荷率|50%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/122f0288adf25fbfd2490884f854c93f.png?resize=1640%2C479&ssl=1)
過負荷運転前の負荷率|70%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/950e8f675f028041f63f93800c7820aa.png?resize=2891%2C849&ssl=1)
過負荷運転前の負荷率|90%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/8994e2abc9fb0228262984c83f08a714.png?resize=2900%2C864&ssl=1)
2.単相 20kVA を超え50kVA以下及び三相 30kVAを超え100kVA以下の場合の過負荷耐量
過負荷運転前の負荷率|50%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/2d10df480b3285f30ca65f3f0f5a00e9.png?resize=2868%2C842&ssl=1)
過負荷運転前の負荷率|70%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/78c194f0e801a5027f0dae8faaf74ea8.png?resize=2872%2C834&ssl=1)
過負荷運転前の負荷率|90%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/1e73873a08441f19371f4d9a17a3e4d9.png?resize=2880%2C849&ssl=1)
3.単相 50kVAを超え150kVA以下及び三相100kVAを超え200kVA以下の場合の過負荷耐量
過負荷運転前の負荷率|50%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/03731d9e421605053789cfeb064f6ccd.png?resize=2893%2C856&ssl=1)
過負荷運転前の負荷率|70%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/a6cbddf4b48ebb1b63f2e0d468837f7c.png?resize=2907%2C859&ssl=1)
過負荷運転前の負荷率|90%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/491a3037cc49db85399afd4b97f4c4d6.png?resize=2881%2C862&ssl=1)
4.単相150kVAを超え500kVA以下及び三相 200kVAを超え2000kVA以下の場合の過負荷耐量
過負荷運転前の負荷率|50%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/43a4f906f6e52addce9196e26dc4a395.png?resize=2888%2C855&ssl=1)
過負荷運転前の負荷率|70%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/8ad87ecfb15daf3b09ee974634f38140.png?resize=2909%2C851&ssl=1)
過負荷運転前の負荷率|90%
![](https://i0.wp.com/harita2021.com/wp-content/uploads/2024/02/32dd7e4ffaf7d3a570b94f8851800dc8.png?resize=2869%2C833&ssl=1)
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