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会社のニュース | | | | | | | | コモンモードチョーク | | | | | | | | 業界ニュース | | | | | | | | 変成器| | | | | | | |RJ45 connectors
1.断熱材を交換するときは、断熱性能が保証されている必要があります
処理中に交換断熱性能をテストし、要件を満たしている場合にのみ使用してください。鉛ブラケットの木製ブロックの断熱には、特に注意を払う必要があります。設置する前に、木製ブロックをサーマルに配置する必要があります high frequency 変成器,current 変成器 木製ブロックの断熱を確実にするために、80°C前後の油を一定期間入れます。
2.The insulation test of high-frequency 変成器 should be carried out when the high-frequency 変成器 is sprayed with oil for 24 hours
Since some wet insulation parts will be immersed in hot oil for a long time, moisture will spread to the insulation surface, so insulation defects cannot be detected after oil injection. For example, a 110 kVA + low-voltage side of 31.5 MWa is treated with a 10kV copper rod support block. After injecting high-frequency 変成器 oil, everything is normal in the test, and the insulation resistance of the 10kV low-voltage side to the core, wire clamp and ground is reduced to about 1Ω. After inspection of the hanging hood, it was found that the insulation of the 10kV copper bar supporting wooden block was very low. Therefore, the insulation test should be carried out after 24 hours of oil injection in the high-frequency 変成器, which is more reliable.
3.コアを再取り付けするときは、コアの鋭い角に注意してください
When installing a yoke on the iron core, pay attention to the sharp corners of the core chip, and the insulation between the oil channels should be measured in time, especially the sharp corners of the chip at the oil passage to prevent the overlap of chips from causing the core to be grounded at multiple points. For example, when replacing a 120MVA220kV high-frequency 変成器 with a low-voltage side yoke, the insulation between the oil channels was not measured in time because the sharp corners of the chip were not paid attention to, and the insulation between the oil channels was measured to be 0 after installation. After zui, because the sharp corner of the core chip is short-circuited to the oil channel, it takes a long time to find.
4.巻線材料を短絡に強いものに置き換えます
1.断熱材を交換するときは、断熱性能が保証されている必要があります
処理中に交換断熱性能をテストし、要件を満たしている場合にのみ使用してください。鉛ブラケットの木製ブロックの断熱には、特に注意を払う必要があります。設置する前に、木製ブロックをサーマルに配置する必要があります high frequency 変成器,current 変成器 木製ブロックの断熱を確実にするために、80°C前後の油を一定期間入れます。
2.The insulation test of high-frequency 変成器 should be carried out when the high-frequency 変成器 is sprayed with oil for 24 hours
Since some wet insulation parts will be immersed in hot oil for a long time, moisture will spread to the insulation surface, so insulation defects cannot be detected after oil injection. For example, a 110 kVA + low-voltage side of 31.5 MWa is treated with a 10kV copper rod support block. After injecting high-frequency 変成器 oil, everything is normal in the test, and the insulation resistance of the 10kV low-voltage side to the core, wire clamp and ground is reduced to about 1Ω. After inspection of the hanging hood, it was found that the insulation of the 10kV copper bar supporting wooden block was very low. Therefore, the insulation test should be carried out after 24 hours of oil injection in the high-frequency 変成器, which is more reliable.
3.コアを再取り付けするときは、コアの鋭い角に注意してください
When installing a yoke on the iron core, pay attention to the sharp corners of the core chip, and the insulation between the oil channels should be measured in time, especially the sharp corners of the chip at the oil passage to prevent the overlap of chips from causing the core to be grounded at multiple points. For example, when replacing a 120MVA220kV high-frequency 変成器 with a low-voltage side yoke, the insulation between the oil channels was not measured in time because the sharp corners of the chip were not paid attention to, and the insulation between the oil channels was measured to be 0 after installation. After zui, because the sharp corner of the core chip is short-circuited to the oil channel, it takes a long time to find.
4.巻線材料を短絡に強いものに置き換えます
