The power frequency withstand voltage test device consists of a power frequency test transformer and a withstand voltage control box, which perform insulation strength tests on electrical appliances, electrical components, etc. under specified voltages.
The insulation oil dielectric loss tester is a high-precision instrument used for measuring the dielectric loss angle and volume resistivity of liquid insulation media such as insulation oil.
The ultra-low frequency high-voltage generator should have an automatic grounding discharge device, and the residual charge on the test sample should be automatically discharged within 5 seconds under the rated capacitance and rated output voltage.
水仙影院女黄人 | 91牛牛国产在线无弹窗 | 亚洲日韩视频在线 | 色妹子不卡在线视频 | 色色舞夜天 | 又粗又大又黄又爽真人免费毛视频 |
友谊县 | 周宁县 | 开江县 | 靖江市 | 紫云 | 磐石市 |
苍南县 | 杭州市 | 苗栗县 | 宝山区 | 建阳市 | 环江 |
繁峙县 | 礼泉县 | 潮安县 | 绥德县 | 承德市 | 尉犁县 |