知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104297654A 模拟油浸倒立式电流互感器内部多处突出物缺陷的模型 无效 - 驳回

模拟油浸倒立式电流互感器内部多处突出物缺陷的模型
摘要：
本发明涉及一种模拟油浸倒立式电流互感器内部多处突出物缺陷的模型。其特点是：包括油杯及其封盖(4)，在该封盖(4)上开有一个内螺纹孔，在该内螺纹孔中通过螺纹安装有一个高压电极延长杆(1)，在该高压电极延长杆(1)上伸入油杯内的一端安装有板状的上电极(2)，在该上电极(2)表面可拆卸安装有至少两个针电极(3)，另外在前述油杯内的底部安装有板状的下电极(6)。本发明提供了一种模拟电力设备内多个金属突出物电位的缺陷模型，可以模拟真实电力设备中多处金属突出物存在时引起的局部放电。放电特性的测量结果表现出较明显金属突出物放电的特征，缺陷可识别度高。
摘要（英）：

The invention relates to a model for simulating multiple protrusion defects in an oil immersion headstand type current transformer. The model is characterized by comprising an oil cup and a close cover (4) of the oil cup, an inner threaded hole is formed in the close cover (4), a high-voltage electrode extending rod (1) is installed in the inner threaded hole through threads, a platy upper electrode (2) is installed at the end, extending in the oil cup, of the high-voltage electrode extending rod (1), at least two needle electrodes (3) are detachably installed on the surface of the upper electrode (2), and a platy lower electrode (6) is installed at the bottom in the oil cup. According to the model for simulating the multiple protrusion defects in the oil immersion headstand type current transformer, partial discharge caused by existence of multiple metal protrusions in a real power device can be simulated. A measurement result of the discharge characteristic shows the obvious metal protrusion discharge characteristic and the defect recognition degree is high.

0/0