TIDA-00440
用於判斷絕緣電阻的漏電流量測參考設計
TIDA-00440
概覽
This reference design measures insulation resistance up to 100 MΩ. It has an on-board isolated 500-Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
特點
- Leakage current measurement circuit with option for programmable current sense amplifier and switchable shunt resistors
- Range of measurement: 0 to 100 MΩ with accuracy of 5% (un-calibrated)
- Test voltage level derived from IEEE 43-2000 (recommended practice for testing insulation resistance of rotating machinery)
- On-board isolated 500-V power supply to measure insulation resistance
- Provision for calibration resistor on board
- Hardware support for start-of-frame detect allows implement IEEE1588 PTP
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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檢視所有 3
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | Leakage Current Measurement for Determining Insulation Resistance Design Guide (Rev. A) | 2015/4/30 | |||
| 選擇指南 | Current Sense Amplifiers (Rev. E) | 2021/9/20 | ||||
| 技術文章 | How to detect insulation failures in electrical equipment – part 2 | PDF | HTML | 2016/5/2 |