Instructions for operating and maintaining the TE-OAT and TE-ODT series oil‑immersed test transformers.
The TE‑OAT and TE‑ODT series oil‑immersed test transformers are compact, lightweight high‑voltage test devices designed for power‑system, mining, and research applications. They feature a single‑frame core, coaxial primary and high‑voltage windings, and an octagonal housing for easy handling.
The manual covers product overview, structure, working principle, wiring diagrams for AC, DC and leakage tests, safety precautions, and guidelines for selecting transformer capacity based on test voltage and equipment capacitance. This manual is written in Chinese.
| 安全系数 k (Vn 50~100kV) | 4 |
|---|---|
| 安全系数 k (Vn 150~300kV) | 3 |
| 安全系数 k (Vn >300kV) | 2 |
| 典型被试设备电容量 – 简单棒式或悬式绝缘子 | 几十微法 |
| 典型被试设备电容量 – 电力变压器 (≤1000kVA) | <1000pF |
Connect the low‑voltage input terminals a, x to the primary winding, use the measurement terminals E, F for the instrument, and connect the high‑voltage output terminals A, X to the test specimen as shown in Figure 6.
Use the formula Pn = k·Vn²·Ct·10⁻⁹, where Vn is the rated output voltage, Ct is the test specimen capacitance, and k is the safety factor based on Vn.