一、说明 Explanation
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产品型号Model：TYD-110 |
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一次额定电压 Primary rated voltage： 110/√3 KV |
额定频率： 50 Hz（允许偏差±0.5Hz） RATED FREQUENCY: 50 HZ (tolerance 0.5 Hz) |
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二次绕组 Secondary winding |
额定电压 Rated Voltage: |
准确级次 Accuracy level |
额定容量 Rated capacity |
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剩余电压绕组 Residual voltage winding |
额定电压 Rated Voltage |
准确级次 Accuracy level |
额定容量 Rated capacity |
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标称电容 Nominal capacitance |
载波耦合电容器 0.02 µF Carrier coupled capacitor |
C1 0.028421 µF |
C2 0.06526 µF |
二、试验内容Test content
1、 外观检验 Visual inspection
互感器的金属件外露表面具有 良好 的防腐蚀层。
The exposed surface of the metal parts of the transformer has a good anti-corrosion layer.
2、 电容分压器试验Capacitive voltage divider
电容分压器的密封性能 良好 。
Good sealing performance of the Capacitive voltage divider.
单节载波耦合电容器工频耐压试验一分钟通过 230 KV。
Power frequency withstand voltage test of single-section carrier coupling capacitor passes 230kv in one minute.
低电压端子和接地端子之间工频耐压试验一分钟通过 4 KV。
The power frequency withstand voltage test between the low voltage terminal and the grounding terminal passes 4kv in one minute.
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电容单元编号 Capacitor unit number |
电容器容量 Capacitor capacity |
损耗角正切值tgδ Tangent value of loss angle |
局部放电 Partial discharge |
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20051713 |
C1 0.01855 µF |
0.09 ℅ |
5pC |
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总电容量 C= 0.01985 µF Total capacitance |
3、 电磁单元试验Electromagnetic unit test
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电磁单元编号Electromagnetic unit number：20052114 |
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极性检验： 减 极 性Polarity test: Depolarity |
密封性能： 良 好Sealing performance: Good |
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一次绕组感应耐压试验： 频率 150 Hz， 时间40 s, 电压68KV， 通过。 First winding induction withstand voltage test: Frequency 150Hz, time 40s, voltage 68kv, Pass. |
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中间变压器一次绕组低压端对地工频耐压一分钟通过10 KV（r.m.s）， 通过。 Intermediate Transformer Primary Winding low-voltage end-to-ground frequency withstand voltage one minute through 10 KV (r.m.s) , Pass. |
