Insulators
20NF250 24 kV Porcelain Transformer Bushing
Product Overview
20NF250 porcelain transformer bushing for 24 kV service, with more than 450 mm creepage distance and 125 kV lightning impulse rating shown in its technical drawing.
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Technical Parameters
| Parameter | Unit | Value |
|---|---|---|
| Model | 20NF250 | |
| Rated service voltage | kV | 24 |
| Overall length | mm | 385 ± 5 |
| Largest shed diameter | mm | 155 |
| Creepage distance | mm | >450 |
| Dry power-frequency flashover | kV | 55 |
| Wet power-frequency flashover | kV | 50 |
| Lightning impulse voltage | kV | 125 |
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