Polymer Rubber / Porcelain Type Support Insulators (HORIZONTAL TYPE)
Kyung Dong Interrupter Switchs are made to operate at voltage up 36KV for the applications of Distribution Feeders and customer's substations.
The main characteristics are :
High operation reliability
Simple maintenance & inspection
High dynamic & thermal strength
No external arc
Simple driving mechanism
The above mentioned characteristics are qualified basing upon a combination of public laboratory test and over the year's operational experience.
| No | Rating(kV) | ||
|---|---|---|---|
| 15 | 25 | 35 | |
| A | 775 | 850 | 935 |
| B | 460 | 540 | 605 |
| C | 515 | 610 | 710 |
| D | 395 | 490 | 590 |
■ Specification
| Rated voltage(kV) | 15 | 25 | 35 | |
| Rated current | Continuous (A) | 600/630 | ||
|---|---|---|---|---|
| Momentary (kA) | 40 | |||
| 1sec (kA) | 25 | |||
| Rated Frequency(Hz) | 50/60 | |||
| Basic Impules Withstand Voltage(kV) | 110 | 150 | 200 | |
| Power-frequency Withstand Voltage(kV) | 50 | 70 | 95 | |
| Service Condition | Out door | |||
| Support Insulator(Porcelain) | TR 205 | TR 208 | TR 210 | |
| Operation | Manual Operation | |||
| Applied Standards | IEC 60265-1 | |||
