Shf-20g 20kv Porcelain Pin Insulator, High Voltage Insulator, Ceramic Insulator
Shf-20g 20kv Porcelain Pin Insulator, High Voltage Insulator, Ceramic Insulator image
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- Overview
- Product Description
- Parameter drawing
Basic Info.
Packaging & Delivery
Product Description
HV porcelain pin insulator of SHF20GS type
There are two modifications of the insulator after the manner of its coupling:
with the polyethylene capsule, with the composite material thread corresponding to the requirements of SFS (Finland) standard.
Производитель изоляторов штыревых фарфоровых ШФ-20 Г
| Minimum voltage | Nominal | kV | 20 |
| Puncture voltage in insulating medium | kV | 180 | |
| 50 Hz withstand voltage (dry) | kV | 75 | |
| 50 Hz withstand voltage (wet) | kV | 60 | |
| Impulse withstand voltage | kV | 125 | |
| Average annual number of failure, not more than | N/per year | 0.0005 | |
| Nominal creepage distance, not less than | mm | 325±14.5 | |
| Minimum mechanical failing load (bending), not less than | kN | 13 | |
| Weight | kg | 1.82±0.1 | |
| TYPE | ST-10/J | ST-15/J | ST-20/J | P-20-D | ||
| Mian Demension in (mm) | H | 130 | 150 | 185 | 185 | |
| h | 55 | 60 | 65 | 52.65 | ||
| D | 135 | 150 | 175 | 175 | ||
| d | 31 | 31 | 35 | 27.78 | ||
| R1 | 10 | 10 | 10 | 10 | ||
| R2 | 12.5 | 12.5 | 12.5 | 12.5 | ||
| Nominal Voltage(Kv) | 10 | 15 | 20 | 20 | ||
| Creepage Distance(mm) | 240 | 270 | 340 | 340 | ||
| Power-Frequency Puncture Voltage (Kv) | 110 | 120 | 140 | 140 | ||
| Electronical Failing Load(KN) | 12 | 12 | 14.7 | 14.7 | ||
| Flashover(min) | Power Frequency Voltage | Dry(Kv) | 70 | 75 | 90 | 80 |
| Wet(Kv) | 42 | 53 | 65 | 50 | ||
| 50%Critical Impulse | 100 | 110 | 130 | 130 | ||
| Weight (Kg) | 1.5 | 2.7 | 3.4 | 3.8 | ||
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