Product Overview:
The FLN36-12D/FLRN36-12D indoor AC high voltage sulfur hexafluoride load switch is a cutting-edge product developed by our company to meet the operational requirements specific to our country. This advanced load switch has undergone comprehensive type testing and adheres to the standards of GB3804 (363kV AC High Voltage Load Switch), GB1926 (High Voltage Load Switch Fuse Combination Electrical Appliances), IEC60265, and IEC60420. Designed to ensure high performance and reliability, it is an essential component for modern urban power grids.
Structural Features:
Installation Method:
Applicable Environmental Conditions:
| No. | Description | Unit | Specitications
|
||
|---|---|---|---|---|---|
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated Frequoncy | Hz | 50 | ||
| 3 | Rated current | A | 630 | ||
| 4 | Rated peak withstand current | kA | 50 | ||
| 5 | Rated short time withstand current 4s | kA | 20 | ||
| 6 | Rated short circuit making current (peak) | kA | 50 | ||
| 7 | Rated breaking current
|
Active load breaking current | A | 630 | |
| Closed loop breaking current | A | 630 | |||
| Cable charging breaking current | A | 10 | |||
| 8 | Rated power trequency withstand voltage(1min) To earth and between phases/Across the isofating distances |
kv | 42/48 | ||
| 9 | Rated lighting impulse withstand voitage(peak) To earth and between phases/Across the isolating distances |
kv | 75/85 | ||
| 10 | Rated SF6 gas pressure (abs20℃) | Mpa | ≤0.04 | ||
| 11 | Rated operating voltage (electric) | v | AC220DC220
|
||
| 12 | Rated voltage of shunt release | v | AC220、DC220
|
||
| 13 | Average opening speed | m/s | 3.5±1.5 | ||
| 14 | Average closing speed | m/s | 3.5±1.5 | ||
| 15 | Opening and closing the same period of the three-phase | ms | 53 | ||
| 16 | Main circuit resistance | μ Ω | ≤120 | ||
| 17 | Maximum torque manual operation | N.m | ≤160 | ||
| 18 | Between phases center distance | mm | 210±0.5 | ||
FLN36-12D is an indoor high-voltage SF6 load switch, suitable for indoor switchgear with a rated voltage of 12KV. The switch adopts SF6 gas as the extinguishing and insulating medium, and has the characteristics of small volume, easy installation and use, and strong adaptability to the environment. The main circuit and ground circuit of the FLN36-12D load switch are sealed in an insulating shell made of epoxy resin cast by APG process. This design not only has excellent insulation properties, but also can resist the influence of dirty environment. In addition, the insulation shell is combined with the upper and lower insulation covers, and the inside is filled with SF6 gas with a relative pressure of 0.1bar. The lower insulation cover has protective measures to ensure that the overpressurized SF6 gas is directly sprayed into the rear channel of the cabinet in case of an accident, so as to ensure personal safety.
