| Customization: | Available |
|---|---|
| Rated Voltage: | 12kv |
| Rated Frequency: | 50Hz |
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FKN12-12/FKRN12-12D Indoor high pressure compressed air load switch
Overview
The FKN12-12/FKRN12-12D indoor high voltage air-blast load switch is designed for three-phase high voltage electrical systems of 12kV and below. It is extensively used for controlling and protecting electrical equipment such as transformers, cables, and overhead lines. This load switch is particularly suitable for terminal substations and box-type substations in urban and rural power grids, as well as for controlling and protecting ring networks and dual radiation power supply units.
Operating Environment & Application
•This load switch is primarily used in three-phase high voltage electrical systems of 12kV and below, suitable for terminal substations, box-type substations, and for the control and protection of ring networks and dual radiation power supply units.
•It is widely applicable in both urban and rural distribution networks, meeting the demands of various power equipment scenarios.
Structural Features
1.High-Voltage Air-Blast Design: Offers stable operational performance and reliable electrical isolation.
2.Multifunctional Application: Suitable for controlling a wide range of power equipment including transformers, cables, and overhead lines.
3.Durable and Robust: Designed to meet stringent power equipment standards, ensuring reliable long-term operation.
Precautions
•Before installation, ensure that the load switch is compatible with the site's power system requirements to avoid unnecessary failures.
•Regular inspection of the load switch's functions and safety features during use is essential for ensuring reliable operation.
•Installation and maintenance should be conducted by professionally trained personnel to ensure operational safety.
| Technical Specification | |||||
| Serial number | project | unit | FKN12-12D | FKRN12-12D | |
| 1 | Rated voltage | kV | 12 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated current | A | 630 | 1250 | |
| 4 | Lightning impulse tolerance voltage | kV | Ground and interphase 42.isolated fracture 48 | ||
| 5 | 1 min power frequency withstand voltage | kV | Ground and interphase 75, isolated fracture 85 | ||
| 6 | Rated short-time tolerant power | Load switch | kA | 20 | - |
| Grounding switch | kA | 20 | |||
| 7 | Rated short circuit duration | Load switch | s | 4 | |
| Groundingswitch | s | 2 | |||
| 8 | Rated Short Circuit Closing Qurrent (Peak) | 50 | - | ||
| 9 | Rated breaking current | Active load breaking current | A | 630 | - |
| Closed loop breaking current | A | 630 | - | ||
| 5% active load breaking current | A | 31.5 | - | ||
| Cable charging current | A | 10 | - | ||
| Breaking No-load Transformer Capacity | KVA | 1250 | |||
| 10 | Rated short aircuit breaking curment (current limiting fuse) | kA | - | 31.5 | |
| 11 | Rated transfer current | A | - | ||
| 12 | Mechanical life | Second-rate | 2000 | 2000 | |
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