TheFN5-12High Voltage Load Break Switchis a robust and reliable switching device designed for medium-voltage power distribution systems. This load break switch is engineered to safely make and break load currents under normal operating conditions, providing essential control and protection for various electrical applications. This article provides a detailed overview of the FN5-12, including its key technical specifications and associated fuse parameters.
Key Features and Benefits of the FN5-12 High Voltage Load Break Switch
The FN5-12 load break switch offers several key features that make it a valuable component in electrical networks:
- Reliable Load Breaking: Capable of safely interrupting rated load currents, ensuring operational safety and efficiency.
- Compact Design: Its design allows for installation in various switchgear configurations.
- Robust Construction: Built to withstand the demands of high-voltage environments, ensuring a long service life.
- Integration with Fuses: Can be used in conjunction with fuses for enhanced protection against short-circuit faults (FN5-12D model includes short-circuit making current capacity).
FN5-12 High Voltage Load Break Switch Technical Specifications
The following table details the key technical parameters of the FN5-12 High Voltage Load Break Switch:
| Nama | Unit | Value |
|---|---|---|
| Rated voltage | kV | 12 |
| Maximum working voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current | A | 400 / 630 |
| Rated short time withstand current (thermal stability current) | kA/S | 12.5/4 / 20/2 |
| Corriente de soporte máximo nominal (corriente de estabilidad dinámica) | ka | 31.5 / 50 |
| Corriente de ruptura de bucle cerrado nominal | A | 400/630 |
| Corriente de ruptura de carga de alimentación con calificación | A | 400/630 |
| Corriente de ruptura de carga de potencia del 5% | A | 20 / 31.5 |
| Corriente de carga de carga de cable nominal | A | 10 |
| Corriente de ruptura de transformador sin carga de carga | Equivalente a la corriente sin carga del transformador de 1250kVA | |
| Corriente de cierre de cortocircuito nominal | ka | 31.5 / 50 |
| Tiempos de ruptura de corriente de carga | Carga/tiempos | 100%/20, 30%/75, 60%/35, 5%/80 |
| Voltaje de resistencia de frecuencia de potencia de 1min (RMS), fractura de fase a fase / aislante | KV | 42/48 |
| Voltaje de soporte de frecuencia de potencia entre fracturas aislantes | KV | 53 |
| Voltaje de soporte de impulso de rayo a tierra (pico), fractura de fase a fase / aislante | KV | 75 /85 |
| Apertura/cierre del par de operaciones | Nm (n) | 90 (80) / 100 (200) |
| Nota: parte FN5-12D conectada a tierra del interruptor de carga con la capacidad de corriente de cortocircuito. |
Fusionar parámetros técnicos para FN5-12
El FN5-12Descanso de carga de alto voltajeEl interruptor a menudo se usa junto con fusibles para proporcionar protección contra sobrecorriente y cortocircuito.
| Modelo | Voltaje nominal kv | Fusible calificó la corriente A | Calificado rompiendo la actual KA | Corriente nominal del elemento fusible a |
|---|---|---|---|---|
| RN3 | 12 | 50 | 12.5 | 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 |
| RN3 | 12 | 75 | 12.5 | 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 |
| RN3 | 12 | 100 | 12.5 | 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 |
| RN3 | 12 | 200 | 12.5 | 2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 |
| Sdl*j | 12 | 40 | 50 | 6.3, 10, 16, 20, 25, 31.5, 40 |
| Sfl*j | 12 | 100 | 50 | 50, 63, 71, 80, 100 |
| Skl*j | 12 | 126 | 125 | - |
Aplicaciones del interruptor de interrupción de carga de alto voltaje FN5-12
El interruptor de interrupción de carga de alto voltaje FN5-12 es adecuado para una variedad de aplicaciones en sistemas de energía de voltaje medio, que incluyen:
- Subestaciones de distribución
- Unidades principales de anillo (RMU)
- Distribución de energía industrial y comercial
- Protección de transformadores y cables
- Cambio de circuitos de carga
El interruptor de interrupción de carga de alto voltaje FN5-12 es un componente confiable y esencial para controlar y proteger los circuitos eléctricos de voltaje medio.
