El interruptor de puesta a tierra de alta tensión para interiores de la serie JN15-12/31.5-80 cumple los requisitos de la norma GB1985-2004 "Interruptor de aislamiento de alta tensión de CA e interruptor de puesta a tierra" y de la norma IEC129, y es adecuado para sistemas de alimentación de CA de 12 kV e inferiores a 50 Hz, y puede utilizarse con diversos tipos de aparamenta de alta tensión.
Visión general
JN15-12/31.5-80 series indoor high voltage grounding switch performance in line with GB1985-2004 “AC high voltage isolation switch and grounding switch” and IEC129 requirements, suitable for 12kV and below AC 50Hz power system, can be used with various types of high voltage switchgear. It can also be used as ground protection for high voltage electrical equipment maintenance. This type of switch can be used with a live display device.
Modelo Significado
| J | N | 15 | – | 12 | / | 31.5 | – | □ |
| ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | |||
| Ground switch | Indoor installation | Número de secuencia del diseño | Tensión nominal (KV) | Rated short-time withstand current (KA) | Interphase distance |
Condiciones ambientales de uso
Ambient air temperature: upper limit +40℃ , lower limit -10℃ ;
Sea level: no more than 1000 meters;
Humidity conditions: the average daily relative humidity is not more than 95%, the average monthly relative humidity is not more than 90%;
Seismic sequence: no more than 8 degrees;
Pollution level: Class II.
Principales parámetros técnicos
| Artículo | Unis | Argumento | ||
| Tensión nominal | Kv | 12 | ||
| Rated short-time withstand current(heat stable) | KA | 31.5 | ||
| Rated short circuit holding time | S | 4 | ||
| Corriente nominal de cierre en cortocircuito | KA | 80 | ||
| Rated peak withstand current (dynamic stability) | KA | 80 | ||
| Rated insulation level | Rated short-time power frequency withstand voltage | kV | Relative to each other | 42 |
| Rated lightning impulse withstand voltage | kV | Relative to each other | 75 | |
| Vida mecánica | tiempo | 2000 | ||
Copper Bar Terminal Diagram
Dimensiones y montaje (mm)
| Modelo | E | F | G | H | D |
| JN15-12/31.5-150 | 150 | 75 | 165 | 535 | 396 |
| JN15-12/31.5-165 | 165 | 75 | 160 | 565 | 426 |
| JN15-12/31.5-210 | 210 | 75 | 160 | 655 | 516 |
| JN15-12/31.5-250 | 250 | 75 | 160 | 735 | 596 |
| JN15-12/31.5-275 | 275 | 75 | 185 | 810 | 646 |
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