Name:Load switch
FOB Port:Ningbo/Shanghai/Yiwu/Guangzhou/Shenzhen
Terms of Payment:T/T
Tel: +86 13706784523(Whatsapp)/
Email: amy@putai-electric.com /
Name:Load switch
FOB Port:Ningbo/Shanghai/Yiwu/Guangzhou/Shenzhen
Terms of Payment:T/T
FKN12A-12D Pneumatic Load Switch
FKRN12A-12D series pneumatic load switch-fuse combination electrical appliances are suitable for 12KV and the following three-phase power distribution system, as the control and protection of transformers, cables, overhead lines and other power equipment; especially suitable for urban network, agricultural network terminal substations and box substations.
It is suitable for 12KV and below three-phase power distribution system as control and protection of transformers, cables, overhead lines and other electric equipment; especially suitable for terminal substations and box-type substations in urban and agricultural networks. It is also suitable for the control and protection of ring network and double radiation power supply unit.
| NO. | Projects | Unit | FKN12-12D/T630-20 | FKRN12-12D/T125-31.5 | |||||
| 1 | Rated Voltage | KV | 12 | 12 | |||||
| 2 | Rated Frequency | Hz | 50 | 50 | |||||
| 3 | Rated current | A | 630 | 125 | |||||
| 4 | Rated insulation level | 1min frequency withstand voltage | To ground, phase to phase | KV | 42 | 42 | |||
| Isolation break | 48 | 48 | |||||||
| Lightning impulse withstand voltage (peak) | To ground, phase-to-phase | 75 | 75 | ||||||
| Isolated interrupt | 85 | 85 | |||||||
| 5 | Rated short-time withstand current | Load switch | KA | 20 | |||||
| Grounding switch | 20 | ||||||||
| 6 | Rated short-circuit duration | Load switch | S | 4 | |||||
| Grounding switch | 2 | ||||||||
| 7 | Rated short-circuit closing current (peak) | KA | 50 | ||||||
| 8 | Rated opening current | Active load opening current | A | 630 | |||||
| Closed Loop Breaking Current | 630 | ||||||||
| 5% active load opening current | 31.5 | ||||||||
| Cable charging current | 10 | ||||||||
| Open Load Transformer Capacity | KVA | 1250 | |||||||
| 9 | Rated short-circuit breaking current (current limiting fuse) | KA | - | 31.5 | |||||
| 10 | Rated transfer current | A | 1200 | ||||||
| 11 | Mechanical life | 次 | 2000 | 2000 | |||||
| 12 | Impactor output energy | J | 1+0.5 | ||||||
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