General:
FN5-12 series indoor AC HV load switch is suitable for AC 50Hz, 10kV network to break load current and close short-circuit current. The load switch with fuse can break short-circuit current as protection switch. This series is fitted with specialized CS manual operating mechanism or CS6-1 manual operating mechanism.
Characteristics:
1. Small dimension, light weight, simple structure, convenient maintenance, small operating force.
2. Reliable mechanical interlock prevents mal-operation
3. Clearly visible opening
4. Applied self-energy gas-generation arc-extinguishing has stable performance. It is both safe and reliable.
5. Composite equipments have open-phase protection function.
| Name | Unit | Data |
| Rated voltage | kV | 10 |
| Maximum working voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current | A | 400 630 |
| Rated short-time withstand current (thermal stable current) | kA/s | 12.5/4 20/2 |
| Rated peak withstand current (dynamic stable current) | kA | 31.5 50 |
| Rated closed-loop breaking current | A | 400 630 |
| Rated active load breaking current | A | 400 630 |
| 5% rated active load breaking current | A | 20 31.5 |
| Rated breaking current of cable charging | A | 10 |
| Rated breaking current of no-load transformer |
| 1250kVA no-load current of transformer |
| Rated short-circuit closing current | kA | 31.5 50 |
| Load current breaking times | load/times | 100%/20 30%/75
60%/35 5%/80 |
| 1min power frequency withstand voltage (effective) to earth, inter-phase, isolation opening | kV | 42/48 |
| Power frequency withstand voltage between isolation openings | kV | 53 |
| Lightning impulse withstand voltage(peak)to earth, inter-phase, isolation opening | kV | 75/85 |
| Closing and breaking operating torque(force) | N. m | 90(180) 100(200) |
Remark: The earthing part of FN5-10D load switch also has short-circuit closing capability
technical parameter table of FN5-10 load switch_ fuse combined power equipment
| Name | Unit | Data |
| Rated voltage | kV | 10 |
| Maximum working voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current | A | 100 |
| Rated short-circuit breaking current(anticipated effective value) | kA | 40 |
| Rated short-circuit closing current(anticipated effective value) | kA | 100 |
| Rated transfer current | A | 1400 |
| 1min power frequency withstand voltage (effective) to earth, inter-phase, isolation opening | kV | 42/48 |
| Lightning impulse withstand voltage (peak) to earth, inter-phase, isolation opening | kV | 75/85 |
| Fuse-link striking output energy | J | 2-5 |
Ningbo Ville Electric Co., Ltd. is a company specialized in research, development and production of transformer and high voltage & low voltage electrical power equipment.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in turnkey project contractor of power substation, power plant project and electric power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products.
Products application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier"
