| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Normal Type Circuit Breaker |
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Circuit Breaker Type User Boundary Switch Breaker Controller
In case of intermal fault of 10kV overhead distribution line T connection users, if the fault occurs in itsincoming line section, or if the fault occurs in the inner side of the user's incoming line switch, but the time limit ofits protection action was not matched with the protection of substation outgoing switch, all can cause thesubstation outgoing switch protection of. lf the fault nature is permanent, the substation overlap is notsuccessful, then an accident within the boundaries of a medium voltage user will make the entire distribution linepower failure, it is a common spread accident in the distribution network, will cause a bad impact on society.
The demarcation switch is the ideal equipment to solve the above mentioned accidents. The equipment isinstalled at the responsibility boundary point of the 10kV overhead distribution line, which can realize theautomatic removal of single-phase ground fault and automatic isolation phase short circuit fault. Ensure thesafety of non-fault users.
FDR-2 demarcation circuit breaker controller is specially used for inteligent control of demarcation switch body. The protection control function and communication function are realized. The controller and the switchbody are electrically connected through the control cable and aviation connector to realize its protection andautomatic monitoring function. The product is widely used in urban and rural 10kV overhead distribution lines.
| No | Project | Data | Remarks |
| 1 | Input operating voltage | AC220V | Allowable range of fluctuation ± 20% |
| 2 | Input operating voltage frequency | 50Hz | |
| 3 | Machine power consumption | <10W | |
| 4 | Output voltage (on-off operation) | DC220V | |
| 5 | Secondary phase current sampling input value | 0.2~20A | Secondary phase current above 100A allows saturation |
| 6 | Secondary zero sequence current sampling input value | 0.01A~5A | Secondary zero sequence current allows saturation above 5A |
| 7 | Secondary current sampling accuracy | ±3% | Saturated area is not required |
| 8 | Interphase protection action delay time setting range | 0.1~10s | Adjustable range |
| 9 | Zero sequence protection action delay time setting range | 0~7200s | Adjustable range |
| 10 | Reclosing times | 1~3s | Adjustable range |
| 11 | First coincidence time | 0.3~600s | Adjustable range |
| 12 | Second, third coincidence time | 5~600s | Adjustable range |
| 13 | Insulation resistance | >100MΩ/DC500V | 1. External terminals are grounded together 2. Power input terminal to power supply, switch control output terminal 3. Switch state input terminal to power supply, switch control output terminal |
| 14 | Power frequency withstand voltage | 2000V/1min | Same as above |
| 15 | Shock frequency | 5000V,1.2/50μS Positive and negative three times each |
1. Power supply, switch control output terminal together to ground 2. The power input terminal is grounded together |
Xiaogan Hanguang Senyuan Electric Co., Ltd, The former state-owned ndustrial enterprise which wasrestructured as a joint-stock enterprise, ls located in high technical development zone in Xiaogan cit, Hubei provinceSince the company had successfully developed ZN28A-12, ZN23 -40.5 series of a vacuum circuit breaker in1995, The company continuously engaged in development and produce 40. 5kv and lower voltage vacuum circuitbreaker, Vacuum contacto, Vacuum load break switch all along. Our 12-40.5kv vacuum circuit breakers arepublished in Recommend devices and manufactures for national urban and rural power grid construction and reformissued by State Economic and Trade Commission.
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