| Brand | ROCKWILL |
| Numero ng Modelo | 12kV indoor high-voltage load break switch 12kV na indoor high-voltage load break switch |
| Nararating na Voltase | 12kV |
| Narirating na kuryente | 400A |
| Narirating na pagsasalungat | 50/60Hz |
| Serye | FN |
Product Overview
Ang FN5 - 12 indoor AC high - voltage load break switch (na ituturing na load break switch sa ibaba) ay angkop para sa AC 50Hz, 12kV networks. Ginagamit ito para sa pagsira ng load current at pagbubukas ng short - circuit current. Ang load break switch na may fuse ay maaaring putulin ang short - circuit current at gamitin bilang isang proteksyon switch.
Ang load break switch na ito ay maaaring maglabas ng CS6 - 1 manual operating mechanism at ang espesyal na CS manual operating mechanism para sa produktong ito.
Key Features
Precise Current Control: Angkop para sa 12kV, 50Hz AC systems. Maaari itong matatag na putulin ang load current at buksan ang short - circuit current, nagbibigay ng normal na operasyon at pagmamanntain ng power grid pati na rin ang mga emergency operations sa panahon ng mga kaparusahan.
Extended Protection Function: Kapag pinagsama ito sa fuse, maaari itong putulin ang short - circuit current at gumana bilang isang proteksyon switch, nagbibigay ng overload at short - circuit dual proteksyon para sa mga power equipment at nagpapaliit ng mga antas ng proteksyon ng distribution network.
Wide Scene Adaptability: Nakatuon sa indoor 12kV AC networks. Angkop ito para sa karaniwang indoor power distribution scenarios tulad ng ring main units at box - type substations, nagpapatugon sa mga pangangailangan ng construction ng distribution network.
Flexible Mechanism Configuration: Suportado ang CS6 - 1 general manual operating mechanism at maaari ring ma-adapt sa espesyal na CS mechanism, kompatibleng sa iba't ibang mga operasyon habits at equipment matching requirements.
Mature Technical Architecture: Iterated batay sa classic FN5 - 12 model. Mayroon itong compact structure, matatag na arc - extinguishing performance, mataas na long - term operation reliability, at nagbabawas ng operation at maintenance costs.
Technical Parameters
Name |
Unit |
Value |
Rated Voltage |
kV |
12 |
Maximum Operating Voltage |
kV |
12 |
Rated Frequency |
Hz |
50 |
Name |
Unit |
Value |
|
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 Cable Charging Breaking Current |
A |
10 |
|
Rated No - load Transformer Breaking Current |
No - load Current of 1250kVA Transformer |
||
Rated Short - circuit Making Current |
kA |
31.5 |
50 |
Load Current Breaking Times |
Load/Time |
100%/20 |
30%/75 |
1min Power Frequency Withstand Voltage (Effective Value, to Ground, Phase - to - Phase/Isolation Break) |
kV |
42/48 |
|
Power Frequency Withstand Voltage, Between Isolation Breaks |
kV |
53 |
|
Lightning Impulse Withstand Voltage (Peak Value, to Ground, Phase - to - Phase/Isolation Break) |
kV |
75/85 |
|
Opening and Closing Operating Torque (Force) |
N·m (N) |
90(80) |
100(200) |
Technical Parameters of Fuse
Model |
Rated Voltage (kV) |
Rated Current of Fuse (A) |
Rated Breaking Current (kA) |
Rated Current of Fuse Element (A) |
RN3
|
12
|
50 |
12.5 |
2, 3, 5, 7.5, 12, 15, 20, 30, 40, 50 |
75 |
12.5 |
75 |
||
100 |
12.5 |
100 |
||
200 |
12.5 |
150, 200 |
||
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 |
50 |
125 |
Altitude: Hindi liliit sa 1000m;
Ambient Air Temperature: Upper limit +40°C, Lower limit -25°C (Hindi liliit sa -5°C para sa motor - operated mechanisms);
Relative Humidity: Daily average hindi lalo sa 95%, Monthly average hindi lalo sa 90% (+25°C);
Ang ambient air ay dapat walang malinaw na polusyon mula sa corrosive o flammable gases, water vapor, etc.;
Walang madalas na malubhang vibration.
