Indoor Solid-Sealed Vacuum Load Break Switch 12kV
Attributs clés
| Marque | ROCKWILL |
| Numéro de modèle | Indoor Solid-Sealed Vacuum Load Break Switch 12kV |
| tension nominale | 12kV |
| courant nominal | 1250A |
| fréquence nominale | 50/60Hz |
| Série | FZN |
Descriptions de produits du fournisseur
Description
Product Overview
The FZN Series Indoor Solid-Sealed Vacuum Load Break Switch and its combination units integrate vacuum interrupter solid-sealed poles with disconnectors, earthing switches, fuses, and spring operating mechanisms in a compact design. Engineered for 12kV, 3-phase, 50Hz AC power distribution networks, these units are ideal for both ring and radial power supply systems.
They are designed to:
- Make, carry, and break normal rated load currents
- Make load currents and withstand short-circuit currents for specified durations
- Provide overload and short-circuit protection for distribution transformers and other electrical equipment (in combination unit configurations)
With a rated current of up to 1250A, the VL1 series is a pioneering solution in the domestic market, delivering enhanced performance for modern power distribution requirements.
Core Features & Benefits
- Solid-Sealed Vacuum Interrupter Poles: Vacuum interrupters and conductive connections are encapsulated in epoxy resin via a special casting process, ensuring excellent insulation performance and adaptability to harsh, polluted environments. This design also enables the miniaturization of switchgear.
- High Rated Current: Industry-leading 1250A rated current, providing superior capacity for modern power distribution systems.
- Integrated Design: Combines load break switches with disconnectors, earthing switches, and fuses for comprehensive protection and switching functions.
- Flexible Operation: Equipped with manual or motorized spring operating mechanisms, with side-mounted installation for space efficiency.
- Compact & Lightweight: Optimized structure allows for easy integration into switchgear panels, reducing footprint and installation complexity.
- Interoperability: Compatible with the VS2 Series Indoor Solid-Sealed Vacuum Circuit Breakers, enabling seamless assembly in the same switchgear.
Technical Specifications
|
Parameter
|
Unit
|
Load Break Switch
|
Combined Electrical Apparatus
|
|---|---|---|---|
|
Rated Voltage
|
kV
|
12
|
12
|
|
Rated Frequency
|
Hz
|
50
|
50
|
|
Rated Short-Time Power Frequency Withstand Voltage (1 minute)
|
kV
|
42/48
|
42/48
|
|
Rated Lightning Impulse Withstand Voltage (peak value)
|
kV
|
75/85
|
75/85
|
|
Rated Current
|
A
|
1250
|
200
|
|
Rated Making Current
|
A
|
3150
|
|
|
Rated Short-Time Withstand Current (2S)
|
kA
|
20
|
|
|
Rated Peak Withstand Current
|
kA
|
50
|
|
|
Rated Short-Circuit Making Current
|
kA
|
50
|
|
|
Rated Short-Circuit Breaking Current
|
kA
|
31.5
|
Applications
- Urban and industrial power distribution systems
- Ring main units and compact substations
- Distribution transformer protection
- Industrial facilities, commercial buildings, and infrastructure projects
- Compatible with VS2 series vacuum circuit breakers in shared switchgear assemblies
