RNV-B1-12 GIS Sf6 Break Switch Circuit Breaker for Gas Insulated Switchgear
Key attributes
| Brand | Switchgear parts |
| Model NO. | RNV-B1-12 GIS Sf6 Break Switch Circuit Breaker for Gas Insulated Switchgear |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Rated frequency | 50Hz |
| Series | RNV-B1 |
Product descriptions from the supplier
The RNV-B1-12 SF6 circuit breaker switch is mainly used in 12KV/630 SF6 gas filling cabinets. As the main component of the gas filling cabinet, it undertakes the main function and has the rated current and load current for opening and closing; Performance such as closing and breaking short-circuit currents.
This series of products will be shipped after passing the full inspection and comply with the relevant requirements of GB1984-89 and GB/T1984-2014 AC high-voltage circuit breakers.
Model description
Product Parameters
Serial Number |
Item |
Unit |
Parameter |
Remark |
1 |
Rated Voltage |
kV |
12 |
|
2 |
Rated Frequency |
Hz |
50 |
|
3 |
Rated Current |
A |
630 |
|
4 |
Rated Short-time Withstand Current |
kA/s |
20/4, 25/3 |
|
5 |
Rated Peak Withstand Current |
kA |
50/63 |
|
6 |
Rated Short-circuit Making Current |
kA |
50/63 |
|
7 |
Rated Cable Charging Breaking Current |
A |
20/25 |
|
8 |
Short-circuit Current Breaking Times |
times |
30 |
|
9 |
1min Power Frequency Withstand Voltage |
kV |
42/48 |
In SF6 Gas |
10 |
Lightning Impulse Withstand Voltage |
kV |
75/85 |
In SF6 Gas |
11 |
Mechanical Life |
times |
10000 |
|
12 |
Main Circuit Resistance |
μΩ |
≤65 |
With Disconnector |
13 |
Phase-to-phase Center Distance |
mm |
150 |
installation dimensions
The core advantages focus on four dimensions: GIS adaptability, insulation reliability, function integration and intelligent operation and maintenance: ① Exclusive GIS adaptation: The installation size is precisely matched with the switch compartment of mainstream 12kV GIS cabinets, no cabinet structure modification is required, and the modular design supports quick plug-and-play replacement, greatly shortening maintenance time; ② Reliable insulation and arc-extinguishing: SF6 gas insulation strength is 2-3 times that of air, with fast arc-extinguishing speed and zero arcing breaking, adapting to the sealed and compact operating environment of GIS, without creepage or flashover risks; ③ Highly integrated functions: Integrates load breaking, short-circuit protection and isolation functions, eliminating the need for separate fuses and isolation switches, simplifying the internal wiring of the GIS cabinet and reducing the overall equipment cost
It is a compact break switch circuit breaker specially designed for 12kV gas insulated switchgear (GIS), integrating three core functions: load current breaking, short-circuit fault protection and circuit isolation, with SF6 gas as the insulation and arc-extinguishing medium. This model has a highly integrated structure, with a volume only 1/4 of that of traditional open-type circuit breakers, and can be directly embedded in the switch module of the GIS cabinet, realizing precise position switching through mechanical interlock. It has fast tripping capability, can effectively cut off rated load current and short-time short-circuit current, adapts to the power distribution needs of GIS complete sets of equipment in smart substations and urban power grids, and is a core switch component to ensure the safe and stable operation of the GIS system.
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