Maintenance-Free solid insulated switchgear Ensuring Stable Power
Key attributes
| Brand | ROCKWILL |
| Model NO. | Maintenance-Free solid insulated switchgear Ensuring Stable Power |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Series | QGG |
Product descriptions from the supplier
Description：
Breakthrough innovation is achieved through technology integration. Combining the product development experience of air-insulated switchgear and gas-insulated switchgear, the QGG Series Solid Insulated Switchgear has been developed, which represents a major breakthrough in the field of medium-voltage technology and features high operational safety. As a core unit of the power distribution network, it is applied in power distribution networks. It adopts a vacuum interrupter for arc extinction, and its high-voltage live parts are molded from solid insulating materials with excellent insulating performance (epoxy resin materials), eliminating the air chamber with a pressure of 0.03Mpa and realizing full insulation, full sealing, and maintenance-free operation. The QGG Series Solid Insulated Switchgear is equipped with an intelligent online monitoring system, which monitors the status of key components inside the switchgear in real time, acquires status parameters, automatically evaluates the possibility of faults, and provides strong protection for the normal operation of the switchgear and the entire power distribution line. After years of dedicated R&D, the solid insulated switchgear has formed IV product series, each with its own unique characteristics.
Feature
Technological Breakthrough in Medium-Voltage Field
High Operational Safety
Full Insulation, Full Sealing & Maintenance-Free
Intelligent Real-Time Monitoring
Diversified Product Series
Typical Applications
The QGG series solid insulated switchgear is a green and environmentally friendly solid insulated switchgear that has undergone type testing and is suitable for various distribution systems, including under extremely harsh environmental conditions, such as:
Substations：User substations, substations and switching stations for power systems and public facilities.
Industrial Field：Wind power stations, high-rise buildings, airports, open-pit coal mines, subway stations, sewage treatment plants, port facilities, traction power supply systems, automotive industry, petroleum industry, chemical industry, cement industry, thermal power plants, textile industry, paper industry, and emergency power supply systems.
Product Parameters
Item |
Unit |
Parameter |
Rated short-time withstand current |
kA/s |
20/4(25/4) |
Rated peak withstand current |
kA |
50(63) |
Load Switch Unit |
||
Rated current |
A |
630 |
Rated short-circuit making current |
kA |
50 |
Rated short-time withstand current |
kA/s |
20/4 |
Mechanical life of load switch |
times |
M2 10000 |
Mechanical life of three-position disconnector |
times |
M1 3000 |
Electrical life of load switch |
times |
E2 100 |
Circuit Breaker Unit |
||
Rated current |
A |
630 (1250) |
Rated short-circuit breaking current |
kA |
20(25) |
Rated short-circuit making current |
kA |
50(63) |
Rated short-time withstand current |
kA/s |
20/4(25/4) |
Mechanical life of circuit breaker |
times |
M2 10000 |
Mechanical life of three-position disconnector |
times |
M1 3000 |
Electrical life of circuit breaker |
times |
E2 |
Rated operation sequence |
0 - 0.3s - CO - 180s - CO |
|
Load Switch-Fuse Combination Unit |
||
Rated current (maximum) |
A |
200 |
Rated short-circuit breaking current |
kA |
31.5 |
Rated short-circuit making current |
kA |
80 |
Rated transfer current |
A |
3150 |
Standards
QGGThe QGG series solid insulated switchgear meets the following standards and specifications:
GB 1984-2003:High Voltage AC Circuit Breakers
GB 3906-2006: 3.6kV~40.5kVAC Metal-Enclosed Switchgear and Controlgear
GB 1985-2004:High Voltage AC Isolators and Earthing Switches
GB 3804-2004: 3.6KV~40.5KVHigh Voltage AC Load Switches
GB 16926-2009:High Voltage AC Load Switch-Fuse Combination Apparatus
GB/T 11022-1999:Common Technical Requirements for High Voltage Switchgear and Controlgear Standards IEC 60529: Degree of Protection Provided by Enclosures (IP Code)
DL/T 1586-2016: 12kVSolid Insulated Metal-Enclosed Switchgear and Controlgear
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