Essential details
Quantity(pieces):1
Volume:0.53 m³
Size:L(75.6)*W(37.1)*H(188.5) cm
Shipping:Sea freight
Package Description:wooden case
Product Introduction
The 10kV SF₆ gas-filled switchgear belongs to the compact gas-insulated metal-enclosed switchgear (C-GIS), which seals the entire high-voltage main circuit within a metal gas box filled with SF₆ insulating gas. It has the characteristics of small size, high reliability, immunity to environmental influences, and maintenance-free. It is widely used in 10kV distribution systems with limited space and harsh environments.
I. Application Scope
Rated Voltage: 12kV (suitable for 10kV power grid)
Rated Frequency: 50Hz
Applicable Systems: Ring network power supply, dual power supply, single busbar, terminal power supply, etc.
Typical Applications: Underground distribution rooms in cities, renovation of old residential areas, industrial parks, mines, tunnels, subways, wind power / photovoltaic power stations, box-type substations, temporary power supply, etc.
Rated Voltage: 12kV (suitable for 10kV power grid)
Rated Frequency: 50Hz
Applicable Systems: Ring network power supply, dual power supply, single busbar, terminal power supply, etc.
Typical Applications: Underground distribution rooms in cities, renovation of old residential areas, industrial parks, mines, tunnels, subways, wind power / photovoltaic power stations, box-type substations, temporary power supply, etc.
II. Main Technical Parameters
Rated Voltage: 12kV
Rated Current: 630A (standard), some can reach 1250A
Rated Short-Circuit Breaking Current: 20kA / 25kA
Rated Thermal Stability Current (2s/3s): 20kA / 25kA
Rated Dynamic Stability Current: 50kA / 63kA
Insulation Gas: SF₆, rated gas pressure is approximately 0.02～0.05MPa (gauge pressure)
Power Frequency Withstand Voltage: 42kV / 1min
Lightning Impulse Withstand Voltage: 75kV
Gas Box Protection Grade: IP67
Cabinet Protection Grade: IP54 and above
Rated Voltage: 12kV
Rated Current: 630A (standard), some can reach 1250A
Rated Short-Circuit Breaking Current: 20kA / 25kA
Rated Thermal Stability Current (2s/3s): 20kA / 25kA
Rated Dynamic Stability Current: 50kA / 63kA
Insulation Gas: SF₆, rated gas pressure is approximately 0.02～0.05MPa (gauge pressure)
Power Frequency Withstand Voltage: 42kV / 1min
Lightning Impulse Withstand Voltage: 75kV
Gas Box Protection Grade: IP67
Cabinet Protection Grade: IP54 and above
III. Structural Features
1. Fully Enclosed Gas Box Structure
The main circuit (circuit breaker / load switch, busbar, isolation / grounding, transformers, etc.) is sealed in a stainless steel welded gas box filled with SF₆ gas, completely isolating external dust, moisture, salt fog, and condensation.
2. Three-Position Switch Integration
Generally, a three-position switch integration structure of load switch + isolating switch + grounding switch is adopted, with a simple structure and reliable interlock.
3. Clear compartments, high safety
High-voltage gas compartment, low-voltage mechanism compartment, and cable compartment are independently separated.
Built-in pressure release device, fault arc is directed to release.
Complete mechanical interlock, achieving standard "five protections"
4. Small size, flexible layout
The cabinet width is usually 350mm to 500mm, occupying only 1/2 to 1/3 of the traditional KYN28 type switchgear cabinet, especially suitable for underground spaces, box-type substations, etc.
1. Fully Enclosed Gas Box Structure
The main circuit (circuit breaker / load switch, busbar, isolation / grounding, transformers, etc.) is sealed in a stainless steel welded gas box filled with SF₆ gas, completely isolating external dust, moisture, salt fog, and condensation.
2. Three-Position Switch Integration
Generally, a three-position switch integration structure of load switch + isolating switch + grounding switch is adopted, with a simple structure and reliable interlock.
3. Clear compartments, high safety
High-voltage gas compartment, low-voltage mechanism compartment, and cable compartment are independently separated.
Built-in pressure release device, fault arc is directed to release.
Complete mechanical interlock, achieving standard "five protections"
4. Small size, flexible layout
The cabinet width is usually 350mm to 500mm, occupying only 1/2 to 1/3 of the traditional KYN28 type switchgear cabinet, especially suitable for underground spaces, box-type substations, etc.
IV. Performance Advantages
1. Extremely strong environmental adaptability
Not affected by humidity, condensation, dirt, small animals, and can operate stably in harsh environments such as high humidity, coastal areas, and high altitudes.
2. Maintenance-free, high reliability
There is no oxidation or accumulation of dirt inside, and it can be maintained without maintenance for many years under normal use, with a fault rate much lower than that of air-insulated cabinets.
3. Installation is quick, construction period is short
The factory completes overall assembly, gas filling, and testing, and on-site only needs to connect the foundation and cables, significantly shortening the installation and commissioning period.
4. Easy expansion
It can be freely combined into: incoming line cabinet, outgoing line cabinet, ring network cabinet, PT cabinet, metering cabinet, tie cabinet, etc., supporting flexible networking of multiple circuits.
5. Intelligent compatibility
It can be equipped with SF₆ density relays, live display, microcomputer protection, remote measurement and control, on-line monitoring of partial discharge / temperature measurement, and supports unmanned operation.
1. Extremely strong environmental adaptability
Not affected by humidity, condensation, dirt, small animals, and can operate stably in harsh environments such as high humidity, coastal areas, and high altitudes.
2. Maintenance-free, high reliability
There is no oxidation or accumulation of dirt inside, and it can be maintained without maintenance for many years under normal use, with a fault rate much lower than that of air-insulated cabinets.
3. Installation is quick, construction period is short
The factory completes overall assembly, gas filling, and testing, and on-site only needs to connect the foundation and cables, significantly shortening the installation and commissioning period.
4. Easy expansion
It can be freely combined into: incoming line cabinet, outgoing line cabinet, ring network cabinet, PT cabinet, metering cabinet, tie cabinet, etc., supporting flexible networking of multiple circuits.
5. Intelligent compatibility
It can be equipped with SF₆ density relays, live display, microcomputer protection, remote measurement and control, on-line monitoring of partial discharge / temperature measurement, and supports unmanned operation.
V. Common Types
Load Switch Type Gas-Filled Cabinet: mainly composed of load switch + fuse, suitable for general loads, ring network power supply
Circuit Breaker Type Gas-Filled Cabinet: equipped with vacuum circuit breaker, capable of breaking short-circuit current, suitable for important loads, main incoming / outgoing lines
Common Box-Type Gas-Filled Cabinet: multiple compartments share one gas box, more compact, mostly used in box-type substations, small distribution rooms
Load Switch Type Gas-Filled Cabinet: mainly composed of load switch + fuse, suitable for general loads, ring network power supply
Circuit Breaker Type Gas-Filled Cabinet: equipped with vacuum circuit breaker, capable of breaking short-circuit current, suitable for important loads, main incoming / outgoing lines
Common Box-Type Gas-Filled Cabinet: multiple compartments share one gas box, more compact, mostly used in box-type substations, small distribution rooms
VI. Summary of Applicable Scenarios The 10kV SF₆ gas-filled cabinet is an ideal solution for scenarios with limited space, harsh environment and high reliability requirements. It is particularly suitable for replacing traditional ring-main units and some medium-mounted cabinets, and is widely used in urban distribution networks, box-type substations and new energy power stations.