TRXGN-12 Air (Environmentally Friendly Gas) Insulated Ring Main Unit
Product Model
Technical Parameters
|
Project |
Unit |
Circuit Breaker Unit |
Load Switch Unit |
|
|
Rated Voltage |
kV |
12 |
||
|
Rated Frequency |
Hz |
50 |
||
|
Rated Current |
A |
630 |
||
|
1min Power Frequency Withstand Voltage |
Ground, Phase-to-Phase |
kV |
42 |
|
|
Between the Breaks |
48 |
|||
|
Lightning Impulse Withstand Voltage |
Ground, Phase-to-Phase |
kV |
75 |
|
|
Between the Breaks |
85 |
|||
|
Rated Short-Time Withstand Current and Duration |
Main Circuit |
kA |
20/4s |
|
|
Grounding Circuit |
17.4/2S |
|||
|
Rated Peak Withstand Current |
Main Circuit |
kA |
50 |
|
|
Grounding Circuit |
43.5 |
|||
|
Rated Short-Circuit Making Current (Peak Value) |
kA |
50 |
||
|
Rated Short-Circuit Breaking Current |
kA |
20 |
/ |
|
|
Rated Short-Circuit Breaking Current Making Times |
Times |
30 |
/ |
|
|
Rated Operation Sequence |
|
O-0.3S-CO-180S-CO |
|
|
|
Rated Cable/Line Charging Breaking Test |
|
C2级 |
/ |
|
|
Asymmetrical Phase-to-ground Fault Breaking Current |
kA |
17.4 |
/ |
|
|
Rated Active Load Breaking Current |
A |
/ |
630 |
|
|
Rated Closed-Loop Breaking Current |
A |
/ |
630 |
|
|
Rated Cable Charging Breaking Test |
A |
/ |
10 |
|
|
5% Rated Active Load Breaking Current |
A |
/ |
31.5 |
|
|
Number of Grounding Switch Closing |
|
5 |
||
|
Loop Resistance |
uΩ |
≤140 |
||
|
Rated Gas Pressure (Gauge Pressure at 20℃) |
Mpa |
0.02 |
||
|
Mechanical Life |
Vacuum Circuit |
Times |
10000 |
|
|
Isolation Switch |
3000 |
|||
|
Grounding Switch |
3000 |
|||
|
Protection Level |
Casing Gas Tank |
IP4X |
||
|
IP67 |
||||
|
Operating Power Supply |
V |
AC220/DC220/DC110/DC48/DC24 |
||
|
Rated Annual Leakage Rate |
% |
≤0.1 |
||
|
Cabinet Size (Single Circuit) |
mm |
420×822×1420 |
||
|
Withstand Internal Arc Fault |
kA/s |
20/0.5 |
||
|
Moisture Content in Dry Air |
ppm |
≤150 |
||
Vacuum Switch Mechanical Characteristics Parameters
|
Project |
Unit |
Circuit Breaker Unit |
Load Switch Unit |
|
Contact Opening Distance |
mm |
8±1 |
|
|
Contact Overtravel |
3.5±1 |
||
|
Average Opening Speed (6mm after opening) |
1.2±0.2 |
||
|
Average Closing Speed (6mm before closing) |
0.8±0.2 |
||
|
Contact Bounce Time at Closing |
≤2 |
||
|
Three-Phase Synchronization of Closing |
≤2 |
||
|
Three-Phase Synchronization of Opening |
ms |
≤2 |
|
|
Closing Time |
|
30-70 |
≤900 |
|
Opening Time |
|
18-50 |
|
|
Phase-to-Phase Distance |
mm |
150±1.5 |
|
|
Contact Bounce Amplitude at Opening |
mm |
≤1.5 |
|
|
Contact Overtravel Amplitude at Opening |
mm |
≤2 |
|
|
Rated Contact Pressure |
N |
1600±160 |
1100±100 |
Isolating and Grounding Switch Main Technical Parameters and Characteristic Parameters
|
Item |
Unit |
Isolating Switch |
Grounding Switch |
|
|
Rated Voltage |
kV |
12 |
||
|
Rated Frequency |
Hz |
50 |
||
|
Rated Current |
A |
630 |
||
|
1min Power Frequency Withstand Voltage |
Between Phases and to Ground |
kV |
42 |
|
|
Across the Break |
48 |
|||
|
Lightning Impulse Withstand Voltage |
Between Phases and to Ground |
kV |
75 |
|
|
Across the Break |
85 |
|||
|
Rated Short-Time Withstand Current and Duration |
kV |
20/4s |
||
|
Rated Peak Withstand Current |
kV |
50 |
||
|
Mechanical Life |
Times |
3000 |
||
|
Contact Pressure |
N |
160±20 |
||
|
Manual Closing Operation Force |
N |
≤200 |
||
|
Manual Opening Operation Force |
N |
≤200 |
||
|
Dynamic and Static Contact Opening Distance |
mm |
≥100 |
100 |
|
|
Phase-to-Phase Distance |
mm |
150±1.5 |
||
|
Synchronization of Grounding Switch Closing |
ms |
/ |
≤2 |
|
Product Functions
The primary function of this switchgear is to ensure the safe, controlled, and reliable reception and distribution of electrical energy in three-phase AC power systems. It provides essential circuit protection, control, and isolation within distribution networks. Integrating key components like vacuum circuit breakers, it manages power flow effectively to enhance system stability and safety for various connected loads and secondary substations.
Applicable Environment
This equipment is designed for indoor installation in controlled environments that meet standard specifications. It is ideally deployed in small secondary substations, industrial and mining enterprises, urban residential complexes, airports, railways, and high-rise buildings. It operates reliably within an ambient temperature range of -40°C to +40°C, at altitudes up to 2000 meters, and in areas free from excessive dust, corrosive gases, or severe condensation.
Product Highlights
◆Green and Sustainable Design: Embraces an environmentally conscious philosophy, aligning with the industry trend towards SF6-free equipment to minimize ecological impact.
◆Compact and Cost-Effective: Features a rational and space-saving design with a small physical footprint, offering high reliability and value through easy installation and maintenance.
◆Safe and Reliable Performance: Ensures a dependable power supply with robust construction, fully compliant with stringent Chinese national (GB) and power industry (DL) standards.
◆Versatile and Flexible Application: Adaptable for a wide range of uses from smart grids to industrial load centers, thanks to a design that supports flexible configuration and straightforward operation.
◆Advanced and Proven Technology: Developed by integrating advanced international design concepts with extensive field experience from power distribution network services.