316L nano-ceramic enclosure with 50kA withstand ensures maintenance-free reliability for compact networks.
All HV components enclosed in welded 316L tank eliminate moisture, dust, and pollution ingress; SF6 insulation strength 3× air enables compact design unaffected by altitude, humidity, or corrosive atmospheres.
±0.1mm tolerance via industrial robots ensures ≥99.5% dimensional accuracy and ≥99% part standardization; German electrostatic water-based paint achieves ≤5μm uniformity and 0.3% defect rate for zero-maintenance appearance.
Supports ABB, Siemens, Schneider, and domestic ZN85 breakers without tank modification; pre-validated interfaces maintain full type-test validity and enable lifecycle cost optimization.
Independent pressure relief ducts per compartment, mechanical/electrical "five-prevention" interlocks, and IP4X/IP2X protection even with door open; validated through dielectric withstand and ≥20,000 mechanical life tests per IEC 62271.
SF6 arc extinction capability 100× air enables rapid fault clearing and frequent switching operations; 50kA breaking capacity validated for high-stress industrial and renewable grid connections.
Helium mass spectrometry confirms <0.1%/year SF6 leak rate on every tank; gas tightness test documented per IEC 62271-203 to validate 30-year maintenance-free operation.
Salt spray and thermal cycling test reports referenced to actual batch samples; coating thickness and adhesion measured per ISO 12944 to confirm C5-M/CX environment suitability.
Dielectric withstand, 50kA short-time current, and 20,000-cycle mechanical endurance tested in CNAS-accredited lab; reports traceable to IEC 62271-1/203 and GB/T 3906.
Interface compatibility verified for each supported breaker/disconnector model; interlock timing and clearance measurements documented to ensure safe operation regardless of selected primary device.
|
Name |
Unit |
Load switch unit |
Combined electrical unit |
Circuit breaker unit |
||
|
Rated voltage |
kV |
|
12/24 |
|
||
|
Rated frequency |
Hz |
|
50/60 |
|
||
|
Rated current |
A |
630 |
≤125 |
630/1250 |
||
|
Rated insulation level |
1-minute power frequency withstand voltage |
power frequency withstand voltage (phase-to-phase and phase-to-ground) |
kV |
|
42/65 |
|
|
power frequency withstand voltage (inter-break) |
|
48/79 |
|
|||
|
lightning impulse withstand voltage (peak) |
power frequency withstand voltage (control and auxiliary circuits) |
|
2/2 |
|
||
|
lightning impulse withstand voltage (phase-to-phase and phase-to-ground) |
|
75/125 |
|
|||
|
lightning impulse withstand voltage (inter-break) |
|
85/145 |
|
|||
|
Rated short-time withstand current |
main circuit/4s |
kA |
20/20 |
|
20/25 |
|
|
Ground circuit/4s |
20/20 |
|
|
|||
|
Ground connection circuit/4s |
17.4/17.4 |
|
17.4/21.7 |
|||
|
Rated peak withstand current |
main circuit |
KA |
50/50 |
|
50/63 |
|
|
ground circuit |
43.5/43.5 |
|
43.5/54.5 |
|||
|
Rated short-circuit making current |
kA |
50 |
80 |
50/63 |
||
|
Rated short-circuit breaking current |
A |
|
31.5 |
20/25 |
||
|
Rated transfer current |
A |
|
1500/1400 |
|
||
|
Rated active load breaking current |
A |
630 |
|
|
||
|
Rated closed-loop breaking current |
A |
630 |
|
|
||
|
Rated cable charging breaking current |
A |
10/25 |
|
|
||
|
Mechanical life |
load switch/earthing switch |
|
5000 |
5000 |
10000 |
|
|
isolating switch/earthing switch |
batch |
2000 |
2000 |
3000 |
||
|
SF6 gas rated pressure(relative value at 20°C) |
Rated filling pressure |
Mpa |
|
0.04 |
|
|
|
Minimum functional level pressure |
|
|
0.02 |
|
||
|
Protection level |
Sealed enclosure |
|
|
IP67 |
|
|
|
Switchgear enclosure |
|
|
IP4X |
|
||
|
Annual relative gas leakage rate |
|
%/Y |
|
≤0.01 |
|
|
|
Number |
Item |
|
Unit |
Load switch unit |
Combined electrical unit |
Circuit breaker unit |
|
1 |
Rated voltage |
kV |
40.5 |
40.5 |
40.5 |
|
|
2 |
Rated frequency |
Hz |
50 |
50 |
50 |
|
|
3 |
Rated current |
A |
630 |
63 |
630 |
|
|
|
Rated insulation level |
1-minute power frequency withstand voltage (phase-to-phase, to ground) |
kV |
95 |
95 |
95 |
|
|
1-minute power frequency withstand voltage (across the isolating fracture) |
kV |
118 |
118 |
118 |
|
|
4 |
1-minute power frequency withstand voltage (control and auxiliary circuits) |
kV |
2 |
2 |
2 |
|
|
|
Lightning impulse withstand voltage (phase-to-ground) |
kV |
185 |
185 |
185 |
|
|
|
Lightning impulse withstand voltage (across the isolating fracture) |
kV |
215 |
215 |
215 |
|
|
5 |
Rated short-circuit breaking current |
kA |
|
20 |
20 |
|
|
6 |
Rated short-time withstand current (main switch/earthing switch) |
kA |
20/20 |
|
20/20 |
|
|
7 |
Rated short-circuit duration |
S |
3 |
|
3 |
|
|
8 |
Rated peak withstand current (main switch/earthing switch) |
kA |
50/50 |
|
50/50 |
|
|
9 |
Rated short-circuit making current (main switch/earthing switch) |
kA |
50/50 |
|
50/50 |
|
|
10 |
Rated number of short-circuit closings (main switch/earthing switch) |
次 |
3/2 |
|
|
|
|
11 |
Rated transfer current |
A |
|
750 |
|
|
|
12 |
Rated active load breaking current |
A |
630 |
|
|
|
|
13 |
Internal arc test level |
|
|
IAC级AFL 20kA/0.5s |
|
|
|
|
Mechanical life |
Circuit breaker (M2) class |
|
|
|
10000 |
|
14 |
Load switch (M2) class |
次 |
5000 |
5000 |
|
|
|
|
Grounding switch (M1) class |
次 |
3000 |
3000 |
3000 |
|
|
15 |
Inflation Pressure |
Rated Inflation Pressure (gauge pressure at 20°C) |
bar |
|
1.4 |
|
|
|
Minimum Inflation Pressure (gauge pressure at 20°C) |
bar |
|
1.2 |
|
|
|
16 |
Annual relative gas leakage rate |
|
%/年 |
|
0.01 |
|
|
17 |
SF6 gas moisture content (ambient temperature 20°C) |
|
ppm |
|
≤500 |
|
|
|
Protection level |
Gas box |
|
|
IP67 |
|
|
18 |
Sealed box |
|
|
IP67 |
|
|
|
|
Switchgear housing |
|
|
IP3X |
|
|
ABB/Siemens/Schneider for global specs or ZN85 for cost efficiency; all pre-validated for tank interface and interlock coordination without re-engineering.
Standard 6–33kV ratings, 630–4000A busbar, 31.5/50kA breaking; custom configurations available based on verified type-test data for unique grid requirements.
Nano-ceramic + German paint for C5-M/CX zones; anti-condensation heaters and IP23D ventilation for humid/tropical sites; low-temperature lubricants for -40°C operation.
Embedded sensors for gas density, temperature, and partial discharge; Modbus/IEC 61850 communication; optional motorized operating mechanisms and remote position indication.
RAL color matching, bilingual labels, QR-coded digital manuals; custom compartment layouts for special relay, metering, or arc-flash protection requirements.
Dedicated handling tools included; spare parts kits tailored to primary apparatus brand; extended warranty packages backed by 80+ country service network.
Optional electrical interlocks for remote operation verification; arc-flash detection systems with <10ms trip response; enhanced mechanical locks for high-security facilities.
Tell us your project requirements—voltage level, environment, grid code, or delivery timeline—and we’ll provide a compliant, optimized solution.
EN