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Switchgear & Control
Gas-Insulated Switchgear (GIS / RMU)
SKU: 12KV_GAS_INSULATED_SWITCHGEAR_RING_MAIN_UNIT_RMU
XinHuan 12Kv Gas Insulated Switchgear Ring Main Unit Rmu (IEC / GB Certified)
Factory-direct gas insulated switchgear ring main unit rmu engineered for utility distribution and industrial power projects. 100% factory routine and type tested with fast global delivery.
Compliance Standards
IEC • ANSI • IEEE • GB
Quality Inspection
100% FAT Routine Tested
Engineering CAD
2D CAD / SLD Schematics
Global Logistics
Direct Seaport CIF Export
Engineering Datasheet
Technical Parameters & Ratings
| Rated Voltage | 12 kV / 24 kV |
|---|---|
| Rated Frequency | 50 Hz / 60 Hz |
| Rated Normal Current (Busbar) | 630 A / 1250 A |
| Rated Normal Current (Feeder/Breaker) | 630 A |
| Short-Time Withstand Current (4s) | 20 kA / 25 kA (4s) |
| Peak Withstand Current | 50 kA / 63 kA (Ip) |
| Power Frequency Withstand Voltage (1min) | 42 kV (phase-to-earth) / 48 kV (isolating distance) |
| Lightning Impulse Withstand (BIL) | 75 kV / 95 kV / 125 kV peak |
| Gas Tank Ingress Protection | IP67 (Gas Tank) / IP4X (Outer Enclosure) |
| Outer Enclosure Protection | IP4X Indoor / IP54 Outdoor Option |
| Insulation Medium | SF6 Gas / Eco-Friendly Gas Optional |
| Annual Leakage Rate | < 0.1% per year (30+ Year Maintenance-Free Design) |
| Operating Temperature Range | -40°C to +50°C |
| Modular Functional Units | C (Load Break Switch), V (Vacuum Circuit Breaker), F (Switch-Fuse), CVC, CCV, CCF, CCC |
| Standards Compliance | IEC 62271-200, GB/T 3906 |
Application Scenarios
- Wind & solar PV renewable collector substations, urban underground distribution vaults, commercial high-rises, and industrial plant ring feeds.
Features
- Hermetically sealed 3.0mm 304 stainless steel gas tank protects all live high-voltage components against flooding, humidity, dust, and aggressive industrial fumes (IP67).
- Modular flexibility supporting extensible and compact non-extensible configurations (CVC, CCV, CCF, V, C, F) for smart ring distribution networks.
- Maintenance-free vacuum circuit breaker (VCB) and 3-position disconnect/earthing switch with mechanical interlocks for foolproof operator safety.
Standards
- Type-tested to IEC 62271-200:2021 with certified routine test reports (FAT), gas tightness certification, and 100% X-ray weld inspection.
Engineering Submittal & Layout Workbench
Substation Room Fit & Multi-Equipment CAD Footprints
Select your equipment type and capacity to inspect verified GA engineering CAD line drawings, Single Line Diagrams (SLD), dimensions (L × W × H), roller gauge, and submittal clearances before procurement.
Available Ratings:
11kV / 33kV Dual Voltage
IEC 60076 / IEEE Compliant
100% Routine Factory Tested
Export Nitrogen / Seaworthy Pack
1000 kVA Technical Dimensions
IEC 60076-1International utility & industrial submittal specifications
| Overall Length (L) | 1,750 mm |
|---|---|
| Overall Width (W) | 1,120 mm |
| Overall Height (H) | 1,780 mm |
| Roller Wheel Track Gauge (D) | 820 mm |
| Total Equipment Net Weight | 3,820 kg |
| Min Substation Clearance | 1,000 mm surrounding |
| Rated Voltage / System | 11 kV / 33 kV Dual Primary |
| Applicable Standard | IEC 60076-1 / IEEE C57 |
Download Technical Data Sheet (PDF)
Request Factory Engineering Submittal Package
Full CAD DXF/DWG vector footprints, 3D STEP models, and custom project submittals provided within 2 hours upon request.
XinHuan Hefei Manufacturing Plant — Precision Winding & Assembly Line
Factory Build Quality
Internal Construction & Premium Materials
Built with tier-1 certified raw materials engineered for long operational life (>30 years), superior dielectric withstand, and high short-circuit withstand capacity.
Silicon Steel Core
High-grade grain-oriented cold-rolled silicon steel with step-lap mitered joints for low $P_o$ losses.
100% Copper Windings
Electrolytic oxygen-free copper with high thermal grade insulation for surge resistance.
Precision Tap Changer
De-energized tap switch ($\pm 2 \times 2.5\%$) or on-load vacuum tap changer (OLTC) optional.
Protection & Sensors
Buchholz gas relay, magnetic oil gauge (MOG), and dial thermometers with alarm contacts.
Quality Assurance
CNAS & ISO 9001 Certified
100% Factory Acceptance Testing (FAT) Protocol
Every transformer unit manufactured by XinHuan undergoes mandatory routine factory testing prior to container dispatch. Full certified routine and type test submittal reports are provided with commercial documentation:
1. Insulation Resistance
Megger test (HV to LV, HV to Earth, LV to Earth) >1000 MΩ.
2. Voltage Ratio & Vector
Turns ratio check across all taps with phase displacement check.
3. Winding DC Resistance
Precision Kelvin bridge measurement across all tap positions.
4. Short-Circuit Impedance
Load loss ($P_k$) measurement corrected to reference temp (75°C).
5. No-Load Loss & Current
Core excitation test ($P_o$ and $I_o$) at rated sinusoidal voltage.
6. AC Voltage Withstand
Power-frequency separate source test (e.g. 50kV/70kV 1 min).
7. Lightning Impulse (BIL)
Full wave & chopped wave impulse withstand (BIL up to 170kV).
8. Partial Discharge & Seals
Ultra-low discharge (<5 pC) and pressurized oil/gas tightness test.
Logistics Intelligence
Global CIF / FOB Delivery
Export Packaging & Seaport Logistics
Export seaworthy packaging with nitrogen pre-charge, moisture-proof barrier, and reinforced steel-frame containment. Typical production lead time: 4–6 weeks from drawing approval.
Production Lead Time
Standard manufacturing cycle is 4 to 6 weeks from approval of GA blueprints and single-line diagrams.
Heavy-Duty Export Packaging
Vacuum moisture barrier preservation, nitrogen blanketing, and reinforced steel-frame structural crate skids.
Direct Seaport Routes
Fast ocean freight to Port of Chancay & Callao (25-35 days), Manila, Lagos, and Middle East ports.
Equipment Video Inspection
100% TestedWatch XinHuan technicians perform routine dielectric testing, winding insulation checks, and quality inspections inside our Hefei manufacturing plant.
Every unit 100% routine tested before container loading.
Direct Factory Consultation
Need Custom Project Engineering?
Send your single-line diagram (SLD), voltage ratings, or tender specifications. Our chief electrical engineers will review and issue an actionable CIF quotation within 24 hours.
Custom Voltage Ratios
High-Altitude Derating
Short-Circuit Impedance
Third-Party FAT Witness
Engineering & Procurement FAQs
Frequently asked questions regarding specifications, certifications, and delivery for XinHuan 12Kv Gas Insulated Switchgear Ring Main Unit Rmu (IEC / GB Certified).
Please specify rated capacity (kVA), primary/secondary voltages, frequency (50/60Hz), standard (IEC/ANSI), cooling type, site altitude, and target destination port.
Manufactured and type-tested in accordance with IEC 62271-200:2021, IEC 62271-100, and GB/T 3906. Certified factory routine test report (FAT) and SF6 pressure inspection certificate supplied with every unit.
Standard manufacturing lead time is 4 to 6 weeks following approval of GA blueprints and single-line diagrams. Direct sea container shipping is available under FOB, CFR, or CIF terms with full customs documentation (Bill of Lading, Certificate of Origin, Test Reports).