Space-Saving Design
Smart Monitoring
Reliable Switching
Outdoor Protection
Long-Term Reliability
35kv Ring Main Unit
- Compact & Flexible
- Fast Fault Isolation
- Arc-Resistant Safety
- Smart Grid Ready
- Low Maintenance Design
Product Overview
The Ring Main Unit (RMU) is a compact, fully enclosed medium-voltage switchgear designed for urban, industrial, and utility networks. It ensures reliable power distribution, fast fault isolation, and safe operation in ring or radial network configurations. The RMU is ideal for overhead or underground distribution systems, providing flexibility for modern power grids and renewable energy integration.
Key Features
Technical Parameter
| Item | Specification |
| Rated Voltage | 24-33 kV |
| Rated Current | 630–2500 A |
| Short-Circuit Withstand | 16–25 kA |
| Frequency | 50 Hz / 60 Hz |
| Switching Device | Vacuum / SF₆ |
| Busbar | Single / Double |
| Standard | IEC / IEEE |
| Brand | HONCON |
Standards & Compliance
Manufactured according to:
- IEC 62271-200 – Metal-enclosed MV switchgear
- IEC 60044 / 61869 – CT & VT
- IEC 60099 – Surge arresters (optional)
- Arc Classification AFL / AFLR (optional)
- ISO 9001 / 14001 / 45001
Configuration Options
- Voltage Levels: 6/10/11/20/24/33/35 kV
- Main Components:
- VCB or LBS
- Disconnector & earthing switch
- CT/VT metering
- Protection relays
- Enclosure: Powder-coated steel / stainless steel
- Protection Level: IP3X–IP54
- Installation: Single busbar / double busbar / sectionalized systems
- Cooling: Natural ventilation or forced air
FAQ
Q1: What is the MOQ of the order?
A1: One set.
Q2: Do you support custom voltage or capacity?
A2: Absolutely. We can design transformers according to your project specifications.
Q3: How long is your delivery time?
A3: It depends on the order quantity and generally it takes about 25-30days after the deposit is received.
Q4: Which market do you usually sell?
A4: Middle East, Africa, Europe, Asia, etc.
Q5: How long is the warranty?
A5: Within 12 months from sale date.