Outdoor RMU Supplier in India | SF6 Ring Main Unit
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Built with advanced vacuum and SF6 technology, this outdoor ring main unit from Arpan Power Projects works as a free-standing unit or inside a mini compact substation. A trusted Outdoor RMU Supplier in India for reliable, leak proof medium-voltage distribution.
Characteristics
- SF6 insulated compact switchgear.
- Robotically welded stainless steel gas tank for leak proof operations.
- Motorised, easy integration with SCADA through FRTU for remote monitoring & control.
- Equipped with SF6 switch disconnector.
- Non extensible, extensible & modular range including metering facilities.
- Certified as per IEC standards.
Technical Data
| Parameter | Specification |
|---|---|
| Rated Voltage | 12 / 24 / 36 kV |
| Rated Current | 630 A |
| Insulation Level | 75 / 95 / 170 (kVp) |
| Lightning Impulse / Power Frequency | 75 / 95 / 170 (kVp), 50 Hz, 28 / 60 / 70 kV / 1 Min |
| Short Circuit Breaking Current | 21 / 26.3 kA |
| Ingress Protection | IP54 |
| Ambient Temperature | -5°C to +40°C |
| Applicable Standard | IS 13118, IEC 62271-200 |
Outdoor RMU Supplier in India – Arpan Power Projects supplies SF6 insulated outdoor ring main units built with advanced vacuum and SF6 technology for open-air medium-voltage networks. The unit can stand on its own at the site, or it can be installed inside a mini compact substation, so it adapts to the layout of your network instead of the other way round.
What Outdoor Conditions Demand from a Ring Main Unit
Rain, dust, humidity and temperature swings are tough on any switchgear left outside. A ring main unit placed outdoors needs live parts that stay protected from all of this, which is why a good Outdoor RMU Supplier in India will always start the conversation with the enclosure and the gas tank. In an SF6 insulated design, the live parts sit inside a sealed tank filled with sulfur hexafluoride (SF6) gas, away from the weather. In our unit the tank is robotically welded stainless steel for leak proof operation, which helps keep the insulation intact.
Free-Standing or Inside a Mini Compact Substation
You can use this unit in two ways. As a free-standing unit, it is placed directly at the site on its own base, which suits ring networks along roads, campuses and industrial estates. Installed inside a mini compact substation, it becomes part of a complete package with the transformer and low voltage side, which cuts down site work. If you need that complete package, take a look at our Compact Sub Station.
Remote Monitoring Through SCADA
The unit is motorised, which makes integration with SCADA through FRTU straightforward. Operators can monitor the unit and operate it remotely from the control room, so they do not have to travel to a distant outdoor site for every switching operation. This saves time and keeps people away from live equipment during switching.
Outdoor RMU vs Indoor RMU: What Changes
- Enclosure: an outdoor unit needs a weather-resistant enclosure, while an indoor unit relies on the building for protection.
- Placement: an outdoor unit stands free or sits inside a mini compact substation, while an indoor unit goes into a switch room.
- Remote access: motorised SCADA integration matters most at outdoor sites that are far from the control room.
- Space: an outdoor installation does not need a separate switch room.
If your ring main unit will sit inside a building, see our Indoor Ring Main Unit instead.
Where This Unit Is Installed
Typical sites include utility distribution networks, industrial estates, residential and commercial layouts, solar and wind project feeders, and infrastructure projects where a ring network feeds several transformers.
Before You Order: Four Quick Questions
- Will the unit stand alone or go inside a mini compact substation?
- Do you need SCADA connectivity?
- What voltage and current does your ring network need?
- How many cable feeders and transformer feeders do you need?
Send the answers to your Outdoor RMU Supplier in India and our team will suggest a suitable configuration for your site.
Why Choose Arpan Power Projects as Your Outdoor RMU Supplier in India
Arpan Power Projects combines dependable HT switchgear with practical technical guidance, from choosing the configuration to supporting you through commissioning. If your network also needs ring main units at specific voltage levels, you can look at our 11KV RMU and 33KV RMU pages, or browse the complete RMU (Ring Main Unit) range.
Quick Answers About Outdoor RMU
Does the outdoor RMU need a separate switch room?
No. It is designed for outdoor use, either as a free-standing unit or installed inside a mini compact substation.
How does the SCADA connection work?
The motorised unit integrates with SCADA through FRTU, so you can monitor and operate it remotely.
Why is the gas tank made of stainless steel?
The robotically welded stainless steel tank is designed for leak proof operation, which keeps the SF6 gas sealed inside.
Can I use an outdoor unit inside a building?
For indoor rooms we recommend our Indoor Ring Main Unit, which is designed for that setting.
Are you an Outdoor RMU Supplier in India for projects across the country?
Yes. Arpan Power Projects supplies across India. Share your site location and requirement with us for a quotation.
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