IEC 62271 Certified | MV Power Distribution Equipment Manufacturer

Ring Main Unit & Dry-Type
Transformer Solutions

  • Power distribution reliability compromised by aging switchgear and frequent outages?
  • Need compact, maintenance-free SF6 ring main units for urban/suburban grid applications?
  • Looking for energy-efficient dry-type transformers meeting IEC standards for indoor installation?

Professional medium voltage power distribution equipment: SF6 gas-insulated ring main units (RMU), 11kV/24kV/36kV switchgear, and cast resin dry-type transformers (SCB series). Compact modular design, maintenance-free operation, 30+ year service life. IEC 62271, IEC 60076, and ISO 9001 certified. Applications: urban power grid, industrial parks, data centers, wind/solar substations, and commercial buildings. Free technical consultation and quote in 12 hours.

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CE Certified
ISO 9001:2015
15+ Years Export

Common Equipment Challenges — Solved

We understand what goes wrong on real jobsites. Every PowerGridRMU machine is engineered to eliminate these problems.

Aging Power Distribution

Conventional breakers trip and stall on heavily reinforced power. Equipment costs eat your profit margin.

Solution: 22/30KW Industrial Wire Saw cuts through any rebar density — unlimited depth, minimal contact wear.

Insufficient Grid Capacity

Underpowered equipment slows production. You need machines that deliver rated power consistently on 380V jobsites.

Solution: 26KW 11kV Compact RMU — full power output even under continuous load, 830mm max distribution depth.

High Consumable Costs

Low-quality industrial segments and wire rope wear fast. Frequent replacement = frequent downtime.

Solution: In-house developed industrial wire rope — 40% longer service life, lower cost per cubic meter cut.

Long Delivery Times

Waiting 30-60 days for equipment? Every idle day costs you thousands in project delay penalties.

Solution: 7-15 day standard delivery from our Tianjin factory. OEM orders in 15-25 days. We keep core models in stock.

Core Equipment Lineup

4 purpose-built machines covering 90% of power distribution and drilling applications. All models CE certified, factory-direct pricing.

SF6 Gas-Insulated Ring Main Unit - PowerGridRMU

SF6 Gas-Insulated Ring Main Unit

3-6 way modular|630A/1250A busbar|20kA/3s short-time|Stainless steel tank|IP67

Power
Up to 1250A
Cutting Depth
20kA/3s
Voltage
11kV/24kV/36kV
Speed
Maintenance-free
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11kV Compact Ring Main Unit - PowerGridRMU

11kV Compact Ring Main Unit

2-4 way|SF6 load break switch|Vacuum circuit breaker|Motorized option|SCADA ready

Power
630A
Cutting Depth
20kA/3s
Voltage
11kV
Speed
Motorized remote
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24kV/36kV Ring Main Unit - PowerGridRMU

24kV/36kV Ring Main Unit

3-5 way|Gas-insulated|Internal arc classified IAC AFL|IEC 62271-200|Compact footprint

Power
630A/1250A
Cutting Depth
25kA/1s
Voltage
24kV/36kV
Speed
IAC AFL rated
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SCB Cast Resin Dry Transformer - PowerGridRMU

SCB Cast Resin Dry Transformer

100-2500kVA|HV:3-35kV|LV:0.4kV|Class F/H insulation|AN/AF cooling

Power
100-2500kVA
Cutting Depth
HV 3-35kV
Voltage
LV 0.4kV
Speed
Natural/Air forced
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SGB Non-Encapsulated Dry Transformer - PowerGridRMU

SGB Non-Encapsulated Dry Transformer

50-5000kVA|Open wound|VPI process|Low partial discharge|BIL rated

Power
50-5000kVA
Cutting Depth
HV 3-35kV
Voltage
LV 0.4kV
Speed
VPI insulated
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Compact Transformer Substation - PowerGridRMU

Compact Transformer Substation

RMU+Transformer+LV panel|Pre-fabricated|Plug-and-play|Outdoor IP54|Anti-corrosion

Power
Full substation
Cutting Depth
Full MV/LV
Voltage
11kV/0.4kV
Speed
Pre-commissioned
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MV Switchgear Panel - PowerGridRMU

MV Switchgear Panel

Air-insulated|Vacuum CB|Draw-out type|Microprocessor protection|Arc flash rated

Power
Up to 3150A
Cutting Depth
31.5kA
Voltage
11kV/24kV/36kV
Speed
Electrically operated
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Installation & Service Package - PowerGridRMU

Installation & Service Package

Site survey|Commissioning|SF6 gas handling|Thermography|Preventive maintenance|24/7 support

Power
Full service
Cutting Depth
All models
Voltage
N/A
Speed
Per contract
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Also supplying: Busbar System · Vacuum CBs · Fault Indicator · Surge Arrester — one partner, complete MV distribution solution.

Why Contractors Choose PowerGridRMU

Every feature translates directly to faster distribution, lower cost, and longer machine life on your jobsite.

In-House R&D & Engineering

10+ engineers refining industrial distribution technology since 2010. Every machine designed, prototyped, and tested at our Tianjin facility.

Result: 40% faster distribution vs industry average

CNC Precision Machining

German & Japanese 5-axis CNC centers guarantee tight tolerances on critical components — drive wheels, gearboxes, and motor mounts.

Result: 30% lower vibration, extended component life

Full CE & ISO 9001 Certification

Complete CE certification suite for EU imports. ISO 9001:2015 quality management. All certificates provided for customs clearance.

Result: Smooth EU/US customs clearance guaranteed

OEM & Custom Branding

Custom color, logo, and voltage configuration. MOQ: 1 unit. Build your brand on proven equipment without the R&D investment.

Result: Your brand on proven machines — zero R&D cost

Fast Global Delivery

Strategic Tianjin port location. Core models stocked for immediate dispatch. DDP door-to-door service available worldwide.

Result: Equipment on your jobsite in 7-15 days

Global After-Sales Support

English-speaking technical team. Remote video diagnosis. Spare parts dispatched within 24 hours from our Tianjin warehouse.

Result: 48-hour issue resolution, minimize downtime

Trusted by Contractors Worldwide

CE / ISOUpload certificatesin Admin → Trust Assets

Certificates

UAESaudi ArabiaMalaysiaBrazilTurkeyIndiaGermanySouth AfricaVietnamMexicoEgyptIndonesia UAESaudi ArabiaMalaysiaBrazilTurkeyIndiaGermanySouth AfricaVietnamMexicoEgyptIndonesia

We bought 3 RMUs for our quarry operation. After 18 months of heavy use, the machines still run like new. Technical support via WhatsApp is incredibly responsive.

Ahmed Al-Rashid

Procurement Director — Saudi Stone Co., Saudi Arabia

The 26KW transformer cuts through our reinforced power walls effortlessly. We switched from a German brand — half the price, same performance, better support.

Marcos Silva

Operations Manager — Demolidora Tech, Brazil

PowerGridRMU customized the voltage for our 480V/60Hz jobsites at no extra cost. DDP delivery to Nigeria was smooth — all customs documents provided.

Emeka Okafor

CEO — West African Construction Ltd., Nigeria

New Customer Benefits — Limited Time

Start your partnership with PowerGridRMU and get these exclusive advantages.

Free Technical Manual

Complete 40-page technical manual with distribution charts, installation guides, and maintenance schedules.

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Bulk Purchase Discount

5% off 3+ machines. 10% off 5+ machines. Free spare parts kit worth $500 with every fleet order.

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Free Remote Technical Guidance

Complimentary video call setup support. Our engineers guide your team through installation and first cuts.

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Get Your Free Quote Today

Fill in the form. We respond within 12 hours with a detailed quotation tailored to your requirements.

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Languages: English, Chinese, Arabic (basic).

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Frequently Asked Questions

Quick answers for procurement professionals. Contact us for more specific inquiries.

What is the delivery time for industrial RMU panels?
Standard models ship within 7-15 days. OEM custom orders take 15-25 days. We keep core models (RMU 22KW, transformer 26KW) in stock. Sea freight: 15-25 days to Middle East, 20-30 days to Europe, 25-35 days to Americas.
Can you customize voltage for my country?
Yes. Standard: 380V/50Hz 3-phase. We customize to 220-380V, 440V/60Hz, 480V/60Hz and other regional standards. No extra charge. Please specify your local voltage when inquiring.
What warranty do you provide?
All machines carry a 12-month manufacturing warranty. Claims processed within 48 hours — we ship replacement parts immediately upon confirmation. Extended warranty available for fleet purchases.
Do you offer OEM / private labeling?
Yes, OEM with MOQ of 1 unit. Custom brand colors, logo, and model naming. 15-25 days production time. Full confidentiality — we never share OEM client information.
How quickly can you supply spare parts?
Comprehensive spare parts inventory at our Tianjin warehouse. Common parts ship within 24 hours. We recommend stocking a basic spare parts kit with your initial order. Express air freight: 3-7 days worldwide.
What export documents do you provide?
Full documentation: Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin (FORM E/F), CE Certificate, ISO 9001 Certificate. DDP (Delivered Duty Paid) door-to-door service available to most countries.
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