HV Switchgear

HV Ring Main Unit

HXGN15-12 | HYXGN-12 | HYGIS-12

HV Ring Main Unit

Product Overview

Compact ring main unit for 10 kV ring and terminal cable distribution systems.

  • Compact and modular design
  • Safety interlocking and arc protection
  • Designed to IEC and GB standards
  • Commissioning and after-sales support

Product Overview

HV Ring Main Unit

Ring main units are compact MV switchgear assemblies used in 10 kV and 12 kV ring and terminal cable networks. They combine load break switches, fuse protection and vacuum circuit breakers in a compact enclosure, allowing safe switching and protection of distribution feeders. This makes them a practical choice for utility networks, commercial developments, residential power supply and renewable connection projects.

Haiyue supplies HXGN15-12, HYXGN-12 and HYGIS-12 configurations with different switching and protection arrangements. As a ring main unit exporter, we provide load break switch and VCB options, custom cable entry, metering and protection schemes according to the project drawing.

Each ring main unit is factory assembled, wired and tested before shipment. We provide drawings, test reports, export packaging and commissioning support for overseas projects.

Before production, our engineers review the project single line diagram, protection scheme, metering requirements, cable entry and local grid standard. After approval, we complete factory assembly, routine testing, export packaging and documentation, and provide commissioning and after-sales support after delivery.

Technical Specifications

HV Ring Main Unit Specifications

Product ModelHXGN15-12 | HYXGN-12 | HYGIS-12
Product Type10 kV / 12 kV ring main unit
Rated Voltage10 / 12 kV
Rated Current630 / 1250 A
Breaker TypeLoad break switch / VCB
StandardIEC 62271
Rated Frequency50 / 60 Hz
StandardsIEC / GB / CQC / CB
Factory TestingRoutine testing before shipment
Export OptionsLoad break switch, VCB, fuse protection, cable entry, metering and IP enclosure

Applications

Where This Product Is Used

Utility distribution networks

Utility substations require reliable switchgear for incoming supply, feeder protection, metering and bus coupling. This product is configured to operate safely under normal and fault conditions, with drawout or fixed units selected according to maintenance requirements.

Commercial buildings

Commercial buildings need compact switchgear that is easy to install, operate and maintain. This product supports main distribution, metering and feeder configurations for retail, office, hotel and mixed-use developments.

Residential and municipal projects

Residential projects require safe and compact distribution equipment for terminal circuits and consumer supplies. The product can be configured with circuit protection, metering and enclosure options for local installation requirements.

Data centers and telecom

Data centers need high-reliability switchgear with clear maintenance access and stable protection. This product supports incoming, feeder and redundancy configurations for critical power systems.

Why Choose Haiyue

Factory Testing and Export Support

Custom Engineering

We review your single line diagram and confirm the HV Ring Main Unit configuration, protection and busbar arrangement before production.

Factory Testing

Every panel is assembled, wired and routine tested before shipment, with test records included in the delivery documentation.

Export Packaging

Switchgear is packed for sea or air freight with drawings, material certificates and shipping documentation.

Service Support

Commissioning and after-sales support are available. Overseas installation is not included.

Certification & Testing

Standards and Quality Control

This product is manufactured according to IEC and GB standards, with CQC and CB certification available for relevant configurations. The factory operates under ISO 9001, ISO 14001 and ISO 45001 management systems.

Before shipment, routine testing includes mechanical operation, insulation and withstand checks, wiring verification and functional protection checks. Type test documentation can be shared after technical qualification.

IECGBCQCCBISO 9001ISO 14001ISO 45001

Procurement & Lead Time

How to Order

Send your required voltage, current, single line diagram, protection and metering requirements, quantity, destination country and target delivery date. Our engineering team normally responds within 24 hours.

Standard configurations can be produced within 30 working days after drawing and material approval. Custom configurations are confirmed after technical review.

Overseas installation is not included. We provide commissioning support and after-sales technical service based on the project agreement.

FAQ

Common Questions

What is the difference between load break switch and VCB ring main units?

Load break switch units are normally used for switching and fuse protection of transformers and simple feeders. VCB ring main units provide higher short-circuit breaking capacity and are preferred where increased protection performance is required.

Can the cable entry and enclosure configuration be customized?

Yes. We can configure cable entry direction, enclosure size, metering, protection and auxiliary systems according to the project layout.

What is the production lead time?

Standard ring main unit configurations can be produced within 30 working days after technical approval.

What documentation do you provide with this product?

We provide drawings, factory test records, material certificates, export packaging details and shipping documentation with each order.

How do I request a quotation?

Send your voltage, current, configuration, quantity and destination country to our export team. We review the requirement and normally respond within 24 hours.

Request a Quote

Send Your Project Requirements

Send your project details to Leo Liu. We review the technical requirement and provide a quotation with drawings, lead time and export documentation list.