Compact Sf6 Gas Insulated Ring Main Unit Switchgear for Medium Voltage Power Distribution Industrial and Utility Electrical Networks

Customization:	Available
Certification:	ISO9001
Shell Material:	Steel Plate

Basic Information

Model NO.

HCM

Voltage Level

Medium Voltage

Installation

Fixed

Structure

Floorstanding

Current

AC

Product Name

Gas-Insulated Ring Main Unit

Rated Voltage(Kv)

12, 24

Rated Current (a)

630, 1250

Rated Frequency(Hz)

50/60

IP Class-Shell

IP4X

IP Class-Gas Chamber

IP67

Warranty Period

12 Months

Production Capacity

50000 Pieces/Year

Package Size

120.00cm * 185.00cm * 240.00cm

Gross Weight

854.000kg

Product Description

SF6 FULLY ENCLOSED AND FULLY INSULATED RING MAIN UNIT

HCM-12 SF6 is a fully insulated, fully enclosed, common box compact medium voltage series ring main unit (RMU). Designed as indoor metal-enclosed switchgear, the unit and main bus are sealed in a shell filled with SF6 gas. This provides a system that is fully insulated, fully sealed, expandable, and easy to combine for various power requirements.

Key Features

✔ Fully insulated and compact design suitable for both indoor and outdoor enclosure applications.
✔ Modular, multi-functional combination with high reliability.
✔ Maintenance-free operation with a long service life.
✔ Flexible expansion to meet diverse network node requirements.

Detailed Photos

Technical Parameters

Item	Scheme C (LBS)		Scheme F (Fuse)		Scheme V (Breaker)
Item	12kV	24kV	12kV	24kV	12kV	24kV
Rated Current (A)	630	630	125	125	630	630
Rated Frequency(Hz)	50	50	50	50	50	50
Power Freq. Withstand Voltage (kV)	42	65	42	65	42	65
Lightning Impulse Voltage (kV)	75	125	75	125	75	125
Short Time Withstand Current (kA/s)	20/4	20/4	-	-	20/4	20/4
Mechanical Life (Times)	10000	5000	10000	5000	20000	10000

Key Advantages

01

High Reliability: Ring network configuration ensures continuous power supply during single-point failures.

02

Flexible Operation: Equipped with load switches and vacuum circuit breakers for efficient load transfer.

03

Compact Footprint: Ideal for urban substations and space-constrained environments.

04

Enhanced Safety: Built-in mechanical and electrical interlocks prevent misoperation and electric shock.

Frequently Asked Questions

Q1: Is OEM/ODM available for the Ring Main Unit?

A1: Yes, our products are fully customizable. Our engineering teams can adapt designs according to specific technical drawings or requirements.

Q2: What is the Minimum Order Quantity (MOQ)?

A2: The MOQ is one set.

Q3: What is the typical delivery time?

A3: Delivery normally takes about 15-20 days, depending on the specific order quantity.

Q4: How do you ensure product quality?

A4: We utilize a QC team following TQM standards. Every product is fully assembled and tested before packing. We can provide photos and videos of the testing process upon request.

Q5: How long is the standard warranty?

A5: The standard warranty is one year from the date of sale.

Q6: What environments are these units suitable for?

A6: They are ideal for schools, parks, factories, urban substations, and space-constrained industrial or utility electrical networks.