12KV Sf6 High Voltage Ring Main Unit Switchgear

Lugao Power Co., Ltd. is a leading manufacturer and supplier of 12KV SF6 High Voltage Ring Main Unit Switchgear in China, combining compact design, powerful performance and reliable SF6 gas insulation technology. It is designed for industrial and utility applications, ensuring safe, efficient and long-lasting operation even under the most demanding conditions. This RMU switchgear complies with international standards, has low maintenance costs, high space efficiency and strong reliability, and is the first choice for different industries.

LUGAO 12KV SF6 High Voltage Ring Main Unit Introduction

The 12KV SF6 High Voltage Ring Main Unit Switchgear produced by Lugao Power Co., Ltd. is an advanced power distribution solution. This RMU adopts a fully sealed design, filled with SF6 gas as an insulating medium, which is completely isolated from the outside environment, ensuring high reliability and stability of the equipment. The modular design simplifies installation, operation and maintenance, and its space-saving structure is very suitable for environments with limited space. It adopts an intelligent fault detection and isolation system to enhance safety and ensure uninterrupted power distribution.

Manufactured from premium materials such as stainless steel and aluminum, this RMU is built to last and delivers exceptional performance. With its environmentally friendly technology, high safety standards and customizable configuration, this switchgear is an ideal choice for modern sustainable power systems.

LUGAO 12KV SF6 High Voltage Ring Main Unit Parameter

LUGAO 12KV SF6 High Voltage Ring Main Unit Operating Environment

1. Air temperature: Maximum temperature: +40℃; Minimum temperature:-35℃

2. Humidity: Monthly average humidity 95%; Daily average humidity 90% .

3. Altitude above sea level: Maximum installation altitude: 2500m

4. Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

5. No frequent violent shake.

LUGAO 12KV SF6 High Voltage Ring Main Unit Features

The enclosure, door, and upper chamber of this unit undergo a thorough spray processing, ensuring a protective and uniform finish.  All cabinets feature a main grounding busbar that facilitates a close connection near the cabinet.  Metal components, including grounding switches and interlocking parts, are meticulously linked to the grounding busbar.  Copper braid connections are employed between parts connected by screws to ensure continuity.

To manage gas release and prevent inner burning arcs, a pressure relief door is positioned at the back of the cabinet.  The upper board is securely fixed with screws, allowing it to be easily opened from the outside for bus connection.  The upper auxiliary devices chamber offers flexibility for installing terminals and other components.  By elevating the small chamber, relay protection can be efficiently achieved.

Notably, the load break switch and grounding switch utilize a block-type interlock, while the grounding switch and door employ a coercive interlock.  Following a specific sequence of steps—closing the door, turning on the grounding switch, and closing the load break switch—automatic interlock is achieved. This sequential operation serves to prevent faults and enhance the overall safety of the system.

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