North American air insulated ring main unit
North American Ring Network Distribution System

Rated voltage and insulation voltage
PME pad mounted switchgear is used for air insulation, dead front (fixed front cover), and outdoor distribution switchgear with system voltages of 14.4kV and 25kV.
A wide field of view, indestructible, and damage resistant observation window allows you to verify the switch position and check for visible fractures.
600 Ampere Cypoxy ™ The interface of the insulator sleeve complies with the IEEE386 standard.
The Penta locking mechanism provides impact resistant, automatic, three-point locks. Unusually sturdy and equipped with a padlock device.
The grounding rod extends to the entire width of each switch room, and the door can be closed with a grounding clamp.
By isolating compartments, steel fences separate the parallel cable compartments.
The deep and spacious terminal chamber can accommodate various elbows and accessories when the door is closed.
Mini Ruper switch is a three-phase non operated switch with a rated current of 600 amperes continuous.
At 14.4 kV and 25 kV. It provides controlled circuit splitting/load shedding circuit interruption through its unique arc compression internal deionization effect; There are no external arcs or flames.
The 14.4kV mini Rupter switch has a short-circuit rating of 25kA. The rated short-circuit current of the 25 kV mini Rupper switch is 12.5kA.
With changes in the environment, increased downtime tolerance, and safety requirements, utility companies are seeking more dynamic, robust, and air insulated cushioning solutions.
S&C's PME pad mounted switchgear provides the cost-effectiveness of air insulated switchgear while offering excellent performance, long service life, and ease of operation.
Due to the absence of exposed live parts in the PME switchgear, line workers can be protected from potential harmful voltages. PME equipment uses fully encapsulated medium voltage components that are not easily affected by wildlife, leaves, and environmental pollutants that may cause power outages and costs.
&The C manual PME pad mounted switchgear has air insulation function; Aerial switching; Quickly and conveniently handle the fuse to the dead end switchgear connected to the elbow tube.
The switch and fuse components are protected and isolated within an internal air insulated, grounded, and steel enclosed component compartment, which has excellent resistance to the entry of leaves, wildlife, and pollutants, and reduces the risk of public and operator contact with live parts.
The switch terminal is equipped with a 600 ampere fuse, and the fuse terminal is equipped with a 200 ampere sleeve. The interface design of the sleeve complies with IEEE standard 386 and can accommodate all standard elbows and accessories.
The liner and liner well are installed at least 25 inches (635 mm) above the bottom of the switchgear, and all bends can be easily operated from a standing position at a convenient angle.
Terminal compartments can be equipped with Penta Latch ® The mechanism for door entry is S&C's automatic door locking system. The three-phase air switch of the power circuit is operated by an externally operable Mini Rupper ® The switch is complete. The large observation window in the switch terminal room allows for intuitive verification of the position of the switch blade. There is no need to move the 600 ampere elbow to establish a working gap.
The fuse channel is operated by TransFuser ™ Installation components provided.
This installation method adopts a unique fuse handle mechanism, which can easily move the fuse to the disconnected or power-off position for easy access at any time.

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