Product Overview

The SGG2 Outdoor High Voltage Isolating Switch is a single-pole, vertical open-type disconnector designed for three-phase distribution networks. Its main purpose is to provide a visible isolation point and a safe air gap for maintenance or circuit segmentation. The design features a robust and economical knife-switch mechanism, with key components including a sturdy base, insulating pillars, a main conductive assembly (with twin blades), and an automatic self-locking device. It is safely operated from the ground using an insulated hook rod. With its reliable and simple construction, the SGG2 provides a practical outdoor isolation solution that supports flexible installation options to meet diverse site requirements.

Product Features

◆Single-Pole Vertical Break Design: Each phase is independently mounted on its own base with pillar insulators, providing clear isolation and facilitating maintenance.

◆Knife-Switch with Adjustable Pressure: Features dual conductive blades with adjustable compression springs to fine-tune contact pressure, ensuring reliable performance and longevity.

◆Insulated Hook Rod & Self-Locking: All operations are performed remotely using an insulated hook rod for safety, with an automatic self-locking device that securely locks the switch in both fully open and fully closed positions, preventing unintended movement.

◆Flexible Installation: Designed for versatile mounting on poles, walls, crossbeams, or metal frames, in vertical or angled orientations. The blades open downward for enhanced safety and stability.

Product Advantages

◆Enhanced Safety: The combination of visible air gap isolation, remote hook rod operation, and a positive self-locking mechanism significantly reduces operational risks.

◆Economic Efficiency & Simplicity: Its straightforward design translates to lower initial costs, ease of installation, and minimal maintenance requirements over its lifespan.

◆Reliable Performance: The adjustable spring system ensures consistent and reliable electrical contact, reducing heating and improving long-term operational stability.

◆Installation Versatility: Adaptable to a wide range of structural supports and spatial configurations, making it ideal for both new installations and system upgrades in constrained spaces.

Usage Scenarios

The SGG2 Isolating Switch is ideally suited for outdoor high voltage applications requiring a reliable disconnection point. Common use cases include:

◇Electrical Substations: For isolating sections of busbars, transformers, or feeder circuits.

◇Industrial & Mining Plants: As a main or branch circuit isolator for power distribution networks within industrial facilities.

◇Renewable Energy Farms: (Solar, Wind) For isolation in combiner boxes or connection points.

◇Rural Grids & Overhead Line Systems: Used on utility poles for line segmentation, load switching, or maintenance safety.

◇Infrastructure Projects: Suitable for installation on walls or frames in switching stations, pump houses, or other utility buildings.

Technical parameters

Project			Parameter
Rated voltage			10kV		12kV		15kV
Maximum operating voltage			12kV		12kV		15kV
Rated insulation level	1minute power frequency withstand voltage (RMS)	On the ground	40kV		40kV		40kV
		Fracture	47kV		47kV		47kV
	Lightning impulse withstand voltage (peak)	On the ground	105kV		105kV		105kV
		Fracture	120kV		120kV		120kV
Rated frequency			50Hz
Rated current			200A	400A	630A	800A	1000A	1250A
4seconds heat stabilized current RMS			6.3KA	12.5KA	20KA	25KA	25KA	31.5KA
Dynamic stable current (peak)			16KA	31.5KA	50KA	63KA	63KA	80KA
Creepage distance			300mm
Mechanical life			2000times