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Products
SanGao is a professional manufacturer and supplier in China. Our factory provides lightning arrester, earthing switch, AC isolation switch, etc. Buy wholesale from our factory for grid, mining, and power plant projects.
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Indoor High Voltage Disconnector
The SGGN6-12 series Indoor High Voltage Disconnector is designed for power systems with rated voltages of 6-12kV and rated frequencies of 50-60Hz. Equipped with a CS6-1 manual operating mechanism, it serves to isolate circuits and provide protective earthing during maintenance when the system is energized but under no-load conditions. This ensures reliable isolation from the main circuit and grounding during circuit breaker or other component maintenance, thereby guaranteeing personnel safety.
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Air Load Break Switch
What makes Air Load Break Switch truly reliable? Is it because of its simple structure and stable arc extinguishing performance, or is it because of its safe operation that does not require gas or complex maintenance? At San Gao Electric, we believe the answer lies in all of these aspects. Our air load circuit breakers are designed specifically for medium voltage indoor and outdoor distribution networks (typically 12kV-24kV). It is used to connect and disconnect load currents and provide clear isolation during maintenance to ensure equipment and personnel safety. Air is used as an arc extinguishing and insulation medium, which makes the equipment more environmentally friendly and easier to maintain compared to SF - based on alternative solutions.
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Indoor Type 24KV Vacuum Load Break Switch-Fuse Combination Apparatus
China manufacturer SanGao specializes in the R&D and Sales of the Indoor Type 24V Vacuum Load Break Switch-Fuse Combination Apparatus for over a decade. This is a high-voltage switching device that integrates a vacuum load break switch in series with current‑limiting fuses into a single assembly. The combination has the load switching capability of the load break switch and relies on the fuses for fault current interruption.This Apparatus are broadly used as a high‑value solution for protecting distribution transformers in medium‑voltage networks.
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High Voltage 24KV Disconnecting Vacuum Break Load Switch
SanGao Electric is a China supplier providing premuim High Valtage 24V Disconnecting Vacuum Break Load Switch. The vacuum load break switch is a medium‑voltage switching device that uses vacuum as the arc‑quenching and insulating medium and can safely and reliably make and break load current under normal circuit conditions. This apparatus is suitable for three‑phase AC 50Hz 24kV distribution systems and is widely used in substations of industrial and mining enterprises, buildings, and looped network distribution systems.
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12kV/24kV Eco-Friendly Air Insulated Vacuum Load Break Switch
SanGao Electric focuses on a practical combination of robust construction, reliable arc interruption, and safe, straightforward operation. Designed for medium-voltage indoor and outdoor distribution networks, typically in the 12kV–24kV range, the Air Load Break Switch is used to make and break load currents and provide a clearly defined isolation point during inspection and maintenance.The 12kV/24kV Eco-Friendly Air Insulated Vacuum Load Break Switch uses air as the insulation and arc-extinguishing medium, eliminating the need for SF₆ gas or insulating oil. This air-insulated design simplifies operation and maintenance while avoiding the handling and leakage concerns associated with SF₆-based solutions. With a practical mechanical structure and safety-oriented operating mechanism, SanGao's Air Load Break Switch provides a reliable switching solution for modern medium-voltage distribution systems.
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SGGN6-12 series Indoor High Voltage Disconnector
The SGGN6-12 series Indoor High Voltage Disconnector is designed for indoor power systems rated at 6–12 kV and 50–60 Hz. Featuring a CS6-1 manual operating mechanism, it is used to isolate electrical circuits and provide a reliable grounding path during equipment maintenance under no-load conditions. By ensuring clear circuit isolation and protective earthing, the disconnector helps create a safer working environment for maintenance personnel and supports reliable operation of high-voltage power distribution systems.
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Vacuum Load Break Switch and Fuse Combination Apparatus
SanGao, a China manufacturer of medium-voltage distribution equipment, offers premium quality Vacuum Load Break Switch and Fuse Combination Apparatus. The apparatus serves two distinct roles. As a load break switch, it makes and breaks load current, closed‑loop current, no‑load transformer current, and cable charging current. When configured as a switch‑fuse combination, it employs striker‑pin actuation to open all three phases and interrupt any current up to the rated short‑circuit value upon fault detection. This dual capability eliminates the need for a separate circuit breaker in many feeder and transformer protection applications, endowing the load switch with rapid, economical and effective short-circuit protection functions
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Indoor AC High Voltage Vacuum Load Breaker with Earthing Switch
Indoor AC High Voltage Vacuum Load Breaker with Earthing Switch from China supplier and manufacturer SanGao Electric a technically sound and cost‑effective distribution solution. Rated at 12 kV and 630 A, with a 20 kA short‑time withstand capability, this unit is used to securely connect and disconnect the circuit for three‑phase AC 50Hz systems, suitable for urban ring‑main units, industrial feeder cabinets, transformer incomers, and rural distribution sectionalising points.
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