Indoor vacuum load switch is a kind of switchgear specially designed for the internal power distribution system of buildings. It uses vacuum as the arc-extinguishing and insulating medium, and can safely and reliably connect and disconnect circuits under load current. It has a clear isolation gap, but its ability to break short-circuit current is limited or non-existent.
You can contact Taili and we are a reliable manufacturer of indoor vacuum load switch. Get a customized and advanced solution from our factory, as well as comprehensive services.
Main advantages (Why it becomes mainstream?)
1. Safety and Environmental Protection:
- No explosion risk: Arc extinguishing is completed in a sealed vacuum chamber, eliminating the risk of oil spraying
like oil switches and the explosion risk of gas pressure vessels like SF6 switches.
- No greenhouse gases: No SF6 (a potent greenhouse gas) is used, aligning with environmental protection trends.
- No external arcs: All arcs are confined within the arc extinguishing chamber, ensuring safety for operators and
surrounding equipment.
2. High Performance and Long Service Life:
- Strong arc extinguishing capability: The vacuum arc has low energy and short arc duration (typically within half a
cycle), resulting in minimal contact wear.
- Long electrical life: Capable of breaking the rated load current thousands to tens of thousands of times, with
minimal operation and maintenance, truly achieving "maintenance-free".
- Long mechanical life: Equipped with a precise spring operating mechanism, the mechanical life can exceed 10,000
operations.
3. Strong Adaptability and Easy Installation:
- Environmentally friendly: Vacuum performance is not affected by altitude, humidity, or contamination, making it
particularly suitable for indoor spaces with limited space and variable environments.
- Compact structure: Small in size, saving valuable space in distribution rooms.
- Easy installation: Modular design, easily integrated into various switch cabinets.
4. Simple and Reliable Operation:
- Typically equipped with manual (with energy storage handle) and electric spring operating mechanisms, enabling
remote control and automation.
Indoor Vacuum Load Switch
Indoor vacuum circuit breaker
Function
Operation (frequent load variation)
Protection and operation
Arc extinguishing chamber design
Relatively simple and with lower costs
More powerful, capable of withstanding and breaking short-circuit currents, as well as withstanding
thermal stress.
Operating mechanism
Usually, it is a simple spring mechanism.
More complex and powerful springs or permanent magnet mechanisms ensure rapid tripping.
Protection device
There is no built-in relay protection; it relies on external fuses.
There are built-in or complementary microcomputer-based relay protection devices.
For inquiries about transformer, switchgear, medium voltage circuit breaker or price list, please leave your email to us and we will be in touch within 24 hours.
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