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Sheet Steel Enclosure
HSN Code : 85365090
Benlo BENTEC
Benlo BENTEC
A load break switch (LBS) is a switching device designed to safely open or close an electrical circuit while it is under normal operating load conditions. Unlike a circuit breaker, an LBS can make and break regular load currents and minor overcurrents, but it is not built to interrupt large, destructive short-circuit currents. For protection against short circuits, LBS devices are often combined with fuses.
How a load break switch works
When a load break switch is operated to break a circuit, an electrical arc forms between the separating contacts. The LBS uses a special arc-quenching system to safely and quickly extinguish this arc, preventing damage to the switch and ensuring safe operation. Different types of switches use different insulating and arc-quenching methods:
- Air-insulated: The arc is extinguished by compressed air.
- SF₆ gas-insulated: The switch chamber is filled with sulfur hexafluoride (SF₆) gas, which has excellent arc-quenching and insulating properties.
- Vacuum: The contacts are enclosed in a vacuum chamber, where the arc is extinguished almost instantly.
Types of load break switches
Load break switches are primarily categorized by their arc-quenching medium and voltage level.
- Vacuum Load Break Switches: Uses a vacuum to extinguish the arc, offering high reliability and a long electrical life. It is well-suited for medium-voltage applications, including substations and industrial facilities.
- SF₆ Gas Load Break Switches: Utilizes SF₆ gas for insulation and arc quenching. These are known for their compact size, reliability, and low maintenance needs, and are used in medium to high-voltage applications.
- Air Load Break Switches: Uses air as the insulating and arc-extinguishing medium. They are an economical choice for many medium-voltage applications, such as overhead lines and substations.
- Oil-Immersed Load Break Switches: The arc is extinguished by the surrounding insulating oil. These are older, heavier designs used primarily for outdoor applications.
- Manual vs. Motorized: LBS devices are also available with either a manual (lever/handle) or motorized operating mechanism. Motorized switches enable remote control, which is useful in large-scale systems or hazardous locations.
- Fuse Combinations: Some LBS units are combined with high-rupturing capacity (HRC) fuses to provide overload and short-circuit protection.
Common applications
- Power distribution networks: Used for sectioning networks to isolate faults or perform maintenance.
- Transformers: Used to switch transformers on or off under load for servicing.
- Ring main units (RMUs): Provides compact and reliable power distribution in urban underground systems.
- Industrial facilities: Ensures safe power control for large motors and other equipment.
- Renewable energy systems: Used in solar and wind power installations for isolating components.
SUPPLIERS:–
The reliable manufacturers and suppliers of based in India.
Customers from all across India are placing repeated orders, as there is no alternative available in terms of quality and performance.
Premium quality raw materials are used in the manufacturing that ensures noteworthy features such as high durability and resistance to abrasion.
How to contact us
If you’ve got questions or ideas you would like to share, send a message. For anything more specific, please use one of the addresses listed below.
Our Location :
Westside Controls 7.B.Murli Vihar Behind Canara Bank Sarojini Nagar Lucknow 226008
Factory Westside Controls
Khasra no-174, Amausi Station Road Naderganj Industrial Area Lucknow226008
Direct Line Numbers
9776806777 , 0522-3642558
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