Sulfur Hexafluoride (SF6) is an excellent gaseous dielectric for high voltage power applications. It has been used
extensively in high voltage circuit breakers and other switchgears employed by the power industry. Applications
for SF6 include gas insulated transmission lines and’gas insulated power distributions. The combined electrical,
physical, chemical and thermal properties offer many advantages when used in power switchgears. Some of the
outstanding properties of SF6 making it desirable to use in power applications are:
V High dielectric strength
V Unique arc-quenching ability
V Excellent thermal stability
V Good thermal conductivity

 circuit breaker is equipped with separated poles each having its own gas. In all types of the circuit
breakers, gas pressure is 2 bars (absolute 3 bars). Even if the pressure drops to I bar, there will not be any change
in the breaking properties of the circuit breaker due to the superior features and Elimsan’s high safety factor
for the poles. During arcing, the circuit breaker maintains a relatively low pressure (max 5-6 bars) inside the chamber
and there will be no danger of explosion and spilling of the gas around. Any leakage from the
chamber will not create a problem since SF6 can undergo considerable decomposition, in which some of toxic
products may stay inside the chamber in the form of white dust. If the poles are dismantled for maintenance, it needs
special attention during removal of the parts of the pole. This type of maintenance should be carried out only by the experts
of the manufacturer. (According to Arcing Products and Safety Instruction for Working on SF6 Circuit Breakers)

The circuit breaker must detect a fault condition; in low-voltage circuit breakers this is usually done within the breaker enclosure. Circuit breakers for large currents or high voltages are usually arranged with pilot devices to sense a fault current and to operate the trip opening mechanism. The trip solenoid that releases the latch is usually energized by a separate battery, although some high-voltage circuit breakers are self-contained with current transformers, protection relays, and an internal control power source.

SF6 Circuit Breakers – Reliable High-Voltage Protection

 (Sulfur Hexafluoride) Circuit Breakers are widely used in high-voltage and medium-voltage applications due to their exceptional insulation and arc-quenching properties. These breakers use gas as an insulating and extinguishing medium, ensuring efficient fault clearance and minimal power loss.

Why Choose SF6 Circuit Breakers?

Superior Arc Quenching – SF6 gas provides high dielectric strength, ensuring rapid arc extinction.
Minimal Maintenance – With sealed gas chambers, these breakers require less upkeep compared to conventional ones.
Compact & Space-Saving – Their design allows for high-performance operation in smaller spaces.
High Durability – Designed to withstand extreme electrical and environmental conditions.
Low Power Loss – Ensures efficient energy management with reduced operational losses.

Applications of SF6 Circuit Breakers

Power Transmission & Distribution – Used in substations and grid systems.
Industrial & Commercial Facilities – Protecting electrical networks from faults.
Renewable Energy Systems – Essential in solar and wind power projects.

SF6 Circuit Breakers offer superior arc quenching, high dielectric strength, and minimal maintenance, making them ideal for power grids, industrial setups, and renewable energy systems. Their compact design ensures efficient performance in high-voltage applications. Choose our reliable SF6 solutions in Hyderabad for enhanced power protection and long-term efficiency.

At Sri Sai Power Control, we provide high-quality Circuit Breakers in Hyderabad, ensuring safe and efficient electrical systems.

Contact us today to learn more about our SF6 solutions!