11 Kv Overhead Air Load Break Switch

The 11 kv overhead air load break switch is a transformer protection device designed for breaking load current, transformer no loading current, and cable charging current, as well as for closing load current. It provides functions of breaking, isolating, connecting, and switching. When used in combination with current limiting fuses, the 11 kv overhead air load break switch can be adopted as an alternative to a circuit breaker for transformer protection, particularly suitable for unattended substations. The features of 11 kv overhead air load break switches can be showed as the below:

1. Compact design, light weight, attractive appearance, simple operation, high technical parameters, strong breaking capacity, safe and reliable performance, long electrical service life, suitable for frequent operation, and low maintenance requirements.

2. Available operating modes: manual, motorized, or remote control.

3. Installation method: double pole mounting.

Product Parameter:

Product FAQ:

Q: What is an 11 kV overhead air load break switch?

A: An overhead air load break switch is a manually or motor operated electrical device designed for 11 kV distribution lines. It is installed on poles and provides a visible point of isolation. The 11 kV overhead air load break switch interrupts load current under normal operating conditions and is mainly used for sectionalizing lines, isolating equipment, and improving system flexibility.

Q: What type of insulation and arc quenching medium does an 11 kV overhead air load break switch use?

A: The 11 kV overhead type load break switch generally relies on air insulation and uses a quick make, quick break mechanism with arc chutes to safely extinguish the arc to ensure reliable performance in outdoor service without requiring SF₆ gas.

Q: What are the main components of an 11 kV overhead air load break switch?

A: The air load break switch normally consists of:

1. Blade contacts and arc chutes;

2. Porcelain or polymer insulators;

3. Operating mechanism;

4. Mounting frame and terminals.