Load Break Resolution For Free

A load break switch or LBOR switch is an ?on / off? switch, similar to an ?on / off? light switch in your house. A load break switch is designed to switch the power ?on or off? or change the position when the transformer is energized (meaning it has a load on it)?the switch will break this load.

Fused load breakers with rated current range of 160 ? 630 A have short circuit breaking capacity with 65kA fuse. Rated thermal air flow range of unfused load breakers is determined as 160 ? 2000 A and its short-term resistance is in the range of 8 ? 35 kA.

A load break switch is a device that disconnects the electrical current from an electric device or circuit when the current exceeds the nominal value. They are tripped by the magnetic field in the major power system and re-close when the electrical demand decreases, reducing current peaks in low impedance circuits.

Disadvantages of Air Break Switch The air break switch is heavier in weight. These switches are not suitable for modern power systems. These switches have poor arc quenching properties due to air used as a dielectric medium. In the air break switch, there is a change of air leakage that can cause reduced air pressure.

The advantages of load break switch include the following. LBS is less costly as compared to a two-pole structure. This switch provides a secure power grid operation. This switch very easily controls the supply by switching ON & OFF.

Load interrupter switches should not be used to interrupt load currents above their interrupting rating of 600 A or 1200 A, as they are not designed nor tested for interrupting fault currents on electrical systems .

As load interrupter switches are neither designed nor tested for interrupting fault currents on electrical systems, they should not be used to interrupt fault currents, phase, or ground.