ACSR is a high-capacity stranded conductor commonly used for overhead power lines. The ACSR conductor can be designed in the following way: the conductor’s exterior can be made entirely of pure aluminum, while the interior can be made entirely of steel to offer extra strength to support the conductor’s load. Steel has a higher strength than aluminum, allowing mechanical force to be exerted over the conductor.

The conductor’s life span can be prolonged by galvanizing or coating the steel conductor with another substance to keep the material from corroding. The diameters of the steel and aluminum can be varied depending on the kind of ACSR conductor, including ACSR dog conductor and ACSR rabbit conductor.

ACSR Conductors

ACSR conductors are available in various diameters, with single or multiple core steel wires—a significant amount of aluminum filament in general. Although certain conductors have a higher number of steel strands than aluminum strands, some conductors have a higher number of steel strands. The stranding of an ACSR can be used to identify it.

ACSR Conductor Types

Copper conductors were once widely used in transmitting power, but AI conductors have since supplanted them for various reasons, including cost (as opposed to copper), diameter (as compared to copper), and so on. ACSR conductors come in a variety of shapes and sizes, including the ones listed below:

• All Aluminum Conductor – AAC
• Aluminum Conductor Aluminum Reinforce – ACAR
• All Aluminum Alloy Conductors – AAAC
• Aluminum Conductor Steel Reinforced – ACSR
• All Aluminum Conductor (AAC)

This conductor has lesser strength and more sag per span length than other types of conductors. As a result, it’s employed at the distribution level. This conductor’s conductivity is somewhat higher at the distribution system.

Proximity Effect

After the AC has passed through the conductors, the current flow in each conductor can be pushed to smaller areas, which is known as the proximity effect.

Because of electromagnetic induction, a changing magnetic field drives the flow of electric current in a conductor, resulting in this phenomenon. When AC flows through an isolated conductor, it generates an alternating magnetic field in the vicinity. This magnetic field induces eddy currents in adjacent conductors, causing the overall current distribution to shift.

Hysteresis Loss

Atomic dipoles within the steel core mainly cause hysteresis losses in the ACSR conductor. These losses are not appealing, but they may be minimized by using aluminum layers that are evenly spaced inside the conductor.

In this conductor, even with numerous aluminum layers, the hysteresis loss is negligible. However, for these conductors with an odd number of aluminum layers, a magnetization characteristic is used to compute the AC resistance properly. An odd-layer design will have a lower capacity rating than an even-layer design due to substantial hysteresis losses inside the steel and accompanying core heating.

Advantages

Some of the advantages of the ACSR conductor are as follows:

• The structure of an ACSR conductor is planar.
• The transmit power is great.
• These cables have high tensile toughness.
• Outstanding performance
• These have a lengthy lifespan.
• They provide a tremendous lot of versatility.

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