Bushing assemblies are critical components of the electrical system, functioning as key connectors that provide a vital link between active conductors and grounded enclosures. They’re especially valued in balancing electric fields and keeping energy safe in various applications. Let’s look at key characteristics of low-voltage bushing assemblies, noting specifications and typical uses.

Bushing assemblies are critical components of the electrical system, functioning as key connectors that provide a vital link between active conductors and grounded enclosures. They’re especially valued in balancing electric fields and keeping energy safe in various applications. Let’s look at key characteristics of low-voltage bushing assemblies, noting specifications and typical uses.

Low-Voltage Bushing Assemblies

1.2KV Class, 30KV B.I.L., Externally Clamped Low Voltage Bushing Assembly

• Voltage and B.I.L.: 1.2 kV rated for systems, with 30 kV B.I.L., and are configurable for low voltage apps where minimal insulation from electrical surges is allowable.
• Design and Application: Usually, these are used where space and cost are constraints, but safety and reliability may not be compromised. The external clamping ability means easy installation in compact situations, such as small transformers or in-building electrical panels.

High Current Porcelain Bushing Assemblies

2.5KV Class, 60KV B.I.L., 4.0” Minimum Creep (Sidewall or Cover Mounted), 450-3600 Amps High Current Porcelain Bushing Assembly

• Specifications: With a 2.5 kV class rating and 60 kV of B.I.L., they are suitable for high voltage applications vs low voltage class. They can manage 450 to 3600 amps of current.
• Design Benefits: 4.0” Minimum Creep Distance allows adequate clearance to prevent electrical discharge along the surface, essential in applications at risk of contamination or moisture.

5KV Class, 75KV B.I.L., 5.0” Minimum Creep (Sidewall or Cover Mounted), 450–3600 Amps High Current Porcelain Bushing Assembly

• Increased Capacity: This assembly steps up the voltage class to 5 kV with a higher B.I.L. of 75 kV, indicating enhanced insulation against electrical surges and better performance in harsher conditions.
• Usage: Suitable for large industrial applications that require rugged performance, including power generation and distribution sectors where high reliability and long service life are necessary.

High Current Bushings for Mounting in 3.38” Diameter Hole (Sidewall or Cover Mounted), 600-3600 Amps High Current Porcelain Bushing Assembly

• Flexible Installation: Mounts in a standard 3.38” diameter hole and is suitable for numerous industrial applications. 3600 Amp capacity makes them perfect for heavy-duty applications.
• Usage: Often found in both power transmission and transformation systems, where large currents are required.

1.2KV Class, 45KV BIL, Air–to–Oil Applications, 3300–5400 Amps High Current Porcelain Bushing Assembly

• Specialized Applications: Tailored for air-to-oil electrical transformer applications, these bushings allow the transfer of large currents from air-insulated to oil-insulated environments.
• High Ampacity and Insulation: The broad amperage scope paired with large BIL value signifies their application in mission-critical applications that require superior ruggedness and high-performance characteristics.

Choosing the Right Bushing Assembly

Selecting the right bushing assembly requires knowledge of the electrical and physical requirements for your application. When lower voltage is required with moderate current demands, a standard low-voltage bushing assembly may be sufficient. But for use in industrial applications with higher voltages, currents, and tougher environmental exposure, selecting robust high-current porcelain bushing assemblies is critical.

Ensuring Excellence in Your Electrical Installations

Selecting the correct bushings for your particular application is essential to maintain efficiency, safety, and the life of your electrical systems. At Meister, a reputable sub-brand of Power Grid Components Inc., you’ll find a complete array of bushing assemblies to accommodate a variety of applications, from low-voltage environments to industrial high-current applications, in stock and ready to ship immediately. Browse through our extensive range of products and talk to our experts today to discuss your installations with quality and accuracy in mind. Find the best solutions for your electrical infrastructure.