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Junction Bars & Cabinets

Junction Bars & Cabinets

Provides an extremely compact, versatile solution for loop, tap, grounding, testing or sectionalizing applications through 35kV, 900A. Padmount, vault and subsurface designs are available.

Features and Benefits

  • Customizing Capability – G&W Electric specializes in custom solutions to meet the ever changing needs of it’s customers. Contact your G&W Electric representative with specific application requirements
  • Application Versatility – G&W Electric epox junction bars accommodate up to 6 point configurations with any combination of 200A, 630A or 900A interfaces for either load break or dead break elbows. The junctions can eliminate or minimize the requirement for stacking 200A taps on 600A or 900A elbows and provide an ideal solution for confined space installations. The flexible design permits integrating interface points for grounding or testing the circuit while minimizing the movement of cables. Junction points can also be used for arrester locations
  • Rugged construction using epox technology – G&W Electric junction bars utilize time-proven epox technology to assure a void-free, extremely durable system imperious to environmental contamination. The rugged epoxy interfaces minimize the breaking force required for removing separable connectors compared to rubber-to-rubber junctions. The epoxy system provides excellent mechanical and electrical properties, excellent fracture toughness, and outstanding thermal endurance. A permanently bonded, external semi-conducting coating provides a fully shielded, dead front system. Copper buswork provides maximum conductivity. Silicone bronze studs assure high strength connection points
  • Mounting Flexibility – An optional stainless steel mounting bracket with tilt feature helps facilitate the most ideal mounting configuration where cable training is a concern. Parking stands are available and can be rotated to match a vertical or horizontal configuration. A retaining plate with “U” straps is available for padmount enclosure installations
  • Tested Reliability – G&W Electric junction bars are designed and tested to applicable sections of IEEE 386 standards. Production tests include X-ray, corona and AC withstand
Electrical Ratings Chart for Junction Bars

Max. Voltage, kV152535
BIL Impulse, kV95125150
Continuous Current, A900900900
Corona Extinction, kV111926
Ratings Chart for GNI Switches

Voltage Class, (kV)15kV25kV35 kV
Maximum design voltage (kV)15.5kV27kV38kV
BIL Impulse (kV)110kV125kV150kV
1 Min Withstand AC (kV)35kV60kV70kV
1 Min Withstand Production test rating AC (kV)34kV40kV50kV
15 Min Withstand DC (kV)53kV78kV103kV
Continuous and load break current (A)*630 amps630 amps630 amps
Momentary Current (kA) asym40kA asym40kA asym40kA asym
Fault-Close 3-times (kA) asym40kA asym40kA asym40kA asym
1 Sec Current (kA) sym25kA asym25kA asym25kA asym
Mechanical Operations200020002000
Symmetrical interrupting ratings (kA)**252525
*900A continuous available
**12.5kA and 20kA available