Substation Design

Substation Engineering Capabilities

Our structural engineering team has vast experience in dealing with both above and below-grade substation project scopes. We are proficient in RISA-3O, STAAD.Pro, PLS-CADD, PLS-POLE, and TOWER. The substation engineering design team at ASEC has designed everything from Dead-End Take Off Structures to Hollow Structural Steel (HSS) support structures for rigid bus, switch stands, surge arrestors, lightning masts, and capacitor banks. We are also familiar with developing loading calculations utilizing IEEE 605 and lightning protection analysis utilizing IEEE 998.

ASEC has also designed unique tapered tubular substation structures when HSS shapes are no longer feasible. We are also well versed in drilled pier and direct-embed foundations utilizing MFAD, LPILE, or PLS-CAISSON software. Additionally, ASEC has engineered traditional mat and spread footing foundations utilizing hand calculations and STAAD Foundation Advanced software for more complex substation engineering designs.

Overhaul-Rebuild and Fiber Addition

Overhaul-Rebuild and Fiber Addition

SCOPE ASEC is supporting our client with this 26-mile project that consists of 17 miles of overhaul-rebuild and an additional 9 miles of OPGW Fiber addition to the existing transmission line structures. The existing H-frame line is being converted to delta-monopoles....

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138kV Substation A-frame Analysis

138kV Substation A-frame Analysis

SCOPE ASEC’s client is rebuilding their existing 138kV transmission line and requested ASEC to analyze the existing substation dead-end structure to determine the maximum allowable pull-off tension capacity. PROJECT DESCRIPTION The terminal deadend structure was...

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138kV Substation Relocation

138kV Substation Relocation

SCOPE Re-route of 2 overhead 138kV transmission lines and 7 overhead 69kV transmission lines through the multi-phase construction of the new 138kV substation. PROJECT DESCRIPTION The construction of the overall substation was carried out in 20 smaller phases through...

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ASEC is committed to maintaining its reputation as a provider of engineering services. To ensure consistent customer satisfaction, ASEC has established a quality management system certified to ISO 9001 that identifies risk, improves processes, and creates quality products and services.