Electrical Transformer Pad Design

Architectural drawings and specifications relating to the electric service equipment and transformer pad location.

Electrical transformer pad design.

Manufacturer s proposed specifications for the electrical service equipment. Views of transformer oil cooled 7044 kb. Calls must be made at least five working days in advance. Often being constructed in less than a day these pads are readily available for immediate installation without waiting for curing like pour in place alternatives.

To request blue stake call 811 or 1 800 stake it 800 782 5348. 2 8 1 transformer test schedule 2 8 2 design tests 2 8 3 routine and other tests part 3 execution 3 1 installation 3 2 grounding 3 2 1 grounding electrodes 3 2 2 pad mounted transformer grounding 3 2 3 connections 3 2 4 grounding and bonding equipment 3 3 installation of equipment and assemblies 3 3 1 meters and current transformers. 30 5512 pdf standard concrete pad for 25 kv pmh 3 switch enclosure. Wood float finish leaving no depressions.

Standard concrete pad with sidewalk for 15 kv pme 9 auto transformer switchgear. Minimum concrete cover over reinforcing steel is 2 unless otherwise noted. The low voltage winding matches the customer requirement and may be single phase or three phase. Download this 3d autocad model of a power transformer for use in your electrical design 3d cad drawings.

Pad mount transformers operate on medium voltage distribution systems up to about 35 kv. 30 5710 pdf standard concrete pad without sidewalk for 15kv 25kv s c vista 422 auto transformer switchgear. Design drawings pertaining to a vault installation shall be uniformly prepared and sealed by the customer s design professional. Electrical symbols transformers generators transformer symbol.

Schneider electric usa website. Transformer pads all dimension in inches a 104 reinforcing bars 13 4 98 secondary c 3 4. Reinforcing steel atsm a615 grade 60 place approximately 6 from each other and securely tied together. Download cad block in dwg.

Pad mount transformers are available in various electrical and mechanical configurations. The 2 500 kva style iie transformer will sit on the old 80 x 106 pad but the radiators will overhang the pad. The 300 kva style iie transformer will fit on the small style iie pad. The applicant must frame the concrete transformer pad or purchase a pre cast pad before called tep for an inspection.

To request a power kill or access to tep equipment call 520 918 8300. 6 the style iie transformers will fit on style iib iic llf pads. From small stabilizing pads to large transformer foundations oldcaslte infrastructure equipment pads are durable and convenient foundations for your equipment needs. Some utility companies such as pacific gas electric which serves my area of california already have ready made transformer pad designs for a large number of transformer sizes as well as pad designs for master meter assemblies etc.