Attachment 2 - Salient Characteristics.pdf
PDF 138 KB Posted
- Attached to
- 15KV HIGH VOLTAGE SWITCH
- Solicitation number
- FA441824Q0056
About this file
This document contains the salient characteristics for a 15kV pad-mount high voltage switchgear required to replace an existing unit at Hunley Park. The replacement switchgear must have a specific footprint of 9 feet by 5 feet, and include three cabinets - a 600A input, 600A through, and 200A fused output. The switch must meet various technical requirements related to bushing height, amperage ratings, interrupting ratings, and safety/maintenance features.
The related federal contract opportunity is Solicitation FA441824Q0056 issued by the Department of the Air Force Air Mobility Command for one (1) 15kV high voltage switch meeting the described salient characteristics. The solicitation does not provide any additional details beyond the product requirements.
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Other files
| File | Type | Posted |
|---|---|---|
| Attachment 3 - Hunley Park New Switch Dimensions.pdf | ||
| Combo.pdf | ||
| Attachment 1 - RFQ Pricing Sheet.pdf |
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Text version
SALIENT CHARACTERISTICS
Hunley Park 15kV Pad-mount High Voltage Switchgear
The existing Pad-mounted High Voltage Switchgear serving Hunley Park is beyond its service life and will require a replacement. That replacement will need to be a 15kV, 110 kV BIL SF6 insulated pad-mount switch.
Due to the existing switch dimensions, pad dimensions, and existing cable lengths, the following parameters MUST be met regarding the footprint of the replacement switchgear.
- Length: 9’ (108 inches)
- Depth: 5’ (60 inches)
- Cabinet 1 (Input) o Width: 36 inches o Depth: 24 inches o Bushing Height: 30 inches from the ground o Bushing Type: 600-Amp Dead-Front o Phase Number: 3 o Three Phase linear puffer load breaks switch o 630 Amps Continuous and loadbreak o 40kA asymmetrical momentary, and close-into-fault rating
- Cabinet 2 (Feed-Through) o Width: 36 inches o Depth: 24 inches o Bushing Height: 30 inches from the ground o Bushing Type: 600-Amp Dead-Front o Phase Number: 3 o Three Phase linear puffer load breaks switch o 630 Amps Continuous and loadbreak o 40kA asymmetrical momentary, and close-into-fault rating
- Cabinet 3 (Fused Output) o Width: 36 inches o Depth: 24 inches o Bushing Height: 24-36 inches o Bushing Type: 200-Amp Load-break o Phase Number: 3 o Three single phase 630 amp type VI interrupter per way gang linked to provide three phase operation.
o 12.5kA Symmetrical maximum interrupting rating o 500:1 internally mounted current transformers to provide field selectable trip levels from 10-300A o Type 1 vacuum interrupter control housed in a NEMA 4X enclosure o 200A bushing wells per IEEE 386 interface 3
For maintenance and longevity purposes, the switch will also require:
- Front & back access to bushings, rear & side access to operators
- Welded 0.25-inch mild steel tank & frame
- Parking stands for ALL bushings
- 12 gauge galvanized steel padmount enclosure with 24-inch cable compartments that meet
ANSI C37.72 & C57.12.28 standards
- Enclosure painted Padmount Guardian Green, Munsell #7.0GY3.29/1.5
- 0.5-inch 13 NC grounding provisions
- Padlockable operating mechanism – do not need padlocks included.
- 3-inch diameter or greater circular viewing windows to verify OPEN/CLOSED positions
- Color Coded OPEN/CLOSED labeling
- Stainless steel base reduced to fit existing pad with aforementioned dimensions.
File details come from the government source that posted it. Updated .