Mobile Substation
William E. Groves Construction's Mobile Substation is there when power is needed and quickly.
69x34.5kV Mobile Substation Details
- Standard Tri-axle lowboy tractor trailer with grounding pads
- 69kV Primary Gang Operated Airbreak Switch with ground mat
- 69kV 80E SMD-2B Fuse Units with integral lightning arrestors.
- 6700kVA Power Transformer
- 69,000 x 34,500 V Primary – 7200Wye secondary Taps + 2½%
- External Fan Controls
- Neutral Grounding Resistor 15A (277 Ohms) with PT backup GR protection
- Main three phase metering with Multilin PQM Power Quality Meter
- 3-Circuit Vacuum switchgear complete with the following typical each circuit
- Toshiba 630A electrically operated vacuum circuit breakers
- 350MCM Kerite feed
- Visible Air break switch
- Ammeter
- ABB Circuit shield 51Y overcurrent relays
- ABB Circuit shield 50D ground relay
- Multi-tap Current Transformers
- 50:5 Ground fault Current Transformer
- Pemco GM3 Ground monitor relay
- Outgoing cable exits through trailer floor with cable bushings.
- 9KV lightning arrestors
- Steel steps and guards
- Miscellaneous convenience lighting and 120V receptacles
