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69x34.5KV Portable 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
o 69,000 x 34,500 V Primary – 7200Wye secondary Taps + 2 ½%
o External Fan Controls
o Neutral Grounding Resistor 15A (277 Ohms) w/ PT backup GR protection
o Main three phase metering with Multilin PQM Power Quality Meter
· 3-Circuit Vacuum switchgear complete with the following typical each circuit
o Toshiba 630A electrically operated vacuum circuit breakers
o 350MCM Kerite feed
o Visible Air break switch
o Ammeter
o ABB Circuit shield 51Y overcurrent relays
o ABB Circuit shield 50D ground relay
o Multi-tap Current Transformers
o 50:5 Ground fault Current Transformer
o Pemco GM3 Ground monitor relay
o Outgoing cable exits through trailer floor with cable bushings.
o 9KV lightning arrestors
o Steel steps and guards
· Miscellaneous convenience lighting and 120V receptacles
Telephone: 270/825-1437 Fax: 270/825-1485
3135 Grapevine Rd.
Madisonville, KY 42431