Unit Substations

IEM’s Medium Voltage Unit Substations can utilize any configuration up to 27kV. They are designed for industrial applications to convert distribution voltages to utilization voltages. Easy interface with both primary and secondary switchgear. Outdoor or indoor. Primary voltage from 38kV, secondary voltage > 5kV.

Primary – Air terminal chamber, vacuum circuit breaker or load interrupter switch to 27kV
Transformer – Any commercially available transformer
Secondary – Vacuum circuit breaker or load interrupter switches, UL 891 or UL 1558 switchgear
Maximum flexibility with wide range of components and ratings to meet application specifics
Indoor or outdoor assemblies/construction
Configures to any commercially available transformer by leading manufacturers
Comprehensive substation composite layout drawings
Superior flexibility options including increased utilization of space
Improved voltage regulation and lowered power losses
Complete coordination of substation components ensures precise fit
Minimizes the use of secondary distribution cables and busway

Switchgear meets seismic testing, circuit requirements as outlined by IEEE344 and ICC-ES-AC156.

Documentation

Product Sheets (PDF)

Unit Substations Product Sheet

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