As part of Commonwealth Edison’s GRIP Program, Milhouse Engineering & Construction, Inc, is providing protection & control engineering design services at TSS 76 Blue Island Substation.
ComEd will be replacing the 300MVA TR 82 and installing a 345kV circuit breaker and bus side motor operated disconnect on the high side of the transformer. The current MOD on the high side of the transformer and 34kV tertiary capacitor bank will be removed. The 138kV conductor from TR 82 will be upgraded. Two new 138kV 57.6 MVA capacitor banks will be installed. A new 138kV capacitor bank circuit breaker and MOD will be installed. Two new 138kV capacitor bank circuit switchers with pre-insertion inductors will also be installed.
Milhouse is responsible for the design of:
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