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EMC / EMI / RFI in Medium Voltage 22kV Substation

EMC / EMI / RFI in Medium Voltage 22kV Substation

EMC / EMI / RFI in Medium Voltage 22kV Substation

(OP)
Appreciate previous experience in levels of EMI / RFI measured in 22kV indoor subsations, specifically in 22kV/433V,  2000kVA transformers. Two such transformers will be located in a switchroom  within a hospital. Concern is EMI/RFI to medical instruments, computers etc.
Is a distribution transformer a significant contributor of EMI?. If not what would be the worst offender. Do Standards specify maximum levels?.  What are possible low cost solutions (if any).

RE: EMC / EMI / RFI in Medium Voltage 22kV Substation

Switchgear in general and transformers in particular are large producers of EM fields. Interference with medical equipment and/or computers is, however, rare. Most modern switchgear rooms have electronic monitoring equipment which works without problems. What specific situations do you have?

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