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).
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
RE: EMC / EMI / RFI in Medium Voltage 22kV Substation
http://www.federalpacific.com/university/kfactor/kfactor.html
for: Common-mode noise
https://www.ch.cutler-hammer.com/docs/Fred/apscpgh/htmL/550000/l1.PDF
for: TVSS that incorporates the EMI filters