Medium voltage current transformers , IWB series

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3.6-7.2-12-17.5-24 KV

Primary current from 50 to 4000 A

Cast-resin insulated


More details

Technical data

Rated insulation level*:24/50/125 - 3.6/20/60
Primary current Ipn*:Up to 4000
Secondary current Ipn*:1or 5
Rated output*:1-100
Accuracy class*:0.2-0.2S-0.5-0.5S-1-3-5P-10P-ClX
Security factor*:5to20
Accuracy limit factor*:5-10-15-20-30
Continuous thermal current*:from 1.2 to 1.5Ipn and 2Ipn
Short time thermal current Ith *:80to1000Ipn
Dynamic current Idyn*:2.5Ith
Insulation class*:E
Ambient temperature*:-5C° to + 40 C° -25C° to + 40 C° -40C° to + 40 C°
Standards*:IEC60044-1, IEC61869-2, IEC60044-6

Other characteristics on request

Secondary current Isn**:from 0.005 to 10 A
Multiple cores**:Up to 5 separate cores
Continuous Thermal current**:from 1.2 to 1.5Ipn and 2Ipn
Ambient temperature**:Up to 110 C
Standards**:ANSI C57.13, IEC60044-6, BS, A, VDE
Multi ratio**:By secondary tapping


Indoor or outdoor:Indoor
MV CT's type:Post type