Ct Vt Ratios: CT_BURDEN_STD
CT and VT standard ratios, accuracy classes, burden designations, and IEC/IEEE accuracy limits per IEEE C57.13 and IEEE Std 3004.1-2013. Covers metering CTs, relaying CTs (C-class), standard CT/VT burdens, and IEC accuracy limits.
| instrument transformer type | ratio designation | application | impedance ohm (ohm) | inductance mH (mH) | power factor (dimensionless) | resistance ohm (ohm) | standard | voltamperes VA (VA) |
|---|---|---|---|---|---|---|---|---|
| CT_BURDEN_STD | B-0.1 | Metering | 0.1 | 0.116 | 0.9 | 0.09 | IEEE Std 3004.1-2013 | 2.5 |
| CT_BURDEN_STD | B-0.2 | Metering | 0.2 | 0.232 | 0.9 | 0.18 | IEEE Std 3004.1-2013 | 5 |
| CT_BURDEN_STD | B-0.5 | Metering | 0.5 | 0.58 | 0.9 | 0.45 | IEEE Std 3004.1-2013 | 12.5 |
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