Ct Vt Ratios: CT_RELAYING_CLASS
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 | secondary voltage V (V) | standard | standard burden ohm (ohm) |
|---|---|---|---|---|
| CT_RELAYING_CLASS | C10 | 10 | IEEE Std 3004.1-2013 | 0.1 |
| CT_RELAYING_CLASS | C100 | 100 | IEEE Std 3004.1-2013 | 1 |
| CT_RELAYING_CLASS | C20 | 20 | IEEE Std 3004.1-2013 | 0.2 |
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