−6.732° to +1.107° for 50Hz, But I have CT phase shift 5 degree, ADE7880 is suitable for my CT ?
Yes. You can use ADE7880 for your application.
The phase error that your CT adds has to be compensated by the phase calibration, in which case for a 5 degree phase delay you would need a -5 degree shift. This can be provided by ADE7880.
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