HL standard current transformer is also called precision current transformer, current transformer standard, standard CT and current transformer standard. The transformer standard is divided into current transformer standard and voltage transformer standard.

Standard current transformers are used as current transformer calibration standards in the error test of transformers. Standard current transformer standards support: DL/T725-2013, GB1208-2006,

GB/T22071.1-2008.

         The HL standard current transformer is developed and produced according to industry standards, aiming at the error test of the transformer as the current transformer calibration standard, and the HL standard current transformer is used for calibration below 0.01

  Grade current transformers can be self-calibrated at the current ratio of 5/5 or 1/1 at the same time. The HL series standard current transformers are equipped with casters for easy on-site movement.

        1. The current transformer of this standard is composed of primary winding and secondary winding;

        2. Perform calibration according to the standard current ratio indicated on the nameplate;

        3. The current transformer of this standard can be self-calibrated with current ratio of 5/5 or 1/1;

        4. The standard current transformer has casters for easy handling.