Troubleshooting

In the case of errors, e.g. unexpected or incorrect values, inverse power:

Check the settings of the measuring device on the basis of its operating instructions.
Check whether the current transformer is mounted on the intended conductor in the direction of the energy flow.
Check the connection of the current transformers and the corresponding voltage tap-off if the active and/or reactive power does not correspond to the expected values; if necessary, one phase has been reversed.
Check whether the current transformer is connected correctly.
Check the power requirement of the conductors and measuring devices connected to the current transformer. It must not exceed the rated power of the current transformer (see name plate).
If the above points do not solve the problem:
Check whether there is dust or other dirt between the two parts of the core. If so, clean the surfaces carefully with a lint-free cloth.
Avoid hand contact (sweat)!