Beckhoff SCJ6625, Руководство пользователя, Страница: 47 / 53

Commissioning
SCT6xxx 47 Version: 1.3
4.3 Troubleshooting
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)!