Telstar CT - Setup issues

Power does not match utility meter

Please verify that the current transformer terminals are closed.

• In some projects, after installation, the current transformer terminals are sometimes forgotten to be closed.

Ensure that the transformer ratio has been set correctly.

• Solution: In the Smart-me portal, select "Meter," then click on the gear icon, go to "General Settings," enter the correct ratio, and save it.

• Smart-me recommends entering the transformer ratio in the cloud as it is noted on the transformer itself, for example, 300:5.

• Important: Historical data will not be adjusted.

Check if the transformers have been connected correctly.

• For PV meters, the current usually has a negative sign. 

• Generally, pure consumption meters have positive signs for currents. 

• The balance meter may have different signs depending on the situation.

  • For purchased power, these are usually positive. 

  • For delivered power, these are usually negative.

Check if the power factor (Cos Phi) is as expected (depending on the load)

• If the cos Phi <0.5, it is likely that the voltage taps do not match the phases or the direction of rotation has been reversed.

Check if the deviation is less than or equal to 1%.

• Our devices have a 1% measurement accuracy according to the MID standard.