Metering Insights

How does a scanning head work?

Each energy meter used for billing must have a test output. An optical indication is mandatory. Beside this the meter can also have electrical test outputs.

The Principle of Three-Phase Generators

We have a nice three phase power supply in our home, but where does it come from? And why does the waveform has a sine shape?

Accelerated Life Test for Energy Meters

There are several ways to predict the reliability of an energy meter. The IEC provides a series of standards related to reliability tests or evaluations.

How does Net metering work?

When you are generating power by solar or wind, you might produce more energy than you actually need.

Is there a Lifetime Calibration?

Electronic energy meters are adjusted for life-time. A recalibration has to be done by country rules and regulations.

What will be the recorded demand?

What will be the recorded demand if a constant load of 1 kW is applied through a 30 minute demand meter ?

How to get a Clear Tamper Token?

A clear tamper token is required to unlock a STS meter showing the tamper sign. Only the local power company can issue this token code.

What is a Load-Switch?

A latching relay keeps its contact position indefinitely without power applied to the coil.

Make the Most of Portable Meter Test

In order to protect the utility revenue it's essential to do regular on-site tests on meter installations.

Johannesburg Ransomware Attack

Cyberattacks against critical infrastructure have become common…

Security for Optical Ports on Energy Meters

Optical ports provide local access for service engineers during installation or maintenance of energy meters. Households have physical access to their energy meter and might try to get access to...

European Accreditation

The European Accreditation Association has per country one member. This members are allowed to approve test laboratories for calibration.