Glow Wire Test: Resistance to Heat and Fire
The glow wire flammability test is used to simulate the effect of heat that may occur in malfunctioning electrical energy meters, such as when components are overloaded or glowing.
March 20, 2023
November 12, 2022
The Effects of Renewable Energy on Power Quality in the Grid
Power grid operators need to consider the total harmonic distortion. It has to be maintained as low as practicably possible. Higher power factor, lower peak currents, and more efficiency result from decreased THD in the grid.
March 15, 2022
Meter Constant- or Register Test?
The proper energy registration is the essential part for energy meters. Bills are issued according to the register readings.
August 9, 2021
Self-Consumption in the Current Circuit
The IEC 62052-11 has a tiny little detail about the power consumption in the current circuit.
August 2, 2021
The Energy Meter Power Consumption
Power consumption is part of the technical losses. The utilities are bearing these costs. The end-user is not charged.
March 1, 2021
Measurement Uncertainties for Test Benches
A test bench consists of several elements which can introduce additional variable errors.
August 28, 2020
Maximum Current for Energy Meters
Energy meters have certain characteristics, including maximum current. It is the basis for all types of meter tests.
August 27, 2020
Markings on the Case of Energy Meters
The IEC 62052-11 Edition 2 has introduced some changes for the meter marking and documentation. Today we cover the mandatory content of the nameplate for IEC meters.
August 19, 2020
Ring Wave Immunity Test
The IEC 62052-11 Ed.2 comes with a lot of changes for meter type testing. Another new introduced test for electromagnetic compatibility (EMC) is the ring wave immunity test.
August 12, 2020
Electrostatic Discharge Test for Energy Meters
Sometimes it happens that you touch the door knob and you get an electrical shock. It’s not dramatically for your body but an unpleasant feeling.
August 10, 2020
The Stability of IEC Standards
Meter manufacturers, utility laboratories and type testing institutes have planning security until year 2025.
August 10, 2020
The Critical Change Value
The critical change value indicates the maximum amount of change allowed in the meter’s energy registers during disturbance tests without any current flowing in the meter’s current circuits.
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