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Month: July 2020

Posted on 2020-07-312020-08-04

Where is the Basic Current?

meter current range

In the last 100 years we had a lovely Ib for direct connected meters. Now the name has changed to nominal current In.

Posted on 2020-07-312020-08-12

The Initial Start-Up for Energy Meters

initial start up time for meters with closed relays

Electronic energy meters are like small computers. The need some time for starting up.

Posted on 2020-07-292020-08-06

Influence of Fast Load Current Variations

Fast Load Current Variations Test Profile 1

The load current can vary frequently with high amplitude. The test conditions in the older versions of the IEC62052-11 have all be static…

Posted on 2020-07-292020-07-31

Repeatability Test for Energy Meters

CL710K11B

Another new test introduced by the IEC62052-11 Edition 2 is the repeatability test.

Posted on 2020-07-282020-07-29

Influence of Self Heating

r DTS718 1

We need to figure out whether the occurring internal heat is causing a temporary error drift above the allowed limits for variation.

Posted on 2020-07-282020-09-27

No Load Test for Energy Meters 2020

r CL3000

With publishing of the Edition 2 of IEC62052-11 the minimum run time calculation formula has changed.

Posted on 2020-07-242020-09-28

Odd Harmonics in the Current Circuit

phase fired waveform 45°

The edition 2 of the IEC62052-11 has introduced two additional tests for odd harmonics.

Posted on 2020-07-232020-07-24

Which Meter Constant should a Meter have?

constante del medidor

Higher constant means faster testing. The most time-savings are coming from the no-load test and the starting test.

Posted on 2020-07-222020-09-02

The Energy Meter Register Resolution

r CL710K16 SHORT 1

The main purpose of an electronic energy meter is the accurate metering of the customer consumption. The meter has registers for storing the various consumption values

Posted on 2020-07-222020-07-29

Short Interruption and Dip Tests IEC62052-11

IEC62052 11 Edition 2 voltage dip test 7

The International Electrotechnical Commission (IEC) has released the edition 2 of the IEC62052-11.

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