Transformer correction values in BFM136-ECT01 (100mA).


All meters manufactured before June, 1, 2017 are calibrated with old CTs box built of QuadLogic CTs - 100A/100mA.

During installation the technician must be aware about the following rule:

    1. All the current channels connected to QuadLogic CTs should have the transformer Correction: 

           50-200A/100mA - 1.000, 0; 

           400A-600A/100Am - 0.999, -20

    2. All the current channels connected to SATEC CTs (EL0148, EL0149, EL0150) should have the transformer Correction: 

          0.998, -23.

See below the example with:

            I1, I2, I3 connected to QuadLogic CTs - 100A;

            I4, I5, I6 connected to QuadLogic CTs - 400A; 

            I7, I8, I9 connected to SATEC CTs.


Since June, 1, 2017 all the meter are manufactured with new CTs box built of SATEC CTs - EL0148 100A/100mA.

The meters contain the transformer Correction: 1.002, 23 at all current channels. This correction meets QuadLogic CTs 100A/100mA connection.

In case of QuadLogic CTs 400A-600A/100mA connection the correction should be changed to 1.001, 3.

In case of SATEC CTs connection the correction should be changed to 1.000, 0

See below the example with I1, I2, I3 connected to QuadLogic CTs - 100A, I4, I5, I6 connected to QuadLogic CTs - 400A, I7, I8, I9 connected to SATEC CTs.

Note: All the meters, which is manufactured after June, 1, 2017 will have the change into the report:

The meter option:

OPTION ECT01-QL