Article 4.1.1.1 : Why Neutral current An value comes in EN8410 & EN8400 if there is no current in neutral?

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• Article 2.0.2C : Why neutral current is high in some meters?

  This situation will occur due to unbalanced PF and harmonics, For idle calculation, let us assume the current is 50A and all phases operate at 0.5Lg. So the calculation will be (50 * cos 60) + (50 * cos 180) + (50 * cos 300) = 25 - 50 + 25 = 0. We ...

• Article 4.1.1.24S: PF value not show accurate in EN meters compare to reference meter.

  Solution: PF value depends on current and voltage phase angle. First, check the voltage Phase angle in the meter it should be 0, 120, 240.  and verify the CT and PT connection in meter accordingly RYB. An issue on the site: PF value does not change ...

• Article 4.1.1.3 : Why in EN meter only one phase PF & KW value comes very less and KWh consumption is less with reference main meter?

  Please find the below images of the EN meter display to understand the situation of a meter. As shown in the above images we can see in the Y phase PF & KW is very less compare to the other two-phase. Here KW depends on the PF value because of PF ...

• Article 4.1.1.2 : Total KVA is less than the individual RYB per phase KVA summation in EN8400/EN8410.

  Please find the below image of EN meter FYR. In EN8400 has interchanged CT S1 and S2 in the B phase and minus value comes in the KW B phase. Also, neutral current An = 5.9 A  comes and as shown in image total KVA does not match the addition of ...

• Article 2.1A : Relation between Line Current and Phase Current.

  Line current is the current through any one line between a three-phase source and load. Phase current is the current through any one component comprising a three-phase source or load. Fig: 1 STAR connection Line & Phase relation. Fig: 2 DELTA ...