Article 4.7.2L : What is the current input range for ELR?

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• 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 ...

• Article 4.7.2F : In iELR, which CT is used and also mention the input current ratios.

  CBCT is used in iELR. Input current range is 60mA - 12A.

• 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 4.7.2J : What are the technical specification of iELR for Input, trip time Input Current and CBCT inner diameter available relay contacts?

  Input current range from 60mA to 12A and trip time programmable from 300mS to 30Seconds. Inner diameters: 40mm,65mm,100mm,150mm ,200mm,250mm and 300mm.

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

  What is the neutral current in a 3 phase system? The neutral current in a three-phase, four-wire wye system represents the imbalance of the three-phase conductors, also known as the "hot" conductors. If the three hot conductors are equal, as in the ...