36
Per quadrant Aggregate
kvarh Q1 ph 1
kvarh Q1 agg
kvarh Q2 ph 1
kvarh Q2 agg
kvarh Q3 ph 1
kvarh Q3 agg
kvarh Q4 ph 1
kvarh Q4 agg
kvarh Q1 ph 2
kvarh Q2 ph 2
kvarh Q3 ph 2
kvarh Q4 ph 2
kvarh Q1 ph 3
kvarh Q2 ph 3
kvarh Q3 ph 3
kvarh Q4 ph 3
Apparent Energy - 8 Quantities
Per phase Direction Aggregate Direction
kVAh ph 1+ Import
kVAh agg+ Import
kVAh ph 1- Export
kVAh agg - Export
kVAh ph 2+ Import
kVAh ph 2- Export
kVAh ph 3+ Import
kVAh ph 3- Export
Depending on the meter configuration, apparent energy is calculated by one of the following methods:
• Arithmetical
Multiplication of the RMS voltage and current values.
S = Urms . Irms (true apparent power - this method gives good results above Ib/10)
• Vectorial
Quadratic sum of active and reactive powers.
S = (P²+ Q²) (this method is more precise at low currents)
Note: The arithmetical method is not available on meters configured for 3 wire operation, therefore, the apparent
energy calculation will be done using the vectorial method.
To Next Page
Loading...
Need help?
General
