Journal of Wind Energy / 2013 / Article / Tab 1 / Research Article
Influences of Wind Energy Integration into the Distribution Network Table 1 Allowable limit for distribution transformer (DT) loading, voltage regulation, and harmonics [
11 ,
12 ].
Attributes Recommended limit Regulatory standard DT loading 80% of the installed capacity, withstand up to 120% Inverter capacity 10 kVA for single phase 30 kVA for three phase AS 4777 [11 ] Voltage regulation Allowable limit is
6%, that is, 240 V
6% for single phase and 415 V
6% for three-phase systems Voltage rise due to PV at PCC is 1% at 240 V line to neutral voltage. AS 4777 [11 ] Harmonics THD up to 50th harmonic should be less than 5% voltage harmonic limit to 8%. AS 4777 [11 ]