How to determine the compensation capacity
Answer: Considering the power class load, it is estimated that the power factor of the distribution transformer is around 0.75, and the power factor is designed to increase to 0.90 at full load. Assuming that the distribution capacity is S, the active power, reactive power and power factor angles before compensation are P1, Q1, and φ1, respectively. After compensation, the active power, reactive power, and power factor angle are P2, Q2, and φ2, respectively. Qb is The capacity to be compensated.
From this, it can be concluded that the capacity to be compensated is: Qb=Q1-Q2=S×sinφ1-S×sinφ2=S×(0.661-0.436)=0.225S The compensation percentage is: η%=Qb/S×100%=22.5 % According to the operating experience of the grid, the compensation capacity is generally 20% to 30% of the rated capacity of the transformer.
Steel cross arms of different configurations are used on overhead lines, transmission towers, transmission lines, wood poles, utility poles, power poles, and light poles.
To make the steel cross arm more stable, there will be two cross arm braces to support the main cross arm by delta connection.
Steel Cross Arm&brace,Hollow Steel Bracket For Pole Supporting,Hdg Cross Arm For Supporting,Channel Cross Arm Brace
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