In the area with weak power grid

supply of the electricity for some oil and gas pipeline substations with overlength transmission line often results in Faraday Effect

so dynamic reactive compensation devices shall be equipped in the substations.However

the discussion on the calculation method of reactive compensation capacity is in general only to capacitive reactive capacity determination for inductive loads;and the discussion about calculation method of inductive reactive power compensation capacity is relatively rare.Aiming at this problem

this paper puts forward five methods for determining inductive reactive compensation capacity

gives a detailed introduction of those five methods with Hexi substation as a typical calculation example and

finally

determines through comparative analysis the suitable methods for calculating inductive reactive compensation capacity of oil and gas substation powered by the overlength transmission line.This study can provide reference for the determination of reactive compensation capacity at power supply terminal substations by the overlength line.