Electrical Current Transformer error curve verification steps

- Dec 14, 2020-

⑴Calculate the multiple of the primary current flowing through the Electrical Current Transformer according to the type of protection device; ⑵Determine the allowable secondary load of the Electrical Current Transformer on the 10% error curve according to the model, transformation ratio and primary current multiple of the Electrical Current Transformer; The most serious short-circuit type of the secondary load of the Electrical Current Transformer, calculate the actual secondary load of the Electrical Current Transformer; ⑷ compare the actual secondary load with the allowable secondary load. If the actual secondary load is less than the allowable secondary load, it means that the error of the Electrical Current Transformer does not exceed 10%.