Method for measuring the intensity of electric field and magnetic field exposed to power frequency by substation operators during patrol

Abstract

The invention relates to a method for measuring contacted power frequency electric field intensity and magnetic field intensity when operating personnel of a transformer substation inspect. The method can most really reflect the level of the contacted power frequency electric field intensity and magnetic field intensity when the operating personnel of the transformer substation inspect. The method includes the detailed steps that A, an inspection route map, inspection time T for single inspection and inspection route total distance L of the operating personnel are recorded; B, inspection route inspection points where the operating personnel need to stay and stay time tn in all the inspection points (tn expresses the stay time in the n inspection point) are recorded; C, equal-distance point distribution is performed on an inspection route, the distance D between distribution points can be selected freely, and the larger the D is, the lower the accuracy of an obtained result is; D, power frequency electric field intensity and magnetic field intensity of all the inspection points and all the distribution points are detected; E, calculating and analyzing are performed on the contacted power frequency electric field intensity and magnetic field intensity when the operating personnel inspect, so that the level of the contacted power frequency electric field intensity and magnetic field intensity when the operating personnel of the transformer substation is obtained.

Description

Technical field: [0001] The invention relates to a method for measuring the strength of power frequency electric field and power frequency magnetic field, in particular to a method for measuring the strength of power frequency electric field and magnetic field that operators of substations are in contact with when patrolling. Background technique: [0002] The power frequency electric field and power frequency magnetic field are the main factors that may cause harm to the human body in the substation. The daily work of the substation operators is mainly on-site inspection and monitoring in the control room. The power-frequency electric field and magnetic field in the control room are relatively small, and are less harmful to operators. Operators are exposed to high-intensity power-frequency electric fields and magnetic fields mainly from on-site patrol operations. [0003] Studies have shown that the impact of power frequency electric fields and power frequency magnetic fiel...

AI Technical Summary

Problems solved by technology

[0004] At present, there are not many studies on the intensity of power-frequency electric field and power-frequency magnetic field that operators are exposed to, and there is a lack of measurement methods for the intensity of power-frequency electric field and power-frequency magnetic field that operators of substations are exposed to during inspections.