Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables

Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables

The knowledge of ground return current in fault occurrence plays a key role in the dimensioning of the earthing grid of substations and of cable sealing end compounds, in the computation of rise of earth potential at substation sites and in electromagnetic interference (EMI) on neighbouring parallel metallic conductors (pipes, handrails, etc.). Moreover, the ground return current evaluation is ...

A Novel ±0.5V Ultra High Current Drive and Output Voltage Headroom Current Output Stage with Very High Output Impedance

A novel ultra-high compliance, low power, very accurate and high output impedance current output stage (COS) with extremely high output current drive capability is proposed in this paper. The principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by HSPICE simulation in TSMC 0.18µm CMOS, BSIM3, and Level4...

Return to Work in COVID-19: Review of Current Guidelines

Background and aims: Coronavirus Disease 2019 (COVID-19) is mainly a respiratory disease which is caused by the SARS-CoV-2 Virus. The outbreak first began in Wuhan, China, in December 2019 and then expanded globally. COVID-19 can result in illness ranging from mild to severe. However, some of the affected individuals might be asymptomatic. Symptoms of the disease may appear in as few as 2 days...

Alternating current loss in a cylinder with power-law current-voltage characteristic

Studies on Alternating Current Electrolysis IV. Mathematical Treatment of Reversible Electron Transfer with Alternating Voltage Control and Distorted Current

A mathemat ica l t r ea tmen t is developed which yields equations re la t ing fa rada ic current , voltage, and t ime when an a l te rna t ing vol tage is appl ied to an e lect rolyt ic cell composed of a p lane and aux i l i a ry electrodes immersed in a solut ion containing in i t ia l ly suppor t ing e lec t ro ly te and only r eve r s ib ly oxidizable or reduc ib le species. Both ox idant ...