Measured Impedance Characteristic of T-connection Transmission Line with DG

Causal Characteristic Impedance of Planar Transmission Lines

We compute power-voltage, power-current, and causal definitions of the characteristic impedance of microstrip and coplanar-waveguide transmission lines on insulating and conducting silicon substrates, and compare to measurement.

Evaluating the Transient Impedance of Transmission Line Towers

The low-frequency methods used by most utilities nowadays for measuring the resistance of transmission line ground electrodes are inaccurate or cannot be applied when overhead groundwires are connected to the towers. Moreover, many of them are costly and time consuming. This paper proposes and compares two new methods for evaluating the transient impedance of transmission line towers. Both meth...

Effects of CT and VT Connection Point on Distance Protection of Transmission Lines with FACTS Devices

This paper presents the effects of instrument transformers connection points on the measured impedance by distance relays in the presence of Flexible Alternating Current Transmission System (FACTS) devices with series connected branch. Distance relay tripping characteristic itself depends on the power system structural conditions, pre-fault operational conditions, and especially the ground ...

Characteristic Impedance, Power, and Causality

A new causal power-normalized waveguide equivalent-circuit theory determines uniquely both the magnitude and phase of the characteristic impedance of a waveguide.

Algebraic Theory of Characteristic Classes of Bundles with Connection