the nnw-trending dena fault, with 140 km length, cuts the major structures of zagros fold-thrust belt in borujen region. the fault has divided the region in two zones, in which different structural, andmorphological features as well assedimentation and seismtectonic characteristics have developed. this study presents a new interpretation for the kinematics of dena fault based on field evidence....

Microgrid properties including bidirectional power flow in feeders, fault level decrease the islanded mode, and intermittent nature of distributed generators (DGs) result malfunctioning microgrid conventional protection schemes. In present article, a scheme based on impedance is suggested for detection LV MV overhead cable distribution lines both grid-connected modes. To determine index, new eq...

Detection of High Impedance Fault (HIF) that is mainly occurred in MV power systems has been a challenge due to its low current magnitude. A new HIF detection approach based on correlation functions is applied on the voltage and current signals in this paper. Twelve indices based on correlation functions are implemented and tried on a lot of cases. Some of them which have clearly different valu...

Fault detection is an important issue in today’s distribution networks, the structure of which becoming more complex. In this article, a data-based Cauchy weighting M-estimate RVFLNs method proposed for short-circuit fault networks. The detects short circuits based on current and voltage measurements. addition, noises were added to data ensure robustness method. performance was examined RTDS RT...

High Impedance Faults (HIF) are faults of difficult detection and location while using traditional digital relaying. In this article it is presented a new proposal for detection and location of HIF’s in distribution systems with distributed generation (DG), based on artificial neural networks. The methodology inputs are the local measured voltage and current phase components, supplying as outpu...

This paper presents the impact of the Static Synchronous Compensator (STATCOM) on the performance of distance protection of EHV transmission lines. A 400kV transmission system having midpoint connected STATCOM with its control circuit is modeled using MATLAB/SIMULINK software. The impact of STATCOM on distance relay for different fault conditions and different fault locations is analyzed. Simul...

Most industrial digital circuits contain three-state elements besides pure logic gates. This paper presents a gate delay fault simulator for combinational circuits that can handle three-state elements like bus drivers, transmission gates and pulled busses. The well known delay faults − "slow-to-rise" and "slow-to-fall" − are considered as well as delayed transitions from isolating signal state ...

Power quality is an important concern once automation is present in almost all industrial process. Since fault occurrences affects the power quality considerably, in this paper is proposed a new fault location method applied to transmission lines constituted of any configuration, as example double circuit, untransposed sections, and multiple derivations. In order to locate the fault, the method...