The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper deals with protective relaying issues in relation to connecting the distributed generation sources into the distribution network. The considerations on fault conditions in the networks with incorporated distributed generation sources are analyzed. Protective relaying for such sources is considered. An impact of the sources on fault currents and operating conditions of protective relaying...
The paper presents an adaptive procedure for digital distance protection device that allows to compensate for the negative influence of the reactance effect, caused by fault resistance and pre-fault power flow. The procedure utilizes locally measured phase currents and voltages and has been designed to operate with double-circuit power lines. The algorithm calculates on-line shift vector components...
This paper presents a new method for locating faults on three-terminal power lines. Estimation of a distance to fault and indication of a faulted section is performed using three-phase current from all three terminals and additionally three-phase voltage from the terminal at which a fault locator is installed. Such a set of synchronized measurements has been taken into consideration with the aim of...
This paper deals with the post-fault analysis of operation of distance protective relays from the line terminals. The signals of the digital distance relays are processed in the off-line regime with the aim of evaluating the particular relay operation case. First, the program enables the emulation of the fault loop impedance measurements of the distance relays. Second, the two-end unsynchronized measurements...
This paper deals with the post-fault analysis of operation of distance protective relays from the line terminals. The signals of the digital distance relays are processed in the offline regime with the aim of evaluating the particular relay operation case. Firstly, the program enables to imitate the fault loop impedance measurements of the distance relays. Secondly, the two-end unsynchronized measurements...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.