skip to main content

SciTech ConnectSciTech Connect

Title: The Effect of Current-Limiting Reactors on the Tripping of Short Circuits in High-Voltage Electrical Equipment

The insertion of current-limiting reactors into electrical equipment operating at a voltage of 110 and 220 kV produces a change in the parameters of the transient recovery voltages at the contacts of the circuit breakers for disconnecting short circuits, which could be the reason for the increase in the duration of the short circuit, damage to the electrical equipment and losses in the power system. The results of mathematical modeling of the transients, caused by tripping of the short circuit in a reactive electric power transmission line are presented, and data are given on the negative effect of a current-limiting resistor on the rate of increase and peak value of the transient recovery voltages. Methods of ensuring the standard requirements imposed on the parameters of the transient recovery voltages when using current-limiting reactors in the high-voltage electrical equipment of power plants and substations are proposed and analyzed.
Authors:
; ; ;  [1]
  1. National Research University “Moscow Power Engineering Institute,” (Russian Federation)
Publication Date:
OSTI Identifier:
22469557
Resource Type:
Journal Article
Resource Relation:
Journal Name: Power Technology and Engineering (Print); Journal Volume: 49; Journal Issue: 5; Other Information: Copyright (c) 2016 Springer Science+Business Media New York; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CIRCUIT BREAKERS; DAMAGE; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTRIC POWER; ELECTRICAL ENGINEERING; ELECTRICAL FAULTS; POWER SYSTEMS; POWER TRANSMISSION LINES; RESISTORS; TRANSIENTS