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Single pole rapid reclosing: effective damping of ehv switching surges through discharge resistors

Journal Article:

Abstract

The stability of interconnecting circuits is very important and loss of synchronism of a complete network due to a temporary single-phase fault is operationally and economically undesirable. The use of grounding resistors together with load-break isolators which can be electrically or mechanically coupled to the circuit-breakers yield interesting possibilities in extra-high-voltage networks. The three problems, i.e., discharging of charged lines, damping of switching surges, and single-pole rapid-reclosing, can be solved through the use of a number of similar resistors and load-break isolators connected in series according to the voltage. The thermal and electrical stresses of the resistors can be kept within permissible limits. The time required for arc extinction and the limits in respect of length of lines will have to be determined by actual tests. For single-pole rapid-reclosing during a single-phase earth fault the switching operations on both sides of the line must be simultaneous. Because of the very small divergence of the opening and making times of modern circuit-breakers it will be sufficient only to synchronise the operating impulse.
Authors:
Publication Date:
Apr 30, 1965
Product Type:
Journal Article
Reference Number:
EDB-78-089375
Resource Relation:
Journal Name: Electr. Rev. (London); (United Kingdom); Journal Volume: 176
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; EHV AC SYSTEMS; STABILITY; SURGES; CIRCUIT BREAKERS; ELECTRIC DISCHARGES; POWER TRANSMISSION LINES; RESISTORS; SWITCHES; USES; AC SYSTEMS; ELECTRICAL EQUIPMENT; EQUIPMENT; EQUIPMENT PROTECTION DEVICES; POWER SYSTEMS; 200301* - Power Transmission & Distribution- AC Systems, EHV & UHV- (-1989)
OSTI ID:
6812594
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ELREA
Submitting Site:
TIC
Size:
Pages: 668-671
Announcement Date:

Journal Article:

Citation Formats

Heinemann, T. Single pole rapid reclosing: effective damping of ehv switching surges through discharge resistors. United Kingdom: N. p., 1965. Web.
Heinemann, T. Single pole rapid reclosing: effective damping of ehv switching surges through discharge resistors. United Kingdom.
Heinemann, T. 1965. "Single pole rapid reclosing: effective damping of ehv switching surges through discharge resistors." United Kingdom.
@misc{etde_6812594,
title = {Single pole rapid reclosing: effective damping of ehv switching surges through discharge resistors}
author = {Heinemann, T}
abstractNote = {The stability of interconnecting circuits is very important and loss of synchronism of a complete network due to a temporary single-phase fault is operationally and economically undesirable. The use of grounding resistors together with load-break isolators which can be electrically or mechanically coupled to the circuit-breakers yield interesting possibilities in extra-high-voltage networks. The three problems, i.e., discharging of charged lines, damping of switching surges, and single-pole rapid-reclosing, can be solved through the use of a number of similar resistors and load-break isolators connected in series according to the voltage. The thermal and electrical stresses of the resistors can be kept within permissible limits. The time required for arc extinction and the limits in respect of length of lines will have to be determined by actual tests. For single-pole rapid-reclosing during a single-phase earth fault the switching operations on both sides of the line must be simultaneous. Because of the very small divergence of the opening and making times of modern circuit-breakers it will be sufficient only to synchronise the operating impulse.}
journal = {Electr. Rev. (London); (United Kingdom)}
volume = {176}
journal type = {AC}
place = {United Kingdom}
year = {1965}
month = {Apr}
}