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Title: Commutation circuit for an HVDC circuit breaker

Abstract

A commutation circuit for a high voltage DC circuit breaker incorporates a resistor capacitor combination and a charging circuit connected to the main breaker, such that a commutating capacitor is discharged in opposition to the load current to force the current in an arc after breaker opening to zero to facilitate arc interruption. In a particular embodiment, a normally open commutating circuit is connected across the contacts of a main DC circuit breaker to absorb the inductive system energy trapped by breaker opening and to limit recovery voltages to a level tolerable by the commutating circuit components.

Inventors:
 [1]
  1. (Scotia, NY)
Publication Date:
Research Org.:
General Electric Co
Sponsoring Org.:
USDOE
OSTI Identifier:
864041
Patent Number(s):
US 4300181
Assignee:
General Electric Company (Schenectady, NY) HQPR
DOE Contract Number:  
AC01-76ET29054
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
commutation; circuit; hvdc; breaker; voltage; dc; incorporates; resistor; capacitor; combination; charging; connected; main; commutating; discharged; opposition; load; current; force; zero; facilitate; interruption; particular; embodiment; normally; contacts; absorb; inductive; energy; trapped; limit; recovery; voltages; level; tolerable; components; charging circuit; circuit component; voltage dc; particular embodiment; circuit connected; circuit breaker; circuit components; load current; commutation circuit; resistor capacitor; commutating capacitor; dc circuit; /361/

Citation Formats

Premerlani, William J. Commutation circuit for an HVDC circuit breaker. United States: N. p., 1981. Web.
Premerlani, William J. Commutation circuit for an HVDC circuit breaker. United States.
Premerlani, William J. Thu . "Commutation circuit for an HVDC circuit breaker". United States. doi:. https://www.osti.gov/servlets/purl/864041.
@article{osti_864041,
title = {Commutation circuit for an HVDC circuit breaker},
author = {Premerlani, William J.},
abstractNote = {A commutation circuit for a high voltage DC circuit breaker incorporates a resistor capacitor combination and a charging circuit connected to the main breaker, such that a commutating capacitor is discharged in opposition to the load current to force the current in an arc after breaker opening to zero to facilitate arc interruption. In a particular embodiment, a normally open commutating circuit is connected across the contacts of a main DC circuit breaker to absorb the inductive system energy trapped by breaker opening and to limit recovery voltages to a level tolerable by the commutating circuit components.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}

Patent:

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