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:
-
- Scotia, NY
- Issue Date:
- Research Org.:
- General Electric Co., Boston, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 864041
- Patent Number(s):
- 4300181
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- 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. 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 = {1981},
month = {1}
}
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