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Title: High energy overcurrent protective device

Abstract

Electrical loads connected to capacitance elements in high voltage direct current systems are protected from damage by capacitance discharge overcurrents by connecting between the capacitance element and the load, a longitudinal inductor comprising a bifilar winding wound about a magnetic core, which forms an incomplete magnetic circuit. A diode is connected across a portion of the bifilar winding which conducts a unidirectional current only. Energy discharged from the capacitance element is stored in the inductor and then dissipated in an L-R circuit including the diode and the coil winding. Multiple high voltage circuits having capacitance elements may be connected to loads through bifilar windings all wound about the aforementioned magnetic core.

Inventors:
 [1]
  1. (Palos Park, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
864394
Patent Number(s):
US 4358808
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
energy; overcurrent; protective; device; electrical; loads; connected; capacitance; elements; voltage; direct; current; systems; protected; damage; discharge; overcurrents; connecting; element; load; longitudinal; inductor; comprising; bifilar; winding; wound; magnetic; core; forms; incomplete; circuit; diode; portion; conducts; unidirectional; discharged; stored; dissipated; l-r; including; coil; multiple; circuits; windings; aforementioned; circuit including; direct current; protective device; magnetic circuit; magnetic core; electrical load; unidirectional current; voltage direct; voltage circuit; capacitance element; electrical loads; loads connected; current systems; /361/

Citation Formats

Praeg, Walter F. High energy overcurrent protective device. United States: N. p., 1982. Web.
Praeg, Walter F. High energy overcurrent protective device. United States.
Praeg, Walter F. Fri . "High energy overcurrent protective device". United States. https://www.osti.gov/servlets/purl/864394.
@article{osti_864394,
title = {High energy overcurrent protective device},
author = {Praeg, Walter F.},
abstractNote = {Electrical loads connected to capacitance elements in high voltage direct current systems are protected from damage by capacitance discharge overcurrents by connecting between the capacitance element and the load, a longitudinal inductor comprising a bifilar winding wound about a magnetic core, which forms an incomplete magnetic circuit. A diode is connected across a portion of the bifilar winding which conducts a unidirectional current only. Energy discharged from the capacitance element is stored in the inductor and then dissipated in an L-R circuit including the diode and the coil winding. Multiple high voltage circuits having capacitance elements may be connected to loads through bifilar windings all wound about the aforementioned magnetic core.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}

Patent:

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