High energy overcurrent protective device

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864394

Praeg, Walter F ^[1]

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1. Palos Park, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4358808
• OSTI ID: 864394
• Country of Publication: United States
• Language: English

Related Subjects

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
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