Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1992-03-09
1995-03-14
Hoff, Marc S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361 56, 361111, 361113, H02H 900
Patent
active
053981502
ABSTRACT:
A protective device for electric loads coupled to power circuits, such as the ac power lines inside buildings, has a surge suppressor including a nonlinear surge-protective device in shunt with a resistor-capacitor damping network. This suppressor circuit is well coordinated with a suitable arrester connected to the power lines, for example at the point of entry of ac supply mains into the building. The arrester has a lower voltage protection level than the surge suppressor. This suppressor circuit limits transient voltages at the load and also damps the oscillatory surges that occur in a power connection as described.
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General Electric data sheet for 520 v. Tranquell.RTM. secondary surge arrester, May 31, 1983, U.S.A.
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IEC Publication 664, pp. 14-15; Jun. 1991.
Dehn & Soehne GmbH
Hoff Marc S.
Jackson S.
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