Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient nonresponsive
Patent
1986-08-01
1987-10-06
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transient nonresponsive
361 55, 361 56, 361 91, 361119, 361111, H02H 104
Patent
active
046987215
ABSTRACT:
A power line filter suppresses or dissipates and clamps short rise time high voltage transients carried by power transmission lines and provides continuous protection against continuous type induced noise. The power line filter includes one or more modules connected to either direct current or alternating current power lines to protect sensitive electrical equipment from the transients and continuous noise. The module used with a direct current power line includes a continuous suppressor connected between a source and load, and a selenium surge suppressor and a metal oxide varistor connected in parallel across the source. The module used with an alternating current power line includes a continuous suppressor connected between the source and the load, and a selenium surge suppressor and a gas tube connected in parallel across the source. The module used with the alternating current power line can also include a metal oxide varistor also connected in parallel across the source. The alternating current power line filter modules can be connected to single phase, two-phase or three-phase wye and delta power systems. The power line filter module provides instantaneous reaction to noise transients and a broad range of energy dissipation or shunting capability along with protection from continuous type noise.
REFERENCES:
patent: 2939095 (1960-05-01), Chertok
patent: 4023071 (1977-05-01), Fussell
patent: 4259705 (1981-03-01), Stifter
patent: 4616286 (1986-10-01), Breece
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"Hardening Techniques"--Godts et al., 1979 IEEE International Symposium on Electromagnetic Compatability, Seattle, WA, 2-4 Aug. 1977.
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"Protecting Electronic Gear from Unexpected Energy Surges", Graham A. Clarkson, Telephony, Mar. 5, 1979, pp. 34-36.
"Protecting Electronic Equipment from Uncontrolled Energy Bursts", Graham A. Clarkson, Telephony, Feb. 19, 1979, pp. 86-88.
"Protection: Prescriptions for an Old Surging Headache", Graham A. Clarkson, Telephony, Feb. 12, 1979, pp. 24-29.
Gaffin Jeffrey A.
Pellinen A. D.
Puroflow Corp.
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