US1944403A - Arc extinguishing chimney - Google Patents
Arc extinguishing chimney Download PDFInfo
- Publication number
- US1944403A US1944403A US602331A US60233132A US1944403A US 1944403 A US1944403 A US 1944403A US 602331 A US602331 A US 602331A US 60233132 A US60233132 A US 60233132A US 1944403 A US1944403 A US 1944403A
- Authority
- US
- United States
- Prior art keywords
- arc
- chimney
- arc extinguishing
- extinguishing
- extinguishing chimney
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
Definitions
- the present invention relates to arc extinguishing means for circuit breakers and the like.
- the energy absorbed bythe arc struck between suitable electrodes creates 5 caloriflc effects of an importance dependent on the intensity of the current traversing the arc.
- the arc In apparatus comprising arc extinguishing means utilizing a gas under pressure, the arc always tends to maintain itself owing to the pressure it creates around itself, which pressure counteracts the action of the extinguishing fluid.
- the object of the present invention is to pro4 zo vide means whereby the pressure created by the arc will not oppose the action of the extinguishing uid. It is characterized by devices whereby the medium highly compressed by the heat of the arc is allowed to expand, in order notl to hinder z5 the influx of the extinguishing fluid.
- Fig. 1 shows diagrammatically in sectional elevation a circuit breaker with compressed gasl blow out.
- Fig. 2 shows the same apparatus in' end elevation.
- Fig. 3 shows a transverse section of the apparatus shown in Fig. 1.
- the main contacts of the circuit breaker are shown at a and the blow out contacts at b.
- Arc extinguishing device in air, by means of i a gaseous blast, comprising chimney means to direct an arc extinguishing gaseous blast, and contacts disposed inside the chimney and between which an arc is adapted to be lengthenec said chimney having an inlet opening for the gaseous blast at one extremity and an outlet opening at the other extremity, and auxiliary openings adjacent the arc, to enable part of the gases created by the arc to escape intol the atmosphere.
- a device as claimed in claim 1 comprising a diverging-wall chimney having auxiliary apertures disposed adjacent the arc, and chambers open to the atmosphere wherein the auxiliary apertures open.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
.18.11.23, 1934. AQCLERC' Anc x'rmeursmu :mmm
Filed Maron 31, 1932 Patented Jan. 23, 1934 ARC EXTINGUISHING CHIMNEY 4Andr Clerc, Villeurbanne, France Application March 31, 1932, Serial No. 602,331, and in Germany May 21, 1931 3 Claims.
The present invention relates to arc extinguishing means for circuit breakers and the like.
In these devices, the energy absorbed bythe arc struck between suitable electrodes creates 5 caloriflc effects of an importance dependent on the intensity of the current traversing the arc.
When this current is of the order of several thousand amperes the development of the arc is always accompanied by an explosive phenomenon produced by a sudden elevation of the surrounding medium temperature. When the arc is conned in a limited space, its high temperature produces a sudden pressure increase in the whole space.
In apparatus comprising arc extinguishing means utilizing a gas under pressure, the arc always tends to maintain itself owing to the pressure it creates around itself, which pressure counteracts the action of the extinguishing fluid.
The object of the present invention is to pro4 zo vide means whereby the pressure created by the arc will not oppose the action of the extinguishing uid. It is characterized by devices whereby the medium highly compressed by the heat of the arc is allowed to expand, in order notl to hinder z5 the influx of the extinguishing fluid.
The annexed drawing shows an embodiment of the invention.
Fig. 1 shows diagrammatically in sectional elevation a circuit breaker with compressed gasl blow out.
Fig. 2 shows the same apparatus in' end elevation.
Fig. 3 shows a transverse section of the apparatus shown in Fig. 1.
The main contacts of the circuit breaker are shown at a and the blow out contacts at b. The
in which the arc is struck and communicating with two chambers i opened to the atmosphere. The gases produced and compressed by the arc expand laterally, escape .into the chambers i and are thus evacuated to the exterior. Said gases therefore, react very lightly, or none at all on the arc extinguishing gas; thus, at the next passage through zero of the current flowing through the arc, the space surrounding the blow out contacts, which during the whole duration of 6.' the arc has been'swept by the injected gas, is entirely cleared. Consequently, the arc being extinguished before a secondcycle of the current occurs, re-arcing is effectively prevented in a sure and simple manner. I
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:
1. Arc extinguishing device, in air, by means of i a gaseous blast, comprising chimney means to direct an arc extinguishing gaseous blast, and contacts disposed inside the chimney and between which an arc is adapted to be lengthenec said chimney having an inlet opening for the gaseous blast at one extremity and an outlet opening at the other extremity, and auxiliary openings adjacent the arc, to enable part of the gases created by the arc to escape intol the atmosphere. i
2. An extinguishing device as claimed in claim 1, wherein the auxiliary openings are so disposed, in the chimney, that the gases created by the arc escape perpendicularly to the direction of the arc and that of the gaseous blast.
3. A device as claimed in claim 1, comprising a diverging-wall chimney having auxiliary apertures disposed adjacent the arc, and chambers open to the atmosphere wherein the auxiliary apertures open.
ANDR CLERC.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1944403X | 1931-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1944403A true US1944403A (en) | 1934-01-23 |
Family
ID=7750655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US602331A Expired - Lifetime US1944403A (en) | 1931-05-21 | 1932-03-31 | Arc extinguishing chimney |
Country Status (3)
Country | Link |
---|---|
US (1) | US1944403A (en) |
BE (1) | BE388499A (en) |
FR (1) | FR737263A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443017A (en) * | 1944-07-18 | 1948-06-08 | Gen Electric | Electric arc extinguishing apparatus |
US2452221A (en) * | 1945-08-27 | 1948-10-26 | Pacific Electric Mfg Corp | Fluid blast arc extinguishing circuit breaker |
US2623139A (en) * | 1950-08-05 | 1952-12-23 | Allis Chalmers Mfg Co | Arc chute with trap for products of arcing |
US2623140A (en) * | 1950-10-07 | 1952-12-23 | Allis Chalmers Mfg Co | Arc runner with trap for products of arcing |
US2632828A (en) * | 1947-01-15 | 1953-03-24 | Asea Ab | Arrangement in electric air blast circuit breaker |
US2648743A (en) * | 1950-12-28 | 1953-08-11 | Allis Chalmers Mfg Co | Exhaust passage and trap means coextensive with arc runners |
US2761935A (en) * | 1952-07-30 | 1956-09-04 | David C Prince | Circuit breaker |
US2942084A (en) * | 1957-08-30 | 1960-06-21 | Allis Chalmers Mfg Co | Circuit breaker employing perforated flue means adjacent arc runners |
US3214548A (en) * | 1962-01-24 | 1965-10-26 | Westinghouse Electric Corp | Gas-blast circuit interrupters with both stationary and movable pneumatically-operated contacts |
US3649791A (en) * | 1969-07-02 | 1972-03-14 | Bbc Brown Boveri & Cie | Arc chute for electrical switch apparatus |
US3668352A (en) * | 1969-11-27 | 1972-06-06 | Magrini Fab Riun Scarpa | Blast orifice unit for self-blasting compressed gas electric circuit-breakers |
US4019006A (en) * | 1973-02-05 | 1977-04-19 | Siemens Aktiengesellschaft | Overcurrent and short circuit protection device |
-
0
- BE BE388499D patent/BE388499A/xx unknown
-
1932
- 1932-03-31 US US602331A patent/US1944403A/en not_active Expired - Lifetime
- 1932-05-18 FR FR737263D patent/FR737263A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443017A (en) * | 1944-07-18 | 1948-06-08 | Gen Electric | Electric arc extinguishing apparatus |
US2452221A (en) * | 1945-08-27 | 1948-10-26 | Pacific Electric Mfg Corp | Fluid blast arc extinguishing circuit breaker |
US2632828A (en) * | 1947-01-15 | 1953-03-24 | Asea Ab | Arrangement in electric air blast circuit breaker |
US2623139A (en) * | 1950-08-05 | 1952-12-23 | Allis Chalmers Mfg Co | Arc chute with trap for products of arcing |
US2623140A (en) * | 1950-10-07 | 1952-12-23 | Allis Chalmers Mfg Co | Arc runner with trap for products of arcing |
US2648743A (en) * | 1950-12-28 | 1953-08-11 | Allis Chalmers Mfg Co | Exhaust passage and trap means coextensive with arc runners |
US2761935A (en) * | 1952-07-30 | 1956-09-04 | David C Prince | Circuit breaker |
US2942084A (en) * | 1957-08-30 | 1960-06-21 | Allis Chalmers Mfg Co | Circuit breaker employing perforated flue means adjacent arc runners |
US3214548A (en) * | 1962-01-24 | 1965-10-26 | Westinghouse Electric Corp | Gas-blast circuit interrupters with both stationary and movable pneumatically-operated contacts |
US3649791A (en) * | 1969-07-02 | 1972-03-14 | Bbc Brown Boveri & Cie | Arc chute for electrical switch apparatus |
US3668352A (en) * | 1969-11-27 | 1972-06-06 | Magrini Fab Riun Scarpa | Blast orifice unit for self-blasting compressed gas electric circuit-breakers |
US4019006A (en) * | 1973-02-05 | 1977-04-19 | Siemens Aktiengesellschaft | Overcurrent and short circuit protection device |
Also Published As
Publication number | Publication date |
---|---|
BE388499A (en) | |
FR737263A (en) | 1932-12-09 |
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