US1748133A - Vapor rectifier - Google Patents
Vapor rectifier Download PDFInfo
- Publication number
- US1748133A US1748133A US41128A US4112825A US1748133A US 1748133 A US1748133 A US 1748133A US 41128 A US41128 A US 41128A US 4112825 A US4112825 A US 4112825A US 1748133 A US1748133 A US 1748133A
- Authority
- US
- United States
- Prior art keywords
- rectifier
- potential
- anode
- electrodes
- metal container
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
Definitions
- Vapor rectifiers constructed of metal are frequently subject to transitory andquite. short-lived flashing over which is generally terminated by the sudden cutting out of the are in the defective phase. Such sudden interruptions in the Current cause an excess of potential in the inductances of the anode circuit with tl1e-resultthat the insulation of the rectifier installation is subjected to great stress and may be easily damaged. If, in
- sparking occurs from anode to anode a further flashing over of a more violent nature may be started. It is important therefore to provide means for preventing sparking from anode to anode by limiting the excess of potential to an amount that involves no risk.
- Exhaustive experiments have shown that when excess of potential occurs the metal container of the rectifier always assumes the potential of the normally working anodes, whilst the defective anode, i. e., the anode which has been acting as a cathode during the transitory flashing back,
- This invention consists of means for preventing excessive potential differences as between electrodes in vapor rectifiers constructed of metal, and in accordance therewithseveral paths for the current are provided between the circuits of the several electrodes and the metal container of the rectifier, such paths containing spark gaps and ohmic resistances.
- the spark. gaps are preferably adjusted for an excess of potential which is less than the value of the potential permissible for the insulation of the installation. The effect of this arrangement is that no dangerous excess potential dilierence can occur since evena slight rise will cause a spark discharge between the circuit of the 41,128, and in Germany August 8, 1924.
- the outer terminal of the winding Q is connected to the anode A and the outer terminal of the winding Q to the anode A D represents the cooling dome and K the cathode of the -rectifier.
- the load V is connected between the cathode K and the common terminal of the windings Q and Q
- the anode A is connected through the resistance VW and the spark gap F to the metal container Gr.
- the anode A is connected through the resistance and the spark gap F to the metal container G
- the cathode K is connected through the resistance and the spark gap F to the metal container G.
- This arrangement can be used also with advantage in the case of polyphase rectifiers.
- What I claim is 1.
- vapor apparatus for rectifying alternating current an insulated metal container, electrodes disposed in said metal container and insulated therefrom, and a spark gap and an ohmic resistance connected be tween each electrode and the metal container.
- transformer means Connecting said rectifier to said supply in rectifying relation with respect thereto, and means responsive to conditions tending to produce a predetermined potential differ.- ence between certain of said electrodes and being operable atsubstantially such conditions to provide an electrostatic discharge circuit between the electrode of higher potential and said container said last-named means including a discharge gap and a resistance in series therewith.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
Feb. 25, 1930. KERN 1,748,133
VAPOR RECTIFIER Filed July 2, 1925' WWW/WWW- W k 0' 0 i i 1 I WI 7 W2 IWA' A /m I A L": 2% r 5 0 H- -H-- T:::::} \K
Inventor Erwin Kerp Attorney Patented Feb. 25, 1930 UNITED STATES PATENT orricn ERWIN, KERN, OF WETTIN GEN, NEAR BADEN, SWITZERLAND, ASSIGNOR TQ AKTTEN- GESELLSCI-IAFT BROWN BOVERI & CIR, F BADEN, SWITZERLAND VAPOR RECTIFIER Application. filed July 2, 1925, Serial N'o.
Vapor rectifiers constructed of metal are frequently subject to transitory andquite. short-lived flashing over which is generally terminated by the sudden cutting out of the are in the defective phase. Such sudden interruptions in the Current cause an excess of potential in the inductances of the anode circuit with tl1e-resultthat the insulation of the rectifier installation is subjected to great stress and may be easily damaged. If, in
addition, sparking occurs from anode to anode a further flashing over of a more violent nature may be started. It is important therefore to provide means for preventing sparking from anode to anode by limiting the excess of potential to an amount that involves no risk. Exhaustive experiments have shown that when excess of potential occurs the metal container of the rectifier always assumes the potential of the normally working anodes, whilst the defective anode, i. e., the anode which has been acting as a cathode during the transitory flashing back,
shows a high potential as compared with the metal container. 1
This invention consists of means for preventing excessive potential differences as between electrodes in vapor rectifiers constructed of metal, and in accordance therewithseveral paths for the current are provided between the circuits of the several electrodes and the metal container of the rectifier, such paths containing spark gaps and ohmic resistances. The spark. gaps are preferably adjusted for an excess of potential which is less than the value of the potential permissible for the insulation of the installation. The effect of this arrangement is that no dangerous excess potential dilierence can occur since evena slight rise will cause a spark discharge between the circuit of the 41,128, and in Germany August 8, 1924.
ing the halves Q} and Q The outer terminal of the winding Q is connected to the anode A and the outer terminal of the winding Q to the anode A D represents the cooling dome and K the cathode of the -rectifier. The load V is connected between the cathode K and the common terminal of the windings Q and Q The anode A is connected through the resistance VW and the spark gap F to the metal container Gr. Similarly, the anode A is connected through the resistance and the spark gap F to the metal container G, and the cathode K is connected through the resistance and the spark gap F to the metal container G. With this arrangement it is immaterial which of the electrodes assumes a high potential, since there will always be a sufficiently early discharge to the metal container to prevent its reaching a point of danger. Thus the limit for the potential which an electrode may reach can be fixed beforehand by the adjustment of the I spark gap.
This arrangement can be used also with advantage in the case of polyphase rectifiers.
What I claim is 1. In vapor apparatus for rectifying alternating current, an insulated metal container, electrodes disposed in said metal container and insulated therefrom, and a spark gap and an ohmic resistance connected be tween each electrode and the metal container.
2.'In a system for rectifying alternating current, an alternating current supply, a metal vapor rectifier comprising a metal container and electrodes disposed in the latter and insulated therefrom, transformer means connecting said rectifier to said supply in rectifying relation with respect thereto,
and means responsive to conditions tending to produce a predetermined potential difference between certain of said electrodes and being operable at substantially such conditions to provide anelectrostatic discharge circuit between the electrode of higher potential and said container.
3. In a system for rectifying alternating I current, an alternating current supply, a
container and electrodes disposed in the latter and insulated therefrom, transformer means Connecting said rectifier to said supply in rectifying relation with respect thereto, and means responsive to conditions tending to produce a predetermined potential differ.- ence between certain of said electrodes and being operable atsubstantially such conditions to provide an electrostatic discharge circuit between the electrode of higher potential and said container said last-named means including a discharge gap and a resistance in series therewith.
4:. In apparatus of the sort described, the combination with the rectifier casing, anodes and anode supply windings, of a spark gap and ohmic resistance providing an excessvoltage shunt between the casing andsupply windings. A
. 5. In apparatus of the sort described, the combination with the rectifier casing and electrodes, of a spark gap and ohmicresistance providing an excess-voltage shunt between the casing and electrodes. 7
6. In apparatus of the sortdescribed, the
combination with the rectifier casing and electrodes, of a spark gap and ohmic resistance providing an excess-Voltage shunt between the casing and respective electrodes.
Dated this 16th day of June, 1925.
- ERWIN KER-N.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA42811D DE439847C (en) | 1924-08-08 | 1924-08-08 | Metal vapor rectifier |
Publications (1)
Publication Number | Publication Date |
---|---|
US1748133A true US1748133A (en) | 1930-02-25 |
Family
ID=6933297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US41128A Expired - Lifetime US1748133A (en) | 1924-08-08 | 1925-07-02 | Vapor rectifier |
Country Status (4)
Country | Link |
---|---|
US (1) | US1748133A (en) |
AT (1) | AT103686B (en) |
CH (1) | CH114589A (en) |
DE (1) | DE439847C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1045559B (en) * | 1950-02-24 | 1958-12-04 | Fuji Electric Co Ltd | Multi-phase arrangement of single-anode iron rectifiers, which are jointly cooled by cooling water |
-
1924
- 1924-08-08 DE DEA42811D patent/DE439847C/en not_active Expired
-
1925
- 1925-07-02 US US41128A patent/US1748133A/en not_active Expired - Lifetime
- 1925-07-02 CH CH114589D patent/CH114589A/en unknown
- 1925-07-10 AT AT103686D patent/AT103686B/en active
Also Published As
Publication number | Publication date |
---|---|
DE439847C (en) | 1927-01-20 |
CH114589A (en) | 1926-04-01 |
AT103686B (en) | 1926-07-10 |
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