GB578137A - Improvements relating to hot cathode mercury vapour rectifying apparatus - Google Patents
Improvements relating to hot cathode mercury vapour rectifying apparatusInfo
- Publication number
- GB578137A GB578137A GB9817/44A GB981744A GB578137A GB 578137 A GB578137 A GB 578137A GB 9817/44 A GB9817/44 A GB 9817/44A GB 981744 A GB981744 A GB 981744A GB 578137 A GB578137 A GB 578137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- mercury vapour
- relay
- time
- switch
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1209—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for converters using only discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
Abstract
578,137. Mercury vapour rectifying apparatus. ELECTRIC FURNACE CO., Ltd., and KING, S. G. May 22, 1944, No. 9817. [Class 38 (ii)] The spare tubes in a hot-cathode mercury vapour rectifier equipment are arranged to be energised for a short period, to prevent deterioration, whenever the equipment is switched on. A time switch A<2> closes for a short time on switching on, and thus energises.contactor B having holding-in contacts B<1> in series with the normally-closed contacts C<1> of a relay C. The cathodes of the spare tubes E and the heater of a thermal time-delay switch F are energised from secondaries D<1>, D<2> of a transformer D on closure of contacts B<2>. The switch F closes after a time long enough to ensure heating of the cathodes E<1>, thus energising a relay F<1> and supplying a transformer G through contacts F<2>, B<3>. The ends of the secondary G2 are connected to the rectifier anodes E<2> and a centre-tap to a load resistance H, having in parallel with it a condenser K charged slowly through a resistance J<1>. At a predetermined condenser-voltage a neon lamp L strikes and passes current to the relay C thus opening the contacts C<1> to trip the contactor B.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9817/44A GB578137A (en) | 1944-05-22 | 1944-05-22 | Improvements relating to hot cathode mercury vapour rectifying apparatus |
| US606817A US2473151A (en) | 1944-05-22 | 1945-07-24 | Mercury vapor rectifying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9817/44A GB578137A (en) | 1944-05-22 | 1944-05-22 | Improvements relating to hot cathode mercury vapour rectifying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB578137A true GB578137A (en) | 1946-06-17 |
Family
ID=9879349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9817/44A Expired GB578137A (en) | 1944-05-22 | 1944-05-22 | Improvements relating to hot cathode mercury vapour rectifying apparatus |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2473151A (en) |
| GB (1) | GB578137A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2539208A (en) * | 1948-04-01 | 1951-01-23 | Westinghouse Electric Corp | Flame control device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1997011A (en) * | 1931-11-20 | 1935-04-09 | Rca Corp | Electrical control circuits for thermionic rectifiers |
| US2024019A (en) * | 1932-08-20 | 1935-12-10 | Electric Controller & Mfg Co | Electric weld controlling device |
| US2024953A (en) * | 1932-11-26 | 1935-12-17 | Gen Electric | Electric translating circuits and method of operating the same |
| US1969676A (en) * | 1933-01-27 | 1934-08-07 | Gen Electric | System of electrical distribution |
| US2070541A (en) * | 1934-08-09 | 1937-02-09 | Electric Storage Battery Co | Storage battery charge control |
| US2372698A (en) * | 1943-07-20 | 1945-04-03 | Mallory & Co Inc P R | Rectifier battery charger circuit |
-
1944
- 1944-05-22 GB GB9817/44A patent/GB578137A/en not_active Expired
-
1945
- 1945-07-24 US US606817A patent/US2473151A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2473151A (en) | 1949-06-14 |
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