GB367872A - Improvements in automatic electric cut-outs - Google Patents
Improvements in automatic electric cut-outsInfo
- Publication number
- GB367872A GB367872A GB2897530A GB2897530A GB367872A GB 367872 A GB367872 A GB 367872A GB 2897530 A GB2897530 A GB 2897530A GB 2897530 A GB2897530 A GB 2897530A GB 367872 A GB367872 A GB 367872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- cut
- toggle
- circuit
- coil
- 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
- 238000010438 heat treatment Methods 0.000 abstract 3
- 230000000979 retarding effect Effects 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000011435 rock Substances 0.000 abstract 2
- 239000012212 insulator Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE382776D BE382776A (en(2012)) | 1930-09-27 | ||
GB2897530A GB367872A (en) | 1930-09-27 | 1930-09-27 | Improvements in automatic electric cut-outs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2897530A GB367872A (en) | 1930-09-27 | 1930-09-27 | Improvements in automatic electric cut-outs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB367872A true GB367872A (en) | 1932-02-29 |
Family
ID=10284223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2897530A Expired GB367872A (en) | 1930-09-27 | 1930-09-27 | Improvements in automatic electric cut-outs |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE382776A (en(2012)) |
GB (1) | GB367872A (en(2012)) |
-
0
- BE BE382776D patent/BE382776A/xx unknown
-
1930
- 1930-09-27 GB GB2897530A patent/GB367872A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE382776A (en(2012)) |
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