GB975511A - Apparatus for the supply of direct current to,for example,a welding process - Google Patents
Apparatus for the supply of direct current to,for example,a welding processInfo
- Publication number
- GB975511A GB975511A GB281761A GB281761A GB975511A GB 975511 A GB975511 A GB 975511A GB 281761 A GB281761 A GB 281761A GB 281761 A GB281761 A GB 281761A GB 975511 A GB975511 A GB 975511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- contacts
- energize
- closes
- supply
- 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
- 238000003466 welding Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 230000001934 delay Effects 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/26—Storage discharge welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
975,511. Protective cut-out arrangements; converting. KSM PRODUCTS Inc. Jan. 24, 1961 [Feb. 3, 1960 (2)], No. 2817/61. Headings H2F and H2K. An arrangement for the supply of D.C. for a welding process, e.g. stud welding, and including a transformer 10 and rectifiers 18, is protected against prolonged overloads by a relay 70 responsive to the rectifier output voltage and against short circuits by a relay 60 responsive to the rectifier output current, the relays causing the interruption of the supply with differing time delays. On the closure of main contacts 22 ... 26 the output voltage is sufficient for the relay 70 to open its contacts 72. When welding commences, the resulting drop in the output voltage permits the release of the relay and contacts 72 close to energize a time delay relay 40. This relay, after a predetermined time, closes its contacts 42 to energize a trip coil 20 and cause the opening of the contacts 22 ... 26. In the event of a short circuit, the relay 60 closes its contacts 62 to energize a time delay relay 30. The relay 30, after a short interval, closes its contacts 32 to energize the trip coil 20. In the event of overheating, a thermal switch disposed within the transformer closes contacts 52 to energize the trip coil 20.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US645560A | 1960-02-03 | 1960-02-03 | |
| US6454A US3029375A (en) | 1960-02-03 | 1960-02-03 | Stud welding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975511A true GB975511A (en) | 1964-11-18 |
Family
ID=26675653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB281761A Expired GB975511A (en) | 1960-02-03 | 1961-01-24 | Apparatus for the supply of direct current to,for example,a welding process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB975511A (en) |
-
1961
- 1961-01-24 GB GB281761A patent/GB975511A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1069093A (en) | Improved circuit breaker control system | |
| GB1142783A (en) | Improvements relating to protective arrangements including electric level-responsive circuits | |
| GB979458A (en) | Improvements in or relating to circuit arrangements for disconnecting a load from a direct current supply system | |
| GB1398892A (en) | Power switching apparatus | |
| GB975511A (en) | Apparatus for the supply of direct current to,for example,a welding process | |
| GB1438192A (en) | Breaker failure relay device | |
| GB837445A (en) | Improved safety control system including an electromagnetic control device operated by a time delay circuit | |
| GB735755A (en) | Improvements in and relating to the protection of electrical circuits | |
| GB944588A (en) | Improvements relating to electric protective systems | |
| US2585332A (en) | Electric controlling apparatus | |
| GB976862A (en) | Improvements in or relating to automatic circuit breakers | |
| GB907473A (en) | Electric arc welding method and apparatus | |
| GB1106423A (en) | Electrical alarm or circuit breaking devices | |
| GB1047940A (en) | Static time-lag overcurrent relay | |
| ES345359A1 (en) | Power Supply Device | |
| JPS56117173A (en) | Automatic tester for protective relay | |
| GB950183A (en) | Improvements in and relating to electrical circuits employing transistor networks | |
| GB883660A (en) | Improvements in and relating to electrical protective relay systems | |
| GB932754A (en) | Improvements relating to electrical control systems for devices such as circuit breakers or contactors | |
| GB838238A (en) | Improvements in or relating to voltage responsive relay circuit arrangements | |
| GB723052A (en) | Electro-magnetic, automatically-operated safety switch | |
| GB876787A (en) | A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents | |
| GB942891A (en) | Source of auxiliary direct current | |
| GB1295130A (en) | ||
| GB874760A (en) | Electrical protective system |