GB601811A - Improvements in or relating to the control of alternating current electric supply circuits - Google Patents
Improvements in or relating to the control of alternating current electric supply circuitsInfo
- Publication number
- GB601811A GB601811A GB3530745A GB3530745A GB601811A GB 601811 A GB601811 A GB 601811A GB 3530745 A GB3530745 A GB 3530745A GB 3530745 A GB3530745 A GB 3530745A GB 601811 A GB601811 A GB 601811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifier
- coil
- short
- circuit
- contactor
- 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
- 230000001808 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000006011 modification reaction Methods 0.000 abstract 1
- 230000002441 reversible Effects 0.000 abstract 1
- 230000001360 synchronised Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/56—Switching-on; Switching-off
Landscapes
- X-Ray Techniques (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
601,811. Supply systems for consumption apparatus. GENERAL ELECTRIC CO., Ltd. and STEADMAN, E. J. Dec. 31, 1945, No. 35307. [Class 38 (iv)] An arrangement for ensuring that a load circuit, more particularly an X-ray contactor coil 2, is operatively connected to an A.C. supply 11 at the zero point of the A.C. cycle, comprises rectifiers 9, 10 connected in series opposition with the coil such that at least the first rectifier to become conducting, is short circuited upon current flowing through it. Closure of an exposure switch 11 energizes, when the A.C. supply polarity is correct, the relay 19 through rectifier 9. Relay contact 17 thereupon closes to complete the circuit for the coil 22 of relay 20 through rectifier 10 which becomes conducting upon reversal of supply polarity also to energize simultaneously, the contactor coil 2 and a clutch coil 23 coupling a timing device (not shown) to a synchronous motor 15. Relay contact 18 closes to short circuit the rectifier 10 and the contactor coil remains energized until its circuit is opened by contacts 12 of the timing device. Resistance 24 may be adjusted to cause the contactor to open at the zero point in the A.C. cycle. In modifications, Figs. 2 and 3, not shown, an additional rectifier and associated short circuiting contacts may be provided in order to avoid the use of high speed short circuiting relays in the arrangement shown. The short-circuiting contacts of the third rectifier may be operated by the contactor coil 2. Specification 601,808, [Group XXXVII], is referred to.
Publications (1)
Publication Number | Publication Date |
---|---|
GB601811A true GB601811A (en) | 1948-05-12 |
Family
ID=1744249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3530745A Expired GB601811A (en) | 1945-12-31 | Improvements in or relating to the control of alternating current electric supply circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB601811A (en) |
-
1945
- 1945-12-31 GB GB3530745A patent/GB601811A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3184670A (en) | Control system for reversing motor rotation | |
US2037565A (en) | Control system | |
US3389324A (en) | Regulated battery chargers | |
GB603129A (en) | Improvements in and relating to electromagnets | |
GB601811A (en) | Improvements in or relating to the control of alternating current electric supply circuits | |
US2135045A (en) | Control for welding generators | |
USRE21980E (en) | circuit controlling system | |
GB627723A (en) | Improvements in or relating to electrical timing relays | |
US1983656A (en) | Motor control | |
US2210412A (en) | Motor control system | |
US3475670A (en) | Control circuit | |
US3241074A (en) | Device for sensing the contour of electric pulses | |
US3118089A (en) | Phase-sensitive device | |
US2487171A (en) | Motor control system | |
GB1199660A (en) | Improved Contactor Operating Circuit | |
GB471361A (en) | Improvements in and relating to systems of electric motor control | |
US1647418A (en) | Electric rectifier | |
SU736375A1 (en) | Static switch | |
GB615081A (en) | Electric battery charging system | |
US1958250A (en) | Speed responsive means | |
SU67346A1 (en) | Device for sympathetic drive control | |
SU95236A1 (en) | Synchronous generator voltage regulator | |
GB698595A (en) | Device for switching on a transformer for a short time interval | |
US1967907A (en) | Control system | |
US1694039A (en) | Safety stop for searchlights |