GB1250292A - - Google Patents
Info
- Publication number
- GB1250292A GB1250292A GB1250292DA GB1250292A GB 1250292 A GB1250292 A GB 1250292A GB 1250292D A GB1250292D A GB 1250292DA GB 1250292 A GB1250292 A GB 1250292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- voltage
- thyristors
- betatron
- way
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
- G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
- G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
- G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
- G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control
Abstract
1,250,292. Control systems for consuming apparatus. BROWN BOVERI & CO. Ltd. 31 March, 1970 [2 April, 1969], No. 15267/70. Heading H2H. [Also in Division G3] Apparatus for continuously varying the A.C. voltage supplied to a load by way of a quadripole network has one terminal of an A.C. source connected to one of the quadripole input terminals by means of a pair of anti-parallel controlled rectifiers, the same A.C. source terminal also being connected by a further pair of antiparallel controlled rectifiers, to a tapping on a voltage divider connected across the input terminals of the quadripole network. An oscillatory load LC, such as a betatron, is supplied from an A.C. source U by way of a quadripole network in the form of a transformer Tr, the primary winding of which constitutes a voltage divider connected across the quadripole input terminals. One of the terminals of the source U is connected to one of the terminals of the primary winding by anti-parallel thyristors T 1 , T 3 , and by anti-parallel thyristors T 2 , T 4 to a tapping on the primary winding of the transformer Tr. In operation the betatron is energized in three phases, in the first two of which the voltage applied thereto is gradually increased and in the third phase the applied voltage is maintained constant'at a desired value. The first operational phase is initiated application of a signal E in which enables registers S 1 , S 6 , starts a timing clock pulse generator TG and a function generator FG which latter generator produces a rising voltage signal U ST . The signal U ST is fed to pulse generators W 5 (the cross hatched element being duplicated) to develop output pulses A, B which are in antiphase to one another. These pulses are supplied to a register S 5 , at this time inhibited, and to an AND gate 14 thereby to control thyristors T 1 , T 3 by way of OR gates 15, AND gates 1, amplifiers 2, transformers 3 and rectifiers 4 so as to conduct for increasing periods. When a certain current value is sensed by a current transformer W 1 a Schmidt trigger G 1 is operated which stops the operation of the function generator FG, full conduction of the thyristors T 1 , T 3 being maintained however by a monostable delay circuit t 1 for a predetermined time, say 50 m. sees. At the end of this time t 1 resets and the function generator FG restarts to begin the second operational stage of the betatron. The function generator again develops a rising voltage signal U ST which produces antiphase signals AB as before. During this phase the register S 5 is enabled so that the signals A, B control both pairs of thyristors T 2 , T 4 and T 1 , T 3 in a firing order T 1 -T 2 -T 3 -T 4 under control of a voltage limiter P responsive to signals generated by a current transformer W 2 . When the load current of the betatron reaches, say 95% of its full value, the signal from a current transformer W 3 triggers a Schmidt circuit C 2 which by way of a register S 6 stops the function generator FG, and by way of an AND circuit 13 enables the W 3 signal to be compared with a set value signal SW in an amplifier device R, the error signal from which is fed to the pulse generator W 5 thus to control the thyristors T 1 -T 4 to produce a constant voltage at the betatron terminals.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH504569A CH497746A (en) | 1969-04-02 | 1969-04-02 | Arrangement for continuously changing the output-input voltage ratio of a quadrupole used for energy transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1250292A true GB1250292A (en) | 1971-10-20 |
Family
ID=4287010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1250292D Expired GB1250292A (en) | 1969-04-02 | 1970-03-31 |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH497746A (en) |
FR (1) | FR2041119A7 (en) |
GB (1) | GB1250292A (en) |
NL (1) | NL7004509A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012108363A1 (en) * | 2012-09-07 | 2014-06-12 | Aeg Power Solutions Gmbh | Method of changing sine voltage to rated voltage in single phase power supply, involves changing voltage between outer and neutral conductors and closing or opening a switch during successive periodic cycles to modulate induced voltage |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2214601A1 (en) * | 1972-03-25 | 1973-09-27 | Reinhausen Maschf Scheubeck | AUTOMATIC REGULATING DEVICE FOR CONTROLLING TAP SWITCHES |
DE2633071C3 (en) * | 1976-07-22 | 1980-10-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Control arrangement for an AC power controller |
-
1969
- 1969-04-02 CH CH504569A patent/CH497746A/en not_active IP Right Cessation
-
1970
- 1970-03-27 FR FR7011153A patent/FR2041119A7/fr not_active Expired
- 1970-03-31 GB GB1250292D patent/GB1250292A/en not_active Expired
- 1970-03-31 NL NL7004509A patent/NL7004509A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012108363A1 (en) * | 2012-09-07 | 2014-06-12 | Aeg Power Solutions Gmbh | Method of changing sine voltage to rated voltage in single phase power supply, involves changing voltage between outer and neutral conductors and closing or opening a switch during successive periodic cycles to modulate induced voltage |
Also Published As
Publication number | Publication date |
---|---|
NL7004509A (en) | 1970-10-06 |
CH497746A (en) | 1970-10-15 |
FR2041119A7 (en) | 1971-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |