GB1432607A – Voltage regulator
– Google Patents
GB1432607A – Voltage regulator
– Google Patents
Voltage regulator
Info
Publication number
GB1432607A
GB1432607A
GB2282273A
GB2282273A
GB1432607A
GB 1432607 A
GB1432607 A
GB 1432607A
GB 2282273 A
GB2282273 A
GB 2282273A
GB 2282273 A
GB2282273 A
GB 2282273A
GB 1432607 A
GB1432607 A
GB 1432607A
Authority
GB
United Kingdom
Prior art keywords
voltage
limits
voltage regulator
operational amplifier
amplifier
Prior art date
1972-05-15
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
Application number
GB2282273A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
1972-05-15
Filing date
1973-05-14
Publication date
1976-04-22
1973-05-14
Application filed by Individual
filed
Critical
Individual
1976-04-22
Publication of GB1432607A
publication
Critical
patent/GB1432607A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F5/00—Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output
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
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
Abstract
1432607 Automatic control of voltage R W BECKWITH 14 May 1973 [15 May 1972] 22822/73 Heading G3R An A.C. voltage regulator for an electrical distribution system sums a signal dependent upon the system voltage with two signals proportional to the system current, one in phase with, and the other phase shifted relative to, the current, and controls the voltage (e.g. by tap changing) if the summation is outside a selected range. As shown, the signals are obtained from transformers T4, T 1 and T 2 and summed with a reference value by operational amplifier Q 1 . This amplifier includes a diode D4 and feedback thermistor Rt I to provide a temperature independent half-wave rectifier, summer and line drop compensator. The output of amplifier Q 1 , which is proportional to the rms value of the sensed voltage, passes through a double-T filter and is compared in operational amplifiers Q3, Q4 with pre-set limits, set by potentiometers R28, R29 across a stabilized supply from voltage regulator Q2. If outside these limits, as indicated by light emitting diodes L 1 , L 2 , a timer T 10 including operational amplifier Q 6 is started to turn on transistors Q 8 , Q 1 0 . If the voltage is still outside the limits when the timer T 1 0 times out i.e. transistors Q 8 , Q 10 are turned off, the signal from operational amplifier Q3 or Q4 passes via Zener diodes D 11 or D 12 , turning on triacs Q 1 1 or Q 1 2 until the voltage falls within the pre-set limits. The triacs may control a motor driving a tap changing transformer, buck or boost autotransformer, induction voltage regulator or the field of an A.C. generator. The load may be an arc furnace.
GB2282273A
1972-05-15
1973-05-14
Voltage regulator
Expired
GB1432607A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US25342572A
1972-05-15
1972-05-15
Publications (1)
Publication Number
Publication Date
GB1432607A
true
GB1432607A
(en)
1976-04-22
Family
ID=22960211
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2282273A
Expired
GB1432607A
(en)
1972-05-15
1973-05-14
Voltage regulator
Country Status (6)
Country
Link
US
(1)
US3721894A
(en)
CA
(1)
CA985368A
(en)
DE
(1)
DE2310894A1
(en)
FR
(1)
FR2184619A1
(en)
GB
(1)
GB1432607A
(en)
SE
(1)
SE386520B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2190219A
(en)
*
1986-05-03
1987-11-11
Nicholas John Hiscock
Voltage control for high voltage power transformers
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3940572A
(en)
*
1974-04-24
1976-02-24
Dracon Industries
Power supply for key telephone system
US3908163A
(en)
*
1974-11-01
1975-09-23
Allis Chalmers
Bandwidth limit circuit for step voltage regulator
US3913007A
(en)
*
1974-11-01
1975-10-14
Allis Chalmers
Static control for step voltage regulator
US4105964A
(en)
*
1976-11-30
1978-08-08
Lebedev Vladimir Konstantinovi
Voltage regulation and stabilization device
US4323838A
(en)
*
1981-02-09
1982-04-06
Beckwith Electric Co., Inc.
RMS Controlled load tap changing transformer
US5428551A
(en)
*
1992-09-23
1995-06-27
Siemens Energy & Automation, Inc.
Tap changer monitor apparatus and method
US5804954A
(en)
*
1995-06-26
1998-09-08
Siemens Energy & Automation, Inc.
Analog based tap position detector
GB2426392B
(en)
*
2003-12-09
2007-05-30
Nujira Ltd
Transformer based voltage supply
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1801240C3
(en)
*
1968-10-04
1971-05-06
Eckardt Ag J
Regulator circuit
DE1904258A1
(en)
*
1969-01-29
1970-08-06
Licentia Gmbh
Transistorized control circuit to achieve an IU characteristic with non-linear consumers
US3678370A
(en)
*
1970-10-30
1972-07-18
Forbro Design Corp
Voltage limiting circuit for constant current power supplies
US3651393A
(en)
*
1971-04-21
1972-03-21
Lorain Prod Corp
Current equalizing circuit
1972
1972-05-15
US
US00253425A
patent/US3721894A/en
not_active
Expired – Lifetime
1972-12-01
CA
CA158,472A
patent/CA985368A/en
not_active
Expired
1973
1973-02-07
SE
SE7301667A
patent/SE386520B/en
unknown
1973-03-05
DE
DE19732310894
patent/DE2310894A1/en
active
Pending
1973-04-20
FR
FR7314642A
patent/FR2184619A1/fr
not_active
Withdrawn
1973-05-14
GB
GB2282273A
patent/GB1432607A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2190219A
(en)
*
1986-05-03
1987-11-11
Nicholas John Hiscock
Voltage control for high voltage power transformers
GB2190219B
(en)
*
1986-05-03
1990-06-13
Nicholas John Hiscock
A voltage control scheme for high voltage power transformers
Also Published As
Publication number
Publication date
SE386520B
(en)
1976-08-09
FR2184619A1
(en)
1973-12-28
CA985368A
(en)
1976-03-09
DE2310894A1
(en)
1973-11-22
US3721894A
(en)
1973-03-20
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Legal Events
Date
Code
Title
Description
1976-09-08
PS
Patent sealed [section 19, patents act 1949]
1977-05-11
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1982-12-15
PCNP
Patent ceased through non-payment of renewal fee
