WO2007031038A2 - Voltage regulation system - Google Patents
Voltage regulation system Download PDFInfo
- Publication number
- WO2007031038A2 WO2007031038A2 PCT/CZ2006/000059 CZ2006000059W WO2007031038A2 WO 2007031038 A2 WO2007031038 A2 WO 2007031038A2 CZ 2006000059 W CZ2006000059 W CZ 2006000059W WO 2007031038 A2 WO2007031038 A2 WO 2007031038A2
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- WIPO (PCT)
- Prior art keywords
- winding
- voltage
- transformer
- voltage source
- output
- Prior art date
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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
Definitions
- the invention relates to voltage regulators intended to power regulation of devices, especially of the devices connected in network systems, fed by electrical energy through these voltage regulators. Said voltage regulators are used for securing the network from undervoltage events, when some electrical devices could not work properly.
- the invention deals also with devices being able to compensate a wattles current.
- AC voltage regulators being in principle the AC voltage transformers, where from plurality of output taps, each having different voltage, a relevant tap is selected by switching, using contact-type or contactless switching and so the electrical output with selected voltage is obtained.
- a varying output voltage is possible to obtain by changing of magnetic saturation of a transformer core, too.
- contactless switching regulators especially concerning those based on voltage regulation by transformer core magnetic saturation changing, there appears a significant transformer loss under some working conditions. Said disadvantages are apparent especially in cases where a wide range voltage regulation is needed. Disclosure of the Invention
- the system consists of governing unit with at least information inputs from input and output voltage of the voltage regulation system, regulated voltage source, feedback relay and two transformers, where the first transformer is created as an autotransformer with a power winding and with a regulation winding with plurality of taps, and the second transformer is created as an usual transformer having separated power winding and regulation winding with two taps, and where both transformers having their winding on a toroidal cores, and further the beginning of power winding of the first transformer is connected to a terminal connector of a power input of tfte ' Whole voltage regulation system, while the end of this power winding is connected to a beginning of the power winding of the second transformer, and the end of power winding of the second transformer is connected to a terminal connector Bf power output of the whole voltage regulation system, and further one °of
- regulation winding taps of the first transformer is connected to the second regulatio ⁇ fwinding tap of the second transformer, while a regulation winding input of ⁇ he ⁇ second transformer is connected, over feedback reiay rest contacts, to a voltage tefrhiha ⁇ connector of the whole voltage regulation system power input and the regulation winding output of the second transformer is connected to a neutral wire terminal connector, and the regulation winding first tap of the second transformer is connected to a regulated output of a regulated voltage source, l' which is connected through the first governing linkage to the governing un ⁇ tr wh ⁇ e ' the second governing linkage provides a governing linkage from the governing Unit to the feedback relay.
- regulated voltage source it could be created as electronically regulated voltage source. It is advantageous, too, to create regulated voltage source as an autotransformer, having its winding on a toroidal core and having at least two different voltage outputs, or having one output with a regulated voltage, where the regulated voltage source autotransformer winding input is connected, through working contacts of feedback relay, to power input terminal connector of the whole voltage regulation system, while the regulated voltage source autotransformer winding output is connected to the neutral wire terminal connector.
- the governing unit of the whole system consists of low voltage source and a computer, which computer is connected by a governing linkage to the low voltage source, where on said source there are created outputs for being selectively connected to an output voltage of the low voltage source and simultaneously adjusted for being all the time connected to the winding of all relays in the regulated voltage source.
- the system for voltage regulation is created, where the range of regulation is wide and also, in case of a construction having mechanical contact switching of taps on the regulation winding of the second transformer, the switching relay contacts in the source of governing voltage would not be overloaded, in spite of switching under full system output load, what is possible because of extreme short time switching, for example in milliseconds, and because of switching provided in a time period when said relay contacts are loaded by very low current.
- the voltage regulation system according to the invention works with very low energy loss, usually under 1 % of system output power, and a reactive power is compensated here without using any capacitor, so that this voltage regulation system appears working like a compensated electrical distributor, equipped by capacitors.
- Fig. 1 is a circuit scheme of the whole voltage regulation system, the governing unit showing no details here
- Fig.2 is a scheme of the whole voltage regulation system, where the detailed equipment of the governing unit is to bee seen and the rest of the system is simplified. - - . - . . . ..
- the voltage regulation system consist of governing unit 5, regulated voltage source 3, feedback relay 4 and two transformers 1,2.
- Governing unit 5 is equipped by information inputs 501, resp. 502, which are connected to a terminal connector 10 of a power input, resp. to a terminal connector 100 of the power output of the whole system. So the governing unit 5 takes the basic information about a power input 10 voltage and about the immediate power output 100 voltage after a regulation action.
- the governing unit 5 is equipped here by parametric input 500, intended for delivering further information into this unit, in manual or automatic way.
- the voltage regulation system is created as follows.
- the first transformer 1 is created as an autotransformer, with a power winding H and with a regulation winding 12 with a plurality of taps 121
- the second transformer 2 is created as usual transformer with separated power winding 2J. and with regulation winding 22 with two taps 221,222, where both transformers 1,2 having their winding on toroidal cores, and where the beginning 111 of power winding H of the first transformer 1 is connected to a terminal connector 10 of a power intput of the whole voltage regulation system, while the end 1_12 of this power winding H is connected to a beginning 211 of the power winding 21 of the second transformer 2, and the end 212 of the power winding 21 of the second transformer 2 is connected to a terminal connector 100 of power output of the whole voltage regulation system, lahd 'f ⁇ rther one of regulation winding 12 taps 121 of the' first 'Mn ⁇ fofmel 5 t a is connected to the second regulation i, r wh'ile a regulation windi ⁇ cf j 22 input
- the first regulation wiriding c 22 tap : 22 ⁇ 1 of the second transformer 2 is connected to a regulated output, ' re ⁇ pv 'Ib ' output terminal connector 310 of a regulated voltage source 3, which is' corirtebted through the first governing linkage 30 to the governing unit 5, wh ⁇ leihe seci ⁇ nd governing linkage 40 provides a governing linkage from the governing ' unit ⁇ £> to the feedback relay 4 .
- the regulation winding 22 beginning, or input 2 ⁇ 0 " of the second transformer 2 is connected here, too, over a capacitor 6, to a 'neutral ! wire terminal connector 1000. Concerning the regulated voltage source 3, if could be created as electronically regulated voltage source.
- regulated voltage source 3 as an autotransformer 3_1, having its winding on a toroidal core and having at least two different voltage outputs or taps, where here these are the taps 3100 to 3109, so 10 taps with different voltage are created here.
- the regulated voltage source 3 autotransformer 31 outputs or taps 3100 to 3109 with different voltage being connected to the regulated voltage source 3 output terminal connector 3_10 through closing contacts 3200 to 3290 of 10 pieces of relays 320 to 329, which are adjusted for being initialised by the governing unit 5, through the first governing linkage 30.
- the governing unit 5 of the whole system consists of low voltage source 51 and a computer 52, which computer 52 is connected by a governing linkage 50 to the low voltage source 5_1, where on said source 5_1 there are created outputs 510 to 5_19 for being selectively connected to an output voltage of the low voltage source 5J. and simultaneously adjusted for being all the time connected to the winding of all relays 320 to 329 in the regulated voltage source 3.
- the feedback relay 4 is then governed by the governing unit 5 through the second governing linkage 40.
- the way of working of all the system is as follows.
- the main input from electrical network to the system for voltage regulation is provided through the power input terminal connector 10, while the load, which is fed by this system and the input voltage of which should be regulated, is connected t ⁇ ; the ! p ⁇ wer output terminal connector 100.
- a voltage o' ⁇ trfe Output power terminal connector IQO is regulated as follows.
- the computer 52 depending on its basic data and on information about system input and ' output voltage, which are delivered by information linkage 501 ,502, and by governing over governing linkage 50 and over low voltage source 51 and further over a second governing linkage 40, disconnects a voltage feeding of the feedback relay 4, so the working contact 42 of this relay is disconnected, too, and the rest contact 41 is engaged. Then the contacts of governing relays 320 to ⁇ 329 are initialised by governing linkage 30, where one relay is disconnected and then the other relay is connected, all in accordance to switching of the feedback relay 4, where opening and closing the contacts 3200 to 3290 is provided under no current and under no voltage appearing on those contacts.
- the feedback between the first transformer 1 and the second transformer 2 is supporting partly the voltage regulation and partly this feedback is supporting a compensation effect of this whole system for voltage regulation. Industrial applicability
- the system for voltage regulation according to the present invention is applicable above all for voltage regulation in electrical networks with alternating current, where huge electrical loads are fed and where the output of those devices fed is to be regulated by voltage changing, including changing both up and down, and where the energy loss should be minimized and reliability and life of this voltage regulation system should be maximized.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Voltage regulation system consisting of governing unit (5) with at least information inputs (501, 502) from input and output voltage of the voltage regulation system, regulated voltage source (3) feedback relay (4) and two transformers (1, 2), where the first transformer (1) is an autotransformer with a power winding (11) and with a regulation winding (12) with plurality of taps (121) and the second transformer (2) is an usual transformer having separated power winding (21) and regulation winding (22) with two taps (222, 223), and where both transformers (1, 2) having their winding on a toroidal cores, and the beginning (111) of power winding (11) of the first transformer (1) is connected to a terminal connector (10) of a power input of the whole voltage regulation system, while the end (112) of this power winding (11) is connected to a beginning (211) of the power winding (21) of the second transformer (2).
Description
Voltage regulation system
Technical Field
The invention relates to voltage regulators intended to power regulation of devices, especially of the devices connected in network systems, fed by electrical energy through these voltage regulators. Said voltage regulators are used for securing the network from undervoltage events, when some electrical devices could not work properly. The invention deals also with devices being able to compensate a wattles current.
Background art
A lot of types of AC voltage regulators are known at present. There exist, for example, voltage regulators, being in principle the AC voltage transformers, where from plurality of output taps, each having different voltage, a relevant tap is selected by switching, using contact-type or contactless switching and so the electrical output with selected voltage is obtained. A varying output voltage is possible to obtain by changing of magnetic saturation of a transformer core, too. Concerning a contact-type switching, especially by high-power systems, there appear troubles with life and reliability of switching contacts, when switching under load. Concerning contactless switching regulators, especially concerning those based on voltage regulation by transformer core magnetic saturation changing, there appears a significant transformer loss under some working conditions. Said disadvantages are apparent especially in cases where a wide range voltage regulation is needed.
Disclosure of the Invention
Said drawbacks are significantly reduced and an electrical regulating device, where wide range of voltage regulation and substantive energy saving is possible to gain, is created in voltage regulation system according to the invention, where the most substantive is that the system consists of governing unit with at least information inputs from input and output voltage of the voltage regulation system, regulated voltage source, feedback relay and two transformers, where the first transformer is created as an autotransformer with a power winding and with a regulation winding with plurality of taps, and the second transformer is created as an usual transformer having separated power winding and regulation winding with two taps, and where both transformers having their winding on a toroidal cores, and further the beginning of power winding of the first transformer is connected to a terminal connector of a power input of tfte' Whole voltage regulation system, while the end of this power winding is connected to a beginning of the power winding of the second transformer, and the end of power winding of the second transformer is connected to a terminal connector Bf power output of the whole voltage regulation system, and further one °of! regulation winding taps of the first transformer is connected to the second regulatioϊfwinding tap of the second transformer, while a regulation winding input of ϊhe^second transformer is connected, over feedback reiay rest contacts, to a voltage tefrhihaϊ connector of the whole voltage regulation system power input and the regulation winding output of the second transformer is connected to a neutral wire terminal connector, and the regulation winding first tap of the second transformer is connected to a regulated output of a regulated voltage source, l'which is connected through the first governing linkage to the governing unϊtr whϊϊe' the second governing linkage provides a governing linkage from the governing Unit to the feedback relay. It is advantageous when the regulation winding beginning of
the second transformer is connected, too, over a capacitor, to a neutral wire terminal connector. Concerning the regulated voltage source, it could be created as electronically regulated voltage source. It is advantageous, too, to create regulated voltage source as an autotransformer, having its winding on a toroidal core and having at least two different voltage outputs, or having one output with a regulated voltage, where the regulated voltage source autotransformer winding input is connected, through working contacts of feedback relay, to power input terminal connector of the whole voltage regulation system, while the regulated voltage source autotransformer winding output is connected to the neutral wire terminal connector. In said case it is advantageous, too, to create the output of regulated voltage source, having the output with regulated voltage, so that the output terminal connector of a regulated voltage source is connected to its autotransformer winding over a brush slider, a position of which is adjustable on said winding by a mechanical drive link between the brush slider and step motor, which is positioned by the governing unit of the whole voltage regulation system through the first governing linkage. As an alternative, there could be advantageous the regulated voltage source having-outputs with different voltage, which are connected to the regulated voltage source output terminal connector through closing contacts of at least two relays, which are adjusted for being initialised by the governing unit, through the first governing linkage. The governing unit of the whole system consists of low voltage source and a computer, which computer is connected by a governing linkage to the low voltage source, where on said source there are created outputs for being selectively connected to an output voltage of the low voltage source and simultaneously adjusted for being all the time connected to the winding of all relays in the regulated voltage source.
So the system for voltage regulation is created, where the range of regulation is wide and also, in case of a construction having mechanical contact switching of taps on the regulation winding of the second transformer, the switching relay contacts in the source of governing voltage would not be
overloaded, in spite of switching under full system output load, what is possible because of extreme short time switching, for example in milliseconds, and because of switching provided in a time period when said relay contacts are loaded by very low current. Above all, the voltage regulation system according to the invention works with very low energy loss, usually under 1 % of system output power, and a reactive power is compensated here without using any capacitor, so that this voltage regulation system appears working like a compensated electrical distributor, equipped by capacitors.
Brief Description of the Drawings
The invention is described in detail using following example, where Fig. 1 is a circuit scheme of the whole voltage regulation system, the governing unit showing no details here, and Fig.2 is a scheme of the whole voltage regulation system, where the detailed equipment of the governing unit is to bee seen and the rest of the system is simplified. - - . - . . .. ..
Best Mode for Carrying out the Invention
The voltage regulation system, according to the invention, consist of governing unit 5, regulated voltage source 3, feedback relay 4 and two transformers 1,2. Governing unit 5 is equipped by information inputs 501, resp. 502, which are connected to a terminal connector 10 of a power input, resp. to a terminal connector 100 of the power output of the whole system. So the governing unit 5 takes the basic information about a power input 10 voltage and about the immediate power output 100 voltage after a regulation action. The governing unit 5 is equipped here by parametric input 500, intended for delivering further information into this unit, in manual or automatic way. The voltage
regulation system is created as follows. The first transformer 1 is created as an autotransformer, with a power winding H and with a regulation winding 12 with a plurality of taps 121, and the second transformer 2 is created as usual transformer with separated power winding 2J. and with regulation winding 22 with two taps 221,222, where both transformers 1,2 having their winding on toroidal cores, and where the beginning 111 of power winding H of the first transformer 1 is connected to a terminal connector 10 of a power intput of the whole voltage regulation system, while the end 1_12 of this power winding H is connected to a beginning 211 of the power winding 21 of the second transformer 2, and the end 212 of the power winding 21 of the second transformer 2 is connected to a terminal connector 100 of power output of the whole voltage regulation system, lahd 'fϋrther one of regulation winding 12 taps 121 of the' first 'Mn^fofmel5 ta is connected to the second regulation
i, rwh'ile a regulation windiήcfj22 input 22Oj Of the seciancf'i.V^nέforifier'^i^ϊs connected, over feedback relay 4 rest contacts ' ^f1 Io'1 a Voltage^ terminal s connector 10 of the whole voltage regulation system power iϊiiptff alnάτ: !iϊfie regulation winding 22 output 223 of the second transformer12 is-cBilrtecieci1 ϊδ-'a neutraϊwire terminal connector 1000. and the first regulation wiridingc22 tap:22~1 of the second transformer 2 is connected to a regulated output,' reέpv 'Ib' output terminal connector 310 of a regulated voltage source 3, which is' corirtebted through the first governing linkage 30 to the governing unit 5, whϊleihe seciόnd governing linkage 40 provides a governing linkage from the governing' unit ■£> to the feedback relay 4 . The regulation winding 22 beginning, or input 2^0 "of the second transformer 2 is connected here, too, over a capacitor 6, to a 'neutral !wire terminal connector 1000. Concerning the regulated voltage source 3, if could be created as electronically regulated voltage source. This construction" is not described and shown here in detail, but this type of voltage source "is known and persons skilled in the art could create it or order it on usual market. It is advantageous, too, and this device is shown on Fig.2, to create regulated voltage source 3 as an autotransformer 3_1, having its winding on a toroidal core and
having at least two different voltage outputs or taps, where here these are the taps 3100 to 3109, so 10 taps with different voltage are created here. It is possible to create the output of regulated voltage source, having the output with regulated voltage, so that the output terminal connector of a regulated voltage source is connected to its autotransformer winding over a brush slider, a position of which could be adjustable on said winding by a mechanical drive link between the brush slider and step motor, which is positioned by the governing unit of the whole voltage regulating system through the first governing linkage. This type of construction is not here shown and described in detail. In all cases, as shown here, the input 311 °f regulated source 3 autotransformer 3J. winding is connected, over working contacts 41 of feedback relay 4, to the terminal connector 10 of the power input of the whole system, while in regulated voltage source 3 the autotransformer 3_1 winding output 312 is connected to neutral wire terminal connector 1000. What is further shown is the regulated voltage source 3 autotransformer 31 outputs or taps 3100 to 3109 with different voltage being connected to the regulated voltage source 3 output terminal connector 3_10 through closing contacts 3200 to 3290 of 10 pieces of relays 320 to 329, which are adjusted for being initialised by the governing unit 5, through the first governing linkage 30. The governing unit 5 of the whole system consists of low voltage source 51 and a computer 52, which computer 52 is connected by a governing linkage 50 to the low voltage source 5_1, where on said source 5_1 there are created outputs 510 to 5_19 for being selectively connected to an output voltage of the low voltage source 5J. and simultaneously adjusted for being all the time connected to the winding of all relays 320 to 329 in the regulated voltage source 3. As mentioned above, the feedback relay 4 is then governed by the governing unit 5 through the second governing linkage 40.
So, also here it is achieved the creating of a system for voltage regulation, where the range of regulation is wide and also, in case of a construction having mechanical contact switching of taps on the regulation winding of the second transformer, the switching relay contacts in the source of governing voltage would
not be overloaded, in spite of switching under full system output load, what is possible because of extreme short switching time, for example milliseconds duration switching, and because of switching provided in a time period when said relay contacts are loaded by very low current only. Above all, the voltage regulation system according to this example works with very low energy loss, here under 1 % of system output power, and a reactive power is compensated here without using any capacitor, so that this voltage regulation system appears working as a compensated electrical distributor, equipped by capacitors.
The way of working of all the system is as follows. The main input from electrical network to the system for voltage regulation is provided through the power input terminal connector 10, while the load, which is fed by this system and the input voltage of which should be regulated, is connected tό;the !pόwer output terminal connector 100. Under usual working procedure, a voltage o'ή trfe Output power terminal connector IQO is regulated as follows. The computer 52, depending on its basic data and on information about system input and 'output voltage, which are delivered by information linkage 501 ,502, and by governing over governing linkage 50 and over low voltage source 51 and further over a second governing linkage 40, disconnects a voltage feeding of the feedback relay 4, so the working contact 42 of this relay is disconnected, too, and the rest contact 41 is engaged. Then the contacts of governing relays 320 to ■ 329 are initialised by governing linkage 30, where one relay is disconnected and then the other relay is connected, all in accordance to switching of the feedback relay 4, where opening and closing the contacts 3200 to 3290 is provided under no current and under no voltage appearing on those contacts. What is substantive, under working of the voltage regulation system the feedback between the first transformer 1 and the second transformer 2 is supporting partly the voltage regulation and partly this feedback is supporting a compensation effect of this whole system for voltage regulation.
Industrial applicability
The system for voltage regulation according to the present invention is applicable above all for voltage regulation in electrical networks with alternating current, where huge electrical loads are fed and where the output of those devices fed is to be regulated by voltage changing, including changing both up and down, and where the energy loss should be minimized and reliability and life of this voltage regulation system should be maximized.
Claims
1. Voltage regulation system, c h a r a c t e r i z e d i n , that the system consists of governing unit (5) with at least information inputs (501,502) from input and output voltage of the voltage regulation system, regulated voltage source (3), feedback relay (4) and two transformers (1 ,2), where the first transformer (1) is created as an autotransformer with a power winding (11 ) and with a regulation winding (12) with plurality of taps (121 ), and the second transformer (2) is created as an usual transformer having separated power winding (21 ) and regulation winding (22) with two taps (222,223), and where both transformers (1 ,2) having their winding on a toroidal cores, and further the beginning (111) of power winding (11 ) of the first transformer (1) is connected to a terminal connector (10) of a power input of the whole voltage regulation system, while the end (112) of this power winding (11 ) is connected to a beginning (211 ) of the power winding (21 ) of the second -transformer (2), and the end (212) of the power winding (21) of the second transformer (2) is connected to a terminal connector (100) of power output of the whole voltage regulation system, and further one of regulation winding (12) taps (121 ) of the first transformer (1) is connected to the second regulation Winding (22) tap (222) of the second transformer (2), while a regulation winding (22) input (220) of the second transformer (2) is connected, over feedback relay (4) rest contacts (41 ), to a voltage terminal connector (10) of the whole voltage regulation system power input and the regulation winding (22) output (223) of the second transformer (2) is connected to a neutral wire terminal connector (1000), and the regulation winding (22) first tap (221) of the second transformer^) is connected to a regulated output (310) of a regulated voltage source (3), which is connected through the first governing linkage (30) to the governing unit (5), while the second governing linkage (40) provides a governing linkage from the governing unit (5) to the feedback relay (4).
2. Voltage regulation system, according to claim 1, characterized in, that the regulation winding (22) beginning (220) of the second transformer (2) is connected, too, over a capacitor (6), to a neutral wire terminal connector (1000).
3. Voltage regulation system, according to claims 1 and 2, characterized in , that the regulated voltage source (3) is created as electronically regulated voltage source.
4. Voltage regulation system, according to claims 1 to 3, characterized in, that the regulated voltage source (3) is created as an autotransformer (31 ), having its winding on a toroidal core and having at least two different voltage outputs (3100 to 3109), or having one output with a regulated voltage, where the regulated voltage source (3) autotransformer (31) winding input (311) is connected, through working contacts (42) of feedback relay (4), to power input terminal connector (10) of the whole voltage regulation system, while the regulated voltage source (3) autotransformer (31) winding output (312) is connected to the neutral wire terminal connector (1000).
5. Voltage regulation system, according to claim 4, characterized in, that the output of regulated voltage source (3), having the output with regulated voltage, is created so that the output terminal connector (310) of a regulated voltage source (3) is connected to its autotransformer (31 ) winding over a brush slider, a position of which is adjustable on said winding by a mechanical drive link between the brush slider and step motor, which is positioned by the governing unit (5) of the whole voltage regulation system through the first governing linkage (30).
6. Voltage regulation system, according to claim 4, characterized in, that the regulated voltage source (3) having outputs (3100 to 3109) with different voltage, which are connected to the regulated voltage source (3) output terminal connector (310) through closing contacts (3200 to 3290) of at least two relays (320 to 329), which are adjusted for being initialised by the governing unit (5), through the first governing linkage (30).
7. Voltage regulation system, according to claim 6, characterized in, that the governing unit (5) of the whole system consists of low voltage source (51 ) and a computer (52), which computer (52) is connected by a governing linkage (50) to the low voltage source (51), where on said low voltage source (51) there are created' Outputs (510 to 519) for being selectively cόήnectecl \6 ^an C6utpϋt voltage of the iόw' voltage source (51) and simultariebusly adju'sfed'for b'eϊhξj- all the time connected to the winding of all relays (320 to 329) in^tHe^ regulated voltage source (3). ■ <! ;1 ' V;- ''
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2005-572 | 2005-09-13 | ||
| CZ20050572A CZ302224B6 (en) | 2005-09-13 | 2005-09-13 | Voltage regulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007031038A2 true WO2007031038A2 (en) | 2007-03-22 |
| WO2007031038A3 WO2007031038A3 (en) | 2008-07-10 |
Family
ID=37613902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2006/000059 WO2007031038A2 (en) | 2005-09-13 | 2006-09-13 | Voltage regulation system |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ302224B6 (en) |
| WO (1) | WO2007031038A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847880B (en) * | 2009-03-24 | 2012-08-29 | 戴芸 | Large-capacity, low ripple wave and multifunction charging device and charging method thereof |
| CN111864906A (en) * | 2020-07-29 | 2020-10-30 | 上海璞圆节能科技有限公司 | Intelligent power-saving equipment with contactless adjusting function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2179353A (en) * | 1936-03-24 | 1939-11-07 | Westinghouse Electric & Mfg Co | Voltage stabilizing network |
| US3021473A (en) * | 1959-12-21 | 1962-02-13 | Bert K Naster | Voltage regulators |
| SU911490A2 (en) * | 1979-12-07 | 1982-03-07 | Предприятие П/Я А-7569 | Ferroresonance ac voltage stabilizer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2886767A (en) * | 1957-11-21 | 1959-05-12 | Bert K Naster | Electromagnetic voltage regulator |
| US5006783A (en) * | 1989-10-16 | 1991-04-09 | General Signal Corporation | Three phase voltage regulator system using tertiary winding transformer |
| JPH08124768A (en) * | 1994-10-27 | 1996-05-17 | Shiiku Densetsu:Kk | On-load tap changing type ac constant voltage device |
| SE510452C2 (en) * | 1997-02-03 | 1999-05-25 | Asea Brown Boveri | Transformer with voltage regulator |
| CZ9872U1 (en) * | 2000-03-01 | 2000-04-10 | Slavomir Turoe | Universal Cascade Voltage Stabilizer Connection |
| ES2170659B1 (en) * | 2000-05-04 | 2003-10-16 | Scorpio Elektro Xxi S L | ALTERNATE VOLTAGE REGULATOR |
-
2005
- 2005-09-13 CZ CZ20050572A patent/CZ302224B6/en not_active IP Right Cessation
-
2006
- 2006-09-13 WO PCT/CZ2006/000059 patent/WO2007031038A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2179353A (en) * | 1936-03-24 | 1939-11-07 | Westinghouse Electric & Mfg Co | Voltage stabilizing network |
| US3021473A (en) * | 1959-12-21 | 1962-02-13 | Bert K Naster | Voltage regulators |
| SU911490A2 (en) * | 1979-12-07 | 1982-03-07 | Предприятие П/Я А-7569 | Ferroresonance ac voltage stabilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847880B (en) * | 2009-03-24 | 2012-08-29 | 戴芸 | Large-capacity, low ripple wave and multifunction charging device and charging method thereof |
| CN111864906A (en) * | 2020-07-29 | 2020-10-30 | 上海璞圆节能科技有限公司 | Intelligent power-saving equipment with contactless adjusting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ302224B6 (en) | 2010-12-29 |
| CZ2005572A3 (en) | 2007-04-18 |
| WO2007031038A3 (en) | 2008-07-10 |
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