CN106024344B - Loaded capacity regulating voltage regulating device - Google Patents

Loaded capacity regulating voltage regulating device Download PDF

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Publication number
CN106024344B
CN106024344B CN201610591846.6A CN201610591846A CN106024344B CN 106024344 B CN106024344 B CN 106024344B CN 201610591846 A CN201610591846 A CN 201610591846A CN 106024344 B CN106024344 B CN 106024344B
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China
Prior art keywords
transformer
normally
closed contact
capacity
normally opened
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CN106024344A (en
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魏晓熙
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BEIJING PINGKAI INTELLIGENT ELECTRIC Co Ltd
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BEIJING PINGKAI INTELLIGENT ELECTRIC Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/56Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The embodiments of the invention provide a kind of loaded capacity regulating voltage regulating device, it is related to power supply technique field.The device includes:Transformer and transition switch, and are mounted with capacitance switch and tap changer on transformer, transformer includes armature winding;Transition switch includes the first normally-closed contact, and capacitance switch includes the second normally-closed contact;The first normally-closed contact and the second normally-closed contact are in series between the input of armature winding and transformer to be regulated, capacitance switch and tap changer are electrically connected at armature winding, to be respectively used to adjust the capacity and voltage of transformer input transformer to be regulated.Loaded capacity regulating voltage regulating device provided by the invention easily and fast, ideally can run old transformer assembling with various, realize and live non-maintaining loaded capacity-regulated and pressure regulation transformation and upgrade are carried out to existing old taiwan area, reduce upgrade cost, the last obstacle for promoting capacity and pressure regulating technology is breached, is easy to the energy-conservation and quality of power supply Promotion Transformation to the transformer of old.

Description

Loaded capacity regulating voltage regulating device
Technical field
The present invention relates to power supply technique field, in particular to a kind of loaded capacity regulating voltage regulating device.
Background technology
The energy-efficient distribution transformer of main flow mainly has two kinds of energy-saving oil immersed transformer and amorphous alloy transformer at present.
Oil immersion-type distribution transformer is divided into S9, S11, S13 capacity and pressure regulating transformer series by drain performance, by contrast The open circuit loss of the open circuit loss of S11 serial transformers 20%, S13 serial transformers lower than S9 series is lower by 25% than S11 series. S11 capacity and pressure regulating transformer synthesis open circuit losses lower than S13 28%, State Grid Corporation of China is widely used S11 series distribution Transformer, and S13 series and S11 capacity and pressure regulating transformers, following a period of time S11 capacity transfers are progressively promoted just in urban network restructuring Pressure regulation becomes, S13 series oil immersion-type distribution transformer will substitute the existing S9 series in network operation completely.
Amorphous alloy transformer has had energy saving and economy concurrently, and its distinguishing feature is that open circuit loss is very low, only S9 systems 20% or so of row oil-filled transformer, but the restriction of raw material amorphous alloy strips production capacity deficiency is limited by, Chinese amorphous closes Golden transformer is not mass produced always.The proportion of distribution transformer is accounted in the amorphous alloy transformer that network operation uses only For 7%-8%.
Currently has on-line operation power distribution station totally 1,650 ten thousand, the storage radix of the old transformer in power distribution station is big. Due to the pressure that distribution transformer industry competition is fierce, high in face of the cost of raw material, and energy conservation evaluation system construction and market The deficiency of supervision and management, change old transformer from energy-economic transformer and face higher first input, to pushing away for power supply transformation Wideband comes greatly difficult.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of loaded capacity regulating voltage regulating device, can conveniently, soon Speed, ideally assembled with various in operating transformer, breach the last obstacle for promoting capacity and pressure regulating technology, be easy to old taiwan area Energy-conservation and quality of power supply Promotion Transformation.
To achieve the above object, the technical scheme of loaded capacity regulating voltage regulating device provided by the invention is as described below:
A kind of loaded capacity regulating voltage regulating device, including:Auto-transformer and transition switch, and are mounted with the auto-transformer Capacitance switch and tap changer, the auto-transformer include armature winding and secondary windings;
The transition switch includes the first normally-closed contact and the first normally opened contact, and it is normally closed tactile that the capacitance switch includes second Point, the second normally opened contact and the 3rd normally-closed contact;
First normally-closed contact and described are in series between the input of the armature winding and transformer to be regulated Two normally-closed contacts, the capacitance switch and the tap changer are electrically connected at the armature winding, to be respectively used to adjust institute State the capacity and voltage of transformer to be regulated;
The secondary windings couples with the armature winding, and first normally opened contact is in parallel with second normally opened contact Connect to form the first load output link with the secondary windings afterwards, the output of the 3rd normally-closed contact and transformer to be regulated End series connection forms the second load output link, electricity after the first load output link is in parallel with the described second load output link Property be connected to load equipment, the auto-transformer to transformer to be regulated during pressure regulation or capacity transfer is carried out, by the One load output link is powered for load equipment.
Loaded capacity regulating voltage regulating device as described above, it is preferable that the transition switch is vacuum load switch..
Loaded capacity regulating voltage regulating device as described above, it is preferable that loaded capacity regulating voltage regulating device also includes current-limiting resistance, described Current-limiting resistance is in parallel with second normally opened contact after being connected with first normally opened contact.
Loaded capacity regulating voltage regulating device as described above, it is preferable that the auto-transformer and the transformer to be regulated are equal For three-phase transformer.
Loaded capacity regulating voltage regulating device as described above, it is preferable that first normally-closed contact, first normally opened contact, The quantity of second normally-closed contact, the 3rd normally-closed contact and second normally opened contact is 3,3 described first Normally-closed contact and 3 second normally-closed contacts connect one to one, 3 first normally opened contacts and 3 it is described second normal Open contact to connect one to one, 3 the 3rd normally-closed contacts correspond with 3 output ends of transformer to be regulated respectively to be connected Connect.
Loaded capacity regulating voltage regulating device as described above, it is preferable that loaded capacity regulating voltage regulating device also includes encapsulating housing, described Auto-transformer, first normally-closed contact, first normally opened contact, second normally-closed contact, the described 3rd it is normally closed touch Point and second normally opened contact are packaged in the encapsulating housing.
Loaded capacity regulating voltage regulating device as described above, it is preferable that the capacity of the auto-transformer is 50kVA.
Loaded capacity regulating voltage regulating device as described above, it is preferable that the capacity of the transformer to be regulated is 160kVA- 1000kVA。
Compared with prior art, loaded capacity regulating voltage regulating device of the invention has the advantages that:
Loaded capacity regulating voltage regulating device provided by the invention easily and fast, ideally can run old transformation with various Device assembles, and realizes and carries out Reconstruction in field upgrading to existing old taiwan area, greatly reduces upgrade cost, breach popularization capacity transfer The last obstacle of voltage-regulating technique, it is easy to energy-conservation and quality of power supply Promotion Transformation to the transformer of old.Utilize transition simultaneously The ingenious cooperation of switch, capacitance switch and tap changer and auto-transformer, it can meet during capacity and pressure regulating to negative The requirement of equipment continued power is carried, realizes the function of loaded capacity regulating voltage regulating.
Further, transition switch uses vacuum load switch, is cut in capacity transfer and pressure regulation handoff procedure by vacuum switch Disconnected load current, avoid equipment and produce electric arc in transformer oil in action process so as to carbonize transformer oil, it is necessary to periodically Oil strain, realize non-maintaining, the service life of lifting loaded capacity regulating voltage regulating device.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the circuit connection diagram for the loaded capacity regulating voltage regulating device that present pre-ferred embodiments provide.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects Enclose.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage Solve to indicate or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure Must be fully horizontal, but can be slightly tilted.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one Connect body;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirect by intermediary It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition State the concrete meaning of term in the present invention.
Referring to Fig. 1, the invention provides a kind of loaded capacity regulating voltage regulating device, the loaded capacity regulating voltage regulating device includes certainly Coupling transformer T1 and transition are switched, and capacitance switch and tap changer K3 are mounted with the auto-transformer T1, and the self coupling becomes Depressor T1 includes armature winding R1 and secondary windings R2, and transition switch includes the first normally-closed contact K11 and the first normally opened contact K12, capacitance switch include the second normally-closed contact K21, the second normally opened contact K22 and the 3rd normally-closed contact K23.
Wherein, the armature winding R1 in auto-transformer T1 is electrically connected in capacitance switch and tap changer K3, is used for The capacity and voltage that regulation is exported by armature winding, and armature winding R1 and the first normally-closed contact K11 and described second Transformer T2 to be regulated input is electrically connected at after normally-closed contact K21 series connection, for being inputted to transformer T2 to be regulated Electric energy.
In this way, it can realize that regulation inputs transformer T2 to be regulated voltage and capacity by loaded capacity regulating voltage regulating device, i.e., After the loaded capacity regulating voltage regulating device that the present embodiment provides is transformed with old transformer (transformer T2 i.e. to be regulated) assembling so that Former old transformer possesses capacity transfer and the function of pressure regulation, realizes carrying to the i.e. quality of power supply of energy-conservation of existing old transformer Transformation is risen, improves the length of service of existing equipment, and the loaded capacity regulating voltage regulating installation cost that the present embodiment provides is relatively low, avoids Overlapping investment and waste, are advantageous to promotion and application.
Referring to Fig. 1, auto-transformer T1 secondary windings R2 couples with armature winding R1, the first normally opened contact K12 with Connect to form the first load output link with secondary windings R2 after second normally opened contact K22 parallel connections, the 3rd normally-closed contact K23 Connect to form the second load output link with transformer T2 to be regulated output end, the first load output link and described the Load equipment is electrically connected at after two load output link parallel connections, the auto-transformer T1 is carried out to transformer T2 to be regulated During pressure regulation or capacity transfer, powered by the first load output link for load equipment.
In the present embodiment, the current-limiting resistance R3 to be connected with the first normally opened contact K12, current-limiting resistance R3 and first are additionally provided with Normally opened contact K12 series and parallels are in the second normally opened contact K22, in this way, can play a protective role, when preventing low-pressure side blending operation Caused electric arc is excessive, caused interior due to voltage difference that may be present when also limit T1 and T2 parallel connections in transient process Portion's circulation.
In the embodiment of the present invention, transition switch, capacitance switch and tap changer K3 can by corresponding control circuit or System is controlled, and wherein transition is switched for playing transitional function during capacity and pressure regulating.
Under normality, transition switchs the first normally-closed contact K11 closures, and the first normally opened contact K12 disconnects, the second normally opened point off To open, the second normally closed point and the 3rd normally closed point closure loaded capacity regulating voltage regulating device convey electric energy to transformer T2 to be regulated, and by treating The output end for adjusting transformer T2 is powered to load equipment.
When needing to carry out pressure regulation, by controller controling circuit in the switch of flip-flop transition at different moments, tap changer K3 Be powered conversion, and output voltage is adjusted so as to adjust transformation to be regulated by adjusting auto-transformer T1 output ends coil turn Device T2 input voltage, its output voltage is adjusted indirectly..During pressure regulation, the first normally opened contact K12 first closure, now by Transformer T2 and auto-transformer T1 to be regulated are in parallel, pass through the first and second load output link powering loads, Ran Hou One normally-closed contact K11 disconnects, and is now powered by the first load output link for load equipment.Then tap changer K3 is acted, and is adjusted After the completion of pressure, flip-flop transition switchs the first normally-closed contact K11 closures, in parallel by transformer T2 to be regulated and auto-transformer T1, Output link powering loads are loaded by first and second, then the first normally opened contact K12 disconnects, now loaded capacity regulating voltage regulating Device output provides electric energy for transformer T2 to be regulated, and loads output link through second by transformer T2 to be regulated output end Powered for load equipment.During this pressure regulation, No-load changer is realized relative to transformer T2 to be regulated, avoids pressure regulation process The generation of middle electric arc, it is ensured that transformer T2 to be regulated service life.After first being closed due to the first normally opened contact K12, first After normally-closed contact K11 is just disconnected, and K11 is first closed after the completion of pressure regulation, K12 just disconnects, therefore, during whole pressure regulation, It can be achieved to be continuously load equipment power supply, on-load voltage regulation then realized relative to load equipment, it is ensured that continuing for load equipment is steady Fixed operation.
When needing Large Copacity switching to low capacity, switched by controller controling circuit flip-flop transition, capacitance switch Be powered conversion, makes transformer T2 to be regulated out of service, and is powered by the less auto-type transformer T1 of capacity.Capacity transfer process In, the first normally opened contact K12 of transition switch first is closed, now in parallel by transformer T2 to be regulated and auto-transformer T1, It is now defeated by the first load by the first and second load output link powering loads, then the first normally-closed contact K11 disconnections Outgoing link is powered for load equipment.The transition resistance of the second normally opened contact K22 closures of last capacitance switch, K12 and its series connection It is shorted, the second normally closed normally closed point K23 of point K21 and the 3rd disconnect, and are now load equipment completely by the first load output link Power supply, low capacity operation is in equivalent to transformer.After the completion of capacity transfer, flip-flop transition switchs the first normally-closed contact K11 closures the One normally opened contact K12 disconnects, after this capacity transfer process, because transformer T2 inputs to be regulated and the circuit of output end are disconnection State, therefore there is no open circuit loss, only small capacity transformer T1 operations, save electric energy.Relative to load equipment, capacity transfer mistake Equipment does not power off in journey, realizes loaded capacity-regulated, it is ensured that the continual and steady operation of load equipment.
Likewise, when needing low capacity switching to Large Copacity, capacity transfer control letter is sent by control circuit or system Number, flip-flop transition switch, capacitance switch, which are powered, to be changed, and makes the less auto-type transformer T1 of capacity out of service, and by waiting to adjust Save transformer T2 power supplies.During capacity transfer, the first normally opened contact K12 of transition switch first closes the first normally-closed contact K11 and broken Open, now K12 and its transition resistance of series connection are in parallel with the second normally opened contact K22, by the first load output link to load Power supply, then second and the 3rd normally closed point K21, K23 closures, K21 disconnect.Subsequent first normally closed point K11 closures are now by waiting to adjust It is in parallel to save transformer T2 and auto-transformer T1, by the first and second load output link powering loads, then first is normal K12 disconnections are opened, are now powered by the second load output link for load equipment.High-volume run is in equivalent to transformer.Phase For load equipment, equipment does not have power-off to realize loaded capacity-regulated during capacity transfer, it is ensured that the continual and steady operation of load equipment.
Therefore, the present embodiment provide pressure regulating and capacitance regulating device, using transition switch, capacitance switch and tap changer K3 with Auto-transformer T1 ingenious cooperation, transformation and upgrade can be realized to old transformer, realize the function of capacity and pressure regulating, and adjusting Meet the function of to the requirement of load equipment continued power, realizing loaded capacity regulating voltage regulating during holding pressure regulation.
Referring to Fig. 1, auto-transformer T1 is three-phase transformer, thus it is the first normally-closed contact K11, described first normal Open contact K12, the second normally-closed contact K21, the 3rd normally-closed contact K23 and the second normally opened contact K22 quantity It is 3, three in 3 the first normally-closed contact K11,3 the second normally-closed contact K21 and auto-transformer T1 Armature winding R1 connects one to one, and 3 the first normally opened contact K12 and 3 the second normally opened contact K22 are in parallel one by one It is connected respectively with three secondary windings R2 afterwards, 3 the 3rd normally-closed contact K23 are defeated with 3 of transformer T2 to be regulated respectively Go out end to connect one to one.
Further, the loaded capacity regulating voltage regulating device that the present embodiment provides is additionally provided with an encapsulating housing, auto-transformer T1, the first normally-closed contact K11, the first normally opened contact K12, the second normally-closed contact K21, the 3rd normally-closed contact K23, second it is normally opened touch The part such as point K22 and current-limiting resistance is packaged in encapsulating housing, reduces equipment volume.
For transformer when on-load voltage regulation or capacity transfer operate, common transition switch and capacity and pressure regulating switch can be in switch contacts Place produces electric arc, and long term frequent operates in the case of powered, and electric arc can cause the oil quality deterioration of switch internal, oil quality deterioration meeting Gas and the greases such as free carbon, hydrogen, acetylene are produced, free carbon particle and grease are understood some and are mingled in insulating oil, accumulate On the surface of the insulating part of switch, deposit is formed, increasing for deposit can increase Leakage Current, reduce insulaion resistance, finally Cause paradoxical discharge, it is necessary to often safeguard, increase working strength, reduce switch life.In consideration of it, in the present embodiment, transition is opened Pass uses vacuum load switch, and switchs switching high current by transition in capacity and pressure regulating action process, can so avoid arc Produce, realize non-maintaining, the service life of lifting loaded capacity regulating voltage regulating device.
Auto-transformer T1 uses the auto-transformer T1 that capacity is 50kVA for secondary output capacity in the present embodiment, from Coupling pressure regulation capacity is 1000kVA, and transformer T2 to be regulated uses transformer of the capacity for 160KVA-1000KVA.
In summary, loaded capacity regulating voltage regulating device provided by the invention easily and fast, ideally can run with various Old transformer assembling, realizes and carries out Reconstruction in field upgrading to existing old taiwan area, greatly reduce upgrade cost, breach The last obstacle of capacity and pressure regulating technology is promoted, is easy to the energy-conservation and quality of power supply Promotion Transformation to the transformer of old.Simultaneously The pressure regulating and capacitance regulating device that the present embodiment provides, utilize the ingenious of transition switch, capacitance switch and tap changer K3 and transformer Coordinate, the continued power requirement to load equipment can be met during capacity and pressure regulating, realizes the work(of loaded capacity regulating voltage regulating Energy.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.It should be noted that:Similar label and letter exists Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, is then not required in subsequent accompanying drawing It is further defined and explained.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (8)

  1. A kind of 1. loaded capacity regulating voltage regulating device, it is characterised in that including:Auto-transformer and transition switch, the self coupling transformation Capacitance switch and tap changer are mounted with device, the auto-transformer includes armature winding and secondary windings;
    Transition switch includes the first normally-closed contact and the first normally opened contact, the capacitance switch including the second normally-closed contact, Second normally opened contact and the 3rd normally-closed contact;
    First normally-closed contact and described second normal is in series between the input of the armature winding and transformer to be regulated Closed contact, the capacitance switch and the tap changer are electrically connected at the armature winding, to be respectively used to treat described in regulation Adjust the capacity and voltage of transformer;
    The secondary windings couples with the armature winding, after first normally opened contact is in parallel with second normally opened contact with The secondary windings connects to form the first load output link, the output end string of the 3rd normally-closed contact and transformer to be regulated Connection forms the second load output link, electrically connects after the first load output link is in parallel with the described second load output link Load equipment is connected to, the auto-transformer is negative by first during pressure regulation or capacity transfer is carried out to transformer to be regulated Output link is carried to power for load equipment.
  2. 2. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that the transition switch is vacuum load switch Close.
  3. 3. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that also including current-limiting resistance, the current limliting Resistance is in parallel with second normally opened contact after being connected with first normally opened contact.
  4. 4. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that the auto-transformer and described wait to adjust It is three-phase transformer to save transformer.
  5. 5. loaded capacity regulating voltage regulating device according to claim 4, it is characterised in that first normally-closed contact, described One normally opened contact, second normally-closed contact, the quantity of the 3rd normally-closed contact and second normally opened contact are 3, and 3 Individual first normally-closed contact and 3 second normally-closed contacts connect one to one, 3 first normally opened contacts and 3 Second normally opened contact connects one to one, 3 the 3rd normally-closed contacts, 3 output ends with transformer to be regulated respectively Connect one to one.
  6. 6. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that also including encapsulating housing, the self coupling Transformer, first normally-closed contact, first normally opened contact, second normally-closed contact, the 3rd normally-closed contact and Second normally opened contact is packaged in the encapsulating housing, and enclosure interior is full of transformer oil.
  7. 7. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that the capacity of the auto-transformer is 50KVA。
  8. 8. loaded capacity regulating voltage regulating device according to claim 1, it is characterised in that the capacity of the transformer to be regulated is 160kVA-1000kVA。
CN201610591846.6A 2016-07-25 2016-07-25 Loaded capacity regulating voltage regulating device Active CN106024344B (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108063444B (en) * 2017-12-27 2023-11-14 山东优能电气设备有限公司 Automatic adjust energy-conserving distribution device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101697312A (en) * 2009-11-03 2010-04-21 保定天威集团有限公司 Low-voltage dual-voltage on-load-tap-changing auto-transformer
CN202068191U (en) * 2011-01-19 2011-12-07 西安盟创电器有限公司 Countryside supercharger
CN205959754U (en) * 2016-07-25 2017-02-15 北京平开智能电气有限公司 It holds regulator to have to carry to transfer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124409A (en) * 1981-01-27 1982-08-03 Toshiba Corp Single winding on-load tap changing transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101697312A (en) * 2009-11-03 2010-04-21 保定天威集团有限公司 Low-voltage dual-voltage on-load-tap-changing auto-transformer
CN202068191U (en) * 2011-01-19 2011-12-07 西安盟创电器有限公司 Countryside supercharger
CN205959754U (en) * 2016-07-25 2017-02-15 北京平开智能电气有限公司 It holds regulator to have to carry to transfer

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