CN202084408U - Distribution transformer capable of automatically regulating capacitance and voltage - Google Patents

Distribution transformer capable of automatically regulating capacitance and voltage Download PDF

Info

Publication number
CN202084408U
CN202084408U CN2011201808031U CN201120180803U CN202084408U CN 202084408 U CN202084408 U CN 202084408U CN 2011201808031 U CN2011201808031 U CN 2011201808031U CN 201120180803 U CN201120180803 U CN 201120180803U CN 202084408 U CN202084408 U CN 202084408U
Authority
CN
China
Prior art keywords
transformer
voltage
low
permanent
low pressure
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 - Lifetime
Application number
CN2011201808031U
Other languages
Chinese (zh)
Inventor
魏贞祥
杨福荣
马振邦
潘新华
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.)
BEIJING BORUILAI INTELLIGENT TECHNOLOGY Co Ltd
Original Assignee
BEIJING BORUILAI INTELLIGENT TECHNOLOGY Co Ltd
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.)
Filing date
Publication date
Application filed by BEIJING BORUILAI INTELLIGENT TECHNOLOGY Co Ltd filed Critical BEIJING BORUILAI INTELLIGENT TECHNOLOGY Co Ltd
Priority to CN2011201808031U priority Critical patent/CN202084408U/en
Application granted granted Critical
Publication of CN202084408U publication Critical patent/CN202084408U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model provides a distribution transformer capable of automatically regulating capacitance and voltage. The distribution transformer comprises a transformer shell, wherein a transformer coil is arranged in the shell, an upper clamping piece and a lower clamping piece are respectively arranged at the upper end and the lower end of the transformer coil, a top cover of the transformer is arranged on the shell, and a high-voltage porcelain sleeve and a low-voltage wire outlet position or a low-voltage porcelain sleeve are arranged at the upper part of the top cover of the transformer; and the distribution transformer also comprises a transformer bracket, a capacitance adjusting switch, a voltage adjusting switch, a low-voltage permanent magnet vacuum load switch and a comprehensive monitoring controller. When the distribution transformer is adopted, the ordinary problem of low voltage among distribution network users is effectively solved, and the problems of high no-load loss and unbalanced three-phase load distribution in a rural distribution network area are solved, remote controlled operation can be realized, and the automatic control and power monitoring and management of the distribution network area are realized; and the distribution transformer has the function of preventing electricity from being stolen.

Description

Automatic capacity and pressure regulating distribution transformer
Technical field
The utility model relates to rural electricity consumption distribution field, is specifically related to a kind of automatic capacity and pressure regulating distribution transformer.
Background technology
Rural area distribution transforming 90% above time light running, no-load loss is big, ubiquity low-voltage and three-phase load energy imbalance, low-voltage can cause following harm: (1) burns motor.Brownout surpasses 10%, and motor current will be increased, and coil temperature raises when serious even the scaling loss motor.(2) lamp obfuscation.Voltage reduces by 5%, and the illumination of common electric light descends 18%; Voltage reduces by 10%, and illumination descends 35%; Voltage reduces by 20%, and then fluorescent lamp can not start.(3) increase line loss.When carrying certain electric power, voltage reduces, and the corresponding increase of electric current causes that line loss increases.(4) stability of reduction electric power system.Because voltage reduces, corresponding reduction circuit delivery limits capacity, thereby reduced stability, the voltage collapse accident may take place in brownout.(5) generator output reduces.Surpass at 5% o'clock if voltage reduces, then generator output is also wanted corresponding reduction.(6) voltage reduces, also can reduce give, the converting equipment ability.
Unsymmetrical current can increase circuit and transformer copper loss, and under the situation of the limit, copper loss can increase by 3 times.For the transformer of Yyno connection group, also can increase the transformer iron loss, influence the transformer safe operation, cause imbalance of three-phase voltage, reduce power supply quality.
Solve the underloading problem, must adopt capacitance-adjustable transformer, enable according to the automatic pondage of payload; Solve the low-voltage problem, must adopt voltage regulating transformer, enable to promote power supply quality according to the automatic regulation voltage height of voltage fluctuation situation; These transformer equipments can only solve one of them problem, and any equipment cost, obviously can not be promoted in 10kV distribution network large tracts of land let alone solving the three-phase load imbalance problem all than higher.
The utility model content
At the demand, the technical problem of solution of the present utility model is, a kind of automatic capacity and pressure regulating distribution transformer is provided, solved the ubiquitous low-voltage problem of power distribution network user, and solved the big and distribution transforming three-phase load imbalance problem of rural power distribution platform district no-load loss, the remote-controllable operation be can also carry out, the automation control and the power monitoring management of distribution net platform region realized.
The technical scheme of automatic capacity and pressure regulating distribution transformer of the present utility model is as follows:
Automatic capacity and pressure regulating distribution transformer of the present utility model, comprise the transformer housing, be provided with transformer coil in the described housing, the upper and lower side of transformer coil is respectively arranged with upper clamping piece and lower clamping piece, described housing is provided with the transformer top cover, described transformer top cover top is provided with high voltage porcelain bushing and low pressure outlet, wherein, also comprise transformer bracket, the capacity transfer switch, tap changer, installation chassis, low-voltage vacuum permanent magnetism on-load switch, described transformer bracket is arranged on the transformer housing madial wall, described capacity transfer switch is fixed on the described upper clamping piece by insulated support, described tap changer is fixed on the described transformer bracket, described installation chassis is fixed on low pressure outlet, transformer top cover top, and described low-voltage vacuum load permanent-magnetic switching is fixedlyed connected with described installation chassis.
Wherein, described low pressure permanent magnetism vacuum load switch comprises casing, inner frame, low-voltage vacuum arc control device, permanent-magnet electromagnetic operating means, described low-voltage vacuum arc control device, permanent-magnet electromagnetic operating means are installed on the inner frame, are connected by transmission mechanism between described low-voltage vacuum arc control device and the electromagnet.
Wherein, described low pressure permanent magnetism vacuum load switch also comprises low pressure permanent magnetism vacuum load switch casing, described low pressure permanent magnetism vacuum load switch casing is positioned at described transformer top cover top, and described low pressure outlet and described low pressure permanent magnetism vacuum load switch all are arranged in the described low pressure permanent magnetism vacuum load switch casing.
Wherein, described permanent-magnet electromagnetic operating means comprises fixing back-up ring and is positioned at the closing coil of described fixedly back-up ring, switching winding, static iron core, moving iron core and permanent magnet, described moving iron core is positioned at the middle part of described fixedly back-up ring, the two ends of described moving iron core are wound with closing coil and switching winding respectively, described static iron core is around moving iron core symmetric arrays, and described permanent magnet is positioned at the centre of described switching winding of described moving core exterior surface and described closing coil.
Wherein, also comprise the comprehensive monitoring controller, described comprehensive monitoring controller and described capacity and pressure regulating switch and low-voltage vacuum load permanent-magnetic switching or high voltage permanent on-load switch are connected respectively, are used for controlling respectively the switching of described capacity transfer switch, tap changer and low-voltage vacuum load permanent-magnetic switching.
Wherein, also comprise low-voltage current mutual inductor, described low-voltage current mutual inductor be arranged in the described low pressure permanent magnetism vacuum load switch casing or the inboard low pressure insulator of transformer top cover on.
The beneficial effects of the utility model are as follows.
The utility model has effectively solved the ubiquitous low-voltage problem of power distribution network user, and solved the big problem of rural power distribution platform district no-load loss, cooperate with the low-voltage compensation power distribution equipment and also can realize distribution transforming three-phase load imbalance compensation problem, can also carry out the remote-controllable operation, and has an anti-stealing electricity function, cooperate with High-voltage measuring box, can also realize the high pressure measurement load controlling function, realized the automation control and the power monitoring management of distribution net platform region.It is a kind of novel transformer of intelligent economize on electricity, also be the preferred plan that makes up intelligent power distribution platform district, adopt this programme product improving power supply quality, prolong the equipment operation life-span, improve circuit and distribution transforming conveying capacity, various aspects such as increase amount of power supply all have significantly improves existing huge economic benefit, remarkable social benefit is also arranged, suitable generally popularization.
Description of drawings
Fig. 1 represents that the utility model band low-voltage load controls the front view of automatic capacity and pressure regulating distribution transformer;
Fig. 2 represents that the utility model band low-voltage load controls the right view of automatic capacity and pressure regulating distribution transformer;
Fig. 3 represents that the utility model band low-voltage load controls the vertical view of automatic capacity and pressure regulating distribution transformer;
Fig. 4 represents the control principle figure of the automatic capacity and pressure regulating distribution transformer of the utility model;
Among the figure, 1 low pressure permanent magnetism vacuum load switch; 2 capacity transfer switches; 3 transformer coils; 4 transformer housings; 5 high voltage porcelain bushings; 6 low pressure outlets (low pressure insulator); 7 low pressure permanent magnetism vacuum load switch casings; 8 emergency operation handles; 9 insulated supports; 11 transformer top covers; 12 upper clamping pieces; 13 lower clamping pieces; 14 backing plates; 15 low-voltage current mutual inductors; 16 tap changers; 17 transformer brackets.
Embodiment
Below in conjunction with accompanying drawing automatic capacity and pressure regulating distribution transformer of the present utility model is further specified.
Shown in accompanying drawing 1-3, comprise transformer housing 4 according to a kind of automatic capacity and pressure regulating distribution transformer of the present utility model, be provided with transformer coil 3 in the described transformer housing 4, the upper and lower side of transformer coil 3 is respectively arranged with upper clamping piece 12 and lower clamping piece 13, is provided with backing plate 14 between transformer housing 4 and the lower clamping piece 13.Described transformer housing 4 is provided with transformer top cover 11, described transformer top cover 11 tops are provided with high voltage porcelain bushing 5 and low pressure outlet 6 (being the low pressure insulator), described housing madial wall is provided with transformer bracket 17, wherein, also comprise capacity transfer switch 2, described capacity transfer switch 2 is fixed on the described upper clamping piece 12 by insulated support 9, also comprises tap changer 16, and described tap changer 16 is fixed on the above-mentioned transformer bracket 17.This automatic capacity and pressure regulating distribution transformer also is provided with emergency operation handle 8, under powering-off state, and also can be by emergency operation handle 8 manual capacity transfers.This automatic capacity and pressure regulating distribution transformer also comprises low-voltage vacuum permanent magnetism on-load switch 1, and installation chassis is fixed on low pressure outlet 16 places, transformer top cover top, and described low-voltage vacuum load permanent-magnetic switching 1 is fixedlyed connected with described installation chassis.Also comprise low-voltage vacuum permanent magnetism on-load switch casing 7, described low-voltage vacuum permanent magnetism on-load switch casing 7 is positioned at described transformer top cover 11 tops, and described low pressure outlet 6 all is arranged in the described low-voltage vacuum permanent magnetism on-load switch casing 7 with described low-voltage vacuum permanent magnetism on-load switch 1.For realizing automatic control, also comprise the comprehensive monitoring controller, described comprehensive monitoring controller is connected respectively with described capacity transfer switch 2, tap changer 16 and low pressure permanent magnetism vacuum load switch 1, is used for controlling respectively the switching of described capacity transfer switch 2, tap changer 16 and low pressure permanent magnetism vacuum load switch 1.
In the use, be full of oil in the existing transformer housing 4, tap changer 16, capacity transfer switch 2, transformer coil 3 all immerse in the transformer oil; On transformer top cover 11, be installed with 5,4 low pressure outlets 6 of 3 high voltage porcelain bushings, in transformer top cover 11 low pressure outlets 3 low-voltage current mutual inductors 15 are installed, are through and are fixed on low pressure permanent magnetism vacuum load switch casing 7 interior or transformer top cover 11 inboards on the low pressure outlet 6.
In the use, be full of oil in the existing transformer housing 4, tap changer 16, capacity transfer switch 2, high voltage permanent on-load switch 18, transformer coil 3 all immerse in the transformer oil, on transformer top cover 11, be installed with 5,4 low pressure insulators 6 of 3 high voltage porcelain bushings, on transformer top cover 11 inboard low pressure insulators, 3 low-voltage current mutual inductors 15 be installed.
The comprehensive monitoring controller is mainly by analog-to-digital conversion module, CPU module (CPU), Executive Module is formed, the voltage and current signal that current signal that low-voltage current mutual inductor 15 detects and low voltage voltage signal or High-voltage measuring box detect inputs to analog-to-digital conversion module, analog-to-digital conversion module inputs to CPU module (CPU) with the aanalogvoltage current signal, CPU module (CPU) calculates the also comprehensive virtual voltage current value of actual capacity value (P0) as criterion, according to the corresponding output loop of pre-conditioned triggering Executive Module, thus control capacity transfer switch, tap changer, the switching of (height) low pressure permanent magnetism on-load switch:
With actual capacity P0 with preset transformer capacity value (Ph, Pl) and compare: if P0>Ph then need turn capacity down, CPU signals to Executive Module and triggers the capacity transfer output loop; If P0<Pl then need transfer big capacity, CPU signals to Executive Module triggering capacity transfer output loop; If Pl<P0<Ph then need not adjust capacity.
Actual voltage value (U0) and preset voltage value (UH, UL) are compared: if U0>UH then needs voltage is turned down, CPU signals to trigger and turns down the pressure output loop; If U0<UL then needs voltage is heightened, CPU signals to trigger and heightens the pressure output loop; If UL<U0<UH is then without pressure regulation.
Equally, CPU module (CPU) compares computing with virtual voltage current value and preset voltage current protection value, sends out different to instruct to Executive Module and triggers corresponding output loop.
The output loop of Executive Module links to each other with capacity transfer switch, tap changer and low-voltage vacuum permanent magnetism on-load switch respectively, when corresponding output loop triggers, the on/off switch state exchange is carried out in the corresponding switch motion that connects, and when converting, switch state signal feeds back to the comprehensive monitoring controller.The comprehensive monitoring controller carries remote communicating function, thereby realizes Long-distance Control and power information monitoring management.
The comprehensive monitoring controller is installed in the control casing of transformer outside, generally is the low-voltage compensation distribution box that matches with it.In actual applications, this casing can be fixedly mounted on transformer stand below, also can be fixedly mounted on the electric pole adjacent with transformer outlet side.
The above only is a preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (6)

1. automatic capacity and pressure regulating distribution transformer, comprise the transformer housing, be provided with transformer coil in the described housing, the upper and lower side of transformer coil is respectively arranged with upper clamping piece and lower clamping piece, described housing is provided with the transformer top cover, described transformer top cover top is provided with high voltage porcelain bushing and low pressure outlet, it is characterized in that, also comprise transformer bracket, the capacity transfer switch, tap changer, installation chassis, low-voltage vacuum permanent magnetism on-load switch, described transformer bracket is arranged on the transformer housing madial wall, described capacity transfer switch is fixed on the described upper clamping piece by insulated support, described tap changer is fixed on the described transformer bracket, described installation chassis is fixed on low pressure outlet, transformer top cover top, and described low-voltage vacuum load permanent-magnetic switching is fixedlyed connected with described installation chassis.
2. automatic capacity and pressure regulating distribution transformer according to claim 1, it is characterized in that, described low pressure permanent magnetism vacuum load switch comprises casing, inner frame, low-voltage vacuum arc control device, permanent-magnet electromagnetic operating means, described low-voltage vacuum arc control device, permanent-magnet electromagnetic operating means are installed on the inner frame, are connected by transmission mechanism between described low-voltage vacuum arc control device and the electromagnet.
3. automatic capacity and pressure regulating distribution transformer according to claim 2, it is characterized in that, described low pressure permanent magnetism vacuum load switch also comprises low pressure permanent magnetism vacuum load switch casing, described low pressure permanent magnetism vacuum load switch casing is positioned at described transformer top cover top, and described low pressure outlet and described low pressure permanent magnetism vacuum load switch all are arranged in the described low pressure permanent magnetism vacuum load switch casing.
4. automatic capacity and pressure regulating distribution transformer according to claim 3, it is characterized in that, described permanent-magnet electromagnetic operating means comprises fixing back-up ring and is positioned at the closing coil of described fixedly back-up ring, switching winding, static iron core, moving iron core and permanent magnet, described moving iron core is positioned at the middle part of described fixedly back-up ring, the two ends of described moving iron core are wound with closing coil and switching winding respectively, described static iron core is around moving iron core symmetric arrays, and described permanent magnet is positioned at the centre of described switching winding of described moving core exterior surface and described closing coil.
5. according to any described automatic capacity and pressure regulating distribution transformer of claim 1-4, it is characterized in that, also comprise the comprehensive monitoring controller, described comprehensive monitoring controller and described capacity and pressure regulating switch and low-voltage vacuum load permanent-magnetic switching or high voltage permanent on-load switch are connected respectively, are used for controlling respectively the switching of described capacity transfer switch, tap changer and low-voltage vacuum load permanent-magnetic switching.
6. automatic capacity and pressure regulating distribution transformer according to claim 5 is characterized in that, also comprises low-voltage current mutual inductor, described low-voltage current mutual inductor be arranged in the described low pressure permanent magnetism vacuum load switch casing or the inboard low pressure insulator of transformer top cover on.
CN2011201808031U 2011-05-31 2011-05-31 Distribution transformer capable of automatically regulating capacitance and voltage Expired - Lifetime CN202084408U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201808031U CN202084408U (en) 2011-05-31 2011-05-31 Distribution transformer capable of automatically regulating capacitance and voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201808031U CN202084408U (en) 2011-05-31 2011-05-31 Distribution transformer capable of automatically regulating capacitance and voltage

Publications (1)

Publication Number Publication Date
CN202084408U true CN202084408U (en) 2011-12-21

Family

ID=45345030

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201808031U Expired - Lifetime CN202084408U (en) 2011-05-31 2011-05-31 Distribution transformer capable of automatically regulating capacitance and voltage

Country Status (1)

Country Link
CN (1) CN202084408U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360843A (en) * 2011-05-31 2012-02-22 北京博瑞莱智能科技有限公司 Distribution transformer capable of automatically adjusting capacitance and voltage
CN103475095A (en) * 2013-09-03 2013-12-25 国家电网公司 Intelligent transformer
CN105337420A (en) * 2015-12-08 2016-02-17 上海熠萃电气有限公司 Energy-saving type power transformer capable of achieving automatic power distribution
CN105810501A (en) * 2016-05-10 2016-07-27 浙江纪元变压器有限公司 Switch for simultaneously achieving multi-breaking and multi-closing
CN105826124A (en) * 2016-05-10 2016-08-03 浙江纪元变压器有限公司 Vacuum voltage-regulating and capacity-regulating tap switch
CN109980643A (en) * 2019-04-30 2019-07-05 国网北京市电力公司 A kind of intelligent transformer and method based on perception low-pressure system parameter
CN110040509A (en) * 2019-03-28 2019-07-23 惠州城市职业学院(惠州商贸旅游高级职业技术学校) A kind of remote control type part cover remote control system
CN111192772A (en) * 2019-12-31 2020-05-22 国网北京市电力公司 Method and device for processing characteristics of movable iron core of voltage regulating switch
CN112420362A (en) * 2020-11-11 2021-02-26 广东电网有限责任公司 On-load voltage regulation power transformer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360843A (en) * 2011-05-31 2012-02-22 北京博瑞莱智能科技有限公司 Distribution transformer capable of automatically adjusting capacitance and voltage
CN102360843B (en) * 2011-05-31 2013-05-15 北京博瑞莱智能科技有限公司 Distribution transformer capable of automatically adjusting capacitance and voltage
CN103475095A (en) * 2013-09-03 2013-12-25 国家电网公司 Intelligent transformer
CN105337420A (en) * 2015-12-08 2016-02-17 上海熠萃电气有限公司 Energy-saving type power transformer capable of achieving automatic power distribution
CN105810501A (en) * 2016-05-10 2016-07-27 浙江纪元变压器有限公司 Switch for simultaneously achieving multi-breaking and multi-closing
CN105826124A (en) * 2016-05-10 2016-08-03 浙江纪元变压器有限公司 Vacuum voltage-regulating and capacity-regulating tap switch
CN105826124B (en) * 2016-05-10 2018-09-11 浙江纪元变压器有限公司 A kind of vacuum pressure regulating and capacitance regulating tap switch
CN105810501B (en) * 2016-05-10 2018-09-11 浙江纪元电气科技股份有限公司 Switch that is a kind of while realizing conjunction more than more points
CN110040509A (en) * 2019-03-28 2019-07-23 惠州城市职业学院(惠州商贸旅游高级职业技术学校) A kind of remote control type part cover remote control system
CN109980643A (en) * 2019-04-30 2019-07-05 国网北京市电力公司 A kind of intelligent transformer and method based on perception low-pressure system parameter
CN111192772A (en) * 2019-12-31 2020-05-22 国网北京市电力公司 Method and device for processing characteristics of movable iron core of voltage regulating switch
CN112420362A (en) * 2020-11-11 2021-02-26 广东电网有限责任公司 On-load voltage regulation power transformer

Similar Documents

Publication Publication Date Title
CN202084408U (en) Distribution transformer capable of automatically regulating capacitance and voltage
CN102360843B (en) Distribution transformer capable of automatically adjusting capacitance and voltage
CN202110930U (en) Distribution transformer capable of automatically regulating capacity and voltage
CN204884830U (en) Sealed on -load voltage regulation power transformer
CN202189664U (en) Automatic capacity regulating voltage adjusting distribution transformer
CN203338934U (en) 66kV grounding transformer with power distribution output for station
CN203553686U (en) Small-size intelligent prefabricated substation
CN202076106U (en) Automatic voltage-regulating transformer
CN203338924U (en) High-voltage side auxiliary power supply of transformer
CN208164807U (en) Railway power system and outdoor parallel modular device for railway power system
CN202034209U (en) Three-phase oil-immersed type load tap changing distribution transformer
CN203746630U (en) Efficient rapid load-following intelligent power distribution transformer
CN202026016U (en) Full-automatic control box type substation for energy-saving street lamps
CN202084406U (en) Transformer capable of automatically regulating capacity
CN204760838U (en) It holds low intelligent combination formula transformer substation of decreasing to have to carry to transfer
CN201532834U (en) Dry type hollow electrified railway serial capacity adjusting reactor
CN201536056U (en) Double-contact box type current mutual inductor
CN208461227U (en) A kind of high voltage power distribution battery saving arrangement
CN206789962U (en) A kind of integrated loaded capacity regulating voltage regulating power distribution station
CN212209137U (en) On-load capacity and voltage regulating transformer convenient to mount
CN203398542U (en) Improved cubicle gas insulated switchgear electric operation device
CN201868320U (en) 10kV line vacuum switch
CN210517796U (en) On-load voltage regulation device
CN210327147U (en) Intelligent controller for universal circuit breaker
CN214753628U (en) 10kv intelligent switch fuse combined electrical appliance switch cabinet

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20111221

Effective date of abandoning: 20130515