CN2773958Y - Boxed variable-capacity substation - Google Patents
Boxed variable-capacity substation Download PDFInfo
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- CN2773958Y CN2773958Y CNU2004200863597U CN200420086359U CN2773958Y CN 2773958 Y CN2773958 Y CN 2773958Y CN U2004200863597 U CNU2004200863597 U CN U2004200863597U CN 200420086359 U CN200420086359 U CN 200420086359U CN 2773958 Y CN2773958 Y CN 2773958Y
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Abstract
The utility model discloses a box variable capacity substation which can change the capacity of a distribution transformer. The utility model is composed of a transformer chamber, a high-voltage switch chamber and a low-voltage chamber, wherein the low-voltage chamber is composed of a low-voltage switch, a reactive-load compensation device, a low-voltage distribution device, a metering device and a signal remote transmission device, wherein the distribution transformer is provided with two transformer cores with different capacities arranged in the same oil tank and the capacity of the transformer can be regulated in three stages. The utility model is mainly used for distribution circuits of big load fluctuation and is arranged at user sides, the real-time trace of the change of load can be realized to regulate the input capacity of the distribution transformer, and the loss of the transformer is reduced. The reactive-load compensation device and a monitoring and managing system of electricity stealing prevention are arranged, the fine low-voltage reactive-load compensation device can lead the reactive loads of distribution and transformation to be fully compensated, and the effects of energy-saving and loss reduction are good. The wireless communication and the remote monitoring and managing system of electricity stealing prevention can improve intelligent levels, electricity stealing can be effectively prevented and the utility model also facilitates the management of power supply departments.
Description
Technical field
The utility model belongs to the electroporation field, relate to a kind of variable capacity box-type substation, the output capacity of transformer is adjusted in the variation that is used for automatic follow load, and load side carried out reactive power compensation, to reach saving energy and decreasing loss and to guarantee the distribution transformer higher running efficiency, simultaneously electrical parameter subscriber computer on the Internet be can be reached by GPRS network, real-time monitoring and anti-stealing electricity function realized.
Background technology
At present, China's economic construction is in the high speed development stage, and the demand of the energy is also constantly increased, and especially the nervous contradiction of electric power energy supply and demand is increasingly sharpened, in the peak times of power consumption power supply department power cuts to limit consumption of having to; In order to alleviate the power supply shortage situation, country has taked corresponding measure, accelerates on the one hand the power supply construction, another important measures economize on electricity that lowers consumption exactly, employing energy-saving equipment.China's upgrading urban and rural power grids is in progress, and electric network composition is increasingly rationalized, but is subjected to multiple factor affecting, and still there is more problem in power distribution network.The first, distinct issues are that load variations is big, electric energy loss is serious.With regard to present electric power system, distribution transformer overload operation during peak of power consumption, and low power consumption time load is less than 50%.Distribution transformer no-load losses a large amount of in the electrical network account for 3% of total amount of power supply, and indivedual areas surpass 3%.With Shaanxi Province's local electricity system is example, this system is totally 66 counties, 6.1 ten thousand of distribution transformers are arranged, 924 in average every county, total capacity 4,230,000 KVA, year electricity sales amount 7,200,000,000 degree, distribution transformer loss 2.16 hundred million degree, calculate by 0.5 yuan/degree, 1.08 hundred million yuan of the annual distribution transforming no-load loss electricity charge, average every county loses 1,630,000 yuan.If distribution transforming no-load loss is reduced one percentage point, economic benefit will be very considerable.Under this situation, depend merely on and build power plant, then can bring a series of problems, big such as fund input, resource consumption is too fast etc., also can affect to environment.The second, because the terminal use relatively disperses, can not in time grasp, be not easy to management, can not in time discover, in time overhaul, fix a breakdown the hidden danger of distribution transforming existence in service to the running status of distribution transformer.Three, owing to electric network composition and load character, vacancy idle in China's electrical network is bigger, and power factor is on the low side, and the circuit reactive loss is serious.
Summary of the invention
In view of the present electricity consumption situation of power distribution network, the purpose of this utility model is, a kind of variable capacity box-type substation that can adjust distribution transformer capacity to distribution line according to load variations is provided, it is the output capacity of the variation adjustment transformer of follow load automatically, and load side carried out reactive power compensation, to guarantee the distribution transformer higher running efficiency, reach the purpose of saving energy and decreasing loss; Capacitance parameter is provided with by wireless network, and can each electrical parameter of distribution transforming be reached the remote monitoring chamber by mobile network, reaches the purpose of real-time monitoring.
To achieve these goals, the technical scheme taked of technical solution problem of the present utility model is:
A kind of variable box-type substation that is used for distribution line includes hyperbaric chamber, transformer room and low-pressure chamber, it is characterized in that:
In the hyperbaric chamber, dispose first high pressure ring turnover line cabinet, second high pressure ring turnover line cabinet and isolation knife, vacuum interrupter;
In transformer room's configuration, first distribution transformer and second distribution transformer are arranged;
In low-pressure chamber, dispose the first low pressure incoming line cabinet, the second low pressure incoming line cabinet and and their the first low pressure outlet switch cubicle, the second low pressure outlet switch cubicle, the 3rd low pressure outlet switch cubicle, capacitor compensation cabinet, batch meter, anti-electricity-theft monitoring and control management system casees of being electrically connected respectively;
Two high pressure ring turnover line cabinets in the hyperbaric chamber are electrically connected with two distribution transformers of transformer room respectively, and two distribution transformers are electrically connected with the first low pressure outlet switch cubicle, the second low pressure outlet switch cubicle of low-pressure chamber respectively;
Anti-electricity-theft monitoring and control management system case are used for follow load to be changed output capacity and the control capacitance compensating cabinet of adjusting two distribution transformers automatically and carries out reactive power compensation, also utilizes public network to carry out transfer of data to each data of electric weight of box-type substation and prevents stealing.
Some other characteristics of the present utility model are:
In the control management system of described anti-electricity-theft monitoring and control management system case dsp controller is arranged, it comprises: microprocessor DSP, module, RS232/ Wireless communication interface module and LCD demonstration and key-press module are imported/gone out to sampling module, data-storing module, clock and the parameter storage module, control signal output module, the switching value that are connected with the input of aanalogvoltage electric current on microprocessor DSP.
Described RS232/ Wireless communication interface module is used to realize the wireless mode communication or realizes wired mode communication.
Described distribution transformer divides three grades of follow loads variable, and two are not waited the capacity transformer heart to be integrated in the same fuel tank.
Described distribution transformer is oil immersion, or dry type.
Used high-voltage switch gear was combined electrical apparatus and fuse when the output capacity of distribution transformer changed capacity; Low tension switch is selected knife switch and vacuum contactor for use.
Above-mentioned distribution transformer is the variable capacity transformer, can export three kinds of different capabilities, by the variation of control device monitoring load, selects respective volume output, avoids the underloaded situation of the big capacity of distribution transforming, makes distribution transformer keep higher running efficiency.
Variable capacity box-type substation of the present utility model, the output capacity of its distribution transformer can be according to the variation of load, automatically control, adjust by custom-designed controller, and electrical parameter reached subscriber computer on the Internet by GPRS network, also can carry out reactive power compensation to load side.Box-type substation is specially adapted to the bigger distribution line of load variations, can adjust the capacity of transformer according to the variation of load automatically, avoid the low load with strong power phenomenon of light hours appearance, reduced the no-load loss and the idle line loss of transformer effectively, realized real-time monitoring the box-type substation operation conditions.
Description of drawings
Fig. 1 planar structure layout plan of the present utility model.
Wherein: square frame 1,2 is a 10kV high pressure ring turnover line cabinet, and 3 is that isolation knife, vacuum interrupter place in the hyperbaric chamber; 4,5 is the 10/0.4kV distribution transformer, places the transformer room; 6,7 is the low pressure incoming line cabinet; 8,9,10 is low pressure outlet switch cubicle; 11 is capacitor compensation cabinet; 12 is batch meter; 13 is anti-electricity-theft monitoring and control management system device case; 6-13 all places in the low-pressure chamber.
Fig. 2 is primary system figure of the present utility model (hyperbaric chamber and transformer room);
What wherein figure number was represented is 201. power transformers, 202. combined electrical apparatuses and fuse, 203.CT, 204. charged display unit, 205. lightning arresters, 206. ground connection cuttves, 4. a 10/0.4kV distribution transformer, 5. the 2nd 10/0.4kV distribution transformer;
Fig. 3 is primary system figure of the present utility model (low-pressure chamber);
What wherein figure number was represented is 301. knife switches and vacuum contactor, 302.CT, 303. knife switches, 304. circuit breakers (sky is opened), 305. lightning arresters, 306. fuses, 307. capacitors, 308. A.C. contactors
Fig. 4 is the controller principle block diagram;
Fig. 5 is the signal condition partial circuit figure of controller;
Fig. 6 is the demonstration and the keyboard portion circuit diagram of controller;
Fig. 7 is the segment signal output circuit diagram of controller; Wherein Fig. 7-a is that control cabinet becomes switch sections; Fig. 7-b is a control capacitor switching part;
Fig. 8 is the circuit diagram of data-storing, clock and the parameter storage and the communication part of controller;
Fig. 9 imports/goes out partial circuit figure for the controller switches amount;
Figure 10 is the circuit diagram of the DSP part of controller.
The utility model is described in further detail below in conjunction with embodiment that accompanying drawing and inventor provide.
Embodiment
According to the technical solution of the utility model, the variable capacity box-type substation is formed by transformer room, hyperbaric chamber with by the low-pressure chamber that low-tension switch cabinet, reactive power compensator, low-voltage distribution cabinet and batch meter and signal far-transmission device constitute.Be specially adapted to the bigger distribution line of load variations, can adjust the capacity of transformer according to the variation of load automatically, avoid the low load with strong power phenomenon of light hours appearance, reduced the no-load loss and the idle line loss of transformer effectively, realized real-time monitoring the box-type substation operation conditions.
Line voltage distribution, electric current send instruction after the signal condition of control unit, sampling, computing, analysis relatively makes corresponding high-voltage vacuum load switch and low-voltage vacuum contactor open or turn-off, to change the capacity of the distribution transformer that drops into circuit, and according to the vacancy automatic switching capacitor of the actual reactive power of transmission line, realized the requirement that the distribution transformer output capacity is adjusted automatically according to payload, make also that circuit is idle to obtain scientific and reasonable compensation, reached the purpose of saving energy and decreasing loss.
Place the transformer and the diverter switch thereof of two different capabilities in the transformer room; Devices such as high-voltage terminal cabinet, isolation knife, vacuum interrupter are arranged in the hyperbaric chamber; Low-pressure chamber comprises switch and reactive power compensator, low-voltage distribution and metering and signal far-transmission device.The exportable three kinds of different capabilities of variable capacity transformer by the variation of control device monitoring load, are selected respective volume output, avoid the underloaded situation of the big capacity of distribution transforming, make distribution transformer keep higher running efficiency, thereby significantly reduce no-load loss, reach energy-saving effect.
Meticulous low-pressure reactive compensation can make the loss of 10kV circuit reduce.This scheme not only makes the low-pressure side load idlely obtains full remuneration, but also can send the idle distribution transforming of giving from low-pressure side is counter, make that distribution transforming is required idlely to be compensated nearby, that is to say, crossed benefit from the distribution transforming low-pressure side to load, but from its power factor of distribution transforming high-pressure side still is perception, and cos can be up to 0.95～0.99.Both can make for this reason that load and distribution transforming are idle fully to be compensated, and can not bring any adverse effect, and still can stablize, reliably working 10kV circuit and transformer station.
The output capacity of distribution transformer can be controlled, be adjusted by custom-designed controller automatically according to the variation of load, and electrical parameter is reached subscriber computer on the Internet by GPRS network, also can carry out reactive power compensation to load side.
Control unit adopts the metal cabinet, for inside provides the electromagnetic shielding good working environment, the controller control unit is core with DSP, adopted and touched button and add liquid crystal and show as man-machine interface, carry out parameter setting and manual operation by touching button, by the liquid crystal display operational factor, have parameter characteristics such as convenient, fast, accurate, directly perceived, man-machine dialog interface close friend are set.
Apparatus arrangement of the present utility model comprises the transformer room, hyperbaric chamber, low-pressure chamber.One of the combination distribution transformer that the placement capacity does not wait in the transformer room (has two transformer cores that capacity do not wait and places same fuel tank, the distribution transformer that is equivalent to two different capabilities integrates) and corresponding high-low pressure wiring, ventilating fan and automatic temp controller etc.; Vacuum load switch that the placement transformer switches in the hyperbaric chamber and fuse, isolating switch, and can realize overload, overcurrent, short-circuit protection; Low-pressure chamber is placed contactor and reactive power compensation cabinet, low-voltage distribution cabinet, low-temperature measurement cabinet and anti-electricity-theft monitoring and the control management system device of changing-over transformer low voltage wiring.
Below be the specific embodiment that the inventor provides, but the utility model is not limited to this embodiment.Referring to Fig. 1, Fig. 1 planar structure layout plan of the present utility model mainly is divided into the hyperbaric chamber, transformer room and low-pressure chamber.
Fig. 2 is primary system figure (hyperbaric chamber and transformer room), and 1# distribution transformer 4 is connected with the 10KV bus through high pressure combined electrical apparatus and fuse 202 with 2# distribution transformer 5; The hyperbaric chamber also is furnished with charged display unit 204, lightning arrester 205, ground connection cutter 206 simultaneously; Control unit is by the size of opening and turn-offing the distribution transformer capacity that changes the input circuit of control high pressure combined electrical apparatus and fuse 202.
Fig. 3 is primary system figure (low-pressure chamber), 1 # distribution transformer 4 and 2# distribution transformer 5 link up with 0.4kV bus incoming line cabinet through knife switch and vacuum contactor 301, and control unit CT302 is by the size of opening and turn-offing the distribution transformer capacity that changes the input circuit of control knife switch 303 and vacuum contactor 301.Circuit breaker (sky is opened) 304 is arranged in each outlet cabinet, and it and knife switch 303 polyphones are provided with; Lightning arrester 305 is arranged in capacitor compensation cabinet, fuse 306, capacitor 307 and A.C. contactor 308, capacitor 307 is connected on the knife switch 303 by A.C. contactor 308, fuse 306.
Fig. 4 is the theory diagram of control unit, controller comprises: DSP, be connected with power supply, RS232 communication interface and GPRS wireless telecommunications part, sampling voltage signal condition and sampling output, data-storing part, clock and parameter storage part, control signal output on the DSP respectively, LCD shows and button partly, switching value imports/goes out part.
Fig. 5 is controller signals conditioning partial circuit figure. this part is made up of voltage transformer SPT204A, current transformer SCT254AZ, operational amplifier LM324N and resistance.The output of this part signal directly links to each other with the A/D of DSP, and its effect is that sampled signal is modulated to signal in the DSP analog signal input range.
Fig. 6 is the demonstration and the button partial circuit figure of controller.This part is made up of two-way latching/buffer 74245 and LCD module and 4 buttons, links to each other with DSP, and it act as: LCD shows various data, and keyboard then provides the interface of selecting every function and various parameters being set;
Fig. 7 is the segment signal output of controller; Wherein, Fig. 7-a is the switch sections that control cabinet becomes; Fig. 7-b is a control capacitor switching part; This part mainly by optocoupler TLP521-4, reverse buffer ULN2803, and the 4.7K exclusion forms, adopt photoelectricity to isolate, reverse buffer spare can strengthen the dsp system anti-interference and export driving force;
Fig. 8 is data-storing, clock and the parameter storage and the communication part of controller; This part is made of Nonvolatile ferroelectric random asccess memory chip FM24C16, clock chip PCF8563, RS232 interface and transceiving chip MAX232e.This part directly links to each other with DSP, and it act as: real-time time and storage parameter are provided, and store corresponding historical data according to user's needs.Control on Communication then can be carried out transfer of data in wired or wireless mode with host computer by the RS232 serial ports.
Fig. 9 imports/goes out partial circuit figure for the controller switches amount; This part mainly is made up of optocoupler TLP521-4 and 0.1uf filter capacitor; It act as mainly is to return the high-pressure vacuum switch at transformer two ends and the folding condition of low-voltage vacuum contactor.
Figure 10 is the circuit diagram of the DSP part of controller.DSP is as the core of controller, the various data of treatment system, and send corresponding instruction.
Principle of the present utility model is, sampling voltage, electric current read for DSP through instrument transformer and A/D conversion back, can calculate each electric parameter (U, I, cos , P, Q, KWH etc.) of circuit, according to the size of load current and the running status of transformer, deciding the action of switching transformer. the dsp control signal output sends instruction after the delay value of setting is delayed time, make corresponding combined electrical apparatus and switch of vacuum contactor conducting or shutoff, thereby the capacity of transformer is adjusted.When low-pressure end has reactive loss, DSP can be according to the idle amount that is lacked, send instruction by output, select corresponding capacitor switching, reaching the purpose of compensating reactive power. the utility model can also be sent to the remote monitoring center by the GRPS network with each electric parameter simultaneously, and can and report remote monitoring center according to the parameter bound real-time judge fault that is provided with, convenient monitoring, management.
Hyperbaric chamber and low-pressure chamber also are furnished with various protective devices (as: fuse etc.); when short trouble appears in circuit; fuse is fusing in time; the DSP control unit can in time send action command to switch when fault such as under-voltage, overvoltage, phase shortage occurring when circuit, thus the safety of protective device and user side equipment.
In addition, moving in order to prevent switch lock, also be provided with delay time, according to the different requirements of switching action, specifically be set to excise delay time and drop into delay time time-delay.Too much in order to prevent action frequency, be provided with a day switching frequency restriction.Action to transformer both sides switch is provided with blanking time.
The utility model has adopted anti-electricity-theft remote monitoring and management system, has improved intelligent level, not only can be effectively anti-electricity-theft, also can be in the operation conditions of monitoring of electric industry management division office and management box change, make things convenient for the user, alleviated labour intensity, improved managerial skills.
This management system for monitoring function is as follows:
1. but each electrical parameter (U, I, cos , P, Q, KWH etc.) of becoming of this system teletransmission case;
2. the fault judgement of case change has real-time; And in time report to the responsible person with the short message form;
3. voltage, electric current bound and data can be set report parameters such as the time interval;
4. adopt the channel of GPRS wireless network, have the characteristics of " always online " and " chargeing according to quantity " as transfer of data;
5. can in time find to have or not the stealing situation to take place;
6. this system supports multiple means of communications such as GPRS/CDMA.
Effect of the present utility model is:
1. adopted the variable-displacement distribution transformer, the two-core transformer that capacity does not wait places same fuel tank, can divide three grades of change capacity;
2. real-time monitoring circuit load condition, follow load changes automatically, adjusts the input capacity of transformer;
3. automatically floating voltage changes, and monitors output voltage in real time, carries out failure judgment such as overvoltage, decompression, the phase failure and makes respective handling;
4. control unit adopts the technical grade chip, the reliability height, and antijamming capability is strong, can be used for adverse circumstances;
5. low-pressure reactive compensation can make load and distribution transforming fully be compensated, and effectively realizes saving energy and decreasing loss;
6. remote monitoring and management system can be effectively anti-electricity-theft, also can improve intelligent level in the operation conditions of monitoring of electric industry management division office and management box change;
7. the vacuum load switch that switching transformer drops into is housed in the hyperbaric chamber, can realizes functions such as overload, overcurrent, short-circuit protection;
8. control device has perfect switching interlock function, prevents the misoperation that produces under the various situations;
9. switch state signal has improved the circuit antijamming capability by the photoisolator input unit;
10. simple in structure, be convenient to safeguard and install.
Claims (7)
1. a variable capacity box-type substation that is used for distribution line includes hyperbaric chamber, transformer room and low-pressure chamber, it is characterized in that:
In the hyperbaric chamber, dispose first high pressure ring turnover line cabinet, second high pressure ring turnover line cabinet and isolation knife, vacuum interrupter;
In transformer room's configuration, first distribution transformer and second distribution transformer are arranged;
In low-pressure chamber, dispose the first low pressure incoming line cabinet, the second low pressure incoming line cabinet and and their the first low pressure outlet switch cubicle, the second low pressure outlet switch cubicle, the 3rd low pressure outlet switch cubicle, capacitor compensation cabinet, batch meter, anti-electricity-theft monitoring and control management system casees of being electrically connected respectively;
Each high pressure ring turnover line cabinet in the hyperbaric chamber is electrically connected with two distribution transformers of transformer room respectively, and two distribution transformers are electrically connected with the first low pressure outlet switch cubicle, the second low pressure outlet switch cubicle of low-pressure chamber respectively;
Anti-electricity-theft monitoring and control management system case are used for follow load to be changed output capacity and the control capacitance compensating cabinet of adjusting two distribution transformers automatically and carries out reactive power compensation, also can utilize public network to be uploaded to the user information such as the electrical parameter of box-type substation, failure condition and can prevent stealing.
2. variable capacity box-type substation as claimed in claim 1, it is characterized in that, in the control management system of described anti-electricity-theft monitoring and control management system case dsp controller is arranged, it comprises: microprocessor DSP, module, RS232/ Wireless communication interface module and LCD demonstration and key-press module are imported/gone out to sampling module, data-storing module, clock and the parameter storage module, control signal output module, the switching value that are connected with the input of aanalogvoltage electric current on microprocessor DSP.
3. variable capacity box-type substation as claimed in claim 2 is characterized in that, described RS232/ Wireless communication interface module is used to realize the wireless mode communication or realizes wired mode communication.
4. variable capacity box-type substation as claimed in claim 1 is characterized in that, described distribution transformer divides three grades of follow loads variable, and two are not waited the capacity transformer heart to be integrated in the same fuel tank.
5. variable capacity box-type substation as claimed in claim 1 is characterized in that described distribution transformer is oil immersion, or dry type.
6. variable capacity box-type substation as claimed in claim 1 is characterized in that, used high-voltage switch gear was combined electrical apparatus and fuse when the output capacity of distribution transformer changed capacity; Low tension switch is selected knife switch and vacuum contactor for use.
7. variable capacity box-type substation as claimed in claim 1 is characterized in that, described distribution transformer is the variable capacity transformer, and it can export three kinds of different capabilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200863597U CN2773958Y (en) | 2004-12-13 | 2004-12-13 | Boxed variable-capacity substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200863597U CN2773958Y (en) | 2004-12-13 | 2004-12-13 | Boxed variable-capacity substation |
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| CN2773958Y true CN2773958Y (en) | 2006-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2004200863597U Expired - Fee Related CN2773958Y (en) | 2004-12-13 | 2004-12-13 | Boxed variable-capacity substation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361240A (en) * | 2011-06-13 | 2012-02-22 | 郭建厂 | Intelligent type totally-enclosed transformer platform |
| WO2013078760A1 (en) * | 2011-11-30 | 2013-06-06 | 连云港星火岸电工程有限公司 | Shipborne transformer substation |
| CN103178451A (en) * | 2013-04-23 | 2013-06-26 | 山东中奥电力设备有限公司 | Miniature power grid terminal transformation and distribution system |
| CN103280839A (en) * | 2013-05-30 | 2013-09-04 | 山东计保电气有限公司 | Different-capacitance transformer paralleling alternate operation electricity-saving method and device |
| CN103311833A (en) * | 2013-06-21 | 2013-09-18 | 国家电网公司 | Small-size intelligent prefabricated substation |
| CN103441438A (en) * | 2013-08-20 | 2013-12-11 | 北京电研华源电力技术有限公司 | On-load capacitance regulating box-type transformer substation |
| CN103491692A (en) * | 2013-10-14 | 2014-01-01 | 广东北江开关厂有限公司 | Intelligent electric system for illumination |
| CN105098620A (en) * | 2015-09-07 | 2015-11-25 | 广东紫光电气有限公司 | Combined type transformer with intelligent communication demarcation circuit breaker switch function |
| CN105140813A (en) * | 2015-10-19 | 2015-12-09 | 山东驰翔电气有限公司 | Compact American-type substation |
| CN105958352A (en) * | 2016-05-30 | 2016-09-21 | 包头市展浩电气股份有限公司 | Assembled double-transformer intelligent transformer station |
| CN106877315A (en) * | 2017-03-17 | 2017-06-20 | 桂林君泰福电气有限公司 | Distributed power supply-distribution system is pressed in being used in a kind of high-rise building |
| CN112491061A (en) * | 2020-11-20 | 2021-03-12 | 国网安徽省电力有限公司黄山供电公司 | Line loss control method for distribution substation under seasonal load |
-
2004
- 2004-12-13 CN CNU2004200863597U patent/CN2773958Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361240A (en) * | 2011-06-13 | 2012-02-22 | 郭建厂 | Intelligent type totally-enclosed transformer platform |
| WO2013078760A1 (en) * | 2011-11-30 | 2013-06-06 | 连云港星火岸电工程有限公司 | Shipborne transformer substation |
| CN103178451B (en) * | 2013-04-23 | 2016-07-20 | 山东中奥电力设备有限公司 | A kind of small-sized transformation and distribution system of electric network terminal |
| CN103178451A (en) * | 2013-04-23 | 2013-06-26 | 山东中奥电力设备有限公司 | Miniature power grid terminal transformation and distribution system |
| CN103280839A (en) * | 2013-05-30 | 2013-09-04 | 山东计保电气有限公司 | Different-capacitance transformer paralleling alternate operation electricity-saving method and device |
| CN103280839B (en) * | 2013-05-30 | 2016-05-11 | 山东计保电气有限公司 | Different appearance transformer alternate run power-saving method arranged side by side and device |
| CN103311833A (en) * | 2013-06-21 | 2013-09-18 | 国家电网公司 | Small-size intelligent prefabricated substation |
| CN103441438A (en) * | 2013-08-20 | 2013-12-11 | 北京电研华源电力技术有限公司 | On-load capacitance regulating box-type transformer substation |
| CN103491692A (en) * | 2013-10-14 | 2014-01-01 | 广东北江开关厂有限公司 | Intelligent electric system for illumination |
| CN103491692B (en) * | 2013-10-14 | 2016-03-02 | 广东北江开关厂有限公司 | A kind of intelligent electric system for illumination |
| CN105098620A (en) * | 2015-09-07 | 2015-11-25 | 广东紫光电气有限公司 | Combined type transformer with intelligent communication demarcation circuit breaker switch function |
| CN105140813A (en) * | 2015-10-19 | 2015-12-09 | 山东驰翔电气有限公司 | Compact American-type substation |
| CN105958352A (en) * | 2016-05-30 | 2016-09-21 | 包头市展浩电气股份有限公司 | Assembled double-transformer intelligent transformer station |
| CN105958352B (en) * | 2016-05-30 | 2018-01-02 | 包头市展浩电气股份有限公司 | Pin-connected panel dual transformer intelligent substation |
| CN106877315A (en) * | 2017-03-17 | 2017-06-20 | 桂林君泰福电气有限公司 | Distributed power supply-distribution system is pressed in being used in a kind of high-rise building |
| CN106877315B (en) * | 2017-03-17 | 2023-06-30 | 桂林君泰福电气有限公司 | Medium-voltage distributed power supply and distribution system for high-rise building |
| CN112491061A (en) * | 2020-11-20 | 2021-03-12 | 国网安徽省电力有限公司黄山供电公司 | Line loss control method for distribution substation under seasonal load |
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