A kind of energy-economic transformer with adaptation function
Technical field
The utility model relates to the energy-economic transformer of field of electrical equipment, is specifically related to a kind of energy-economic transformer with adaptation function.
Background technology
The distribution transformer that has at present energy-saving effect continues to bring out, but its power-saving technology that adopts is used two aspects nothing more than single new material or new construction, these products mostly only have the in a certain respect power savings advantages of one side, as the S11 type distribution transformer and the SH15 type amorphous alloy transformer that adopt high performance silicon steel disc or amorphous alloy material to make, also or the S13 type three dimensional wound core distribution transformer that adopts the three dimensional wound core technology to make, although having had significantly, improves their energy-saving effect, but further energy-conservation space is also very large, and they can't solve some long-standing problems in the electrical network: as have season load or daily load and change greatly rural area and downtown, Industry Development Area, 10kV distribution district and the box-type substations such as residential block, in peak of power consumption season, the transformer overload phenomenon is serious, line voltage is on the low side, and reactive loss increases; In electricity consumption dull season, the transformer load rate is lower, the phenomenon of " low load with strong power " occurred, causes voltage higher on the other hand, and no-load loss is large, has seriously reduced the useful life of power consumption equipment.And variable capacitance and energy-saving transformer, not only energy-saving effect is very remarkable, reduce in power grid construction investment and the equipment Manufacture Process raw-material consumption, and can effectively solve above-mentioned puzzlement electric power netting safe running problem for many years, raising safe operation of electric network, power supply quality and power supply reliability.
Be the high load capacity that occurs in short-term in the reply operation of power networks, ensure the security of operation of electrical network, the consistent method that adopts is that the peak load that may occur by this place when power grid construction is carried out the design and equipment configuration, because in the actual motion 10% of such not enough whole equipment uptime of short-term load (duty) proportion even lower, but in order to guarantee safety, also can only be like this.The investment that has strengthened power grid construction so on the one hand on the other hand, does not allow long-time outage after in a single day transformer puts into operation, otherwise very easily causes the damage of transformer even scrap.Solving such problem method commonly used is that the installing primary and secondary becomes or single increase transformer capacity dual mode.Although these modes have solved subproblem, exist many problems: 1, primary and secondary is installed, and to become construction investment and the maintenance cost that will cause higher, and the no-load loss that two transformers move simultaneously is larger; 2, also there is the problem that investment is large and no-load loss increases in single increase transformer capacity; 3, because the load factor of most of the time transformer is on the low side, can cause voltage higher, the problems such as useful life of the ageing of insulation that no-load loss increases and extended overvoltage causes and reduction power consumption equipment.
Therefore, adopt the adaptive power conservation transformer, by using the non-crystaline amorphous metal energy-saving material, single frame seamless winding technology unshakable in one's determination, three dimensional wound core energy-saving structure and large low capacity are automatically regulated multiple energy saving technology and are organically combined and optimize, realize at utmost reducing transformer noload losses, reduce in power grid construction investment and the equipment Manufacture Process raw-material consumption, and efficiently solve puzzlement electric power netting safe running problem for many years, improve safe operation of electric network, power supply quality and power supply reliability, effectively solve the automatic adjusting problem of load in the long-term puzzlement operation of power networks, improve safe operation of electric network, power supply quality and power supply reliability reduce the power grid construction investment.
How under the prerequisite that ensures electric power netting safe running, improve power supply quality and power supply reliability, reduce to greatest extent the transformer running wastage, realize that distribution transformer capacity in service is with problems such as the automatic adjustings of load variations, be the hard nut to crack of puzzlement power system operation safety, fail for a long time effectively to solve.
No matter the manufacturing employing method of these distribution transformer cores coilings and transformer, but they have common characteristics, that has used a certain power-saving technology exactly, as the amorphous alloy distribution transformer that adopts the amorphous alloy material manufacturing, adopt the manufacturing of three dimensional wound core technology based on the three dimensional wound core distribution transformer of silicon steel sheet and adopt loading capacitance-regulating distribution transformer that silicon steel sheet makes etc.Their common shortcomings have adopted single power-saving technology or material exactly, be subjected to the high rigidity of amorphous alloy material and the restriction of super brittle behavior, the method of three dimensional wound core amorphous alloy transformer iron core coiling and difficulty of processing are all very large, the power-saving technology of these several respects can not be organically combined, farthest bring into play the energy-saving effect of distribution transformer.Therefore, again further optimal design and processing after how various advanced persons' power-saving technology being organically combined, can self adaptation to load variations, namely possess the regulatory function of carrying is arranged automatically, and separately power savings advantages and performance advantage of performance farthest, be the new problem that the Energy Saving for Distribution Transformer technical research faces.
The utility model content
For the deficiencies in the prior art, the utility model provides a kind of energy-economic transformer with adaptation function, this energy-economic transformer is by using the non-crystaline amorphous metal energy-saving material, single frame seamless winding technology unshakable in one's determination, three dimensional wound core energy-saving structure and large low capacity are automatically regulated multiple energy saving technology and are organically combined and optimize, realize at utmost reducing transformer noload losses, reduce in power grid construction investment and the equipment Manufacture Process raw-material consumption, and efficiently solve puzzlement electric power netting safe running problem for many years, improve safe operation of electric network, power supply quality and power supply reliability.
The purpose of this utility model is to adopt following technical proposals to realize:
A kind of energy-economic transformer with adaptation function, its improvements are that described energy-economic transformer comprises three dimensional wound core 3;
Described three dimensional wound core 3 is that to become cross section by 3 single frame iron core combinations be the stereochemical structure of equilateral triangle; The described single frame seamless continuous coiling of non-crystaline amorphous metal permeability magnetic material that adopts unshakable in one's determination forms;
Be wound with low pressure winding 4 and high pressure winding 5 on the described three dimensional wound core 3;
The tap that described low pressure winding 4 is connected with the high pressure winding is connected with loaded capacity-regulated switch 6 respectively;
Between the wire turn of described low pressure winding 4 in parallel or be connected in series; Described high pressure winding 5 connects or Y-connection for triangle.
Preferably, described energy-economic transformer comprises upper clamping piece 1 and lower clamping piece 2; Between described upper clamping piece 1 and lower clamping piece 2, be provided with described three dimensional wound core 3; Described loaded capacity-regulated switch 6 is installed on the fuel tank 7.
Preferably, described single frame core section is symmetric shape; Described symmetric shape comprises circle, polygon, ellipse.
More preferably, described ellipse satisfies ratio 〉=0.95 of minor axis and major axis.
More preferably, described seamless continuous coiling refers to described non-crystaline amorphous metal permeability magnetic material is adopted the mode of longitudinal shear continuous coiling.
Preferably, described three dimensional wound core 3 is that to become cross section by 3 described single frame iron core combinations be the stereochemical structure of equilateral triangle, and it is 1/2 of heart column section that described three dimensional wound core 3 satisfies iron yoke unshakable in one's determination cross section.
Preferably, described high pressure winding 5 lead-out wires comprise the triangle realized between the high pressure winding and 6 taps of two kinds of connected modes conversions of star; Described low pressure winding 4 lead-out wires comprise 9 taps of the two kinds of connected mode conversions of series and parallel that realize low pressure winding wire turn-to-turn.
Preferably, described loaded capacity-regulated switch 6 comprises insulation supporting cylinder, operating mechanism, insulated transmission axle, high pressure moving contact and low pressure moving contact;
Be fixed with 2 groups of high pressure fixed contacts and 2 groups of low pressure fixed contacts on the described insulation supporting cylinder barrel, described 2 groups of high pressure fixed contacts are positioned on the same horizontal plane, and described 2 groups of low pressure fixed contacts are positioned on another horizontal plane;
One end of described high pressure fixed contact is fixedly connected with by the static pressure mode with high pressure winding 5 lead-out wires, and the other end suspends;
One end of described low pressure fixed contact is fixedly connected with by the static pressure mode with low pressure winding 4 lead-out wires, and the other end suspends;
Described high pressure moving contact and low pressure moving contact are installed in center take insulation supporting cylinder on same shaft insulation of axis; Described high pressure moving contact and low pressure moving contact rotate together along with shaft insulation and velocity of rotation equates;
Described shaft insulation is connected with described operating mechanism.
More preferably, described loaded capacity-regulated switch 6 by with shaft insulation that operating mechanism is connected on the rotation of high pressure moving contact realize switching between described high pressure winding 5 triangles and Y-connection, and by with shaft insulation that operating mechanism is connected on the rotation of low pressure moving contact realize the switching of described low pressure winding 4 series and parallel connections between connecting.
Preferably, described energy-economic transformer comprises loaded capacity-regulated controller; Described loaded capacity-regulated controller is fixed on the top cover of described energy-economic transformer.
More preferably, described loaded capacity-regulated controller is fixed in the control cabinet of transformer, comprises manual capacity transfer control mode and automatic capacity transfer control mode; Two kinds of each other lockings of control mode.
Compared with the prior art, the beneficial effect that reaches of the utility model is:
1, the energy-economic transformer that the utility model provides, organic synthesis many transformer energy saving technology, selection by energy-saving material, coiling unshakable in one's determination, the core construction design, the combination of the structural design of high-low pressure winding and the aspects such as design of loaded capacity-regulated construction of switch and again optimization, captured in the non-crystaline amorphous metal permeability magnetic material winding process material itself because of an extremely crisp and extremely rigid difficult problem that is difficult to embark on journey that causes, realize seamless coiling and the three-dimensional assembly unit of non-crystaline amorphous metal permeability magnetic material, taken full advantage of the premium properties that the non-crystaline amorphous metal permeability magnetic material can significantly reduce transformer noload losses.
2, the energy-economic transformer that the utility model provides, the three dimensional wound core structure has the advantage that reduces the use of coil copper wire material, improve amorphous alloy material utilance and activity coefficient, and then reach the purpose of the no-load loss of further reduction transformer, again by design and combination to high pressure winding and low pressure winding construction, use loaded capacity-regulated controller and loaded capacity-regulated switch, having possessed transformer is in operation and automatically carries out the capacity regulating function according to load variations, raising safe operation of electric network level and power supply quality have been reached, the purpose that reduces the power grid construction investment and significantly save energy and reduce the cost.
3, the energy-economic transformer that provides of the utility model, its structural principle is simple, has innovation and practical value.
4, the energy-economic transformer that provides of the utility model compared with the prior art, can and calculate in all constant situation in permeability magnetic material, transformer device structure design, power supply quality and transformer Operation safety and useful life have been improved, equipment construction investment and integral device have been reduced to raw-material consumption, farthest reduced no-load loss and the total losses of transformer, it has very significant energy-saving effect.
5, the utility model is implemented convenience, wide application, good economy performance; The rural power grids seaonal load variation that the utility model can be widely used in electric power system reaches more greatly daily load variation occasion greatly, and the no-load loss of decrease transformer realizes energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the energy-economic transformer cut-away view that the utility model provides;
Fig. 2 is the energy-economic transformer outline drawing that the utility model provides;
Fig. 3 be the utility model provide the energy-economic transformer high-volume run time high pressure winding triangle catenation principle figure;
Fig. 4 be the utility model provide the energy-economic transformer high-volume run time low pressure winding Y-connection (in parallel between the wire turn) schematic diagram;
Fig. 5 is energy-economic transformer low capacity when operation high pressure winding Y-connection schematic diagram that the utility model provides;
Fig. 6 is energy-economic transformer low capacity when operation low pressure winding Y-connection (connecting between the wire turn) schematic diagram that the utility model provides;
Fig. 7 is energy-economic transformer and the loaded capacity-regulated switch high-pressure side winding connection diagram that the utility model provides;
Fig. 8 is energy-economic transformer and the loaded capacity-regulated switch low-pressure side winding connection diagram that the utility model provides.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
The utility model provides a kind ofly has a kind of energy-economic transformer with adaptation function, as shown in Figure 1, Fig. 1 is the energy-economic transformer cut-away view that the utility model provides, comprise: upper clamping piece 1 and lower clamping piece 2, be provided with three dimensional wound core 3 between upper clamping piece 1 and the lower clamping piece 2, be wound with low pressure winding 4 and high pressure winding 5 on the three dimensional wound core 3, low pressure winding and high pressure tapping are connected with special loaded capacity-regulated switch 6, loaded capacity-regulated switch is installed on the fuel tank 7, as shown in Figure 2, Fig. 2 is the energy-economic transformer outline drawing that the utility model provides.
By adopt non-crystaline amorphous metal permeability magnetic material, single frame seamless winding technology, equilateral three dimensional wound core structure unshakable in one's determination, high pressure winding 5 is designed to can be in triangle and two kinds of connected mode transformational structures of star Δ-Y; Be designed to the transformational structure of two kinds of connected modes of connection in series-parallel between the low pressure winding wire turn, be equipped with special loaded capacity-regulated switch and controller, significantly reduced the no-load loss of variable capacitance and energy-saving transformer and to raw-material consumption, and realized that variable capacitance and energy-saving transformer is automatically according to load variations.
The energy-economic transformer that the utility model provides reaches the conversion of the series and parallel between low pressure winding 4 wire turns between triangle connection and Y-connection by high pressure winding 5, and then reach free adjustment between the large low capacity of same transformer, final realization improves safe operation of electric network level and power supply quality, the purpose that reduces the power grid construction investment and significantly save energy and reduce the cost.The energy-economic transformer with adaptation function that the utility model provides can be widely used in the variation of rural power grids seaonal load and reach more greatly daily load variation occasion greatly.
The core material of three dimensional wound core 3 can be that any known non-crystaline amorphous metal permeability magnetic material or their assembly are made, such as Fe-based amorphous alloy, iron ni-based amorphous alloy, cobalt base amorphous alloy, nanometer crystal alloy (ultramicro-crystal alloy) etc.
Independently single frame is unshakable in one's determination to adopt the non-crystaline amorphous metal permeability magnetic material seamless continuous coiling technology to form one, becomes the equilateral triangle stereochemical structure of a three-phase symmetrical unshakable in one's determination with three identical single frame iron core combinations again.The equilateral triangle stereochemical structure satisfies 1/2 the condition that iron yoke unshakable in one's determination cross section is heart column section.
The cross section of single frame iron core can be circle, polygon, ellipse and other symmetric shape.Ellipse satisfies ratio 〉=0.95 of minor axis and major axis.
The three dimensional wound core 3 of equilateral triangle stereochemical structure significantly improves the utilization rate of amorphous alloy strips, saves raw material, and has reduced the three characteristics of the middle term magnetic circuit inconsistent three-phase current unbalance that causes of distance and triple-frequency harmonics, has improved transformer Short Circuit withstand fault ability; Owing to there has not been the lamination seam, reduce magnetic resistance unshakable in one's determination so on the one hand, and then reduced noise, no-load loss and electromagnetic field intensity when transformer moves, improved on the other hand activity coefficient unshakable in one's determination, reduced winding unshakable in one's determination average turn long, also just saved coil copper material use amount; Reduced so whole product to raw-material consumption.
High pressure winding coil and low pressure winding coil; its high pressure winding lead-out wires of coil comprises 6 taps of two kinds of connected mode conversions of Δ-Y that can realize 5 of high pressure windings; its low pressure winding coil lead-out wire comprises 9 taps of two kinds of connected modes of series and parallel conversion that can realize 4 of low pressure windings, and reaching energy-economic transformer can carry out the purpose of regulating between large low capacity automatically according to the actual load protection.The high pressure winding coil is that triangle connects or Y-connection, and two kinds of connected modes are changed mutually.The low pressure winding coil is Y-connection, is connected in series or in parallel between its wire turn, can mutually change between the series and parallel connections.By the effect of loaded capacity-regulated switch and loaded capacity-regulated controller, realize that carrying out real-time having continuously according to the actual load size variation carries and switch.At utmost reduce transformer noload losses, reduce in power grid construction investment and the equipment Manufacture Process raw-material consumption, and efficiently solve and perplex electric power netting safe running problem for many years, improved safe operation of electric network, power supply quality and power supply reliability.Shown in Fig. 3-6, be that the triangle of high pressure winding before and after the capacity transfer connects and the conversion of Y-connection, and the conversion of series and parallel between the low pressure winding wire turn.
Energy-economic transformer provided by the invention also comprises the loaded capacity-regulated switch 6 that is fixed in the transformer-cabinet.Described loaded capacity-regulated switch is an individual components, is comprised of insulation supporting cylinder, operating mechanism, insulated transmission axle and high and low pressure moving contact.Be fixed with 2 groups of high pressure fixed contacts and 2 groups of low pressure fixed contacts on its insulation supporting cylinder barrel, 2 groups of high pressure fixed contacts and 2 groups of low pressure fixed contact end views are a rectangle, and 2 groups of high pressure fixed contacts are positioned on the same horizontal plane, and 2 groups of low pressure fixed contacts are positioned on another horizontal plane.
The insulation supporting cylinder of the high and low fixed contact outside one end is corresponding respectively to be fixedly connected with by the static pressure mode with the high and low pressure winding leads of transformer, high and low fixed contact the insulation supporting cylinder inboard other end suspend; High pressure moving contact and low pressure moving contact are installed in center take insulation supporting cylinder on the shaft insulation of axis; shaft insulation upper end (head cover of transformer) is connected with loaded capacity-regulated switch operating mechanism; the high and low pressure moving contact is along with shaft insulation rotates together; externally under the control of loaded capacity-regulated controller; realize two kinds of connected modes conversions of Δ-Y between the high pressure winding and the two kinds of connected modes conversions of series and parallel between the low pressure winding, reaching transformer can carry out the purpose of regulating between large low capacity automatically according to the actual load protection.
Loaded capacity-regulated switch 6 is connected with high pressure winding 5 triangles, with 4 Y-connections of low pressure winding.Shown in Fig. 7-8, be energy-economic transformer and loaded capacity-regulated switch high-pressure side, low-pressure side winding connection diagram.
The energy-economic transformer that the utility model provides also comprises the loaded capacity-regulated controller that is fixed on transformer outside (transformer loam cake).Described loaded capacity-regulated controller has two kinds of control modes of manual and automatic capacity transfer, and each other locking; The loaded capacity-regulated switch high and low shift of energy Real-Time Monitoring bit capacity position, switch on-off state, and according to load, accurately control loaded capacity-regulated switch motion, after shutting down again power supply, automatically control and switch to high-volume run mode function; Possess the Real-Time Monitoring capacity transfer and become operational factor, data acquisition and processing (DAP) function, comprise the functions such as monitoring loaded capacity-regulated transformer low-pressure side three-phase voltage, three-phase current, three phases active power, three phase reactive power, power factor; Thresholding with high tap position, low-grade location switching is set and is adjusted operate time, and CT no-load voltage ratio, messaging parameter and mailing address are set, and clock setting, capacity transfer number of times are removed, the cumulative time removes and recover the control parameter tuning function such as factory setting; Have capacity transfer number of times and operation cumulative time, record Gao Rong, the low capacity transfer number of times that holds, high and low appearance accumulated running time record, the transient data in the capacity transfer process: constantly current value of capacity transfer, high hold and low when holding capacity transfer interocclusal record, integral point every day three-phase electricity flow valuve, magnitude of voltage, active power, reactive power, power factor and capacitance switch location status, locking information, device warning information, device restarting information, manually control, automatically control, Long-distance Control state constantly switch service data and the logout memory functions such as record; Have that function and the data that the states such as various control modes to controller, alarm, locking, operation indicate are downloaded, program upgrade reaches the functions such as telecommunication on the spot.
The energy-economic transformer with adaptation function that the utility model provides, use at the non-crystaline amorphous metal permeability magnetic material, single frame seamless winding technology unshakable in one's determination, equilateral three dimensional wound core structure, the high pressure winding is designed to can be in two kinds of connected mode transformational structures of Δ-Y, the low pressure Winding Design becomes can be at string, two kinds of connected mode transformational structures in parallel, be equipped with on the basis of the multinomial new technologies such as special loaded capacity-regulated switch and controller and carry out optimum organization, significantly reduced the no-load loss of energy-conservation loaded capacity-regulated transformer and to raw-material consumption, and realize that variable capacitance and energy-saving transformer is automatically according to load variations, by high-tension coil between delta connection and the star connection, Y connection and the low-voltage coil wire turn between string, conversion in parallel, and then reach free adjustment between the large low capacity of same transformer, final realization improves safe operation of electric network level and power supply quality, the purpose that reduces the power grid construction investment and significantly save energy and reduce the cost.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.