CN203405543U - Novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer - Google Patents
Novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer Download PDFInfo
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- CN203405543U CN203405543U CN201320524669.1U CN201320524669U CN203405543U CN 203405543 U CN203405543 U CN 203405543U CN 201320524669 U CN201320524669 U CN 201320524669U CN 203405543 U CN203405543 U CN 203405543U
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- transformer
- silicone gasket
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- frequency resonance
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Abstract
The utility model discloses a novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer. The transformer comprises a 380V plug, a power supply control device, a capacitive voltage divider, an insulation pedestal, two ferroresonant transformers and four boost transformer units. Two boost transformer units and one ferroresonant transformer are sequentially overlapped in a series connection manner, and the other two boost transformer units and the other ferroresonant transformer are also sequentially overlapped in a series connection manner and are arranged on an installation chassis via the insulation pedestal. The 220 KV vehicle-mounted type magnetic power frequency resonance test transformer has reasonable and skillful structure design that the boost transformer units and the ferroresonant transformers are overlappedly arranged in two groups, wherein one of the groups is arranged on the insulation pedestal to form a series connection structure, so that the size of the transformer is effectively minimized, the transportation height is reduced, the mobility of the transformer is high, the transformer can be easily mounted in a vehicle, and therefore the transformer is convenient to operate and use.
Description
Technical field
The utility model relates to magnetic double purpose transformer for line-frequency resonance test technical field, particularly a kind of novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test.
Background technology
Testing transformer is mainly used in carrying out withstand voltage test to electrical equipment or device, to find out insulation defect or the hidden danger of test specimen.In withstand voltage test process, trial voltage is added in the insulation of test specimen can produce capacitive reactive power electric current, and the larger test current of ground capacitance of test specimen is also larger, and the power needing is also just larger.Therefore the load of testing transformer is pure capacitive reactive power load.For the power equipment of large capacitance, as crosslinked polyethylene mesolow/high pressure/ultrahigh voltage power cable (XLPE), totally-enclosed high-voltage combined electrical apparatus (GIS), generator unit stator, high-power transformer, overhead power line, power capacitor etc., common low-tension supply cannot meet the requirement of capacity of experiment.Because testing transformer institute on-load is all capacitive reactive power, therefore can be by providing the identical idle way compensating of perception to reduce the capacity of power supply.When using a reactor that its reactance value is equated with test product capacitor value, if reactor is connected with test product, form series resonance test loop, if reactor is in parallel with test product, form parallel resonance test loop, while there is resonance, the perception of reactor is idle to be offset completely with capacitive reactive power test product, power supply only need to provide very little active power, during Resonance Voltage Withstand Test technology that Here it is.According to the difference of reactance value regulative mode, during Resonance Voltage Withstand Test technology has variable-frequency series-resonance transformer, machinery to adjust gap to adjust sense industrial frequency resonance transformer and magnetic industrial frequency resonance transformer etc.
Existing testing transformer is bulky, complex structure, and volume is heavy, and poor mobility can not fill onboard and use, and use neither be very convenient.
Utility model content
For above-mentioned deficiency, the utility model object is to provide a kind of reasonable in design, ingenious, and volume is little, easy to use and be convenient to mobile 220KV vehicular magnetic double purpose transformer for line-frequency resonance test.
For achieving the above object, the technical scheme providing is the utility model:
A kind of novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test, it comprises 380V plug, power control, capacitive divider, insulator foot, two ferroresonance transformers and the four change unit that boosts, two boost become unit by with a ferroresonance transformer by order from top to bottom successively tandem stack, and be arranged on the center-left side position that underframe is installed, another two boost become unit by with another ferroresonance transformer by order from top to bottom successively tandem stack, and by described insulator foot, be arranged on the center-right side position that underframe is installed, described power control is arranged on this installation underframe one side, and be connected with described ferroresonance transformer, described capacitive divider is arranged on the opposite side that underframe is installed, and this capacitive divider with described in boost and become unit and be connected with test product.
As a kind of improvement of the present utility model, described power control comprises power controling box and the monitoring backstage being connected with this power controling box, and this power controling box is arranged on described installation underframe.
As a kind of improvement of the present utility model, the two side symmetry of described installation underframe is respectively provided with vehicle-mounted erecting device, this vehicle-mounted erecting device comprises mount pad, upper silicone gasket, lower silicone gasket, screw and nut, described mount pad comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice, and be provided with the mating hole suitable with this fixed orifice on described installation underframe, described horizontal part is provided with mounting hole, described upper silicone gasket is arranged on the upper end of this mounting hole, described lower silicone gasket is arranged on the lower end of this mounting hole, described screw inserts in mounting hole, and run through successively described upper silicone gasket and lower silicone gasket, described nut revolves and is located on screw.
As a kind of improvement of the present utility model, described insulator foot is for bearing the insulating base frame of 110KV.
As a kind of improvement of the present utility model, between described high-voltage connection and high-voltage connection, use insulating bar temporary supporting.
As a kind of improvement of the present utility model, described installation underframe is arranged on automobile by vehicle-mounted erecting device, this vehicle-mounted erecting device is symmetricly set on the two side of described installation underframe, this vehicle-mounted erecting device comprises mount pad, upper silicone gasket, lower silicone gasket, screw and nut, described mount pad comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice, and be provided with the mating hole suitable with this fixed orifice on described installation underframe, described horizontal part is provided with mounting hole, described upper silicone gasket is arranged on the upper end of this mounting hole, described lower silicone gasket is arranged on the lower end of this mounting hole, described screw inserts in mounting hole, and run through successively described upper silicone gasket and lower silicone gasket, described nut revolves and is located on screw.
As a kind of improvement of the present utility model, described insulator foot is for bearing the insulating base frame of 110KV.
The beneficial effects of the utility model are: the reasonable in design of the 220KV vehicular magnetic double purpose transformer for line-frequency resonance test that the utility model provides, ingenious boosting becomes unit and two groups of the mutually stacked formation of ferroresonance transformer, and wherein one group be arranged on and on insulator foot, form cascaded structure, effective reduced volume, reduce shipping height, movability is strong, is easy to install onboard, easy to operate and use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vehicle-mounted erecting device structural representation in the utility model.
Fig. 3 is the wiring schematic diagram of the utility model when 55KV tests.
Fig. 4 is the wiring schematic diagram of the utility model when 110KV tests.
Fig. 5 is the fundamental diagram that magnetic resonance becomes.
Fig. 6 is that magnetic is adjusted sense schematic diagram.
Embodiment
Embodiment: referring to Fig. 1, the utility model embodiment provides a kind of novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test, it comprises 380V plug 1, power control 2, capacitive divider 4, insulator foot 7, two ferroresonance transformers 3 and four boost and become unit 5, two boost become unit by with a ferroresonance transformer 3 by order from top to bottom successively tandem stack, and be arranged on the center-left side position that underframe 7 is installed, another two boost become unit 5 by with another ferroresonance transformer 3 by order from top to bottom successively tandem stack, and by described insulator foot 9, be arranged on the center-right side position that underframe 7 is installed, described power control 2 is arranged on this installation underframe 7 one sides, and be connected with described ferroresonance transformer 3, described capacitive divider 4 is arranged on the opposite side that underframe 7 is installed, and this capacitive divider 4 with described in boost and become unit 5 and be connected with test product.
Described power control 2 comprises power controling box and the monitoring backstage being connected with this power controling box, and this power controling box is arranged on described installation underframe 7.
The two side symmetry of described installation underframe 7 is respectively provided with vehicle-mounted erecting device, this vehicle-mounted erecting device comprises mount pad, upper silicone gasket, lower silicone gasket, screw and nut, described mount pad comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice, and be provided with the mating hole suitable with this fixed orifice on described installation underframe 7, described horizontal part is provided with mounting hole, described upper silicone gasket is arranged on the upper end of this mounting hole, described lower silicone gasket is arranged on the lower end of this mounting hole, described screw inserts in mounting hole, and run through successively described upper silicone gasket and lower silicone gasket, described nut revolves and is located on screw.
As a kind of improvement of the present utility model, described insulator foot 9 is for bearing the insulating base frame of 110KV.
As a kind of improvement of the present utility model, during 55KV test, test current can be large 1 times.
220KV vehicular magnetic double purpose transformer for line-frequency resonance test stream time under rated current is 90min, and under 1.2 times of rated current, stream time is 10min.Effectively promote overload protection ability, and then reduce maintenance cost, guarantee the stability of work, greatly increase the service life.
As a kind of improvement of the present utility model, between described high-voltage connection and high-voltage connection, use insulating bar temporary supporting.Avoid breaking phenomena, guarantee normal operation.
As a kind of improvement of the present utility model, described installation underframe 7 is arranged on automobile by vehicle-mounted erecting device, this vehicle-mounted erecting device is symmetricly set on the two side of described installation underframe 7, this vehicle-mounted erecting device 8 comprises mount pad 81, upper silicone gasket 82, lower silicone gasket 83, screw 84 and nut 86, described mount pad 81 comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice 87, and be provided with the mating hole suitable with this fixed orifice 87 on described installation underframe, described horizontal part is provided with mounting hole 85, described upper silicone gasket 82 is arranged on the upper end of this mounting hole 85, described lower silicone gasket 83 is arranged on the lower end of this mounting hole 85, described screw 84 inserts in mounting hole 85, and run through successively described upper silicone gasket 82 and lower silicone gasket 83, described nut 86 revolves and is located on screw 84.
As a kind of improvement of the present utility model, described insulator foot 9 is for bearing the insulating base frame of 110KV.
Described installation underframe 7 is arranged on automobile by vehicle-mounted erecting device 8, this vehicle-mounted erecting device 8 is symmetricly set on the two side of described installation underframe, this vehicle-mounted erecting device 8 comprises mount pad 81, upper silicone gasket 82, lower silicone gasket 83, screw 84 and nut 86, described mount pad 81 comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice 87, and be provided with the mating hole suitable with this fixed orifice 87 on described installation underframe, described horizontal part is provided with mounting hole 85, described upper silicone gasket 82 is arranged on the upper end of this mounting hole 85, described lower silicone gasket 83 is arranged on the lower end of this mounting hole 85, described screw 84 inserts in mounting hole 85, and run through successively described upper silicone gasket 82 and lower silicone gasket 83, described nut 86 revolves and is located on screw 84.
During use, by the upper silicone gasket 82 in vehicle-mounted erecting device 8 and lower silicone gasket 83, can make to install underframe 7 and not carry out very stiff and demanding being connected with the vehicle-mounted bracket on car body, effectively irregular by what produce in car stroke, continuing vibrations effectively keeps apart with installation underframe 7, good stability, make to install the impact that underframe 7 is avoided high strength vibrations, efficiently solve underframe 7 is installed, power control 2, ferroresonance transformer 3, capacitive divider 4 and two boosts and becomes the reliable use of unit 5 in high strength vibrations vehicle operating process, greatly improve the adaptive capacity to environment of 220KV vehicular magnetic double purpose transformer for line-frequency resonance test, stability in use and serviceable life, the accuracy of warranty test.
The reasonable in design of the 220KV vehicular magnetic double purpose transformer for line-frequency resonance test that the utility model provides, ingenious boosting becomes unit 5 and two groups of the mutually stacked formation of ferroresonance transformer 3, and wherein one group be arranged on and on insulator foot 9, form cascaded structure, effective reduced volume, reduce shipping height, movability is strong, is easy to install onboard, easy to operate and use; Dexterously step-up transformer and REgulatable reactor are integrated simultaneously, on the basis of conventional test transformer, transformer core has been increased to DC magnetic biasing and controlled function, by the DC magnetic biasing to unshakable in one's determination, made the excitation impedance of transformer and the capacitive reactance of test product 6 realize parallel resonance.
Referring to Fig. 5, it is the fundamental diagram that magnetic resonance becomes.For common transformer, excitation impedance X
mvery large, exciting current I
mvery little, test current I
xpress basic mains side, the i.e. I of all flowing into of transformer voltage ratio
o≈ I
x(I
xconversion is to mains side).If change magnetic permeability unshakable in one's determination, X by DC magnetic biasing
mdecline, I
mincrease, work as I
m=-I
xtime, I
o≈ 0, is now that the excitation induction reactance of transformer equates with test product 6 capacitive reactances to form parallel resonance, and output power of power supply only has active power.Therefore in fact magnetic resonance change is exactly the adjustable testing transformer of a kind of excitation impedance.
Referring to Fig. 6, for magnetic is adjusted sense schematic diagram, by pressure regulator D and magnetic transformer high pressure winding W
2provide test product 6 required trial voltage, feedback transformer Tf and rectifier are by test current I
xafter converting by a certain percentage DC current to, inject field copper W
dgive DC magnetic biasing unshakable in one's determination, by adjusting the no-load voltage ratio control DC current size of feedback transformer, make AC excitation electric current and test current I
xequate, exchange perceptual exciting current and capacitive test current and offset only remaining active current of rear source current.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change and revise above-mentioned embodiment.As described in the utility model above-described embodiment, adopt the structure identical with it and other transformer of obtaining, all in the utility model protection domain.
Claims (4)
1. a novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test, it is characterized in that, it comprises 380V plug, power control, capacitive divider, insulator foot, two ferroresonance transformers and the four change unit that boosts, two boost become unit by with a ferroresonance transformer by order from top to bottom successively tandem stack, and be arranged on the center-left side position that underframe is installed, another two boost become unit by with another ferroresonance transformer by order from top to bottom successively tandem stack, and by described insulator foot, be arranged on the center-right side position that underframe is installed, described power control is arranged on this installation underframe one side, and be connected with described ferroresonance transformer, described capacitive divider is arranged on the opposite side that underframe is installed, and this capacitive divider with described in boost and become unit and be connected with test product.
2. novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test according to claim 1, it is characterized in that, described power control comprises power controling box and the monitoring backstage being connected with this power controling box, and this power controling box is arranged on described installation underframe.
3. novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test according to claim 1 and 2, it is characterized in that, the two side symmetry of described installation underframe is respectively provided with vehicle-mounted erecting device, this vehicle-mounted erecting device comprises mount pad, upper silicone gasket, lower silicone gasket, screw and nut, described mount pad comprise horizontal part and with the vertical component effect being vertically connected on this horizontal part, this vertical component effect is provided with fixed orifice, and be provided with the mating hole suitable with this fixed orifice on described installation underframe, described horizontal part is provided with mounting hole, described upper silicone gasket is arranged on the upper end of this mounting hole, described lower silicone gasket is arranged on the lower end of this mounting hole, described screw inserts in mounting hole, and run through successively described upper silicone gasket and lower silicone gasket, described nut revolves and is located on screw.
4. novel 220KV vehicular magnetic double purpose transformer for line-frequency resonance test according to claim 1, is characterized in that, described insulator foot is for bearing the insulating base frame of 110KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524669.1U CN203405543U (en) | 2013-08-27 | 2013-08-27 | Novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524669.1U CN203405543U (en) | 2013-08-27 | 2013-08-27 | Novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405543U true CN203405543U (en) | 2014-01-22 |
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ID=49941473
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320524669.1U Expired - Fee Related CN203405543U (en) | 2013-08-27 | 2013-08-27 | Novel 220 KV vehicle-mounted type magnetic power frequency resonance test transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422856A (en) * | 2013-08-23 | 2015-03-18 | 青岛菲特电器科技有限公司 | 220KV vehicle-mounted type magnetic power frequency resonance test transformer and working method thereof |
-
2013
- 2013-08-27 CN CN201320524669.1U patent/CN203405543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422856A (en) * | 2013-08-23 | 2015-03-18 | 青岛菲特电器科技有限公司 | 220KV vehicle-mounted type magnetic power frequency resonance test transformer and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |