CN210465668U - Vehicle-mounted GIS type meter source device - Google Patents
Vehicle-mounted GIS type meter source device Download PDFInfo
- Publication number
- CN210465668U CN210465668U CN201920863494.4U CN201920863494U CN210465668U CN 210465668 U CN210465668 U CN 210465668U CN 201920863494 U CN201920863494 U CN 201920863494U CN 210465668 U CN210465668 U CN 210465668U
- Authority
- CN
- China
- Prior art keywords
- booster
- shell
- gis
- winding
- windings
- 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.)
- Active
Links
- 238000004804 winding Methods 0.000 claims abstract description 132
- 239000003990 capacitor Substances 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 abstract description 21
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses an on-vehicle GIS formula table source device, be equipped with the sleeve pipe on its GIS shell, the equalizer ring is installed to sheathed tube tip, be equipped with the booster in the GIS shell, etalon and in-phase compensation unit, the booster, the etalon is located same air chamber, in-phase compensation unit includes in-phase compensation mutual-inductor and gate switch, the secondary winding of etalon and the primary winding of booster link to each other, a plurality of secondary windings of booster respectively have an orthogonal compensation unit in parallel, in-phase compensation mutual-inductor's primary winding and etalon coupling, a plurality of secondary windings link to each other with gate switch's input respectively, the public taking a percentage of a plurality of secondary windings of in-phase compensation mutual-inductor is respectively through a programmable relay, an orthogonal compensation unit links to each other with a secondary winding of booster. The utility model discloses standard voltage transformer's accuracy is high, and equipment volume and weight are little, and experimental wiring work load is low, is particularly suitable for the on-the-spot check-up work of voltage transformer.
Description
Technical Field
The utility model relates to a voltage transformer check-up equipment, concretely relates to on-vehicle GIS formula table source device can be used to voltage transformer check-up work.
Background
The voltage transformer is an important component of an electric energy metering device, converts high voltage into low voltage in proportion and transmits the low voltage to a secondary side electric energy metering device, a measuring instrument, a relay protection device and an automatic device, is a connection element of a primary system and a secondary system, and vividly speaking, the voltage transformer is the 'eye' of a power transmission system. Most of electric energy meters in the electric energy metering device carry out electric energy metering by collecting signals of a mutual inductor, so the accuracy of current and voltage conversion proportion of the mutual inductor directly determines the accuracy of electric energy metering. Meanwhile, the mutual inductor also plays a role in providing signals and isolating high voltage for instruments and relay protection. Therefore, the accuracy, reliability and stability of the transformer play a crucial role in the safe operation and marketing measurement of the whole power system, and therefore the transformer must be verified.
The JJG1021-2010 power transformer verification regulations specify test equipment, test methods and test periods of voltage transformers. The standard voltage transformer and the boosting power supply are key equipment for testing the voltage transformer. The boosting power supply is used for providing test voltage for the tested voltage transformer, and the standard voltage transformer is used for comparing errors with the tested voltage transformer. The error characteristic of the standard voltage transformer is directly related to the accuracy of measurement, so that the accuracy requirement and the stability requirement are high. The voltage grade of the standard voltage transformer corresponds to the voltage grade of primary equipment of an electric power system and is divided into 6kV, 10kV, 35kV, 110kV, 220kV, 500kV, 750kV, 1000kV and the like, the standard voltage transformer has high accuracy and generally comprises 0.05 grade, 0.02 grade, 0.01 grade, 0.005 grade, 0.002 grade and the like; the voltage transformers of 110kV, 220kV, 110kV and 35kV are common voltage levels at present, the probability of measuring the transformers of the three levels is very high, the standard voltage transformers of 220kV, 110kV and 35kV can be used for checking generally, so that a plurality of measuring devices are provided, the process of replacing the devices during testing is complex, the workload is high, some standard voltage transformers of 220kV can measure the voltage transformers of 110kV, but the measuring accuracy is not high, the size is large, and the weight is not light. The standard device and the boosting device of the voltage transformer with the 220kV voltage level are generally 2 meters, and vehicle-mounted verification is difficult to realize. Needs hoisting and carrying, has low working efficiency and poor safety factor.
To sum up, there are bulky, heavy, the high hoist and mount transport difficulty of high height in present standard voltage transformer and booster unit, are difficult to realize on-vehicle check-up, and standard voltage transformer is difficult to realize the problem of high accuracy under covering the multiple transformation ratio condition.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: to the above-mentioned problem of prior art, a vehicle-mounted GIS formula table source device is provided, the utility model discloses standard voltage transformer's accuracy is high, and equipment volume and weight are little, and experimental wiring work load is low, is particularly suitable for voltage transformer on-the-spot check-up work.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a vehicle-mounted GIS type meter source device, which comprises a GIS shell, wherein a sleeve is arranged on the GIS shell, a grading ring is arranged at the end part of the sleeve, a booster, a standard device and an in-phase compensation unit are arranged in the GIS shell, the booster and the standard device are positioned in the same air chamber, the in-phase compensation unit comprises an in-phase compensation mutual inductor and a gating switch, a secondary winding of the standard device is connected with a primary winding of the booster, a plurality of secondary windings of the booster are respectively connected in parallel with an orthogonal compensation unit, the primary winding P2 of the in-phase compensation mutual inductor is coupled with the standard device, the plurality of secondary windings are respectively connected with the input end of the gating switch, a common tap of the plurality of secondary windings of the in-phase compensation mutual inductor is respectively connected with a secondary winding of the booster through a program control relay REi and an orthogonal compensation unit, and high-voltage windings of the booster and the standard share the sleeve and lead out a high-voltage wire outlet point through the equalizing ring.
Optionally, a single-turn winding P1 is connected to the primary winding P2 of the in-phase compensation transformer, the single-turn winding P1 and the primary winding P2 are connected in parallel and form a loop, and the single-turn winding P1 is wound on the iron core of the standard.
Optionally, the secondary winding P3 of the in-phase compensation transformer is provided with a plurality of taps d1 to dn, the plurality of taps d1 to dn are respectively connected with the input end of the gating switch, and the last tap dn is used as a common tap and is respectively connected with a secondary winding of the booster through a programmable relay REi and a quadrature compensation unit.
Optionally, the gating Switch is a programmed multi-item selection Switch.
Optionally, the quadrature compensation unit is formed by connecting a programmable relay rei and a programmable adjustable inductance-capacitance aliasing impedance module Zbi in series, and a branch formed by the series connection is connected in parallel with the corresponding secondary winding.
Optionally, the programmable adjustable lc aliasing impedance module is formed by two branches connected in parallel, one branch is formed by connecting an adjustable inductor and an inductor switch s5 in series, the other branch includes a discharge resistor R and a plurality of fixed capacitor bank branches arranged in parallel with the discharge resistor R, and the fixed capacitor bank branches are formed by a capacitor Ci and a capacitor switch si arranged in series.
Optionally, the GIS housing is composed of a booster housing mounted in the booster housing and a etalon housing mounted in the etalon housing directly above the booster housing, the booster housing and the etalon housing being vertically connected as a single body with the internal cavities communicating with each other, the sleeve being coaxially connected to one side of the etalon housing by a flange, the sleeve being perpendicular to an axis of the booster housing.
Optionally, a first terminal box is mounted on the booster housing, the primary winding of the booster includes input windings S1-S2, compensation windings S5-S6 and monitor windings S7-S8, and the first terminal box has connection terminals for the input windings S1-S2, the compensation windings S5-S6 and the monitor windings S7-S8 and the output winding ground S4.
Optionally, a second connection terminal box is mounted on the standard housing, and a connection terminal of the primary winding grounding end X1 and a connection terminal of each secondary winding tap of the standard are arranged in the second connection terminal box.
Optionally, a plurality of lifting lugs are arranged on the GIS housing.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses with the design of booster and etalon altogether, air chamber and sleeve pipe of sharing have reduced test equipment volume and weight, have reduced the wiring work load, are particularly suitable for the on-the-spot check-up work of voltage transformer.
2. The utility model discloses an accuracy of standard voltage transformer under the wide range has been ensured to cophase compensation unit and quadrature compensation unit.
3. The utility model discloses a etalon has a plurality of secondary windings, and cophase compensation mutual-inductor has a plurality of secondary windings, adopts the multiple transformation ratio design, has further ensured standard voltage transformer's accuracy under the 220kV ~35kV wide range.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Fig. 2 is an electrical schematic diagram of an apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an orthogonal compensation unit according to an embodiment of the present invention.
Illustration of the drawings: 1. a GIS housing; 11. a booster housing; 111. a first connection terminal box; 12. a standard housing; 121. a second connection terminal box; 13. lifting lugs; 2. a sleeve; 3. a grading ring; 4. a voltage booster; 5. a standard device; 51. an iron core; 6. an in-phase compensation unit; 61. an in-phase compensation transformer; 62. a gating switch; 7. an orthogonal compensation unit; 71. an adjustable inductance.
Detailed Description
The following will use 220kV ~35 kV's on-vehicle GIS formula table source device as an example, right the utility model discloses on-vehicle GIS formula table source device carries out further detailed description.
As shown in fig. 1 and 2, the vehicle-mounted GIS-type meter source device of the present embodiment includes a GIS housing 1, a sleeve 2 is provided on the GIS housing 1, a grading ring 3 is installed at an end of the sleeve 2, a booster 4, a standard 5 and an in-phase compensation unit 6 are provided in the GIS housing 1, the booster 4 and the standard 5 are located in the same air chamber, the in-phase compensation unit 6 includes an in-phase compensation transformer 61 and a gate switch 62, a secondary winding of the standard 5 is connected to a primary winding of the booster 4, a plurality of secondary windings of the booster 4 are respectively connected in parallel to a quadrature compensation unit 7, the primary winding P2 of the in-phase compensation transformer 61 is coupled to the standard 5, the plurality of secondary windings are respectively connected to an input terminal of the gate switch 62, and a common one of the plurality of secondary windingsThe head is connected with a secondary winding of the booster 4 through a programmable relay REi and a quadrature compensation unit 7 respectively, and high-voltage windings of the booster 4 and the standard 5 share the sleeve 2 and lead out a high-voltage wire outlet point through the equalizing ring 3. In the present embodiment, the booster 4 and the etalon 5 are designed as a single body, and share one gas chamber (the gas chamber of the GIS housing 1, the inside of which is filled with SF)6Gas) and the sleeve 2, the volume and the weight of the test equipment are reduced, the wiring workload is reduced, and the device is particularly suitable for the field calibration work of the voltage transformer. According to the embodiment, the accuracy of the standard voltage transformer in a wide range of 220kV to 35kV is guaranteed through the in-phase compensation unit 6 and the quadrature compensation unit 7. The standard device 5 of the embodiment is provided with a plurality of secondary windings, the in-phase compensation transformer 61 is provided with a plurality of secondary windings, and the accuracy of the standard voltage transformer in the wide range of 220kV to 35kV is further guaranteed by adopting a multi-transformation ratio design.
As shown in fig. 1 and 2, the GIS housing 1 is composed of a booster housing 11 and a etalon housing 12, the booster 4 is installed in the booster housing 11, the etalon 5 is installed in the etalon housing 12, the etalon housing 12 is positioned right above the booster housing 11, the booster housing 11 and the etalon housing 12 are vertically connected into a whole and the internal cavities are communicated with each other, the sleeve 2 is coaxially connected with one side of the etalon housing 12 through a flange, the sleeve 2 is perpendicular to the axis of the booster housing 11, and by the above structure, the volume of the device is effectively reduced, so that the total height of the device is 1.1m, which is reduced by 50% compared with the prior art.
As shown in fig. 1 and 2, the booster housing 11 is mounted with a first connection terminal box 111, the primary winding of the booster 4 includes input windings S1-S2, compensation windings S5-S6 and monitor windings S7-S8, and the first connection terminal box 111 is provided with connection terminals for the input windings S1-S2, the compensation windings S5-S6 and the monitor windings S7-S8 and the output winding ground terminal S4. The monitoring windings S7-S8 can also be used for voltage withstand test voltage monitoring of the instrument transformer.
As shown in fig. 1, a second terminal block 121 is attached to the etalon housing 12, and the second terminal block 121 is provided with a connection terminal of the primary winding ground terminal X1 and connection terminals of the respective secondary winding taps of the etalon 5. The true bookIn the embodiment, the second connection terminal box 121 is further provided with an air pressure gauge for detecting the air pressure of the air chamber in which the booster 4 and the standard 5 are located. In this embodiment, the air chamber in which the booster 4 and the standard 5 are located is filled with SF of 0.4MPa6A gas.
As shown in fig. 1, the GIS housing 1 is provided with 4 lifting lugs 13, which facilitates the lifting and moving of the device of the present embodiment.
The sleeve 2 is used for leading out high voltage; in the present embodiment, the sleeve 2 is disposed horizontally, and is coaxially connected to the side of the etalon housing 12 via a flange, and the sleeve 2 is perpendicular to the axis of the booster housing 11. The grading ring 3 is used for grading a high-voltage electric field of a high-voltage wire outlet point. In this embodiment, the grading ring 3 is detachably mounted at the tail end of the sleeve 2. The high-voltage outlet points of the high-voltage windings of the booster 4 and the standard 5 are the same, so that the high-voltage outlet points can be led out through the equalizing ring 3 by sharing one sleeve 2. The equalizing ring 3 is arranged on the sleeve 2 and is used for reducing the electric field of the uniform high-voltage outlet point. Since the sleeve 2 is common, only one grading ring 3 is also required.
In this embodiment, the coils (including the primary winding and the secondary winding) of the booster 4 are uniformly wound around the iron core, and the winding directions of the coils are all parallel to the ground, so that landslide can be effectively prevented. The iron core of the booster 4 is fixed to the bottom of the booster housing through a clamp, and the iron core is fixed to the ground in a vertical direction. Referring to FIG. 2, the booster 4 includes a primary winding A1-X1 having N1 turns; the booster 4 comprises a secondary winding a1-x1, comprises two taps b1 and c1, and forms three low-voltage windings a1-x1, b1-x1 and c1-x1, and x1 is a zero potential terminal. Referring to fig. 2, the primary winding terminal a1 (high-voltage terminal) of the standard 5 is connected to the secondary winding terminal S3 (high-voltage terminal) of the booster 4, the primary winding terminal X1 (low-voltage terminal) of the standard 5 is grounded, and the secondary winding terminal S4 (low-voltage terminal) of the booster 4 is grounded.
In this embodiment, the standard 5 is a standard voltage transformer, the coil (including the primary winding and the secondary winding) of the standard 5 is uniformly wound on the iron core 51, and the winding direction of the coil is parallel to the ground, so that landslide can be effectively prevented. The core 51 is fixed to one side of the etalon housing 12 by a clamp, the core being fixed to the ground in a horizontal direction.
In this embodiment, the in-phase compensation unit 6 is used to implement in-phase compensation. As shown in fig. 2, the primary winding P2 of the in-phase compensation transformer 61 is connected with the single-turn winding P1, the single-turn winding P1 and the primary winding P2 are connected in parallel to form a loop, and the single-turn winding P1 is wound on the iron core 51 of the standard 5. The primary winding P2 and the secondary winding P3 of the in-phase compensation transformer 61 are uniformly wound on the iron core of the in-phase compensation transformer 61, and electromagnetic coupling is established.
As shown in fig. 2, the secondary winding P3 of the in-phase compensation transformer 61 is provided with a plurality of taps d1 to dn, the plurality of taps d1 to dn are connected to the input terminal of the gate switch 62, respectively, and the last tap dn is connected as a common tap to a secondary winding of the booster 4 through a programmable relay REi and a quadrature compensation unit 7, respectively. Referring to fig. 2, the booster 4 in this embodiment includes 3 secondary windings, so that the last tap dn is connected as a common tap to the first secondary winding of the booster 4 through a programmable relay RE1 and the first quadrature compensation unit 7, to the second secondary winding of the booster 4 through a programmable relay RE2 and the second quadrature compensation unit 7, and to the third secondary winding of the booster 4 through a programmable relay RE3 and the third quadrature compensation unit 7. On the basis of this structure, the above structure can be adaptively adjusted according to the number of secondary windings included in the booster 4.
As shown in fig. 2, the gate Switch 62 is a programmable multi-item selection Switch. The input end of the program-controlled multi-item selector Switch is connected with a plurality of taps of the D1-dn winding, the output end of the program-controlled multi-item selector Switch is connected with the output end D1 of the whole device, and the program-controlled multi-item selector Switch is used for adjusting the switching-on and switching-off state of the internal relay through an electric control command, so that the same-direction component orderly compensation is realized, and the output accuracy of the standard voltage transformer is improved.
In the embodiment, the voltage D1-dn of the program-controlled multi-option selector Switch can be respectively connected with the low-voltage windings a1-x1, b1-x1 and c1-x1 in series along with the program-controlled relays RE1, RE2 and RE3 to form the self-adaptive low-voltage windings D1-a1-x1, D1-b1-x1 and D1-c1-x1 after in-phase compensation. Wherein D1-a1-x1 is a low-voltage winding with a transformation ratio of (220kV/√ 3)/(100/√ 3V) at rated voltage, D1-b1-x1 is a low-voltage winding with a transformation ratio of (110kV/√ 3)/(100/√ 3V), and D1-c1-x1 is a low-voltage winding with a transformation ratio of (35kV/√ 3)/(100/√ 3V) and 35 kV/100V. The programmable relays RE1, RE2 and RE3 play a role in selecting the test transformation ratio. The compensated low-voltage windings D1-D1-x1, D1-b1-x1 and D1-c1-x1 are formed by connecting a programmable multi-item selector Switch, programmable relays RE1, RE2, RE3 and D1-dn in series with the low-voltage windings a1-x1, b1-x1 and c1-x1, so that the compensation of the low-voltage windings is realized. D1-D1-x1 is a low-voltage winding with a transformation ratio of (220kV/√ 3)/(100/√ 3V), D1-b1-x1 is a low-voltage winding with a transformation ratio of (110kV/√ 3)/(100/√ 3V), and D1-c1-x1 is a low-voltage winding with a transformation ratio of (35kV/√ 3)/(100/√ 3V) and 35 kV/100V. The ratio error accuracy under three transformation ratios of the standard voltage transformer is guaranteed. The primary winding P2, the secondary winding P3 and the iron core form a small transformer, the voltage ratio of the small transformer is N2/N3, and the self-adaptive in-phase compensation unit realizes 1/(N2/N3) turn compensation. Where N2 is the number of turns in the primary winding P2 and N3 is the total number of turns in the secondary winding P3.
The orthogonal compensation unit 7 is used for changing the angular difference of the output of the standard voltage transformer by adjusting the power factor of the secondary impedance of the low-voltage winding. In this embodiment, the quadrature compensation unit 7 is formed by connecting the programmable relay rei and the programmable adjustable lc aliasing impedance module Zbi in series, and a branch formed by the series connection is connected in parallel with the corresponding secondary winding. Referring to fig. 2, the first quadrature compensation unit 7 is formed by connecting a programmable relay re1 and a programmable adjustable lc aliasing impedance module Zb2 in series, the second quadrature compensation unit 7 is formed by connecting a programmable relay re2 and a programmable adjustable lc aliasing impedance module Zb2 in series, and the third quadrature compensation unit 7 is formed by connecting a programmable relay re3 and a programmable adjustable lc aliasing impedance module Zb3 in series. The programmable relays re1, re2 and re3 are respectively connected in series with the programmable adjustable LC aliasing impedance modules Zb1, Zb2 and Zb3 to control the switching of the programmable adjustable LC aliasing impedance modules Zb1, Zb2 and Zb 3. RE1 and RE1, RE2 and RE2, and RE3 and RE3 form synchronous switching relations. For example, RE1 is also in the closed state when RE1 is closed; when RE1 is in disjunction, RE1 is also in disjunction state; re2 and re3 are the same.
As shown in fig. 3, the programmable adjustable lc-alias impedance module is composed of two branches connected in parallel, one of the branches is composed of an adjustable inductor 71 and an inductor switch s5 connected in series, the other branch includes a discharge resistor R and a plurality of fixed capacitor bank branches arranged in parallel with the discharge resistor R, and the fixed capacitor bank branches are composed of a capacitor Ci and a capacitor switch si arranged in series. Referring to fig. 3, the total of four fixed capacitor bank branches is included, the 1 st fixed capacitor bank branch is formed by a capacitor C1 and a capacitor switch s1 which are arranged in series, the 2 nd fixed capacitor bank branch is formed by a capacitor C2 and a capacitor switch s2 which are arranged in series, the 3 rd fixed capacitor bank branch is formed by a capacitor C3 and a capacitor switch s4 which are arranged in series, and the 4 th fixed capacitor bank branch is formed by a capacitor C4 and a capacitor switch s4 which are arranged in series. The adjustable inductor 71 has a program-controlled continuous adjustable function and is connected with the branch of the fixed capacitor bank in parallel; the fixed capacitor bank branch is formed by connecting a plurality of equivalent capacitors (capacitors Ci) in parallel, a capacitor switch si is connected with the capacitors Ci in series, and the capacitors are switched according to instructions; the cut capacitor is connected with the discharge resistor in parallel to release the residual charge. The program-controlled adjustable inductance-capacitance aliasing impedance module is used for adjusting an internal impedance value according to an electric control instruction, realizing sequential compensation of orthogonal components and improving the output accuracy of the standard voltage transformer. The adjustable inductor has a program-controlled continuous adjustable function and is connected with the fixed capacitor bank in parallel; the fixed capacitor group is formed by connecting a plurality of equivalent capacitors in parallel, a capacitance switch is connected with each capacitor in series, and the capacitors are switched according to instructions; the cut capacitor is connected with the discharge resistor in parallel to release the residual charge. The program-controlled adjustable inductance-capacitance aliasing impedance module adjusts an internal impedance value according to an electric control instruction, so that ordered compensation of orthogonal components is realized, and the output accuracy of the 3-transformation-ratio standard voltage transformer is improved. For example, when the programmable adjustable inductance-capacitance aliasing impedance module displays the capacitance, the switch s5 of the electrically adjustable inductor is in an open state, the capacitances of C1-C4 are different, and the closed state of the corresponding switch s1-s4 is determined according to the compensation magnitude of the orthogonal component; when the program-controlled adjustable inductance-capacitance aliasing impedance module displays the inductance, the s1-s4 switch is in an open state, the s5 is in a closed state, and the electrically-adjusted inductor adjusts the inductance value according to the compensation size of the orthogonal component.
The working steps of the vehicle-mounted GIS type meter source device of the embodiment are as follows: the current is transmitted from the input windings S1-S2 through the booster coil, the high voltage U is output from S3-S4, is applied to the primary windings A-X of the standard device 5, is transmitted through the coil of the standard device 5, and is output from the D1-a1-X1 winding: u/(220kV/√ 3)/(100/√ 3V); the output from the winding D1-b1-x1 is: u/(110kV/√ 3)/(100/√ 3V); and the output from the winding D1-c1-x1 is as follows: u/(35 kV/√ 3)/(100/√ 3V)).
In conclusion, the vehicle-mounted GIS type meter source device solves the problems that the conventional standard voltage transformer and the boosting device are large in size, heavy in weight, high in height, difficult to hoist and carry and difficult to realize vehicle-mounted calibration, and the standard voltage transformer is difficult to realize high precision under the condition of covering multiple transformation ratios, and creates a 220 kV-35 kV vehicle-mounted GIS type meter source integrated device with a self-adaptive compensation unit. The vehicle-mounted GIS type meter source device of the embodiment has the following advantages: (1) the present embodiment adopts the iron core of the standard 5 and the booster 4 to be installed vertically in a staggered manner, so that the spatial distance is fixed, the coil distance between the booster 4 and the standard 5 is the farthest, the interference of the booster 4 to the standard 5 is reduced, and the accuracy and the stability of the standard 5 are improved. (2) The embodiment adopts a multi-transformation ratio design, and combines the in-phase compensation unit 6 and the quadrature compensation unit 7, so that the accuracy of the standard voltage transformer under the wide range of 220kV to 35kV is guaranteed. (3) According to the embodiment, the sleeve 2 is transversely arranged on one side of the shell of the standard device 5, so that the height of the standard device is reduced by 50%, and the vehicle-mounted verification of the 220 kV-35 kV voltage transformer is realized. (4) The embodiment designs the standard device 5 and the booster 4 together, shares one air chamber and the sleeve 2, reduces the volume and the weight of the test equipment, and reduces the wiring workload.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a source device is shown to on-vehicle GIS formula which characterized in that: the transformer comprises a GIS shell (1), wherein a sleeve (2) is arranged on the GIS shell (1), a voltage equalizing ring (3) is installed at the end part of the sleeve (2), a booster (4), a standard device (5) and an in-phase compensation unit (6) are arranged in the GIS shell (1), the booster (4) and the standard device (5) are located in the same air chamber, the in-phase compensation unit (6) comprises an in-phase compensation mutual inductor (61) and a gating switch (62), a secondary winding of the standard device (5) is connected with a primary winding of the booster (4), a plurality of secondary windings of the booster (4) are respectively connected with an orthogonal compensation unit (7) in parallel, a primary winding P2 of the in-phase compensation mutual inductor (61) is coupled with the standard device (5), a plurality of secondary windings are respectively connected with the input end of the gating switch (62), and common taps of the plurality of secondary windings of the in-phase compensation mutual inductor (61) are respectively connected with a program control relay REi, An orthogonal compensation unit (7) is connected with a secondary winding of the booster (4), and high-voltage windings of the booster (4) and the standard device (5) share the sleeve (2) and lead out high-voltage wire outlet points through the equalizing ring (3).
2. The on-vehicle GIS-style meter source device of claim 1, wherein: the primary winding P2 of the in-phase compensation transformer (61) is connected with a single-turn winding P1, the single-turn winding P1 and the primary winding P2 are connected in parallel to form a loop, and the single-turn winding P1 is wound on an iron core (51) of the standard device (5).
3. The on-vehicle GIS-style meter source device of claim 1, wherein: the secondary winding P3 of the in-phase compensation transformer (61) is provided with a plurality of taps d1-dn, the taps d1-dn are respectively connected with the input end of the gating switch (62), and the last tap dn is used as a common tap and is respectively connected with a secondary winding of the booster (4) through a programmable relay REi and a quadrature compensation unit (7).
4. The on-vehicle GIS-style meter source device of claim 1, wherein: the gating Switch (62) is a programmable multi-item selection Switch.
5. The on-vehicle GIS-style meter source device of claim 1, wherein: the quadrature compensation unit (7) is formed by connecting a programmable relay rei and a programmable adjustable inductance-capacitance aliasing impedance module Zbi in series, and a branch formed by the series connection is connected with a corresponding secondary winding in parallel.
6. The on-vehicle GIS-style meter source device of claim 5, wherein: the program-controlled adjustable inductance-capacitance aliasing impedance module is composed of two branches connected in parallel, wherein one branch is composed of an adjustable inductor (71) and an inductor switch s5 which are connected in series, the other branch comprises a discharge resistor R and a plurality of fixed capacitor bank branches which are arranged in parallel with the discharge resistor R, and the fixed capacitor bank branches are composed of a capacitor Ci and a capacitor switch si which are arranged in series.
7. The on-vehicle GIS-style meter source device of claim 1, wherein: the GIS shell (1) is composed of a booster shell (11) and a standard device shell (12), the booster (4) is installed in the booster shell (11), the standard device (5) is installed in the standard device shell (12), the standard device shell (12) is located right above the booster shell (11), the booster shell (11) and the standard device shell (12) are vertically connected into a whole, internal cavities of the booster shell and the standard device shell are communicated with each other, the sleeve (2) is coaxially connected with one side of the standard device shell (12) through a flange, and the sleeve (2) is perpendicular to the axis of the booster shell (11).
8. The on-vehicle GIS-style meter source device of claim 7, wherein: a first wiring terminal box (111) is mounted on the booster shell (11), the primary winding of the booster (4) comprises input windings S1-S2, compensation windings S5-S6 and monitoring windings S7-S8, and connecting terminals of the input windings S1-S2, the compensation windings S5-S6, the monitoring windings S7-S8 and an output winding grounding terminal S4 are arranged in the first wiring terminal box (111).
9. The on-vehicle GIS-style meter source device of claim 7, wherein: and a second connection terminal box (121) is mounted on the standard device shell (12), and a connection terminal of a primary winding grounding end X1 of the standard device (5) and connection terminals of secondary winding taps are arranged in the second connection terminal box (121).
10. The vehicle-mounted GIS type meter source device according to any one of claims 1 to 9, characterized in that: and a plurality of lifting lugs (13) are arranged on the GIS shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863494.4U CN210465668U (en) | 2019-06-10 | 2019-06-10 | Vehicle-mounted GIS type meter source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863494.4U CN210465668U (en) | 2019-06-10 | 2019-06-10 | Vehicle-mounted GIS type meter source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210465668U true CN210465668U (en) | 2020-05-05 |
Family
ID=70440020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863494.4U Active CN210465668U (en) | 2019-06-10 | 2019-06-10 | Vehicle-mounted GIS type meter source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210465668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261808A (en) * | 2019-06-10 | 2019-09-20 | 国网湖南省电力有限公司 | A kind of vehicle-mounted GIS formula table source device |
-
2019
- 2019-06-10 CN CN201920863494.4U patent/CN210465668U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261808A (en) * | 2019-06-10 | 2019-09-20 | 国网湖南省电力有限公司 | A kind of vehicle-mounted GIS formula table source device |
| CN110261808B (en) * | 2019-06-10 | 2024-04-16 | 国网湖南省电力有限公司 | Vehicle-mounted GIS type meter source device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105044479B (en) | Large Oil immersion transformer is empty, loads test complex and method | |
| CN206057431U (en) | A kind of converter power transformer load loss and short-circuit impedance pilot system | |
| CN204269765U (en) | A kind of transformer for power frequency withstand test and test unit | |
| CN202110270U (en) | Integrated standard device for on-site inspection of super/ extra high voltage constant-voltage transformer (CVT) | |
| CN201319064Y (en) | Test circuit for field accuracy detection of high-voltage current transformer | |
| CN102253257A (en) | Integrated standard device for field calibration of extra/ultra high voltage capacitor voltage transformer (CVT) | |
| CN204422710U (en) | A kind of oil-immersed type testing transformer | |
| CN109856586A (en) | A kind of current lifting device and preparation method thereof and the method for inspection | |
| WO2021000670A1 (en) | Method for preparing two-stage standard current transformer capable of implementing any change | |
| CN210465668U (en) | Vehicle-mounted GIS type meter source device | |
| CN110261808B (en) | Vehicle-mounted GIS type meter source device | |
| CN101770855B (en) | Electronic combined transformer for digitalized power station | |
| CN103035393A (en) | Electromagnetic unit and capacitor voltage transformer including electromagnetic unit | |
| CN104237835A (en) | Wiring detection device for straight-through current transformer | |
| CN102682985A (en) | High-voltage electronic type voltage transformer | |
| CN104076314B (en) | A kind of vehicular 1000kV voltage transformer (VT) calibration equipment | |
| CN102945739B (en) | Power-frequency single-phase resonant transformer for calibration and boosting of voltage transformer | |
| CN206945943U (en) | Voltage transformer verifies platform in GIS | |
| CN202601407U (en) | High-voltage electronic type voltage transformer | |
| CN209200942U (en) | A kind of simple charge power supply of three-phase and four-line combination transformer | |
| CN204515031U (en) | Large Oil immersion transformer is empty, load test complex | |
| CN204065390U (en) | A kind of vehicular 1000kV voltage transformer (VT) calibration equipment | |
| CN208796793U (en) | A kind of positive and negative coiling mutual inductor | |
| CN106501750A (en) | A kind of voltage transformer site error detects secondary wiring device | |
| CN103295753B (en) | Large-span high-precision composite-transformacurrenttio currenttio transformer and manufacture method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |