CN105869831A - 36000A strong current generator and detecting method thereof - Google Patents
36000A strong current generator and detecting method thereof Download PDFInfo
- Publication number
- CN105869831A CN105869831A CN201610362633.6A CN201610362633A CN105869831A CN 105869831 A CN105869831 A CN 105869831A CN 201610362633 A CN201610362633 A CN 201610362633A CN 105869831 A CN105869831 A CN 105869831A
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- strong current
- current generator
- copper pipe
- winding
- copper
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- 238000000034 method Methods 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000010949 copper Substances 0.000 claims abstract description 56
- 229910052802 copper Inorganic materials 0.000 claims abstract description 56
- 238000004804 winding Methods 0.000 claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 4
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 12
- 230000010354 integration Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
- G01R35/007—Standards or reference devices, e.g. voltage or resistance standards, "golden references"
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Abstract
The invention discloses a 36000A strong current generator. The 36000A strong current generator is characterized by comprising an annular iron core, a primary winding, a strong current guide line, a copper pipe and a plurality of connecting copper bars, wherein the primary winding is uniformly wound on the annular iron core; the strong current guide line is uniformly wound on the outmost layer of the primary winding; the copper pipe penetrates through a window of the annular iron core; one end of the copper pipe is connected with one end of the strong current guide line, and the other end of the copper pipe is connected with the connecting copper bars to form a circuit, so that a secondary winding is formed. According to the 36000A strong current generator and a detecting method of the 36000A strong current generator, disclosed by the invention, the problems of heavy weight, complicated wiring and large testing labor intensity of the strong current guide line and generation of larger noise due to vibration of the strong current guide line during a test are solved; through the arrangement of the copper pipe and the copper bars, the wiring is simple, the operation is convenient, the experimental noise is low, the integration degree is high, more safety and reliability are realized, the manpower is reduced, and the field testing time is greatly saved; the 36000A strong current generator and a detecting method of the 36000A strong current generator are successfully applied to a laboratory.
Description
Technical field
The present invention relates to a kind of strong current generator, be specifically related to a kind of 36000A strong current generator, for the laboratory error checking of 30000A great current mutual inductor.Belong to current transformer error technical field of measurement and test.
Background technology
30000A current transformer is widely used generating department at present, and generator outlet great current mutual inductor electric current is generally 15000A to 30000A.When 30000A large-current electric current transformer is carried out error test, Primary Conductor need to be by the big electric current of 36000A, many big ampere wires are used to serve as Primary Conductor during up-flow, Primary Conductor needs guiding through current lifting device, standard current transformer, tested current transformer, big ampere wires Heavy Weight, wiring is complicated, and experiment labor intensity is big, and during test, the vibration of big ampere wires can produce bigger noise.
The ampere-turn methods such as the most domestic calibrating to 30000A current transformer uses, using multiply secondary conductor punching Deng ampere-turn method, make the electric current flowing through every circle conductor diminish, produced magnetic field and electric power also reduce, impact on actual error measure also reduces, and does not meets actual field situation.After the secondary conductor number of turn increases, magnetic coupling degree uprises, and error information result itself is preferable, it is impossible to replace calibrating originally.Being reduced by the electric current flow through on secondary conductor Deng ampere-turn method, kelvin effect is few, easily realizes, it is impossible to preferably investigated the problem itself embodied under the error of transformer itself, and big current conditions.
Summary of the invention
For solving problem above present in prior art, the present invention proposes a kind of simple and reasonable, it is simple to the 36000A strong current generator that transport and laboratory are installed.
Technical scheme is as follows: a kind of 36000A strong current generator, it is characterized in that, including annular core, winding, big ampere wires, copper pipe and some connection copper bars, one time winding is uniformly wound on annular core, big ampere wires is uniformly wound on a winding on outermost layer, copper pipe is through the window of annular core, one end of copper pipe is connected with one end of big ampere wires, the other end of copper pipe connects formation loop by connecting copper bar, constitute Secondary Winding, strong current generator maximum can rise and flow to 36000A, copper pipe is used to save material, improve the utilization rate of material, reduce the impact that Kelvin effect is brought.
Further, described annular core uses the iron core that 4 ~ 8 model specifications are identical, and a winding parallel is on different annular cores.The method can reduce uses line amount, to reduce conductor resistance, makes the electric current flow through on each iron core reduce.
Further, described big ampere wires is made up of multiply soft copper silk, and described big ampere wires sub-thread cross-sectional area is less, and number of share of stock is more, is uniformly dispersed, and described big ampere wires cross-sectional area is 100 mm2~200mm2, making kelvin effect reduce, allow current to enough evenly flow through, magnetic coupling degree increases, and effectively reduces heat loss.
Further, described big ampere wires uniform winding is on the outermost layer of winding of annular core, and per share punching 2 ~ 6 circle, this distribution mode is uniform, compact conformation, it is to avoid miscellaneous operation of field connection.
Further, after described Secondary Winding passes annular core window with copper pipe, core window tight, effectively reduce leakage field, improve up-flow efficiency.
Further, a described winding uses enamel covered wire material, and is provided with 2 taps.
Further, the temperature sensor of many groups and alarm it is provided with on described annular core and a winding, monitor the temperature of each iron core in real time, when temperature rise is more than 65 degree, or temperature is more than 80 degree, all can report to the police and inform test operation personnel, and this warning temperature rise and alarm temperature can be arranged according to practical situation.
Further, described copper pipe is hollow, is provided with cold water in described copper pipe, and external water pump pressurizes, and makes circulating chilled water, by the transmission of heat, can preferably dispel the heat.
Further, the output interface of strong current generator is provided with a current sensing means.Effect is electric current early warning, informs that the system of worker has started to work the size of current of monitoring output in real time.
Further, the shell of described strong current generator is provided with soft protective layer, and described protective layer is made up of silicone rubber, prevents plant equipment when on-the-spot test or censorship from it is caused accidental injury, effectively reduces the impulsive force of shock.
Further, the elevator lifted it is configured with bottom strong current generator.It is characterized in that, make strong current generator, the height lifting of standard current transformer part, coordinate the window height of tested current transformer, enable tested current transformer preferably by copper pipe punching.
The calibration method of a kind of 36000A strong current generator, is characterized in that, comprise the following steps:
Step one: one end of the big ampere wires of multiply is connected with one end of copper pipe, and the other end of big ampere wires is connected with copper bar；
Step 2: copper pipe sequentially passes through the window of standard current transformer and tested current transformer；
Step 3: copper bar is connected with the other end of copper pipe, according to ct calibrating secondary connection principle, respectively the secondary terminals of standard current transformer, tested current transformer is connected with mutual-inductor tester, load box, carries out tested detecting current transformer according to ct calibrating code.
The beneficial effect that the present invention is reached: use traditional mode to need to use 6 24V/5000A current lifting device parallel connections to realize, because there is influencing each other of magnetic field between current lifting device after parallel connection, energy can be lossy, ordinary test can use more than 8 current lifting devices to realize, every about 600kg, total volume is big, Heavy Weight, very labor intensive material resources.36000A strong current generator of the present invention, volume is little, gross weight 960kg, and output voltage 24V, output electric current are maximum up to 36000A, and energy density is big.
A kind of 36000A strong current generator of the present invention and calibration method thereof solve big ampere wires Heavy Weight, wiring is complicated, experiment labor intensity is big, and the problem that during test, the vibration of big ampere wires can produce bigger noise, by copper pipe and the setting of copper bar, wiring is simple, simple operation, test noise is little, integrated level is high, more safe and reliable, decrease manpower, being greatly saved on-the-spot test period, the present invention has been successfully applied to laboratory.
Detailed description of the invention
Below according to accompanying drawing, the invention will be further described.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
A kind of 36000A strong current generator, it is characterized in that, including annular core, winding, big ampere wires, copper pipe and some connection copper bars, one time winding is uniformly wound on annular core, big ampere wires is uniformly wound on a winding on outermost layer, copper pipe is through the window of annular core, one end of copper pipe is connected with one end of big ampere wires, the other end of copper pipe connects formation loop by connecting copper bar, constitute Secondary Winding, strong current generator maximum can rise and flow to 36000A, described big ampere wires is made up of multiply soft copper silk, described big ampere wires cross-sectional area is 200mm2.Use copper pipe to save material, improve the utilization rate of material, reduce the impact that Kelvin effect is brought, described big ampere wires uniform winding on the outermost layer of winding of annular core, per share punching 2 circle, this distribution mode is uniform, compact conformation, it is to avoid miscellaneous operation of field connection.
After described Secondary Winding passes annular core window with copper pipe, the basic tight of core window, effectively reduce leakage field, improve up-flow efficiency, a described winding uses enamel covered wire material, and is provided with 2 taps.
As it is shown in figure 1, the calibration method of a kind of 36000A strong current generator, it is characterized in that, comprise the following steps:
Step one: one end of the big ampere wires of multiply is connected with one end of copper pipe 3, and the other end of big ampere wires is connected with copper bar；
Step 2: copper pipe 3 sequentially passes through the window of standard current transformer 5 and 36000A strong current generator 2, and described 36000A strong current generator 2, standard current transformer 5 are arranged at above hoistable platform 4, and described hoistable platform 4 connects bracing frame 1；
Step 3: copper bar is connected with the other end of copper pipe, according to ct calibrating secondary connection principle, respectively the secondary terminals of standard current transformer, tested current transformer is connected with mutual-inductor tester, load box, carries out tested detecting current transformer according to ct calibrating code.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (10)
1. a 36000A strong current generator, it is characterized in that, including annular core, winding, big ampere wires, copper pipe and some connection copper bars, one time winding is uniformly wound on annular core, big ampere wires is uniformly wound on a winding on outermost layer, and copper pipe is through the window of annular core, and one end of copper pipe is connected with one end of big ampere wires, the other end of copper pipe connects formation loop by connecting copper bar, constitutes Secondary Winding.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, described annular core uses the iron core that 4 ~ 8 model specifications are identical, and a winding parallel is on different annular cores.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, described big ampere wires is made up of multiply soft copper silk, and described big ampere wires cross-sectional area is 100 mm2~200mm2。
A kind of 36000A strong current generator the most according to claim 3, is characterized in that, described big ampere wires uniform winding on the outermost layer of winding of annular core, per share punching 2 ~ 6 circle.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, after described Secondary Winding passes annular core window with copper pipe, and core window tight.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, a described winding uses enamel covered wire material, and is provided with 2 taps.
A kind of 36000A strong current generator the most according to claim 6, is characterized in that, described annular core and a winding are provided with the temperature sensor of many groups and alarm.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, described copper pipe is hollow, is provided with cold water in described copper pipe, and external water pump pressurizes.
A kind of 36000A strong current generator the most according to claim 1, is characterized in that, the output interface of strong current generator is provided with a current sensing means, and the shell of strong current generator is provided with soft protective layer, and described protective layer is made up of silicone rubber.
10., according to the calibration method of a kind of 36000A strong current generator described in claim 1～9 any claim, it is characterized in that, comprise the following steps:
Step one: one end of the big ampere wires of multiply is connected with one end of copper pipe, and the other end of big ampere wires is connected with copper bar；
Step 2: copper pipe sequentially passes through the window of standard current transformer and tested current transformer；
Step 3: copper bar is connected with the other end of copper pipe, according to ct calibrating secondary connection principle, respectively the secondary terminals of standard current transformer, tested current transformer is connected with mutual-inductor tester, load box, carries out tested detecting current transformer according to ct calibrating code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610362633.6A CN105869831A (en) | 2016-05-26 | 2016-05-26 | 36000A strong current generator and detecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610362633.6A CN105869831A (en) | 2016-05-26 | 2016-05-26 | 36000A strong current generator and detecting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105869831A true CN105869831A (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610362633.6A Pending CN105869831A (en) | 2016-05-26 | 2016-05-26 | 36000A strong current generator and detecting method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727971A (en) * | 2017-11-02 | 2018-02-23 | 苏州安泰变压器有限公司 | A kind of three-phase Y type heavy current testers |
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
| CN117192174A (en) * | 2023-11-06 | 2023-12-08 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
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| CN202473587U (en) * | 2012-03-20 | 2012-10-03 | 天津市泰莱电力设备技术有限公司 | Feedthrough type current transformer |
| CN202649453U (en) * | 2012-06-12 | 2013-01-02 | 湖北省电力公司孝感供电公司电能计量中心 | Primary line used for detecting current transformers |
| DE102011082170A1 (en) * | 2011-09-06 | 2013-03-07 | Siemens Aktiengesellschaft | Current converter i.e. iron-core converter, for use in low-voltage power switch, has tertiary coil whose ends are electrically connected with one another, where tertiary coil is wrapped around part of magnetic core by through hole |
| CN203134539U (en) * | 2012-11-21 | 2013-08-14 | 王奉瑾 | Ring-shaped transformer |
| CN204706453U (en) * | 2015-06-18 | 2015-10-14 | 江苏鑫怡电力设备有限公司 | Automatic alarm instrument transformer |
| CN105353180A (en) * | 2015-12-28 | 2016-02-24 | 武汉磐电科技有限公司 | Strong current generator with multiple uniformly distributed conductors |
| CN205263295U (en) * | 2016-02-18 | 2016-05-25 | 武汉磐电科技有限公司 | 30000A current transformer verification system |
| CN205828053U (en) * | 2016-05-26 | 2016-12-21 | 国家电网公司 | A kind of 36000A strong current generator |
-
2016
- 2016-05-26 CN CN201610362633.6A patent/CN105869831A/en active Pending
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|---|---|---|---|---|
| CN2563725Y (en) * | 2002-07-19 | 2003-07-30 | 上海南桥变压器有限责任公司 | Double outlet low voltage heavy current transformer |
| CN1658344A (en) * | 2005-03-10 | 2005-08-24 | 上海Mwb互感器有限公司 | Low-power electronic current mutual inductor |
| CN201044208Y (en) * | 2007-05-09 | 2008-04-02 | 江山市三江互感器有限公司 | Penetration type ring section iron core current mutual inductor |
| DE102011082170A1 (en) * | 2011-09-06 | 2013-03-07 | Siemens Aktiengesellschaft | Current converter i.e. iron-core converter, for use in low-voltage power switch, has tertiary coil whose ends are electrically connected with one another, where tertiary coil is wrapped around part of magnetic core by through hole |
| CN202473587U (en) * | 2012-03-20 | 2012-10-03 | 天津市泰莱电力设备技术有限公司 | Feedthrough type current transformer |
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| CN203134539U (en) * | 2012-11-21 | 2013-08-14 | 王奉瑾 | Ring-shaped transformer |
| CN204706453U (en) * | 2015-06-18 | 2015-10-14 | 江苏鑫怡电力设备有限公司 | Automatic alarm instrument transformer |
| CN105353180A (en) * | 2015-12-28 | 2016-02-24 | 武汉磐电科技有限公司 | Strong current generator with multiple uniformly distributed conductors |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727971A (en) * | 2017-11-02 | 2018-02-23 | 苏州安泰变压器有限公司 | A kind of three-phase Y type heavy current testers |
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
| CN109407034B (en) * | 2018-12-12 | 2023-09-08 | 云南电网有限责任公司昆明供电局 | Primary and secondary synchronous wiring device of large-current transformer |
| CN117192174A (en) * | 2023-11-06 | 2023-12-08 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
| CN117192174B (en) * | 2023-11-06 | 2024-01-26 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
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Application publication date: 20160817 |
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