CN101625924B - Voltage transformer simulation load box - Google Patents
Voltage transformer simulation load box Download PDFInfo
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- CN101625924B CN101625924B CN200910074386XA CN200910074386A CN101625924B CN 101625924 B CN101625924 B CN 101625924B CN 200910074386X A CN200910074386X A CN 200910074386XA CN 200910074386 A CN200910074386 A CN 200910074386A CN 101625924 B CN101625924 B CN 101625924B
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- relay
- voltage transformer
- transformer
- current transformer
- self coupling
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- 238000004088 simulation Methods 0.000 title claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 24
- 229910002056 binary alloy Inorganic materials 0.000 claims description 6
- 238000004870 electrical engineering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention relates to a voltage transformer simulation load box, inputs secondary voltage into the voltage transformer, outputs an adjustable phase current source by a microcomputer electronic circuit, and then is converted to the required secondary current through the voltage transformer, while the size and phase of the outputted secondary current is controlled by a microcomputer, thereby ensuring that the voltage transformer with a secondary voltage of 100, 110, 120, 150, 200, 220 V, 100/square root 3, 110/square root 3, 120/square root 3, 150/square root 3, 200/square root 3, 220/square root 3V can obtain arbitrary simulation loads from 1 to 100VA with power factors being 0 to 1.00.
Description
Technical field
The invention belongs to transformer simulation load box, be specifically related to a kind of voltage transformer simulation load box.
Background technology
When measuring instrument transformer, must rated voltage difference, load admittance size and power factor voltages having different magnitude Burden box have been produced specially at the load that is added regulation by the secondary of examination instrument transformer for this reason.Although this voltage Burden box is arranged at present; FYF1 type emulation voltage Burden box like Shanxi Institute of Mechanical & Electrical Engineering's production; This voltage Burden box is on instrument transformer, to be connected with resistance, and it can only survey 0.8 and 1 power factor, if survey the power factor of other numerical value; Also need to make the voltage Burden box separately, can not satisfy the needs of surveying other special power factor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of voltage transformer simulation load box, and it can make, and secondary voltage is 100,110,120,150,200, to obtain 1～100VA power factor be any artificial load between 0～1.00 to the voltage transformer of 220V, 100/ √, 3,110/ √, 3,120/ √, 3,150/ √, 3,200/ √, 3,220/ √ 3V.
Technical scheme of the present invention: a kind of voltage transformer simulation load box; It is made up of voltage transformer Y1, self coupling voltage transformer Y2, current transformer Y3, self coupling current transformer Y4, micro electronmechanical circuitry phase QL, relay and the ramp of drifting; Ramp a, x connect a, the x end of voltage transformer Y1 power supply winding respectively; The H0 end of the b0 termination self coupling voltage transformer Y2 of the output winding of voltage transformer Y1; And connect the input P2 of the micro electronmechanical circuitry phase QL that drifts; The tap b1-b6 of output winding is connected with the H1 end of self coupling voltage transformer Y2 through relay J a1-Ja6; The H1 of self coupling voltage transformer Y2 or H2 end link to each other with the input P1 of the micro electronmechanical circuitry phase QL that drifts through relay J g, and the output Q1 of the micro electronmechanical circuitry phase QL that drifts is connected with the binary system of current transformer Y3 input winding D8 end, and another output Q2 is connected with d0 or the D0 end of current transformer Y3 through relay J 0; Binary system input winding d0D0, d1D1 are to d9D9 totally 10 windings; According to putting in order, D0 through relay J 1 is connected with d1 or D1, D1 passes through relay J 2 and is connected with d2 or D2, pass through relay J 9 up to D8 and be connected with d9 or D9; The output winding C0 end of current transformer Y3 links to each other with the E0 end of self coupling current transformer Y4 and is connected ramp D; The tap C1-C6 of the output winding of current transformer Y3 is connected to relay J r through relay J a1-Ja6, and is connected with E3 or the E1 end of self coupling current transformer Y4 through relay J r, and the E3 of self coupling current transformer Y4 or E2 end are connected to ramp Y through relay J g.
The present invention compared with prior art has following beneficial effect: the present invention can make that secondary voltage is 100,110,120,150,200, the voltage transformer of 220V, 100/ √, 3,110/ √, 3,120/ √, 3,150/ √, 3,200/ √, 3,220/ √ 3V obtains any artificial load of 1～100VA power factor 0～1.00.
Description of drawings
Fig. 1 is a schematic circuit of the present invention.
Embodiment
A kind of voltage transformer simulation load box; It is made up of voltage transformer Y1, self coupling voltage transformer Y2, current transformer Y3, self coupling current transformer Y4, micro electronmechanical circuitry phase QL, relay and the ramp of drifting; Ramp a, x connect a, the x end of voltage transformer Y1 power supply winding respectively; The H0 end of the b0 termination self coupling voltage transformer Y2 of the output winding of voltage transformer Y1; And connect the input P2 of the micro electronmechanical circuitry phase QL that drifts; The tap b1-b6 of output winding is connected with the H1 end of self coupling voltage transformer Y2 through relay J a1-Ja6; The H1 of self coupling voltage transformer Y2 or H2 end link to each other with the input P1 of the micro electronmechanical circuitry phase QL that drifts through relay J g, and the output Q1 of the micro electronmechanical circuitry phase QL that drifts is connected with the binary system of current transformer Y3 input winding D8 end, and another output Q2 is connected with d0 or the D0 end of current transformer Y3 through relay J 0; Binary system input winding d0D0, d1D1 are to d9D9 totally 10 windings; According to putting in order, D0 through relay J 1 is connected with d1 or D1, D1 passes through relay J 2 and is connected with d2 or D2, pass through relay J 9 up to D8 and be connected with d9 or D9; The output winding C0 end of current transformer Y3 links to each other with the E0 end of self coupling current transformer Y4 and is connected ramp D; The tap C1-C6 of the output winding of current transformer Y3 is connected to relay J r through relay J a1-Ja6, and is connected with E3 or the E1 end of self coupling current transformer Y4 through relay J r, and the E3 of self coupling current transformer Y4 or E2 end are connected to ramp Y through relay J g.
Operation principle:
Input voltage instrument transformer secondary voltage; Through microcomputer electronic circuit output adjustable phase current source; Convert the device of required secondary current into through instrument transformer; And the secondary current size of output and phase place be by system controlled by computer, can make that secondary voltage is 100,110,120,150,200, the voltage transformer of 220V, 100/ √, 3,110/ √, 3,120/ √, 3,150/ √, 3,200/ √, 3,220/ √ 3V obtains any artificial load of 1～100VA power factor 0～1.00.
The micro electronmechanical circuitry phase QL that drifts is produced by Shanxi Institute of Mechanical & Electrical Engineering.
Claims (1)
1. voltage transformer simulation load box; It is made up of voltage transformer (Y1), self coupling voltage transformer (Y2), current transformer (Y3), self coupling current transformer (Y4), the micro electronmechanical circuitry phase that drifts (QL), relay and ramp; It is characterized in that ramp a, x connect a of voltage transformer (Y1) power supply winding, x end respectively; The H0 end of the b0 termination self coupling voltage transformer (Y2) of the output winding of voltage transformer (Y1); And connect the input P2 of the micro electronmechanical circuitry phase that drifts (QL); The tap b1-b6 of output winding is connected with the H1 end of self coupling voltage transformer (Y2) through relay J a1-Ja6; The H1 of self coupling voltage transformer (Y2) or H2 end link to each other with the input P1 of the micro electronmechanical circuitry phase that drifts (QL) through relay J g, and the output Q1 of the micro electronmechanical circuitry phase that drifts (QL) is connected with the binary system input winding D8 end of current transformer (Y3), and another output Q2 is connected with the d0 or the D0 end of current transformer (Y3) through relay J 0; Binary system input winding d0D0, d1D1 are to d9D9 totally 10 windings; According to putting in order, D0 through relay J 1 is connected with d1 or D1, D1 passes through relay J 2 and is connected with d2 or D2, pass through relay J 9 up to D8 and be connected with d9 or D9; The output winding C0 end of current transformer (Y3) links to each other with the E0 end of self coupling current transformer (Y4) and is connected ramp D; The tap C1-C6 of the output winding of current transformer (Y3) is connected to relay J r through relay J a1-Ja6, and is connected with the E3 or the E1 end of self coupling current transformer (Y4) through relay J r, and the E3 of self coupling current transformer (Y4) or E2 end are connected to ramp Y through relay J g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910074386XA CN101625924B (en) | 2009-05-14 | 2009-05-14 | Voltage transformer simulation load box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910074386XA CN101625924B (en) | 2009-05-14 | 2009-05-14 | Voltage transformer simulation load box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101625924A CN101625924A (en) | 2010-01-13 |
| CN101625924B true CN101625924B (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910074386XA Expired - Fee Related CN101625924B (en) | 2009-05-14 | 2009-05-14 | Voltage transformer simulation load box |
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| Country | Link |
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| CN (1) | CN101625924B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738852A (en) * | 2016-04-11 | 2016-07-06 | 江苏方天电力技术有限公司 | Tandem type open circuit-preventing current burden box |
| CN106772197B (en) * | 2017-01-05 | 2019-11-01 | 云南电网有限责任公司电力科学研究院 | Calibration device for load box of mutual inductor |
| CN107192974B (en) * | 2017-07-19 | 2023-06-09 | 云南电网有限责任公司电力科学研究院 | Integrated voltage and current standard transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061699U (en) * | 1989-11-21 | 1990-09-05 | 山西省机械设计研究所 | Voltage transformer for emulate voltage load box |
| CN201408637Y (en) * | 2009-05-14 | 2010-02-17 | 河南电力试验研究院 | Artificial load box of current transformer |
-
2009
- 2009-05-14 CN CN200910074386XA patent/CN101625924B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061699U (en) * | 1989-11-21 | 1990-09-05 | 山西省机械设计研究所 | Voltage transformer for emulate voltage load box |
| CN201408637Y (en) * | 2009-05-14 | 2010-02-17 | 河南电力试验研究院 | Artificial load box of current transformer |
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| Publication number | Publication date |
|---|---|
| CN101625924A (en) | 2010-01-13 |
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Owner name: HE'NAN ELECTRIC POWER CORPORATION, ELECTRIC POWER Free format text: FORMER OWNER: SHANXI INSTITUTE OF MECHANICAL + ELECTRICAL ENGINEERING Effective date: 20130423 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: HENAN INSTITUTE OF POWER EXPERIMENT Effective date: 20130423 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 450052 ZHENGZHOU, HENAN PROVINCE TO: 100031 DONGCHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130423 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Henan Electric Power Corporation Electric Power Science Research Institute Patentee after: Shanxi Institute of Mechanical & Electrical Engineering Address before: 450052 Songshan South Road, Henan, No. 85, No. Patentee before: Henan Institute of Power Experiment Patentee before: Shanxi Institute of Mechanical & Electrical Engineering |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20160514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |