CN201237621Y - Capacitor switching test system - Google Patents
Capacitor switching test system Download PDFInfo
- Publication number
- CN201237621Y CN201237621Y CNU2008200261976U CN200820026197U CN201237621Y CN 201237621 Y CN201237621 Y CN 201237621Y CN U2008200261976 U CNU2008200261976 U CN U2008200261976U CN 200820026197 U CN200820026197 U CN 200820026197U CN 201237621 Y CN201237621 Y CN 201237621Y
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- signal input
- oscillograph
- current
- capacitor
- digits
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- Expired - Fee Related
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- 239000003990 capacitor Substances 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000006386 memory function Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 101100179449 Nicotiana tabacum A622 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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Abstract
A capacitor switching test system is characterized in that an oscillograph is a digital memory oscillograph with storage function, which is provided with a current signal input channel and three voltage signal input channels, and the current signal input channel of the digital memory oscillograph is electrically connected with a current transducer which is connected in series with the secondary winding of a current mutual-inductor; the primary winding of the current mutual-inductor is connected in series between capacitors and switches; each voltage signal input channel of the digital memory oscillograph is electrically connected with one terminal of a voltage divider, and the other terminal of every voltage divider is respectively and correspondingly connected with a connection point between each capacitor and the switch; and the power wire of the digital memory oscillograph is connected with an uninterrupted power supply UPS. The capacitor switching test system can be used for capacitor switching tests in a single-phase voltage circuit as well as a three-phase voltage circuit, and can store the test data; and the functionality of the system can be improved. The system is convenient to carry and wire, and is conveniently applied to a substation site.
Description
Technical field
The utility model relates to technical field of power systems, specifically is capacitor group switching pilot system in the electric system.
Background technology
At present in the electric system, often structure is very simple for capacitor group switching pilot system, oscillographic be provided with easy, though the overall system cost is lower like this; But the test channel of system is a current channel, a voltage channel, can only be used for the single-phase voltage circuit and use, and can not reflect the instantaneous state of three-phase voltage comprehensively, thus can not be used for the three-phase voltage circuit, but also lack data storage function.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of capacitor switching pilot system, it both can be used for capacitor switching test in the single-phase voltage circuit, also can be used for capacitor switching test in the three-phase voltage circuit, and test figure can be stored.
In order to address the above problem, the utility model is by the following technical solutions: this capacitor switching pilot system, comprise oscillograph, described oscillograph is to be provided with one road current signal input channel and three road voltage signal input channels and memory for digits oscillograph that memory function is arranged, the oscillographic current signal input channel of described memory for digits is electrically connected with a current transducer, current transducer is series on the Secondary Winding of current transformer, and a windings in series of current transformer is between capacitor and switch; Oscillographic each the voltage signal input channel of described memory for digits is electrically connected with an end of a voltage divider, on the corresponding respectively contact that is connected between each capacitor and its switch of the other end of each voltage divider; The oscillographic power lead of described memory for digits connects uninterrupted power source UPS.
When switch is thrown (cutting) capacitor group, the filling (putting) electric current and can change of capacitor, the capacitor terminal voltage also can change.Current transformer and current transducer transmit current signal to the memory for digits oscillograph by the current signal input channel; Voltage divider transmits voltage signal to the memory for digits oscillograph by the voltage signal input channel.Transient voltage during oscillograph display switch switching, current waveform and stored waveform data.Thereby judge whether to take place abnormality such as switch spring, blow-out difficulty, instantaneous overvoltage.The uninterrupted power source UPS that is connected with memory for digits oscillograph power lead can filter city's electrical interference, and can guarantee memory for digits oscillograph uninterrupted power supply, accuracy and reliability when guaranteeing system works.
The beneficial effects of the utility model are: it has overcome prior art can not be used for the defective that three-phase voltage circuit capacitor group switching is tested, both can be used for capacitor switching test in the single-phase voltage circuit, also can be used for capacitor switching test in the three-phase voltage circuit, and test figure can be stored; Avoided the problem of data recording difficulty, improved the functional of system, and this system is easy to carry, easy-to-connect conveniently is applied to the transformer station scene.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is used for the structural representation of single-phase voltage circuit for the utility model,
Fig. 2 is used for the structural representation of three-phase voltage circuit for the utility model,
Among the figure: 1 memory for digits oscillograph, 11 current signal input channels, 12 voltage signal input channels, 13 power leads, 2 current transducers, 3 current transformers, 4 capacitors, 5 switches, 6 voltage dividers, 7 uninterrupted power source UPS.
Embodiment
As shown in Figure 1, this capacitor switching pilot system comprises that one has the memory for digits oscillograph 1 of memory function, and this memory for digits oscillograph adopts Tektronix TDS3014, four road signal input channels are arranged, comprise one road current signal input channel 11 and three road voltage signal input channels 12.
Current signal input channel 11 is electrically connected with a current transducer 2, and current transducer 2 is series on the Secondary Winding of current transformer 3, and a windings in series of current transformer 3 is between capacitor 4 and switch 5.Current transducer is selected the pincerlike active electric current transmitter of Tektronix A622 for use, and this equipment can conveniently seal in current return.
Voltage signal input channel 12 is electrically connected with an end of voltage divider 6, on the corresponding respectively contact that is connected between capacitor 4 and its switch 5 of the other end of voltage divider 6.
The oscillographic power lead 13 of memory for digits connects uninterrupted power source UPS 7.
When switch 5 is thrown (cutting) capacitor groups, the filling (putting) electric current and can change of capacitor 4, capacitor 4 terminal voltages also can change.Current transformer 3 and current transducer 2 transmit current signal by current signal input channel 11 to memory for digits oscillograph 1; Voltage divider 6 transmits voltage signal by voltage signal input channel 12 to memory for digits oscillograph 1 simultaneously.Transient voltage, current waveform and stored waveform data during memory for digits oscillograph 1 display switch switching, thus judge whether to take place abnormality such as switch spring, blow-out difficulty, instantaneous overvoltage.The uninterrupted power source UPS 7 that is connected with memory for digits oscillograph power lead 13 can filter city's electrical interference, and can guarantee memory for digits oscillograph uninterrupted power supply, accuracy and reliability when guaranteeing system works.
As shown in Figure 2, this system applies is when the three-phase voltage circuit, and voltage divider is provided with three.One end of voltage divider is connected on oscillographic three the voltage signal input channels of memory for digits, and other end correspondence respectively is connected on three live wires.Current transformer, current transducer correspondence arbitrarily are connected on one road live wire.All the other technology are identical with the single-phase voltage circuit.
Claims (1)
1, a kind of capacitor switching pilot system, comprise oscillograph, it is characterized in that: described oscillograph is to be provided with one road current signal input channel and three road voltage signal input channels and memory for digits oscillograph that memory function is arranged, the oscillographic current signal input channel of described memory for digits is electrically connected with a current transducer, current transducer is series on the Secondary Winding of current transformer, and a windings in series of current transformer is between capacitor and switch; Oscillographic each the voltage signal input channel of described memory for digits is electrically connected with an end of a voltage divider, on the corresponding respectively contact that is connected between each capacitor and its switch of the other end of each voltage divider; The oscillographic power lead of described memory for digits connects uninterrupted power source UPS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200261976U CN201237621Y (en) | 2008-07-28 | 2008-07-28 | Capacitor switching test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200261976U CN201237621Y (en) | 2008-07-28 | 2008-07-28 | Capacitor switching test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237621Y true CN201237621Y (en) | 2009-05-13 |
Family
ID=40650354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200261976U Expired - Fee Related CN201237621Y (en) | 2008-07-28 | 2008-07-28 | Capacitor switching test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237621Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928693A (en) * | 2012-10-16 | 2013-02-13 | 云南电力试验研究院（集团）有限公司电力研究院 | Monitoring system and monitoring method for switching process of shunt power capacitor |
| CN103901300A (en) * | 2014-03-14 | 2014-07-02 | 重庆大学 | Switching operation test system of 10 kV parallel capacitor |
| CN105093005A (en) * | 2014-12-18 | 2015-11-25 | 华北电力大学 | Simulated full-load operation test platform of intelligent capacitor groups |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
-
2008
- 2008-07-28 CN CNU2008200261976U patent/CN201237621Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928693A (en) * | 2012-10-16 | 2013-02-13 | 云南电力试验研究院（集团）有限公司电力研究院 | Monitoring system and monitoring method for switching process of shunt power capacitor |
| CN102928693B (en) * | 2012-10-16 | 2016-04-20 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of the parallel power condenser switching process monitoring system and monitoring method |
| CN103901300A (en) * | 2014-03-14 | 2014-07-02 | 重庆大学 | Switching operation test system of 10 kV parallel capacitor |
| CN105093005A (en) * | 2014-12-18 | 2015-11-25 | 华北电力大学 | Simulated full-load operation test platform of intelligent capacitor groups |
| CN105093005B (en) * | 2014-12-18 | 2018-07-10 | 华北电力大学 | Intelligent capacitor group simulates oepration at full load test platform |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112014676B (en) * | 2020-09-11 | 2023-10-13 | 西安高压电器研究院股份有限公司 | Switching test device for capacitor device type test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN POWER SUPPLY COMPANY OF SHANDONG ELECTRIC PO Free format text: FORMER OWNER: JINAN POWER SUPPLY COMPANY Effective date: 20121212 Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121212 Address after: 250012 Shandong Province, Lixia District of Ji'nan City Luoyuan Street No. 238 Patentee after: Jinan Power Supply Co., Ltd. of Shandong Electric Power Corporation Patentee after: State Grid Corporation of China Address before: 250012, No. 238, Luo Yuan Street, Lixia District, Ji'nan City, Shandong Patentee before: Jinan Power Supply Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |