CN202948047U - Device for measuring secondary transient voltage in intelligent transformer substation - Google Patents
Device for measuring secondary transient voltage in intelligent transformer substation Download PDFInfo
- Publication number
- CN202948047U CN202948047U CN 201220695465 CN201220695465U CN202948047U CN 202948047 U CN202948047 U CN 202948047U CN 201220695465 CN201220695465 CN 201220695465 CN 201220695465 U CN201220695465 U CN 201220695465U CN 202948047 U CN202948047 U CN 202948047U
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- voltage measurement
- oscillograph
- voltage
- intelligent substation
- transient voltage
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- 230000001052 transient effect Effects 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 59
- 239000000523 sample Substances 0.000 claims abstract description 34
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000011888 foil Substances 0.000 claims description 5
- 230000000873 masking effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 230000036039 immunity Effects 0.000 description 3
- -1 oscillograph Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
The utility model relates to a device for measuring the secondary transient voltage in an intelligent transformer substation, which is characterized by comprising a voltage transformer, a voltage measuring probe, an oscilloscope, an optical fiber transceiver and a computer. The secondary coil of the voltage transformer is connected with the oscilloscope through the voltage measuring probe. The oscilloscope is connected with the computer through the optical fiber transceiver. Due to the arrangement of the voltage transformer, the voltage measuring probe, the oscilloscope, the optical fiber transceiver and the computer, the secondary transient voltage in an intelligent transformer substation can be measured more accurately by means of the device, while the visualized display of the measurement is also realized. Thus, the safe and reliable running of the transformer substation is ensured.
Description
Technical field
The utility model relates to high voltage power transmission and transforming engineering electromagnetic compatibility technology field, refers to particularly a kind of intelligent substation secondary transient voltage measurement mechanism.
Technical background
The final goal of intelligent substation is to make intelligent assembly and high-tension apparatus form integrated layout, realizes the optimized network control structure of " a two-layer net "; So just make and be arranged in a large number the intelligent assembly (protection, control, measurement, metering and Condition Monitoring Unit) of protection in cell and move forward in the high-voltage switch gear field; can these be worked under the extremely abominable electromagnetic environment of switch yard by the intelligent assembly that microelectronic component forms, and caused Operation of Electric Systems department and device fabrication business's extensive concern.For this reason in the urgent need to being connected to the transient state disturbance voltage on secondary device in the measuring switch field, grasp the characterisitic parameters such as substation secondary transient state disturbance voltage amplitude, frequency and waveform, in order to formulate accordingly the transient voltage immunity standard of secondary equipment of intelligent converting station, guarantee the substation safety reliability service.High due to substation secondary transient voltage frequency, amplitude is high, is difficult to accurate measurement, also there is no the substation secondary transient voltage measurement mechanism of science, standard at present.
The utility model content
The purpose of this utility model will provide a kind of intelligent substation secondary transient voltage measurement mechanism exactly, and this device can the interior secondary transient voltage of Measurement accuracy intelligent substation.
For realizing this purpose, the intelligent substation secondary transient voltage measurement mechanism that the utility model is designed, it is characterized in that: it comprises voltage transformer (VT), voltage measurement probe, oscillograph, fiber optical transceiver and computer, wherein, the primary winding of described voltage transformer (VT) connects high-tension line, the secondary coil of voltage transformer (VT) is popped one's head in by voltage measurement and is connected oscillograph, and described oscillograph connects computer by fiber optical transceiver.
In technique scheme, it also comprises the first shielded box and secondary shielding case, and described voltage measurement probe is positioned at the first shielded box, and oscillograph is positioned at the secondary shielding case.
Connect by cable between described voltage measurement probe and oscillograph, also be connected by cable between the secondary coil of described voltage measurement probe and voltage transformer (VT).
Be connected by optical fiber between described oscillograph and fiber optical transceiver.
The bandwidth of described voltage measurement probe is 50MHz, and the voltage measurement scope of voltage measurement probe is at 0 ~ 30kV.
Described oscillographic bandwidth is 500MHz, and oscillographic storage depth is 125MB.
The shield effectiveness of described the first shielded box and secondary shielding case is more than 50dB.
Described cable all is enclosed with masking foil.
Cable length scope between described voltage measurement probe and oscillograph is 0.5 ~ 2m, cable length between the secondary coil of described voltage measurement probe and voltage transformer (VT) is 0.5 ~ 1m, connect by optical fiber between described fiber optical transceiver and oscillograph, the distance that connects optical fiber between described fiber optical transceiver and oscillograph is 150 ~ 250m.
The utility model is by arranging voltage transformer (VT), voltage measurement probe, oscillograph, fiber optical transceiver and computer, make the secondary transient voltage in this device energy Measurement accuracy intelligent substation, and carry out visualization display, for the transient voltage immunity standard of formulating secondary equipment of intelligent converting station provides reference data.In addition, use the utility model can guarantee the substation safety reliability service.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Wherein, 1-voltage transformer (VT), 2-voltage measurement probe, 3-oscillograph, 4-fiber optical transceiver, 5-computer, the 6-the first shielded box, 7-secondary shielding case.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Intelligent substation secondary transient voltage measurement mechanism in figure shown in 1, it comprises voltage transformer (VT) 1, voltage measurement probe 2, oscillograph 3, fiber optical transceiver 4 and computer 5, wherein, the primary winding of voltage transformer (VT) 1 connects high-tension line, the secondary coil of voltage transformer (VT) 1 is popped one's head in by voltage measurement and 2 is connected oscillographs 3, and oscillograph 3 connects computers 5 by fiber optical transceiver 4.
In technique scheme, it also comprises the first shielded box 6 and secondary shielding case 7, and voltage measurement probe 2 is positioned at the first shielded box 6, and oscillograph 3 is positioned at secondary shielding case 7.
In technique scheme, connects by cable between voltage measurement probe 2 and oscillograph 3, voltage measurement pop one's head in 2 with the secondary coil of voltage transformer (VT) 1 between also be connected by cable.
In technique scheme, be connected by optical fiber between oscillograph 3 and fiber optical transceiver 4.Above-mentioned fiber optical transceiver 4 is selected HTB-1100S 25KM single-mode fiber transceiver, and light signal is converted to the netting twine signal, and computer 5 is connected with oscillograph 3.
In technique scheme, the bandwidth of voltage measurement probe 2 is 50MHz, and the voltage measurement scope of voltage measurement probe 2 is at 0 ~ 30kV.Above-mentioned voltage measurement probe 2 is selected Tyke P6015A high-voltage probe, its bandwidth 75MHz, attenuation ratio 1000X, load 100M Ω/3pF.Utilize the stube cable of probe itself to be connected with measured piece, guarantee that stube cable is short as far as possible, generally be no more than 1m, and with masking foil, stube cable wrapped up, simultaneously voltage measurement probe 2 is placed in the first shielded box 6, the first shielded box 6 volumes are advisable just to hold measuring sonde.
In technique scheme, the bandwidth of oscillograph 3 is 500MHz, and the storage depth of oscillograph 3 is 125MB.Above-mentioned oscillograph 3 is selected Yokogawa 2104 types, its bandwidth 500MHz, sampling rate 2.5GS/s, storage depth 125MB.Utilize two ends for the stube cable of BNC type joint, voltage measurement probe 2 to be connected with oscillograph 3, stube cable is short as far as possible, generally is no more than 1m.And with masking foil, stube cable is wrapped up, simultaneously oscillograph 3 is placed in secondary shielding case 7, oscillograph 3 adopts accumulator to add the method for supplying power to of inverter, accumulator and inverter also are placed in secondary shielding case 7, and the volume of secondary shielding case 7 is advisable just to hold oscillograph 3, accumulator and inverter.Also voltage measurement can be popped one's head in 2, oscillograph, accumulator and inverter be placed in a volume adequate shielding case, connected mode is constant.
In technique scheme, the shield effectiveness of the first shielded box 6 and secondary shielding case 7 is more than 50dB.
In technique scheme, described cable all is enclosed with masking foil.
In technique scheme, cable length scope between described voltage measurement probe 2 and oscillograph 3 is 0.5 ~ 2m, cable length between the secondary coil of described voltage measurement probe 2 and voltage transformer (VT) 1 is 0.5 ~ 1m, connect by optical fiber between described fiber optical transceiver 4 and oscillograph 3, the distance that connects optical fiber between described fiber optical transceiver 4 and oscillograph 3 is 150 ~ 250m.
When the utility model was installed: voltage measurement probe 2 and oscillograph 3 were arranged in the shielded box of measure field, and fiber optical transceiver 4 and computer 5 are placed on the measurement zone in a distant place.
During the utility model work: produce the transient state disturbance voltage in voltage transformer (VT) 1 secondary coil side when the transformer substation switch switching, the secondary transient state disturbance voltage signal of voltage measurement probe 2 induced voltage mutual inductor 1 secondary coils, this signal is sent to oscillograph 3, oscillograph 3 characterizes out the waveform of secondary transient state disturbance voltage signal, this waveform signal sends computer 5 to by fiber optical transceiver 4 and shows, formulates the transient voltage immunity standard of secondary equipment of intelligent converting station for the technician.
The content that this instructions is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (9)
1. intelligent substation secondary transient voltage measurement mechanism, it is characterized in that: it comprises voltage transformer (VT) (1), voltage measurement probe (2), oscillograph (3), fiber optical transceiver (4) and computer (5), wherein, the primary winding of described voltage transformer (VT) (1) connects high-tension line, the secondary coil of voltage transformer (VT) (1) by voltage measurement pop one's head in (2) connect oscillograph (3), described oscillograph (3) connects computer (5) by fiber optical transceiver (4).
2. intelligent substation secondary transient voltage measurement mechanism according to claim 1, it is characterized in that: it also comprises the first shielded box (6) and secondary shielding case (7), described voltage measurement probe (2) is positioned at the first shielded box (6), and oscillograph (3) is positioned at secondary shielding case (7).
3. intelligent substation secondary transient voltage measurement mechanism according to claim 1, it is characterized in that: connect by cable between described voltage measurement probe (2) and oscillograph (3), described voltage measurement is popped one's head in and also is connected by cable between the secondary coil of (2) and voltage transformer (VT) (1).
4. intelligent substation secondary transient voltage measurement mechanism according to claim 1 is characterized in that: be connected by optical fiber between described oscillograph (3) and fiber optical transceiver (4).
5. intelligent substation secondary transient voltage measurement mechanism according to claim 1 is characterized in that: the bandwidth of described voltage measurement probe (2) is 50MHz, and the voltage measurement scope of voltage measurement probe (2) is at 0 ~ 30kV.
6. intelligent substation secondary transient voltage measurement mechanism according to claim 1, it is characterized in that: the bandwidth of described oscillograph (3) is 500MHz, the storage depth of oscillograph (3) is 125MB.
7. intelligent substation secondary transient voltage measurement mechanism according to claim 2, it is characterized in that: the shield effectiveness of described the first shielded box (6) and secondary shielding case (7) is more than 50dB.
8. intelligent substation secondary transient voltage measurement mechanism according to claim 3, it is characterized in that: described cable all is enclosed with masking foil.
9. intelligent substation secondary transient voltage measurement mechanism according to claim 8, it is characterized in that: the cable length scope between described voltage measurement probe (2) and oscillograph (3) is 0.5 ~ 2m, cable length between the secondary coil of described voltage measurement probe (2) and voltage transformer (VT) (1) is 0.5 ~ 1m, connect by optical fiber between described fiber optical transceiver (4) and oscillograph (3), the distance that connects optical fiber between described fiber optical transceiver (4) and oscillograph (3) is 150 ~ 250m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695465 CN202948047U (en) | 2012-12-14 | 2012-12-14 | Device for measuring secondary transient voltage in intelligent transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695465 CN202948047U (en) | 2012-12-14 | 2012-12-14 | Device for measuring secondary transient voltage in intelligent transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948047U true CN202948047U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695465 Expired - Lifetime CN202948047U (en) | 2012-12-14 | 2012-12-14 | Device for measuring secondary transient voltage in intelligent transformer substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091541A (en) * | 2012-12-14 | 2013-05-08 | 中国电力科学研究院 | Intelligent substation secondary transient voltage measuring device and measuring method |
-
2012
- 2012-12-14 CN CN 201220695465 patent/CN202948047U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091541A (en) * | 2012-12-14 | 2013-05-08 | 中国电力科学研究院 | Intelligent substation secondary transient voltage measuring device and measuring method |
| CN103091541B (en) * | 2012-12-14 | 2016-01-20 | 中国电力科学研究院 | A kind of intelligent substation secondary transient voltage measurement mechanism and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |