CN105372618A - 500kV voltage transformer check power source multi-stage reactive power compensation system - Google Patents
500kV voltage transformer check power source multi-stage reactive power compensation system Download PDFInfo
- Publication number
- CN105372618A CN105372618A CN201510929112.XA CN201510929112A CN105372618A CN 105372618 A CN105372618 A CN 105372618A CN 201510929112 A CN201510929112 A CN 201510929112A CN 105372618 A CN105372618 A CN 105372618A
- Authority
- CN
- China
- Prior art keywords
- transformer
- voltage
- voltage transformer
- power supply
- compensation system
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a 500kV voltage transformer check power source multi-stage reactive power compensation system. The 500kV voltage transformer check power source multi-stage reactive power compensation system includes a voltage adjustment control power source, a three-winding step-up transformer, a multi-stage reactive power compensation device and a remote controller; the output end of the voltage adjustment control power source is connected with the input end of the three-winding step-up transformer; the first output end of the three-winding step-up transformer provides voltage for a standard voltage transformer and a tested voltage transformer in a 500kV voltage transformer error check loop respectively; and the second output end of the three-winding step-up transformer is connected in parallel with the multi-stage reactive power compensation device. With the 500kV voltage transformer check power source multi-stage reactive power compensation system of the invention adopted, compensation requirements of most 500kV voltage transformer error check loops can be satisfied, and capacity requirements of a power supply source and the voltage adjustment control power source can lowered. The 500kV voltage transformer check power source multi-stage reactive power compensation system is very suitable for field check of 500kV voltage transformers.
Description
Technical field
The present invention relates to the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply, belong to transformer test technical field.
Background technology
500kV voltage transformer (VT) is divided into voltage transformer (VT) in GIS, independently electromagnetic potential transformer, capacitance type potential transformer (CVT), for 500kVGIS formula voltage transformer (VT), the GIS pipeline of different length, corresponding different distributions electric capacity, different 500kV capacitance type potential transformer electric capacitys also may be different, when error checking being carried out to 500kV voltage transformer (VT) according to " JJG1021-2007 " regulatory requirements, need boost to rated voltage 110% reaches 320kV, trial voltage is high, capacitive component is large, and required experiment power supply capacity is large.General employing is boosted in testing transformer mode, the method becoming output terminal parallel high voltage mutual reactor (the reactor connection in series-parallel by different size) in test produces in inductance current the capacity current closed in voltage transformer error verification loop, reduces power supply capacity.Because of the uncertainty of the electric capacity that verification loop need compensate, need to realize different compensation rates by the reactor connection in series-parallel of different size.Due to reactor heavier-weight, the on-the-spot reactor connection in series-parallel to different size, wastes time and energy, inefficiency, and the reactor set up exists the potential safety hazard dropped, and during REgulatable reactor onsite application, noise is large.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply.
In order to achieve the above object, the technical solution adopted in the present invention is:
The multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply, comprises Regulation Control power supply, three winding stepup transformer, multistage reactive power compensator and remote controllers; The output terminal of described Regulation Control power supply is connected with the input end of three winding stepup transformer, first output terminal of described three winding stepup transformer is respectively standard potential transformer in 500kV voltage transformer error verification loop and tested voltage transformer (VT) provides voltage, and the second output terminal of described three winding stepup transformer is in parallel with multistage reactive power compensator.
The compensation range of described multistage reactive power compensator is 0 ~ 10500pF, compensates 16 kinds of compensation that fineness is 700pF, and compensation maximum offset is 350pF.
Described multistage reactive power compensator is formed primarily of four groups of reactor parallel connections, often organizes reactor and is also in series with switch.
Described reactor is constant reactance device.
The input voltage of described Regulation Control power supply is 0 ~ 380V, output voltage 0 ~ 400V; Three winding stepup transformer first output terminal output voltage is 0 ~ 350kV, and the second output terminal output voltage is 0 ~ 10kV.
Described multistage reactive power compensator is arranged in Regulation Control case, and described Regulation Control case is connected with remote controllers.
The beneficial effect that the present invention reaches: 1, the present invention can meet the compensation requirement in most 500kV voltage transformer error verification loop, reduce the capacity requirement to power supply and Regulation Control power supply, be very suitable for the field-checking of 500kV voltage transformer (VT); 2, the present invention controls multistage reactive power compensator by remote controllers and selects compensation way, on-the-spot without the need to carrying combination reactor, improves compensation efficiency.
Accompanying drawing explanation
Fig. 1 is principle of the invention figure.
Fig. 2 is appearance assumption diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply, comprises Regulation Control power supply, three winding stepup transformer, multistage reactive power compensator and remote controllers.The output terminal of Regulation Control power supply is connected with the input end (ax namely in figure holds) of three winding stepup transformer, first output terminal of three winding stepup transformer (the A1X1 end namely in figure) is respectively standard potential transformer in 500kV voltage transformer error verification loop and tested voltage transformer (VT) provides voltage, and second output terminal (the A2X2 end namely in figure) of three winding stepup transformer is in parallel with multistage reactive power compensator.
The input voltage of above-mentioned Regulation Control power supply is 0 ~ 380V, output voltage 0 ~ 400V; Three winding stepup transformer first output terminal output voltage is 0 ~ 350kV, and the second output terminal output voltage is 0 ~ 10kV.
Multistage reactive power compensator is formed primarily of four groups of reactor parallel connections, often organize reactor and be also in series with switch, by the switch of gauge tap and closed, realize the adjustment of multistage reactive power compensator inductance value, here reactor adopts constant reactance device, mechanical regulates controlled variable, and during use, noise is little.Specifically as shown in FIG., four groups of reactors are respectively L1, L2, L3 and L4, four groups of switches are respectively K1, K2, K3 and K4, L1 inductance value is 14489H, L2 inductance value is 7224H, L1 inductance value is 3622H, L1 inductance value is 1811H, and corresponding building-out capacitor value is 700pF, 1400pF, 2800pF and 5600pF.The compensation range of multistage reactive power compensator is 0 ~ 10500pF, compensates 16 kinds of compensation that fineness is 700pF, and compensation maximum offset is 350pF, and compensation range is wide, compensation efficiency is high.
16 kinds of compensation are specific as follows:
1) when system needs the electric capacity compensated to be less than 350pF, when entirely being disconnected by remote controllers control and compensation amount K1, K2, K3, K4,0pF compensation rate is dropped into;
2) when system need the electric capacity compensated be more than or equal to 350pF be less than or equal to 700pF time, closed by remote controllers controls K1, K2, K3, K4 disconnect entirely, input 700pF compensation rate;
3) when system need the electric capacity compensated be greater than 700pF be less than or equal to 1400pF time, closed by remote controllers controls K2, when K1, K3, K4 disconnect entirely, input 1400pF compensation rate;
4) when system need the electric capacity compensated be greater than 1400pF be less than or equal to 2100pF time, closed by remote controllers control K1, K2, when K3, K4 disconnect entirely, drop into 2100pF compensation rate;
5) when system need the electric capacity compensated be greater than 2100pF be less than or equal to 2800pF time, closed by remote controllers controls K3, when K1, K2, K4 disconnect entirely, input 2800pF compensation rate;
6) when system need the electric capacity compensated be greater than 2800pF be less than or equal to 3400pF time, closed by remote controllers control K1, K3, when K2, K4 disconnect entirely, drop into 3400pF compensation rate;
7) when system need the electric capacity compensated be greater than 3400pF be less than or equal to 4200pF time, closed by remote controllers control K2, K3, when K1, K4 disconnect entirely, drop into 4200pF compensation rate;
8) when system need the electric capacity compensated be greater than 4200pF be less than or equal to 4900pF time, closed by remote controllers control K1, K2, K3, when K4 disconnects entirely, drop into 4900pF compensation rate;
9) when system need the electric capacity compensated be greater than 4900pF be less than or equal to 5600pF time, closed by remote controllers controls K4, when K1, K2, K3 disconnect entirely, input 5600pF compensation rate;
10) when system need the electric capacity compensated be greater than 5600pF be less than or equal to 6300pF time, closed by remote controllers control K1, K4, when K2, K3 disconnect entirely, drop into 6300pF compensation rate;
11) when system need the electric capacity compensated be greater than 6300pF be less than or equal to 7000pF time, closed by remote controllers control K2, K4, when K1, K3 disconnect entirely, drop into 7000pF compensation rate;
12) when system need the electric capacity compensated be greater than 7000pF be less than or equal to 7700pF time, closed by remote controllers control K1, K2, K4, when K1, K3 disconnect entirely, drop into 7700pF compensation rate;
13) when system need the electric capacity compensated be greater than 7700pF be less than or equal to 8400pF time, closed by remote controllers control K3, K4, when K1, K2 disconnect, drop into 8400pF compensation rate;
14) when system need the electric capacity compensated be greater than 8400pF be less than or equal to 9100pF time, closed by remote controllers control K1, K3, K4, when K2 disconnects, drop into 9100pF compensation rate;
15) when system need the electric capacity compensated be greater than 9100pF be less than or equal to 9800pF or equal time, closed by remote controllers K2, K3, K4, when K1, K2 disconnect entirely, compensation rate is 9800pF;
16) when system need the electric capacity compensated be greater than 9800pF be less than or equal to 10500pF time, closed by remote controllers K1, K2, K3, K4, when K1, K2 disconnect entirely, compensation rate is 10500pF.
As shown in Figure 2, the appearance assumption diagram of system, figure comprises Regulation Control case 1, three winding stepup transformer 2 and standard potential transformer 3, Regulation Control case 1, three winding stepup transformer 2 and standard potential transformer 3 are co-located on a pedestal, multistage reactive power compensator is arranged in Regulation Control case 1, in order to realize Long-distance Control, Regulation Control case is connected with remote controllers, here cable is generally adopted to connect, remote controllers can monitor the input voltage of error checking, output voltage, output current and power factor, according to display situation, select the multistage reactive power compensator of switching, until reach optimum power factor.Thisly control multistage reactive power compensator by remote controllers and select compensation way, on-the-spot without the need to carrying combination reactor, improve compensation efficiency.
In sum, said system can meet the compensation requirement in most 500kV voltage transformer error verification loop, reduces the capacity requirement to power supply and Regulation Control power supply, is very suitable for the field-checking of 500kV voltage transformer (VT).
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. the multistage reactive compensation system of 500kV voltage transformer (VT) verifying power supply, is characterized in that: comprise Regulation Control power supply, three winding stepup transformer, multistage reactive power compensator and remote controllers;
The output terminal of described Regulation Control power supply is connected with the input end of three winding stepup transformer, first output terminal of described three winding stepup transformer is respectively standard potential transformer in 500kV voltage transformer error verification loop and tested voltage transformer (VT) provides voltage, and the second output terminal of described three winding stepup transformer is in parallel with multistage reactive power compensator.
2. the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply according to claim 1, it is characterized in that: the compensation range of described multistage reactive power compensator is 0 ~ 10500pF, compensates 16 kinds of compensation that fineness is 700pF, and compensation maximum offset is 350pF.
3. the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply according to claim 2, is characterized in that: described multistage reactive power compensator is formed primarily of four groups of reactor parallel connections, often organizes reactor and is also in series with switch.
4. the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply according to claim 3, is characterized in that: described reactor is constant reactance device.
5. the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply according to claim 1, is characterized in that: the input voltage of described Regulation Control power supply is 0 ~ 380V, output voltage 0 ~ 400V; Three winding stepup transformer first output terminal output voltage is 0 ~ 350kV, and the second output terminal output voltage is 0 ~ 10kV.
6. the multistage reactive compensation system of a kind of 500kV voltage transformer (VT) verifying power supply according to claim 1-5 any one, it is characterized in that: described multistage reactive power compensator is arranged in Regulation Control case, described Regulation Control case is connected with remote controllers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929112.XA CN105372618A (en) | 2015-12-15 | 2015-12-15 | 500kV voltage transformer check power source multi-stage reactive power compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929112.XA CN105372618A (en) | 2015-12-15 | 2015-12-15 | 500kV voltage transformer check power source multi-stage reactive power compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105372618A true CN105372618A (en) | 2016-03-02 |
Family
ID=55374975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929112.XA Pending CN105372618A (en) | 2015-12-15 | 2015-12-15 | 500kV voltage transformer check power source multi-stage reactive power compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105372618A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877946A (en) * | 2017-01-18 | 2017-06-20 | 上海创远仪器技术股份有限公司 | A kind of high-performance channel simulator automatically controls receiver and its checking device |
| CN107340490A (en) * | 2017-07-19 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | Voltage transformer verification platform and boosting compensation method in GIS |
| CN107422291A (en) * | 2017-09-14 | 2017-12-01 | 中国电力科学研究院 | A kind of AC extra high voltage voltage transformer error check system and method |
| CN110729743A (en) * | 2019-11-29 | 2020-01-24 | 山东送变电工程有限公司 | Inductive current compensation type test transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854486A (en) * | 2012-09-26 | 2013-01-02 | 湖北省电力公司电力科学研究院 | On-site initiative error-verification system for voltage transformer and method thereof |
| CN203535212U (en) * | 2013-11-08 | 2014-04-09 | 国家电网公司 | On-site verification reactive power compensation device of capacitor voltage transformer |
| WO2015074538A1 (en) * | 2013-11-21 | 2015-05-28 | 国家电网公司 | Automatic unfolding type on-site calibration vehicle for high-voltage transformers |
| CN105093159A (en) * | 2015-09-28 | 2015-11-25 | 国家电网公司 | On-vehicle easy-maintenance voltage transformer error calibration system and method thereof |
| CN205333839U (en) * | 2015-12-15 | 2016-06-22 | 国家电网公司 | Multistage reactive compensation system of 500kV voltage transformer check -up power |
-
2015
- 2015-12-15 CN CN201510929112.XA patent/CN105372618A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854486A (en) * | 2012-09-26 | 2013-01-02 | 湖北省电力公司电力科学研究院 | On-site initiative error-verification system for voltage transformer and method thereof |
| CN203535212U (en) * | 2013-11-08 | 2014-04-09 | 国家电网公司 | On-site verification reactive power compensation device of capacitor voltage transformer |
| WO2015074538A1 (en) * | 2013-11-21 | 2015-05-28 | 国家电网公司 | Automatic unfolding type on-site calibration vehicle for high-voltage transformers |
| CN105093159A (en) * | 2015-09-28 | 2015-11-25 | 国家电网公司 | On-vehicle easy-maintenance voltage transformer error calibration system and method thereof |
| CN205333839U (en) * | 2015-12-15 | 2016-06-22 | 国家电网公司 | Multistage reactive compensation system of 500kV voltage transformer check -up power |
Non-Patent Citations (1)
| Title |
|---|
| 杨剑等: "220kV电压互感器现场计量检定平台的研究", 《自动化与仪器仪表》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877946A (en) * | 2017-01-18 | 2017-06-20 | 上海创远仪器技术股份有限公司 | A kind of high-performance channel simulator automatically controls receiver and its checking device |
| CN106877946B (en) * | 2017-01-18 | 2020-09-18 | 上海创远仪器技术股份有限公司 | High-performance channel simulator automatic control receiver and verification device thereof |
| CN107340490A (en) * | 2017-07-19 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | Voltage transformer verification platform and boosting compensation method in GIS |
| CN107422291A (en) * | 2017-09-14 | 2017-12-01 | 中国电力科学研究院 | A kind of AC extra high voltage voltage transformer error check system and method |
| CN110729743A (en) * | 2019-11-29 | 2020-01-24 | 山东送变电工程有限公司 | Inductive current compensation type test transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105372618A (en) | 500kV voltage transformer check power source multi-stage reactive power compensation system | |
| CN103558536A (en) | Circuit for testing overload tolerance capacity of series capacitor and working method of circuit | |
| CN106130021B (en) | T-shaped hybrid flexible tuning device | |
| CN104345234A (en) | Harmonic power supply feature test system and method | |
| CN203632254U (en) | Automatic reactive compensation intelligent power distribution transformer | |
| CN104716628A (en) | Longitudinal differential protection current phase compensation method for YNd9 wiring transformer | |
| CN106058869B (en) | Pi-type hybrid flexible tuning device | |
| CN103731011B (en) | A kind of highly reliable constant current for highway remote power-feeding turns constant-voltage equipment | |
| CN205811548U (en) | A kind of capacitor device of series compensation | |
| CN205333839U (en) | Multistage reactive compensation system of 500kV voltage transformer check -up power | |
| CN203310941U (en) | Overvoltage test loop of power capacitor | |
| CN202260466U (en) | Low-voltage dynamic reactive power three-phase and single-phase mixed filtering compensation device | |
| CN102859824B (en) | For the apparatus and method of reactive power compensation | |
| CN205212425U (en) | Adjustable volume arc extinction device that dynamic reactive compensation adjusted | |
| CN204304447U (en) | Voltage reactive compensation device of submerged | |
| CN203502551U (en) | Circuit capable of testing overloading tolerance capability of capacitors connected in series | |
| CN203056981U (en) | Access control system power supply | |
| CN206331058U (en) | A kind of high voltage converter is fully loaded with micropower loss test apparatus and system | |
| CN209119821U (en) | A kind of Combined electric capacity compensation cabinet | |
| CN204391758U (en) | Transformer boost formula auto-reactive compensation equipment | |
| CN203883485U (en) | Coupling-typed thyristor controlled series compensation (TCSC) device | |
| CN205693364U (en) | A kind of pressure-controlled dynamic reactive compensation device | |
| CN103701136A (en) | Automatic reactive compensation intelligent power distribution transformer | |
| CN204144957U (en) | A kind of high pressure dynamic capacitance compensating device | |
| CN204666739U (en) | A kind of device adjustable transformer and compensator transformer being carried out simultaneously to temperature rise test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
|
| RJ01 | Rejection of invention patent application after publication |