CN205333839U - Multistage reactive compensation system of 500kV voltage transformer check -up power - Google Patents
Multistage reactive compensation system of 500kV voltage transformer check -up power Download PDFInfo
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- CN205333839U CN205333839U CN201521039120.9U CN201521039120U CN205333839U CN 205333839 U CN205333839 U CN 205333839U CN 201521039120 U CN201521039120 U CN 201521039120U CN 205333839 U CN205333839 U CN 205333839U
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Abstract
The utility model discloses a multistage reactive compensation system of 500kV voltage transformer check -up power, including pressure regulating control source, three winding stepup transformers, multistage reactive power compensator and remote control ware, the output and the input of three winding stepup transformers of pressure regulating control source are connected, the first output of three winding stepup transformers is the standard voltage transformer in the 500kV voltage transformer error checking return circuit respectively and is tried voltage transformer provide voltage, the second output of three winding stepup transformers is parallelly connected with multistage reactive power compensator. The utility model discloses the compensation requirement in most 500kV voltage transformer error checking return circuits can be satisfied, the capacity demand to power supply and pressure regulating control source is reduced, it is especially adapted in 500kV voltage transformer's on -the -spot check -up.
Description
Technical field
This utility model relates to a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply, belongs to transformer test technical field。
Background technology
500kV voltage transformer is divided in GIS voltage transformer, independent electromagnetic potential transformer, capacitance type potential transformer (CVT), for 500kVGIS formula voltage transformer, the GIS pipeline of different length, corresponding different distributions electric capacity, different 500kV capacitance type potential transformer capacitances is likely to difference, when 500kV voltage transformer being carried out error checking according to " JJG1021-2007 " regulatory requirements, need to boost to rated voltage 110% reaches 320kV, test voltage is high, capacitive component is big, and required experiment power supply capacity is big。It is generally adopted and boosts in testing transformer mode, the method becoming outfan parallel high voltage mutual reactor (by the reactor connection in series-parallel of different size) in test produces to close the capacity current in voltage transformer error verification loop in inductance current, reduces power supply capacity。Uncertainty because of the capacitance that verification loop need to compensate, it is necessary to realize different compensation dosages 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, wasting time and energy, inefficiency, and the potential safety hazard that the reactor existence set up is dropped, during REgulatable reactor onsite application, noise is big。
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply。
In order to achieve the above object, this utility model be the technical scheme is that
A kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply, including Regulation Control power supply, three winding booster, multistage reactive power compensator and remote controllers；The outfan of described Regulation Control power supply is connected with the input of three winding booster, standard potential transformer and tested voltage transformer in first outfan of described three winding booster respectively 500kV voltage transformer error verification loop provide voltage, and the second outfan of described three winding booster 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 mainly made up of four groups of reactor parallel connections, and often group reactor 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 booster the first outfan output voltage is 0～350kV, and the second outfan 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 this utility model reaches: 1, this utility model 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；2, this utility model can control multistage reactive power compensator selection compensation way by remote controllers, on-the-spot without carrying combination reactor, improves compensation efficiency。
Accompanying drawing explanation
Fig. 1 is this utility model schematic diagram。
Fig. 2 is appearance assumption diagram of the present utility model。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described。Following example are only for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this。
As it is shown in figure 1, a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply, including Regulation Control power supply, three winding booster, multistage reactive power compensator and remote controllers。The outfan of Regulation Control power supply is connected with the input (i.e. ax end in figure) of three winding booster, standard potential transformer and tested voltage transformer in first outfan (i.e. A1X1 end in figure) the respectively 500kV voltage transformer error verification loop of three winding booster provide voltage, and second outfan (i.e. A2X2 end in figure) of three winding booster 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 booster the first outfan output voltage is 0～350kV, and the second outfan output voltage is 0～10kV。
Multistage reactive power compensator is mainly made up of four groups of reactor parallel connections, and often group reactor is also in series with switch, by controlling switch and the Guan Bi of switch, realize the adjustment of multistage reactive power compensator inductance value, here reactor adopts constant reactance device, and mechanical regulates controlled variable, and during use, noise is little。Specifically as shown in FIG., four groups of reactor respectively L1, L2, L3 and L4, four groups switch 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 compensation capacitance 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 capacitance compensated less than 350pF, when entirely being disconnected by remote controllers control and compensation amount K1, K2, K3, K4,0pF compensation dosage is put into；
2) when system needs the capacitance compensated more than or equal to 350pF less than or equal to 700pF, controlling K1 Guan Bi by remote controllers, K2, K3, K4 disconnect entirely, put into 700pF compensation dosage；
3) when system needs the capacitance compensated more than 700pF less than or equal to 1400pF, control K2 Guan Bi by remote controllers, when K1, K3, K4 disconnect entirely, put into 1400pF compensation dosage；
4) when system needs the capacitance compensated more than 1400pF less than or equal to 2100pF, control K1, K2 Guan Bi by remote controllers, when K3, K4 disconnect entirely, put into 2100pF compensation dosage；
5) when system needs the capacitance compensated more than 2100pF less than or equal to 2800pF, control K3 Guan Bi by remote controllers, when K1, K2, K4 disconnect entirely, put into 2800pF compensation dosage；
6) when system needs the capacitance compensated more than 2800pF less than or equal to 3400pF, control K1, K3 Guan Bi by remote controllers, when K2, K4 disconnect entirely, put into 3400pF compensation dosage；
7) when system needs the capacitance compensated more than 3400pF less than or equal to 4200pF, control K2, K3 Guan Bi by remote controllers, when K1, K4 disconnect entirely, put into 4200pF compensation dosage；
8) when system needs the capacitance compensated more than 4200pF less than or equal to 4900pF, control K1, K2, K3 Guan Bi by remote controllers, when K4 disconnects entirely, put into 4900pF compensation dosage；
9) when system needs the capacitance compensated more than 4900pF less than or equal to 5600pF, control K4 Guan Bi by remote controllers, when K1, K2, K3 disconnect entirely, put into 5600pF compensation dosage；
10) when system needs the capacitance compensated more than 5600pF less than or equal to 6300pF, control K1, K4 Guan Bi by remote controllers, when K2, K3 disconnect entirely, put into 6300pF compensation dosage；
11) when system needs the capacitance compensated more than 6300pF less than or equal to 7000pF, control K2, K4 Guan Bi by remote controllers, when K1, K3 disconnect entirely, put into 7000pF compensation dosage；
12) when system needs the capacitance compensated more than 7000pF less than or equal to 7700pF, control K1, K2, K4 Guan Bi by remote controllers, when K1, K3 disconnect entirely, put into 7700pF compensation dosage；
13) when system needs the capacitance compensated more than 7700pF less than or equal to 8400pF, control K3, K4 Guan Bi by remote controllers, when K1, K2 disconnect, put into 8400pF compensation dosage；
14) when system needs the capacitance compensated more than 8400pF less than or equal to 9100pF, control K1, K3, K4 Guan Bi by remote controllers, when K2 disconnects, put into 9100pF compensation dosage；
15) when system need compensate capacitance more than 9100pF less than or equal to 9800pF or equal to time, by remote controllers K2, K3, K4 close, when K1, K2 disconnect entirely, compensation dosage is 9800pF；
16) when system needs the capacitance compensated more than 9800pF less than or equal to 10500pF, being closed by remote controllers K1, K2, K3, K4, when K1, K2 disconnect entirely, compensation dosage is 10500pF。
As shown in Figure 2, the appearance assumption diagram of system, figure includes Regulation Control case 1, three winding booster 2 and standard potential transformer 3, Regulation Control case 1, three winding booster 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-range control, Regulation Control case is connected with remote controllers, here it is generally adopted cable to connect, remote controllers can monitor the input voltage of error checking, output voltage, output electric current and power factor, according to display situation, select the multistage reactive power compensator of switching, until reaching optimum power factor。This control multistage reactive power compensator by remote controllers and select compensation way, on-the-spot without 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。
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the premise without departing from this utility model know-why; can also making some improvement and deformation, these improve and deformation also should be regarded as protection domain of the present utility model。
Claims (6)
1. the 500kV multistage reactive compensation system of voltage transformer verifying power supply, it is characterised in that: include Regulation Control power supply, three winding booster, multistage reactive power compensator and remote controllers；
The outfan of described Regulation Control power supply is connected with the input of three winding booster, standard potential transformer and tested voltage transformer in first outfan of described three winding booster respectively 500kV voltage transformer error verification loop provide voltage, and the second outfan of described three winding booster is in parallel with multistage reactive power compensator。
2. a kind of 500kV multistage reactive compensation system of voltage transformer 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. a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply according to claim 2, it is characterised in that: described multistage reactive power compensator is mainly made up of four groups of reactor parallel connections, and often group reactor is also in series with switch。
4. a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply according to claim 3, it is characterised in that: described reactor is constant reactance device。
5. a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply according to claim 1, it is characterised in that: the input voltage of described Regulation Control power supply is 0～380V, output voltage 0～400V；Three winding booster the first outfan output voltage is 0～350kV, and the second outfan output voltage is 0～10kV。
6. a kind of 500kV multistage reactive compensation system of voltage transformer verifying power supply according to claim 1-5 any one, it is characterised in that: described multistage reactive power compensator is arranged in Regulation Control case, and described Regulation Control case is connected with remote controllers。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521039120.9U CN205333839U (en) | 2015-12-15 | 2015-12-15 | Multistage reactive compensation system of 500kV voltage transformer check -up power |
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| CN201521039120.9U CN205333839U (en) | 2015-12-15 | 2015-12-15 | Multistage reactive compensation system of 500kV voltage transformer check -up power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372618A (en) * | 2015-12-15 | 2016-03-02 | 国家电网公司 | 500kV voltage transformer check power source multi-stage reactive power compensation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372618A (en) * | 2015-12-15 | 2016-03-02 | 国家电网公司 | 500kV voltage transformer check power source multi-stage reactive power compensation system |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: Electric Power Research Institute of State Grid Anhui Electric Power Company Patentee after: State Grid Corporation of China Co-patentee after: Wuhan pan electric Polytron Technologies Inc Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: Electric Power Research Institute of State Grid Anhui Electric Power Company Patentee before: State Grid Corporation of China Co-patentee before: Wuhan Pandian Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |