CN203491912U - Power supply device of extra high voltage alternate current and direct current pollution tests - Google Patents
Power supply device of extra high voltage alternate current and direct current pollution tests Download PDFInfo
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- CN203491912U CN203491912U CN201320640694.6U CN201320640694U CN203491912U CN 203491912 U CN203491912 U CN 203491912U CN 201320640694 U CN201320640694 U CN 201320640694U CN 203491912 U CN203491912 U CN 203491912U
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Abstract
The utility model provides a power supply device of extra high voltage alternate current and direct current pollution tests. The power supply device includes an alternate current 10 kV power supply (1), a front stage 10 kV switch cabinet (2), a 10 kV voltage regulator (3), a thyristor control device (4), a rear stage 10 kV switch cabinet (5), an alternate current pollution test transformer (6), an alternate current protection resistor (7), an alternate current voltage distributor (8), a direct current single stage dual voltage rectification device (9), a direct current protection resistor (10), and a direct current voltage distributor (11) which are serially connected in sequence; and a leakage current testing device (13), a direct current measurement and display device (16), and a computer control device (14) which are serially connected in sequence. The power supply device is advantageous in that: 1) the power supply device which is a whole set, improves utilization rate and reduces investment; 2) the power supply device is small in voltage fluctuation when current leaks at a test product end; 3) the power supply part is large in capacity and small in resistance; and 4) the power supply device is capable of preventing personal injuries and achieving good safety performance.
Description
Technical field
The utility model belongs to electrical engineering technical field, relates to a kind of extra-high voltage alternating current-direct current pollution test supply unit.
Background technology
Because extra-high voltage alternating current-direct current power transmission engineering transmission distance is remote, pass through the area of Different climate, be often subject to the infringement of filth, icing, have a strong impact on the safe and stable operation of power transmission and transforming equipment.And extra-high voltage alternating current-direct current pollution test power supply is the capital equipment of the filthy pollution of research extra-high voltage alternating current-direct current and the freezing problem of icing, its electric pressure is high, and capacity is large, controls complicated.Still there is following defect in the alternating current-direct current testing equipment therefore using at present:
1), most of ac test place capacity is little, cannot meet the requirement of extra-high voltage experiment electric pressure, therefore also just can not carry out extra-high voltage alternating current-direct current pollution test;
2) though the constant current output requirement while having Partial DC testing equipment can meet direct current pollution test, because its electric pressure is inadequate, therefore can not be carried out extra-high voltage alternating current-direct current pollution test equally;
3), current ac test equipment and DC experiment equipment all can not completely use, and monomer extra-high-voltage alternating current equipment and monomer extra-high voltage direct-current equipment manufacturing cost are high, less economical.
Utility model content
The technical problems to be solved in the utility model is, for the disappearance that can meet at present the high-grade large capacity voltage unit power plant of extra-high-voltage alternating current pollution test and direct current pollution test simultaneously, design high, the capacious extra-high voltage alternating current-direct current pollution test of a kind of electric pressure supply unit, use this device can meet the various needs of extra-high voltage alternating current-direct current pollution test research, reduce equipment investment simultaneously, improve utilization rate of equipment and installations, significantly reduce costs.
The technical solution of the utility model is; referring to accompanying drawing 1; described extra-high voltage alternating current-direct current pollution test supply unit; as shown in Figure 1, it comprises leakage current measurement device 13, DC measurement display unit 16, the Computer Control Unit 14 of interchange 10kV power supply 1, prime 10kV switch cubicle 2,10kV voltage regulator 3, thyristor control device 4, rear class 10kV switch cubicle 5, interchange pollution test transformer 6, harmonics resistance 7, AC potentiometer 8, direct current single-stage voltage multiplying rectifier device 9, direct current protecting resistance 10, divider 11 and the series connection successively of series connection successively.
Wherein, described thyristor control device 4 suits isolating switch 17 by thyristor and thyristor groups 18 composes in parallel.Described thyristor suits isolating switch 17 and is connected the secondary of described 10kV voltage regulator 3 with one end of described thyristor groups 18 parallel connections, and the other end connects the input of described rear class 10kV switch cubicle 5;
Referring to accompanying drawing 2, described direct current single-stage voltage multiplying rectifier device 9 as shown in Figure 2, is connected to form by multiplication of voltage electric capacity 19, #2 silicon stack 20, filter capacitor 21 and #1 silicon stack 22.Wherein said multiplication of voltage electric capacity 19 one end are connected in series the high-pressure side of described AC potentiometer 8, the other end positive pole of described #2 silicon stack 20 in parallel and the negative pole of #1 silicon stack 22; The high-voltage output end of described filter capacitor 21 connects respectively the negative pole of described #2 silicon stack 20 and the input of described direct current protecting resistance 10; The low-pressure end of described series filtering electric capacity 21 is connected with the positive pole of described #1 silicon stack 22.
The input of prime 10kV switch cubicle 2 described in the output termination of above-mentioned interchange 10kV power supply 1; The former limit of 10kV voltage regulator 3 described in the output termination of described prime 10kV switch cubicle 2; Described in the output termination of described rear class 10kV switch cubicle 5, exchange the low-pressure side of pollution test transformer 6; The input of harmonics resistance 7 described in the high pressure side joint of described interchange pollution test transformer 6; The high-voltage terminal of AC potentiometer 8 described in the output termination of described harmonics resistance 7; The high-voltage terminal of divider 11 described in the output termination of described direct current protecting resistance 10; Another high-voltage terminal of described divider 11 connects the input of test specimen 12 while using; The input of described leakage current measurement device 13 connects the output of test specimen 12 while using; The signal output part of described leakage current measurement device 13 the be connected in parallel signal input part of described DC measurement display unit 16 and the signal input part of described Computer Control Unit 14; The output of this Computer Control Unit 14 is later connected with the control signal end of above-mentioned prime 10kV switch cubicle 2.
In addition, the signal output part of above-mentioned AC potentiometer 8 is also connected to an AC measurment display unit 15.This AC measurment display unit 15 is connected with the signal output part of AC potentiometer 8 by its signal input part; The signal input part of described DC measurement display unit 16 and the signal input part of described the Computer Control Unit 14 and signal output part of above-mentioned divider 11 is connected in parallel; Wherein, the signal input part of described Computer Control Unit 14 signal output part of thyristor groups 18 and the control signal end of above-mentioned rear class 10kV switch cubicle 5 of above-mentioned thyristor control device 4 that be also connected in parallel.
Operation principle of the present utility model is: while carrying out extra-high-voltage alternating current pollution test, only adopt AC potentiometer 8 and forward part circuit thereof, be AC potentiometer 8 with direct current single-stage voltage multiplying rectifier device 9 between be connected disconnection, AC potentiometer 8 connects test specimen 12, and direct current single-stage voltage multiplying rectifier device 9 and follow-up equipment do not participate in test.
Now, prime 10kV switch cubicle 2 and rear class 10kV switch cubicle 5 close a floodgate, and 10kV power supply 1 provides 10kV AC power to package unit; The thyristor of thyristor control device 4 suits isolating switch 17 closures, makes thyristor control device 4 short circuits, and thyristor control device 4 is not worked when exchanging pollution test; 10kV voltage regulator 3 zero raising voltages, test voltage boosts to setting test value through exchanging pollution test transformer 6, and by AC measurment display unit 15 viewing test magnitudes of voltage, executes the information such as alive time.When test specimen flashover, by harmonics resistance 7, carry out limiting short-circuit current, Computer Control Unit 14 makes rapidly rear class 10kV switch cubicle 5 and prime 10kV switch cubicle 2 separating brakes; cut off the electricity supply; weaken the impact of test specimen short circuit current to electrical network, meanwhile, 10kV voltage regulator 3 self-zeroings.
During extra-high voltage direct-current pollution test, package unit all devices all participates in work.The thyristor of thyristor control device 4 suits isolating switch 17 and disconnects, 4 work of thyristor control device.Prime 10kV switch cubicle 2 and rear class 10kV switch cubicle 5 close a floodgate, and 10kV power supply 1 provides 10kV AC power to package unit; 10kV voltage regulator 3 zero raising voltages, test voltage boosts through exchanging pollution test transformer 6, and by ac voltage rectifier, be direct voltage through direct current single-stage voltage multiplying rectifier device 9, simultaneously by voltage multiplication of voltage, by AC measurment display unit 15, observe AC test voltage value, execute the information such as alive time, by DC measurement display unit 16, observe DC side test voltage values, leakage current values and execute alive temporal information.When the leakage current of test specimen 12 increases suddenly, the test specimen side magnitude of voltage that the leakage current values that Computer Control Unit 14 provides according to leakage current measurement device 13 and divider 11 provide, adjust rapidly the thyristor angle of flow of thyristor control device 4, make package unit to test specimen, provide leakage current rapidly, reduce the voltage fluctuation of test specimen.When there is flashover in test specimen 12; by direct current protecting resistance 10 limiting short-circuit currents; Computer Control Unit 14 makes rapidly rear class 10kV switch cubicle 5 and prime 10kV switch cubicle 2 separating brakes; cut off the electricity supply; weaken the impact of test specimen short circuit current to electrical network; meanwhile, 10kV voltage regulator 3 self-zeroings, multiplication of voltage electric capacity 19 and filter capacitor 21 automatic dischargings.
The beneficial effects of the utility model are:
1), by extra-high voltage alternating current-direct current pollution test supply unit complete set, improved the utilance of equipment, reduced equipment investment, good economy performance;
2), extra-high voltage direct-current pollution test power acquisition thyristor control, the corresponding speed of package unit is fast, when there is larger leakage current in test specimen end, the voltage fluctuation of test specimen end is little, can meet the GB/T 22707-2008 < < direct current system promulgated by the ministries or commissions of the Central Government requirement to the pollution test of extra-high voltage equipment direct current with the artificial pollution test > > of high-tension insulator;
3), extra-high-voltage alternating current pollution test power unit capacity is large, impedance is little, can meet GB/T4585-2004 < < AC system promulgated by the ministries or commissions of the Central Government with in high-tension insulator artificial pollution test method > >, extra-high voltage equipment being exchanged the requirement of pollution test;
4), in the filthy experimentation of direct current, when flashover appears in test specimen, multiplication of voltage electric capacity and filter capacitor energy automatic discharging, prevent the person to damage, therefore fail safe is good.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a specific embodiment of the utility model extra-high voltage alternating current-direct current pollution test supply unit;
Fig. 2 is the structured flowchart of the voltage multiplying rectifier of direct current single-stage shown in Fig. 1 device.
Being denoted as in above Fig. 1～2:
1-interchange 10kV power supply,
2-prime 10kV switch cubicle,
3-10kV voltage regulator,
4-thyristor control device,
5-rear class 10kV switch cubicle,
6-interchange pollution test transformer,
7-harmonics resistance,
8-AC potentiometer,
9-direct current single-stage voltage multiplying rectifier device,
10-direct current protecting resistance,
11-divider,
12-test specimen,
13-testing device for current leakage,
14-Computer Control Unit,
15-AC measurment display unit,
16-DC measurement display unit,
17-thyristor suits isolating switch,
18-thyristor groups.
19-multiplication of voltage electric capacity,
20-#2 silicon stack,
21-filter capacitor,
22-#1 silicon stack.
Embodiment
Referring to accompanying drawing 1～2, wherein Figure 1 shows that a specific embodiment of the utility model extra-high voltage alternating current-direct current pollution test supply unit; Fig. 2 is the structured flowchart of the direct current single-stage voltage multiplying rectifier device of this embodiment.
Interchange 10kV power supply 1 in this embodiment is electric network source, and the short-circuit impedance value of its 10kV side is less than 1 ohm; The 10kV switch cubicle that the model that the prime 10kV switch cubicle 2 of this embodiment and rear class 10kV switch cubicle 5 all adopt Hunan China Yan Nengsen source Co., Ltd to produce is XGN2-12, rated voltage 12kV, rated current 630A, rated short circuit drop-out current is 16kA; The 10kV voltage regulator that the model that 10kV voltage regulator 3 adopts Shanghai Sang Pu Co., Ltd to produce is TYDZ-3200/10.5/0～10.5, rated capacity 3200kVA, former limit rated voltage 10.5kV, secondary output voltage 0～10.5kV;
The two-stage Cascade transformer that the model that interchange pollution test transformer 6 is produced for Jiangsu Province, China Lei Yu high voltage installation Co., Ltd is YDTW-3200/800, its low-pressure side rated voltage is 10kV, high-pressure side rated voltage is 500kV(subordinate)/800kV(two-stage series connection), rated capacity is 3200kVA; Harmonics resistance 7 is the BR-12 type 12k Ω resistance that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces; AC potentiometer 8 is also the YTC-800 type voltage divider that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces, rated voltage 800kV, 1 grade of certainty of measurement;
The direct current single-stage voltage multiplying rectifier complete sets of products that direct current single-stage voltage multiplying rectifier device 9 provides for Jiangsu Province, China Lei Yu high voltage installation Co., Ltd, the rated voltage of one of this product component multiplication of voltage electric capacity 19 is 600kV, capacitance is 2 μ F; The rated voltage of filter capacitor 21 is 1200kV, and capacitance is 1 μ F; #1 silicon stack 22 is consistent with #2 silicon stack 20 parameters, rated current 6A(mean value), specified peak-inverse voltage is not less than 2500kV;
Direct current protecting resistance 10 is the BZR-10 type 10k Ω resistance that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces; Divider 11 is the YTCZ-1200 type voltage divider that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces, rated voltage ± 1200kV, 3 grades of certainties of measurement; Leakage current measurement device 13 is the XCZ-1200 type bleeder current measurer that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces, and its measuring resistance resistance is 1 Ω; Computer Control Unit 14 is also the YD type computer control system that China produces for Leiyu High Voltage Equipment Co., Ltd., Jiangsu, the Zi Dong ∕ that uses this system can realize thyristor control device 4 manually controls, and realizes the manual step-down control of the control of Zi Dong ∕ manual voltage boosting and Zi Dong ∕; AC measurment display unit 15 and DC measurement display unit 16, all adopt the CX-1000 type that Jiangsu Province, China Lei Yu high voltage installation Co., Ltd produces to measure display instrument, its sampling rate 10k/s, can continuous two hour record test voltage current waveforms, measure current precision and reach 1mA.
Described interchange 10kV power supply 1, prime 10kV switch cubicle 2, 10kV voltage regulator 3, thyristor control device 4, rear class 10kV switch cubicle 5, exchange pollution test transformer 6, harmonics resistance 7, AC potentiometer 8, direct current single-stage voltage multiplying rectifier device 9, direct current protecting resistance 10, divider 11, leakage current measurement device 13, Computer Control Unit 14, AC measurment display unit 15, DC measurement display unit 16, thyristor suits isolating switch 17, thyristor groups 18, multiplication of voltage electric capacity 19, #2 silicon stack 20, filter capacitor 21 and #1 silicon stack 22 are by technique scheme, with reference to connected mode shown in accompanying drawing 1～2, connect.Wherein, it is in parallel with thyristor groups 18 that thyristor suits isolating switch 17, and one end connects the secondary of 10kV voltage regulator 3, and the other end connects the input of rear class 10kV switch cubicle 5; The high-pressure side of multiplication of voltage electric capacity 19 one end serial connection AC potentiometers 8, the positive pole of other end # 2 silicon stack 20 in parallel and the negative pole of #1 silicon stack 22; The high-voltage output end of filter capacitor 21 connects respectively the negative pole of described #2 silicon stack 20 and the input of direct current protecting resistance 10; The positive pole of the low pressure termination #1 silicon stack 22 of series filtering electric capacity 21.Exchange the input of the output termination prime 10kV switch cubicle 2 of 10kV power supply 1; The former limit of the output termination 10kV voltage regulator 3 of prime 10kV switch cubicle 2; The output termination of rear class 10kV switch cubicle 5 exchanges the low-pressure side of pollution test transformer 6; Exchange the input of the high pressure side joint harmonics resistance 7 of pollution test transformer 6; The high-voltage terminal of the output termination AC potentiometer 8 of harmonics resistance 7; The high-voltage terminal of the output termination divider 11 of direct current protecting resistance 10; The signal output part parallel connection direct of leakage current measurement device 13 is measured the signal input part of display unit 16 and the signal input part of Computer Control Unit 14; The control signal end of the output termination prime 10kV switch cubicle 2 of Computer Control Unit 14.The signal output part of AC potentiometer 8 connects the signal input part of AC measurment display unit 15; The signal output part parallel connection direct of divider 11 is measured the signal input part of display unit 16 and the signal input part of Computer Control Unit 14; The signal input part of Computer Control Unit 14 is the signal output part of parallel thyristors group 18 and the control signal end of rear class 10kV switch cubicle 5 also.
By the extra-high voltage alternating current-direct current pollution test supply unit of the present utility model forming above, through manufacturing experimently to try out, be proved to be respond well, reach designing requirement completely.In the present embodiment, drop into the test specimen 12 of experiment and selected the XWP-420 type glass insulator of DaLian, China electroceramics factory production, the parameter Jun Bei manufacturer approval that experimental result shows.
Claims (1)
1. an extra-high voltage alternating current-direct current pollution test supply unit, it is characterized in that, it comprises the interchange 10kV power supply (1) of series connection successively, prime 10kV switch cubicle (2), 10kV voltage regulator (3), thyristor control device (4), rear class 10kV switch cubicle (5), exchange pollution test transformer (6), harmonics resistance (7), AC potentiometer (8), direct current single-stage voltage multiplying rectifier device (9), direct current protecting resistance (10), divider (11) and the successively leakage current measurement device (13) of series connection, DC measurement display unit (16), Computer Control Unit (14), wherein, described thyristor control device (4) suits isolating switch (17) by thyristor and thyristor groups (18) composes in parallel, described thyristor suits isolating switch (17) and is connected the secondary of described 10kV voltage regulator (3) with described thyristor groups (18) one end in parallel, the other end connects the input of described rear class 10kV switch cubicle (5), described direct current single-stage voltage multiplying rectifier device (9) is connected to form by multiplication of voltage electric capacity (19), #2 silicon stack (20), filter capacitor (21) and #1 silicon stack (22), wherein said multiplication of voltage electric capacity (19) one end is connected in series the high-pressure side of described AC potentiometer (8), the positive pole of the other end described #2 silicon stack in parallel (20) and the negative pole of #1 silicon stack (22), the high-voltage output end of described filter capacitor (21) connects respectively the negative pole of described #2 silicon stack (20) and the input of described direct current protecting resistance (10), the low-pressure end of described series filtering electric capacity (21) is connected with the positive pole of described #1 silicon stack (22), the input of prime 10kV switch cubicle (2) described in the output termination of above-mentioned interchange 10kV power supply (1), the former limit of 10kV voltage regulator (3) described in the output termination of described prime 10kV switch cubicle (2), described in the output termination of described rear class 10kV switch cubicle (5), exchange the low-pressure side of pollution test transformer (6), the input of harmonics resistance (7) described in the high pressure side joint of described interchange pollution test transformer (6), the high-voltage terminal of AC potentiometer (8) described in the output termination of described harmonics resistance (7), the high-voltage terminal of divider (11) described in the output termination of described direct current protecting resistance (10), the signal output part of described leakage current measurement device (13) the be connected in parallel signal input part of described DC measurement display unit (16) and the signal input part of described Computer Control Unit (14), the output of this Computer Control Unit (14) is later connected with the control signal end of above-mentioned prime 10kV switch cubicle (2), in addition, the signal output part of above-mentioned AC potentiometer (8) is also connected to an AC measurment display unit (15), and this AC measurment display unit (15) is connected with the signal output part of AC potentiometer (8) by its signal input part, the signal input part of described DC measurement display unit (16) and the signal input part of described Computer Control Unit (14) and the signal output part of above-mentioned divider (11) is connected in parallel, wherein, the signal input part of described Computer Control Unit (14) signal output part of thyristor groups (18) and the control signal end of above-mentioned rear class 10kV switch cubicle (5) of above-mentioned thyristor control device (4) that be also connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640694.6U CN203491912U (en) | 2013-10-17 | 2013-10-17 | Power supply device of extra high voltage alternate current and direct current pollution tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640694.6U CN203491912U (en) | 2013-10-17 | 2013-10-17 | Power supply device of extra high voltage alternate current and direct current pollution tests |
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|---|---|
| CN203491912U true CN203491912U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320640694.6U Expired - Fee Related CN203491912U (en) | 2013-10-17 | 2013-10-17 | Power supply device of extra high voltage alternate current and direct current pollution tests |
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| CN (1) | CN203491912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490646A (en) * | 2013-10-17 | 2014-01-01 | 国家电网公司 | Ultrahigh-voltage alternating-current/direct-current pollution test power supply device |
| CN104502644A (en) * | 2014-12-12 | 2015-04-08 | 国家电网公司 | Ultrahigh-voltage direct-current voltage generator for pollution test |
-
2013
- 2013-10-17 CN CN201320640694.6U patent/CN203491912U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490646A (en) * | 2013-10-17 | 2014-01-01 | 国家电网公司 | Ultrahigh-voltage alternating-current/direct-current pollution test power supply device |
| CN104502644A (en) * | 2014-12-12 | 2015-04-08 | 国家电网公司 | Ultrahigh-voltage direct-current voltage generator for pollution test |
| CN104502644B (en) * | 2014-12-12 | 2018-08-14 | 中国电力科学研究院 | A kind of pollution test extra-high voltage direct-current voltage generator |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute Patentee after: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: SCIENCE RESEARCH INSTITUTE OF HUNAN ELECTRIC POWER Co.,Ltd. Patentee before: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE |
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