CN103176087B - Multi-voltage-class high-capacity test loop - Google Patents
Multi-voltage-class high-capacity test loop Download PDFInfo
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- CN103176087B CN103176087B CN201310081111.5A CN201310081111A CN103176087B CN 103176087 B CN103176087 B CN 103176087B CN 201310081111 A CN201310081111 A CN 201310081111A CN 103176087 B CN103176087 B CN 103176087B
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 230000003068 static effect Effects 0.000 claims abstract description 27
- 238000002474 experimental method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention discloses a multi-voltage-class high-capacity test loop which comprises a 10kV power source, a 35kV power source, a 10kV bus, a 35kV bus, a 20kV bus, a 10kV auxiliary bus, a static var generator SVG, a test bus and a 35kV main transformer. The 10kV power source is connected with the 10kV bus, the 35kV power source is connected with the 35kV bus, the 10kV bus is connected with the 35kV bus, the 35kV main transformer is respectively connected with the 35kV bus, the 20kV bus and the 10kV auxiliary bus, the 35kV bus is connected with the 20kV bus, the 20kV bus is connected with the 10kV auxiliary bus, the 10kV auxiliary bus is connected with the test bus, the test bus is connected with test samples, and the static var generator SVG is respectively connected with the 10kV bus and the 35kV main transformer. The multi-voltage-class high-capacity test loop can test samples with various voltage classes from 3kV to 35kV.
Description
Technical field
The present invention relates to a kind of high power laboratory loop of multi-voltage grade, belong to power test technical field.
Background technology
At present, general High power test station, directly provides power supply by transformer station, and electric pressure comprises 10kV, 35kV or higher, its voltage is non-adjustable, simultaneously owing to being subject to the restriction of power supply capacity, for the electric pressure that some are comparatively special, or the device that capacity is larger, as the parallel capacitor device of pure capacitive or perception, and anti-reactor device etc., be difficult to carry out effective test.
Summary of the invention
The object of the present invention is to provide a kind of high power laboratory loop of multi-voltage grade, by 10kV, 35kV two-way power supply, a 35kV main transformer (38.5 ± 8 × 1.25%/21/10.5), and the switching of plug-in strip, the test of multiple voltage grade devices test product such as can to realize from 3kV to 35kV.Meanwhile, for jumbo pure capacitive or perceptual test product, by the compensation of static reacance generator SVG, the Large Copacity device experiment under the capacity of small electric source can be realized.
In order to achieve the above object, technical scheme of the present invention is:
A high power laboratory loop for multi-voltage grade, comprises 10kV power supply, 35kV power supply, 10kV bus, 35kV bus, 20kV bus, the secondary mother of 10kV, static reacance generator SVG, test bus, 35kV main transformer; Wherein said 10kV power supply is connected with 10kV bus by circuit, is provided with 10kV power switch between 10kV power supply and 10kV bus; Described 35kV power supply is connected with 35kV bus by circuit, and is provided with 35kV power switch between 35kV power supply and 35kV bus; Described 10kV bus is connected with 35kV bus by circuit, and is provided with electrical source exchange plug-in strip between 10kV bus and 35kV bus; Described 35kV main transformer connects respectively by circuit and the secondary parent phase of 35kV bus, 20kV bus and 10kV, and main transformer 35kV plug-in strip is installed between 35kV main transformer and 35kV bus, main transformer 20kV plug-in strip is installed between 35kV main transformer and 20kV bus, main transformer 10kV plug-in strip is installed between 35kV main transformer and 10kV secondary mother; The secondary mother of described 10kV is connected with test bus by circuit, and is provided with test bus-tie circuit breaker between the secondary mother of 10kV and test bus; Described test bus is connected with test product by circuit; Described static reacance generator SVG is connected with 10kV bus, 35kV main transformer respectively by circuit, and is provided with 10kV bus plug-in strip between static reacance generator SVG and 10kV bus, is provided with SVG plug-in strip between static reacance generator SVG and 35kV main transformer.
The invention has the beneficial effects as follows: the high power laboratory loop of a kind of multi-voltage grade of the present invention, by 10kV, 35kV two-way power supply, a 35kV main transformer (38.5 ± 8 × 1.25%/21/10.5), and the switching of plug-in strip, the test of multiple voltage grade devices test product such as can to realize from 3kV to 35kV.Meanwhile, for jumbo pure capacitive or perceptual test product, by the compensation of static reacance generator SVG, the Large Copacity device experiment under the capacity of small electric source can be realized.Under normal circumstances, 10kV and above test product adopt 35kV power supply straightway testing or transformer pressure-reducing test, and electric pressure comprises 10kV, 20kV, 35kV etc.Below 10kV test product adopts 10kV power supply to test through transformer pressure-reducing, and electric pressure comprises 3kV, 5kV, 6kV etc.When 35kV power fail or maintenance, 10kV power supply can be adopted to test straightway testing or test through transformer boost, electric pressure comprises 10kV, 20kV, 35kV.Utilize static reacance generator SVG can inhale the feature sending out idle fast, when power supply capacity is inadequate, drop into static reacance generator SVG, compensate test product and export idle, greatly can improve capacity of experiment.
Accompanying drawing explanation
Fig. 1 is a schematic diagram in the high power laboratory loop of a kind of multi-voltage grade of the present invention;
Fig. 2 is the high power laboratory loop rough schematic view under different electric pressure test product of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, the high power laboratory loop of a kind of multi-voltage grade of the present embodiment, comprises 10kV power supply 1,35kV power supply 2,10kV bus 5,35kV bus 7,20kV bus 12, the secondary mother 16 of 10kV, static reacance generator SVG17, test bus 19,35kV main transformer 20; Wherein said 10kV power supply 1 is connected with 10kV bus 5 by circuit, is provided with 10kV power switch 3 between 10kV power supply 1 and 10kV bus 5; Described 35kV power supply 2 is connected with 35kV bus 7 by circuit, and is provided with 35kV power switch 4 between 35kV power supply 2 and 35kV bus 7; Described 10kV bus 5 is connected with 35kV bus 7 by circuit, and is provided with electrical source exchange plug-in strip 6 between 10kV bus 5 and 35kV bus 7; Described 35kV main transformer 20 is connected with 35kV bus 7,20kV bus 12 and 10kV secondary female 16 respectively by circuit, and main transformer 35kV plug-in strip 9 is installed between 35kV main transformer 20 and 35kV bus 7, be provided with between 35kV main transformer 20 and 20kV bus 12 between main transformer 20kV plug-in strip 11,35kV main transformer 20 and 10kV secondary female 16 and main transformer 10kV plug-in strip 14 is installed; Described 10kV secondary female 16 is connected with test bus 19 by circuit, and 10kV secondary female 16 and test to be provided with between bus 19 and test bus-tie circuit breaker 18; Described test bus 19 is connected with test product 21 by circuit; Described static reacance generator SVG17 is connected with 10kV bus 5,35kV main transformer 20 respectively by circuit, and 10kV bus plug-in strip 8 is installed between static reacance generator SVG17 and 10kV bus 5, SVG plug-in strip 13 is installed between static reacance generator SVG17 and 35kV main transformer 20.
Below in conjunction with Fig. 1, Fig. 2, under elaborating 10kV, 35kV two-way power supply, realized the test method of different electric pressure and Large Copacity test product by the switching of plug-in strip.
One, to 10kV and above test product, 35kV power supply 2 can be adopted to power, point 35kV power supply 2 directly power supply and 35kV power supply 2 is powered through transformer pressure-reducing.
1) 35kV power supply 2 is directly powered: the 35kV power switch 4 that closes, 35kV bus plug-in strip 10,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, and test bus 19 is charged, and voltage is 35kV, can carry out the test of 35kV electric pressure test product.
When employing 35kV power supply 2 is directly powered, close main transformer 35kV plug-in strip 9, SVG plug-in strip 13, and static reacance generator SVG17 hangs over 35kV main transformer 20 low-pressure side, exports idle for compensating test product 21, ensures that 35kV power supply 2 output capacity is less.
2) 35kV power supply 2 is powered through transformer pressure-reducing: the 35kV power switch 4 that closes, main transformer 35kV plug-in strip 9, main transformer 20kV plug-in strip 11,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, test bus 19 is charged, voltage is 20kV, can carry out the test of 20kV electric pressure test product.
Close 35kV power switch 4, main transformer 35kV plug-in strip 9, main transformer 10kV plug-in strip 14, test bus-tie circuit breaker 18, and test bus 19 is charged, and voltage is 10kV, can carry out the test of 10kV electric pressure test product.
When employing 35kV power supply 2 is powered through transformer pressure-reducing, close SVG plug-in strip 13, and static reacance generator SVG17 hangs over 35kV main transformer 20 low-pressure side, exports idle for compensating test product 21, ensures that 35kV power supply 2 output capacity is less.
Two, to below 10kV electric pressure test product, 10kV power supply 1 can be adopted to power through transformer pressure-reducing.
Close 10kV power switch 3, electrical source exchange plug-in strip 6, main transformer 35kV plug-in strip 9, main transformer 20kV plug-in strip 11,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, and test bus 19 is charged, and voltage is 6kV, can carry out the test of 6kV electric pressure test product.
Close 10kV power switch 3, electrical source exchange plug-in strip 6, main transformer 35kV plug-in strip 9, main transformer 10kV plug-in strip 14, test bus-tie circuit breaker 18, and test bus 19 is charged, and voltage is 3kV, can carry out the test of 3kV electric pressure test product.
Close 10kV power switch 3, electrical source exchange plug-in strip 6,35kV bus plug-in strip 10, main transformer 20kV plug-in strip 11, main transformer 10kV plug-in strip 14, test bus-tie circuit breaker 18, and test bus 19 is charged, and voltage is 5kV, can carry out the test of 5kV electric pressure test product.
When employing 10kV power supply 1 is powered through transformer pressure-reducing, close 10kV bus plug-in strip 8, and static reacance generator SVG17 hangs over 10kV bus 5, exports for compensating test product 21, ensures that 10kV power supply 1 output capacity is less.
Three, when 35kV power supply 2 is due to fault or maintenance, for 10kV and above test product, 10kV power supply 1 can be adopted to power, point 10kV power supply 1 directly power supply and 10kV power supply 1 is powered through transformer boost.
1) 10kV power supply 1 is directly powered, method one: the 10kV power switch 3 that closes, electrical source exchange plug-in strip 6,35kV bus plug-in strip 10,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, test bus 19 is charged, and voltage is 10kV, can carry out the test of 10kV electric pressure test product.Close 10kV bus plug-in strip 8, and static reacance generator SVG17 hangs over 10kV bus 5, exports idle for compensating test product 21, ensures that 10kV power supply 1 output capacity is less.
Method two: the 10kV power switch 3 that closes, 10kV bus plug-in strip 8, SVG plug-in strip 13, main transformer 10kV plug-in strip 14, test bus-tie circuit breaker 18, test bus 19 is charged, and voltage is 10kV, can carry out the test of 10kV electric pressure test product.Static reacance generator SVG17 hangs over 10kV bus 5, exports idle for compensating test product 21, ensures that 10kV power supply 1 output capacity is less.
2) 10kV power supply 1 is powered through transformer boost: the 10kV power switch 3 that closes, 10kV bus plug-in strip 8, SVG plug-in strip 13, main transformer 20kV plug-in strip 11,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, test bus 19 is charged, voltage is 20kV, can carry out the test of 20kV electric pressure test product.
Close 10kV power switch 3,10kV bus plug-in strip 8, SVG plug-in strip 13, main transformer 35kV plug-in strip 9,35kV bus plug-in strip 10,20kV bus plug-in strip 15, test bus-tie circuit breaker 18, test bus 19 is charged, voltage is 35kV, can carry out the test of 35kV electric pressure test product.
When employing 10kV power supply is powered through transformer boost, static reacance generator SVG17 hangs over 35kV main transformer 20 low-pressure side, exports for compensating test product 21, ensures that 35kV power supply 2 output capacity is less.
The high power laboratory loop of a kind of multi-voltage grade of the present embodiment, by 10kV, 35kV two-way power supply, a 35kV main transformer (38.5 ± 8 × 1.25%/21/10.5), and the switching of plug-in strip, the test of multiple voltage grade devices test product such as can to realize from 3kV to 35kV.Meanwhile, for jumbo pure capacitive or perceptual test product, by the compensation of static reacance generator SVG, the Large Copacity device experiment under the capacity of small electric source can be realized.Under normal circumstances, 10kV and above test product adopt 35kV power supply straightway testing or transformer pressure-reducing test, and electric pressure comprises 10kV, 20kV, 35kV etc.Below 10kV test product adopts 10kV power supply to test through transformer pressure-reducing, and electric pressure comprises 3kV, 5kV, 6kV etc.When 35kV power fail or maintenance, 10kV power supply can be adopted to test straightway testing or test through transformer boost, electric pressure comprises 10kV, 20kV, 35kV.Utilize static reacance generator SVG can inhale the feature sending out idle fast, when power supply capacity is inadequate, drop into static reacance generator SVG, compensate test product and export idle, greatly can improve capacity of experiment.
Claims (1)
1. a high power laboratory loop for multi-voltage grade, is characterized in that comprising 10kV power supply (1), 35kV power supply (2), 10kV bus (5), 35kV bus (7), 20kV bus (12), 10kV secondary female (16), static reacance generator SVG (17), test bus (19), 35kV main transformer (20); Wherein said 10kV power supply (1) is connected with 10kV bus (5) by circuit, is provided with 10kV power switch (3) between 10kV power supply (1) and 10kV bus (5); Described 35kV power supply (2) is connected with 35kV bus (7) by circuit, and is provided with 35kV power switch (4) between 35kV power supply (2) and 35kV bus (7); Described 10kV bus (5) is connected with 35kV bus (7) by circuit, and is provided with electrical source exchange plug-in strip (6) between 10kV bus (5) and 35kV bus (7); Described 35kV main transformer (20) is connected with 35kV bus (7), 20kV bus (12) and 10kV secondary female (16) respectively by circuit, and between 35kV main transformer (20) and 35kV bus (7), main transformer 35kV plug-in strip (9) is installed, main transformer 20kV plug-in strip (11) is installed between 35kV main transformer (20) and 20kV bus (12), between 35kV main transformer (20) and 10kV secondary female (16), main transformer 10kV plug-in strip (14) is installed; Described 10kV secondary female (16) is connected with test bus (19) by circuit, and the secondary mother (16) of 10kV and test to be provided with between bus (19) and test bus-tie circuit breaker (18); Described test bus (19) is connected with test product (21) by circuit; Described static reacance generator SVG (17) is connected with 10kV bus (5), 35kV main transformer (20) respectively by circuit, and between static reacance generator SVG (17) and 10kV bus (5), 10kV bus plug-in strip (8) is installed, SVG plug-in strip (13) is installed between static reacance generator SVG (17) and 35kV main transformer (20).
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JPH10301647A (en) * | 1997-04-30 | 1998-11-13 | Meidensha Corp | Power compensating device of electric furnace |
CN201440569U (en) * | 2009-04-28 | 2010-04-21 | 北京中煤电气有限公司 | Multi-voltage power supply whole-set device |
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