CN204649860U - A kind of multifunctional high pressure fuse device for detecting performance - Google Patents
A kind of multifunctional high pressure fuse device for detecting performance Download PDFInfo
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- CN204649860U CN204649860U CN201520283646.5U CN201520283646U CN204649860U CN 204649860 U CN204649860 U CN 204649860U CN 201520283646 U CN201520283646 U CN 201520283646U CN 204649860 U CN204649860 U CN 204649860U
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Abstract
A kind of multifunctional high pressure fuse device for detecting performance, comprises AC constant-current source module (1), rectification module (2), filtration module (3), inversion module (4), filtration module (5), laminating module (6), AC output module (7), direct current output module (8), accessory power supply (9), driving power (10), control circuit (11), display translation module (12), detects and feedback module (13).The utility model reasonable in design, simple, by laminating module, the electric current of different frequency is superposed dexterously, more can reflect that distribution network systems mesohigh fuse immerses the frequent fusing phenomenon caused due to harmonic current truly.
Description
Technical field
The utility model relates to high-tension fuse Performance Detection experimental technique field.
Background technology
In actual moving process, often there is the fault of high-voltage insurance fusing in the voltage transformer (VT) in power distribution network, causes voltage transformer secondary side decompression, and residual voltage is abnormal to be raised.Like this, will cause electric energy metering error, or cause system false grounding alarm, zero-sequence voltage protection relay misoperation is done, and causes operations staff to take the treatment measures of mistake, expansion accident scope.On the other hand, the replacing of TV high-voltage insurance comparatively bothers, and increases manpower and materials spending.Above-mentioned situation is all unfavorable for safe, reliable, stable, the economical operation of power distribution network, needs improvement badly.
Ferro-resonance over-voltage is the internal overvoltage of the not direct ground connection distribution network system of a kind of common neutral point, comprises Subharmonic Resonance, fundamental resonance and high-frequency resonant, along with the every relatively capacitive reactance of system
x cincrease, high-frequency resonant, fundamental resonance, Subharmonic Resonance may be there is successively, cause distribution superpotential and PT excess current, make weak insulator arrangement generation flashover and PT High-voltage Fuse Blow, even damage PT, serious threat power distribution network safety.Therefore, need, by the volt-ampere characteristic of a kind of pick-up unit simulation PT high-tension fuse under harmonic environment, to improve the quality of fuse, prevent high-tension fuse from frequently fusing.
Summary of the invention
The purpose of this utility model is to provide a kind of multifunctional high pressure fuse device for detecting performance, to reflect the volt-ampere characteristic of high-tension fuse under different harmonic wave truly, solves the problem that distribution high-tension fuse frequently fuses.
For achieving the above object, the technical scheme provided is as follows for the utility model:
A kind of multifunctional high pressure fuse device for detecting performance, comprises AC constant-current source module, rectification module, filtration module, inversion module, filtration module, laminating module, AC output module, direct current output module, accessory power supply, driving power, control circuit, display translation module, detection and feedback module, described AC constant-current source module is connected with rectification module, rectification module connects with filtration module, filtration module connects with direct current output module and inversion module respectively, inversion module connects with filtration module, filtration module connects with laminating module, laminating module is connected with AC output module again, the power supply that accessory power supply is directly inputted by outside obtains, accessory power supply is connected with driving power again, driving power is controlled by control circuit, control circuit is also connected with AC constant-current source module, display and control module are connected with control circuit, detection and feedback module signal are obtained by AC output module and direct current output module, be connected with control circuit again.
Described AC constant-current source module output current scope is chosen according to the fusing current of actual institute survey fuse and the range of current of required research.Described laminating module can export not through the sinusoidal waveform of superposition, also can export the clutter through different frequency addition of waveforms.
Reasonable in design of the present utility model, simple, by laminating module, the electric current of different frequency is superposed dexterously, more can reflect that distribution network systems mesohigh fuse immerses the frequent fusing phenomenon caused due to harmonic current truly.The utility model utilizes rectification and inversion transformation technique to obtain the electric current of 0 ~ 300HZ, the clutter of simulation distribution low frequency saturation current, resonance current is exported by electric current laminating module, significant to the volt-ampere characteristic of true reflection isolated neutral system high-tension fuse in different harmonic environment, selection, the product control of the isolated neutral system fuse simultaneously frequently fused for fuse have vital role.
Accompanying drawing explanation
Fig. 1 is the apparatus structure principle schematic in the utility model;
Fig. 2 is pick-up unit control panel plane of the present utility model and measure loop figure.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to Fig. 1, the utility model embodiment provides a kind of multifunctional high pressure fuse device for detecting performance, and it comprises AC constant-current source module 1, rectification module 2, filtration module 3, inversion module 4, filtration module 5, laminating module 6, AC output module 7, direct current output module 8, accessory power supply 9, driving power 10, control circuit 11, display translation module 12, detect and feedback module 13, described AC constant-current source module 1 is connected with rectification module 2, rectification module 2 connects with filtration module 3, filtration module 3 connects with direct current output module 8 and inversion module 4 respectively, inversion module 4 connects with filtration module 5, filtration module 5 connects with laminating module 6, laminating module 6 is connected with AC output module 7 again, the power supply that accessory power supply 9 is directly inputted by outside obtains, accessory power supply 9 is connected with driving power 10 again, driving power 10 is controlled by control circuit 11, control circuit 11 is also connected with AC constant-current source module 1, display and control module 12 are connected with control circuit 11, and detection and feedback module 13 signal are obtained by AC output module 7 and direct current output module 8, then are connected with control circuit 11.
With reference to Fig. 2, be device panel schematic diagram in the rectangle frame of the left side.The function of each button and screen is as follows: 14 is power supply input switch, 15 is frequency display screen curtain, 16 is voltage display screen, 17 for electric current system be screen, 18 switches exported for direct current, 19 is the stop button of direct current, the 20 voltage-regulation knobs exported for direct current, 21 current adjusting knobs exported for direct current, 22 for exchanging the frequency trim knob exported, can the size of regulating frequency arbitrarily in certain frequency range, 23 for exchanging the fixed frequency adjusting knob exported, the size of switching frequency between fixing frequency, 24 for exchanging the start button exported, 25 for exchanging the scram button exported, 26 for superposing the fixed frequency adjusting knob of passage 1, 27 for superposing the fixed frequency adjusting knob of passage 2, 28 exchange the voltage-regulation knob exported, 29 export as positive wave is also through the selection knob of the clutter of superposition for exchanging, 30 for superposing the fixed frequency adjusting knob of passage 3, 31 for exchanging the current adjusting knob exported.Be tested fuse and the situation exchanging output channel and be connected shown in Fig. 2, fuse also can be connected to direct current output channel and export impact for fuse performance to test direct current.
The utility model puts on the power frequency at fuse two ends from 0 ~ 300H
zcan regulate arbitrarily, the electric current of less than 3 kinds different frequencies can be superposed arbitrarily according to demand; The different frequency superimposed current exported by laminating module, more can recover the resonance current flowing through fuse when transient flow is crossed the low frequency saturation current of high-tension fuse and ferroresonance occurs by real simulation 6.3kV ~ 35kV isolated neutral system generation single-phase earthing.
The announcement of book and embodiment and guidance according to the above description; person skilled in the relevant technique; do not departing under ambit of the present utility model; various amendment or modification can also be carried out to above-mentioned embodiment; adopt structure same or analogous with it and obtain other constant current alternator, all within the utility model protection domain.
Claims (3)
1. a multifunctional high pressure fuse device for detecting performance, it is characterized in that, comprise AC constant-current source module (1), rectification module (2), filtration module (3), inversion module (4), filtration module (5), laminating module (6), AC output module (7), direct current output module (8), accessory power supply (9), driving power (10), control circuit (11), display translation module (12), detect and feedback module (13), described AC constant-current source module (1) is connected with rectification module (2), rectification module (2) connects with filtration module (3), filtration module (3) connects with direct current output module (8) and inversion module (4) respectively, inversion module (4) connects with filtration module (5), filtration module (5) connects with laminating module (6), laminating module (6) is connected with AC output module (7) again, the power supply that accessory power supply (9) is directly inputted by outside obtains, accessory power supply (9) is connected with driving power (10) again, driving power (10) is controlled by control circuit (11), control circuit (11) is also connected with AC constant-current source module (1), display and control module (12) are connected with control circuit (11), detection and feedback module (13) signal are obtained by AC output module (7) and direct current output module (8), be connected with control circuit (11) again.
2. a kind of multifunctional high pressure fuse device for detecting performance according to claim 1, is characterized in that, described AC constant-current source module (1) output current scope is chosen according to the fusing current of actual institute survey fuse and the range of current of required research.
3. a kind of multifunctional high pressure fuse device for detecting performance according to claim 1, is characterized in that, described laminating module (6) can export not through the sinusoidal waveform of superposition, also can export the clutter through different frequency addition of waveforms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520283646.5U CN204649860U (en) | 2015-05-05 | 2015-05-05 | A kind of multifunctional high pressure fuse device for detecting performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520283646.5U CN204649860U (en) | 2015-05-05 | 2015-05-05 | A kind of multifunctional high pressure fuse device for detecting performance |
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| CN204649860U true CN204649860U (en) | 2015-09-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351376A (en) * | 2015-07-20 | 2018-07-31 | 伊顿智能动力有限公司 | electric fuse current sensing system and monitoring method |
| CN112583281A (en) * | 2020-11-27 | 2021-03-30 | 江西宁鸿电子技术有限公司 | AC voltage-regulating power supply |
| CN115078993A (en) * | 2022-06-14 | 2022-09-20 | 山东威纳电气有限公司 | High-voltage motor insulation detection system and method with insulation early warning function |
-
2015
- 2015-05-05 CN CN201520283646.5U patent/CN204649860U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351376A (en) * | 2015-07-20 | 2018-07-31 | 伊顿智能动力有限公司 | electric fuse current sensing system and monitoring method |
| CN108351376B (en) * | 2015-07-20 | 2020-09-08 | 伊顿智能动力有限公司 | Electrical fuse current sensing system and monitoring method |
| CN112583281A (en) * | 2020-11-27 | 2021-03-30 | 江西宁鸿电子技术有限公司 | AC voltage-regulating power supply |
| CN115078993A (en) * | 2022-06-14 | 2022-09-20 | 山东威纳电气有限公司 | High-voltage motor insulation detection system and method with insulation early warning function |
| CN115078993B (en) * | 2022-06-14 | 2023-02-10 | 山东威纳电气有限公司 | High-voltage motor insulation detection system and method with insulation early warning function |
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