CN104535872A - Testing bench for detecting power distribution cabinets in multistage mode - Google Patents
Testing bench for detecting power distribution cabinets in multistage mode Download PDFInfo
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- CN104535872A CN104535872A CN201510018095.4A CN201510018095A CN104535872A CN 104535872 A CN104535872 A CN 104535872A CN 201510018095 A CN201510018095 A CN 201510018095A CN 104535872 A CN104535872 A CN 104535872A
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- power distribution
- distribution cabinet
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Abstract
The invention provides a testing bench for detecting power distribution cabinets in a multistage mode. The testing bench comprises a state grid unit, a power distribution cabinet sample, a motor, an excitation generator, a display control cabinet and an adjustable resistor device in a multi-stage distribution mode, wherein the output ends of the superior units are in series connection with the input ends of the subordinate units. The display control cabinet is provided with an excitation knob and a voltage and current display module, wherein the excitation knob is used for adjusting the magnitude of excitation current of the generator, and the voltage and current display module is used for displaying output voltage and current of the generator and output voltage and current of the power distribution cabinet sample. The adjustable resistor device is fixed to a bucket-shaped conducting solution container containing a conducting solution. The testing bench has the advantages that the testing bench can complete detection tests such as energization operation, variable load operation, secondary loop operation, current overload operation, earth leakage protection operation and reliability operation on the low-voltage power distribution cabinets, initial failures, random failures and loss failures of the low-voltage power distribution cabinets can be effectively reduced, and therefore the percentage of pass of the outgoing products can be guaranteed.
Description
Technical field
The invention belongs to the testing table field of power distribution cabinet sample quality inspection, especially relate to the testing table that a kind of multi-stag detects power distribution cabinet.
Background technology
Along with the development of distribution industry, the electric elements quality of power distribution cabinet, functional reliability, security, complete machine energising inspection, fictitious load run, measuring instrument runs and complete machine is examined or check serviceable life, receive more and more stricter requirement, most detecting instruments of present use are single function test bed and tester, as: switch cubicle energizing test platform, high pressure withstand voltage test stand and relay protection secondary circuit tester etc., these detection experiment equipment serve the effect of raising and stabilized product quality to a certain extent, but because test item is many, instrumentation is many, so, produce producer and seldom carry out product batches inspection and sampling observation, to fail-test and the operation of energising fictitious load of product, substantially do not carry out, detection experiment does in the existing testing laboratory that will arrive national counterpart, spend many, time-consuming reason of requiring great effort again, the reason of the detection experiment equipment having again producer oneself not to be correlated with, owing to lacking the important step detecting power distribution cabinet sample, the product quality of manufacturer production is difficult to ensure, the qualification rate height of product also cannot ensure, incipient failure during product is used, chance failure, spoilage malfunction, can only learn from user there, and producer self for the incipient failure of power distribution cabinet and the controlling extent of chance failure almost nil.
Innovation and creation content
The problem to be solved in the present invention is to provide a kind ofly can complete energising operation to low-voltage distribution cabinet, variable load runs, secondary circuit runs, current overload runs, earth leakage protection is run and the detection experiment such as reliability operation; the incipient failure of effective minimizing low-voltage distribution cabinet, chance failure and spoilage malfunction, the multi-stag of the product percent of pass that can ensure to dispatch from the factory detects the testing table of power distribution cabinet.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of multi-stag detects the testing table of power distribution cabinet, comprise the national grid unit of the multi-stag distribution being connected in series the input end of bottom-ranked unit by the output terminal of superordinate elements, power distribution cabinet sample, motor, generator, display and control cabinet and trimmable resistance device, described display and control is provided with the electric current and voltage display module of the output voltage electric current regulating the excitation knob of the exciting current size of described generator and the described generator of display and described power distribution cabinet sample cashier's office in a shop, described trimmable resistance device is fixed in barrel-shaped conduction liquid container, conduction liquid is contained with in described conduction liquid container.
Further, described trimmable resistance device comprises circular fixed head, with the motor of expansion link, insulation pallet and the pole plate be electrically connected with described display and control cabinet, described fixed head has fixed orifice, described conduction liquid container is covered with first lifting hole(eyelet) corresponding with the described fixed orifice of described fixed head, the top of the shell of described motor is fixedly connected on the middle part of described fixed head bottom end face, the bottom of the expansion link of described motor is fixedly connected on the middle part of described insulation pallet upper end, the upper surface of the described insulation pallet that installed surface is in the form of annular discs is provided with the fan-shaped connecting wing of equidistantly distribution, described connecting wing is provided with mounting hole, leg-of-mutton described pole plate is provided with the connecting hole corresponding with the described mounting hole of described connecting wing.
Further, the side end face of the radial vertical direction of described fixed head is hinged with four consistent fixing ears, the middle part of described fixing ear has through hole.
Further, described conduction liquid container on be covered with second lifting hole(eyelet) corresponding with the described through hole of described fixing ear.
Further, described pole plate is copper polar plate.
Further, the expansion link of described motor is hydraulically extensible bar.
Further, loopback electric wire is connected with in addition between described display and control cabinet and described national grid unit.
Further, on the outer wall of described conduction liquid container, the position corresponding with the described conduction liquid that inside holds is connected with the cooling system for cooling described conduction liquid.
Further, the NaCL strengthening electric conductivity is suitably mixed with in described conduction liquid.
The advantage that the present invention has and good effect are: adopt technique scheme, national grid unit, power distribution cabinet sample, motor, generator, display and control cabinet and trimmable resistance device that multi-stag electrical connection distributes, bottom-ranked unit is the load of superordinate elements and the power source of the bottom-ranked unit of self, there is multistage power, load in series system, manufacture simple, the advantages such as the low and noise of cost is little; After national grid unit connected by power distribution cabinet sample, the switch of closed power distribution cabinet sample, motor brings into operation, generator operates under the drive of motor, by the excitation knob of rotational display switch board, regulate exciting current to produce the total load needed for testing, change output voltage and the electric current of generator simultaneously.When voltage lower than national grid unit of the output voltage of generator, by the size of trimmable resistance device regulating load resistance, the pull-up resistor of trimmable resistance device immerses the increase of the degree of depth of conduction liquid in conduction liquid container and reduces with pole plate, thus meet the required pull-up resistor detecting power distribution cabinet sample, only need the immersion depth selecting pole plate according to the pull-up resistor of various test experience demand, the range of adjustment of trimmable resistance device is extensive flexibly, and absorbed power is large, when voltage higher than national grid unit of the output voltage of generator, can select to control generator by display and control cabinet and output electricity is transmitted back to national grid unit by loopback electric wire, contribute to low charcoal like this and run detection experiment, reduce energy and economic loss, strengthen the recycling of the energy, also can select to control by display and control cabinet the conduction liquid that is used in electric conduction of heating liquid container by the output electricity of generator, electric energy conversion is become heat energy, by cooling system, conduction liquid is cooled again, this process is exactly that the earth leakage protection detecting power distribution cabinet sample is run in fact, when the present invention runs, regulate the pull-up resistor of trimmable resistance device and the excitation knob of display and control cabinet to complete to run the energising of power distribution cabinet sample, variable load runs, secondary circuit runs, current overload runs, the detection experiment such as earth leakage protection operation and reliability operation, the electric current and voltage display module display generator of display and control cabinet and the output voltage electric current of power distribution cabinet sample, element and the power distribution cabinet sample complete machine that can observe power distribution cabinet sample self have non-fault, the incipient failure of effective minimizing low-voltage distribution cabinet, chance failure and spoilage malfunction, product percent of pass of dispatching from the factory can be ensured, by screw through mutually corresponding fixed orifice and the first lifting hole(eyelet), through hole and the second lifting hole(eyelet), just trimmable resistance device can be fixedly connected on conduction liquid container on cover, structure is simply, easy for installation, the electric conductivity of copper polar plate is good and heat that is that produce after energising is little, the expansion link of hydraulic pressure flexible more stable, the implementation capacity by Electric Machine Control is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of trimmable resistance device of the present invention;
Fig. 3 is the resistance curve schematic diagram of trimmable resistance device of the present invention.
In figure:
1, national grid unit; 2, power distribution cabinet sample; 3, motor;
4, generator; 5, display and control cabinet; 6, trimmable resistance device;
7, conduction liquid container; 8, conduction liquid; 9, cooling system;
10, loopback electric wire; 51, excitation knob; 52, electric current and voltage display module;
61, fixed head; 62, motor; 63, insulate pallet;
64, pole plate; 611, fixed orifice; 612, fixing ear;
613, through hole; 621, expansion link; 631, connecting wing;
632, mounting hole; 641, connecting hole.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
As Fig. 1, 2, shown in 3, the invention provides the testing table that a kind of multi-stag detects power distribution cabinet, comprise the national grid unit 1 of the multi-stag distribution being connected in series the input end of bottom-ranked unit by the output terminal of superordinate elements, power distribution cabinet sample 2, motor 3, generator 4, display and control cabinet 5 and trimmable resistance device 6, described display and control cabinet 5 is provided with the electric current and voltage display module 52 of the output voltage electric current of excitation the knob 51 and described generator 4 of display and the described power distribution cabinet sample 2 regulating the exciting current size of described generator 4, described trimmable resistance device 6 is fixed in barrel-shaped conduction liquid container 7, conduction liquid 8 is contained with in described conduction liquid container 7.
Described trimmable resistance device 6 comprises circular fixed head 61, motor 62 with expansion link 621, insulation pallet 63 and the pole plate 64 be electrically connected with described display and control cabinet 5, described fixed head 61 has fixed orifice 611, described conduction liquid container 7 is covered with first lifting hole(eyelet) corresponding with the described fixed orifice 611 of described fixed head 61, the top of the shell of described motor 62 is fixedly connected on the middle part of described fixed head 61 bottom end face, the bottom of the expansion link 621 of described motor 62 is fixedly connected on the middle part of described insulation pallet 63 upper end, the upper surface of the described insulation pallet 63 that installed surface is in the form of annular discs is provided with the fan-shaped connecting wing 631 of equidistantly distribution, described connecting wing 631 is provided with mounting hole 632, leg-of-mutton described pole plate 64 is provided with the connecting hole 641 corresponding with the described mounting hole 632 of described connecting wing 631.
The side end face of the radial vertical direction of described fixed head 61 is hinged with four consistent fixing ears 612, the middle part of described fixing ear 612 has through hole 613.
Described conduction liquid container 7 is covered with second lifting hole(eyelet) corresponding with the described through hole 613 of described fixing ear 612.
Described pole plate 64 is copper polar plate.
The expansion link 621 of described motor 62 is hydraulically extensible bar.
Loopback electric wire 10 is connected with in addition between described display and control cabinet 5 and described national grid unit 1.
Position corresponding with the described conduction liquid 8 that inside holds on the outer wall of described conduction liquid container 7 is connected with the cooling system 9 for cooling described conduction liquid 8.
The NaCL strengthening electric conductivity is suitably mixed with in described conduction liquid 8.
The course of work of this example: use screw through mutually corresponding fixed orifice 611 and the first lifting hole(eyelet), the through hole 613 of corresponding fixing ear 612 and the second lifting hole(eyelet), just trimmable resistance device 6 can be fixedly connected on conduction liquid container 7 on cover, by mounting hole 632 screw fastening of the connecting hole 641 of pole plate 64 with the connecting wing 631 of insulation pallet 63, namely complete the installation of trimmable resistance device 6; By national grid unit 1, power distribution cabinet sample 2, motor 3, generator 4, display and control cabinet 5 and trimmable resistance device 6, carry out the multi-stag distribution of the input end of the output terminal series connection bottom-ranked unit from superordinate elements, detection experiment can be carried out to power distribution cabinet sample.
Current overloading test: the resistance curve according to Fig. 3, the pole plate 54 of adjustment trimmable resistance device 6 immerses the degree of depth in conduction liquid 8, the ohmic load of trimmable resistance device 6 is made to be in higher value needed for detection experiment, simultaneously, regulate the excitation knob 51 of display and control cabinet 5, the exciting current of generator 4 is made also to be adjusted to higher value, again the switch of power distribution cabinet sample 2 is closed, motor 3 starts to start, utilize the big current starting characteristic of motor 3, examined or check the current overload ability of power distribution cabinet sample 2 by the electric current and voltage display module 52 of display and control cabinet 5.
Reliability operation is tested: the resistance curve according to Fig. 3, by regulating the immersion depth of pole plate 64, make the ohmic load of trimmable resistance device 6 be in less load value or be zero, the switch of power distribution cabinet sample 2 is closed, motor 3 brings into operation, regulate the excitation knob 51 of display and control cabinet 5, make the exciting current adjustment of generator 4 to higher value, overall load is increased, when the voltage of generator 4 reaches loopback national grid unit 1 magnitude of voltage, cut off the ohmic load of trimmable resistance device 6, to national grid unit 1 loopback electric energy, according to the electric current and voltage display module 52 of display and control cabinet 5, the exciting current size of regulator generator 4, change generated energy and working time, thus determine the operational reliability of power distribution cabinet sample 2.
The pull-up resistor of adjustment trimmable resistance device 6 and the excitation knob 51 of display and control cabinet 5 can complete the detection experiment such as energising operation, variable load operation, secondary circuit operation to power distribution cabinet sample 2.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (9)
1. the testing table of a multi-stag detection power distribution cabinet, it is characterized in that: the national grid unit comprising the multi-stag distribution being connected in series the input end of bottom-ranked unit by the output terminal of superordinate elements, power distribution cabinet sample, motor, generator, display and control cabinet and trimmable resistance device, described display and control is provided with the electric current and voltage display module of the output voltage electric current regulating the excitation knob of the exciting current size of described generator and the described generator of display and described power distribution cabinet sample cashier's office in a shop, described trimmable resistance device is fixed in barrel-shaped conduction liquid container, conduction liquid is contained with in described conduction liquid container.
2. multi-stag according to claim 1 detects the testing table of power distribution cabinet, it is characterized in that: described trimmable resistance device comprises circular fixed head, with the motor of expansion link, insulation pallet and the pole plate be electrically connected with described display and control cabinet, described fixed head has fixed orifice, described conduction liquid container is covered with first lifting hole(eyelet) corresponding with the described fixed orifice of described fixed head, the top of the shell of described motor is fixedly connected on the middle part of described fixed head bottom end face, the bottom of the expansion link of described motor is fixedly connected on the middle part of described insulation pallet upper end, the upper surface of the described insulation pallet that installed surface is in the form of annular discs is provided with the fan-shaped connecting wing of equidistantly distribution, described connecting wing is provided with mounting hole, leg-of-mutton described pole plate is provided with the connecting hole corresponding with the described mounting hole of described connecting wing.
3. multi-stag according to claim 2 detects the testing table of power distribution cabinet, it is characterized in that: the side end face of the radial vertical direction of described fixed head is hinged with four consistent fixing ears, the middle part of described fixing ear has through hole.
4. multi-stag according to claim 3 detects the testing table of power distribution cabinet, it is characterized in that: described conduction liquid container is covered with second lifting hole(eyelet) corresponding with the described through hole of described fixing ear.
5. multi-stag according to claim 2 detects the testing table of power distribution cabinet, it is characterized in that: described pole plate is copper polar plate.
6. multi-stag according to claim 2 detects the testing table of power distribution cabinet, it is characterized in that: the expansion link of described motor is hydraulically extensible bar.
7. multi-stag according to claim 1 detects the testing table of power distribution cabinet, it is characterized in that: be connected with loopback electric wire in addition between described display and control cabinet and described national grid unit.
8. multi-stag according to claim 1 detects the testing table of power distribution cabinet, it is characterized in that: position corresponding with the described conduction liquid that inside holds on the outer wall of described conduction liquid container is connected with the cooling system for cooling described conduction liquid.
9. multi-stag according to claim 1 detects the testing table of power distribution cabinet, it is characterized in that: be suitably mixed with the NaCL strengthening electric conductivity in described conduction liquid.
Priority Applications (1)
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CN201510018095.4A CN104535872B (en) | 2015-01-14 | 2015-01-14 | A kind of multi-stag detects the testing stand of power distribution cabinet |
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CN201510018095.4A CN104535872B (en) | 2015-01-14 | 2015-01-14 | A kind of multi-stag detects the testing stand of power distribution cabinet |
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CN104535872A true CN104535872A (en) | 2015-04-22 |
CN104535872B CN104535872B (en) | 2017-09-26 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105976679A (en) * | 2016-06-30 | 2016-09-28 | 武汉华育诺为信息技术有限公司 | Power distribution training device, power distribution training remote control system and corresponding methods thereof |
CN106324401A (en) * | 2016-08-24 | 2017-01-11 | 广西小草信息产业有限责任公司 | Power distribution cabinet test system and corresponding test method |
CN106781816A (en) * | 2017-04-05 | 2017-05-31 | 武汉华育诺为信息技术有限公司 | Distribution actual training device and tele-control system |
CN107015088A (en) * | 2017-05-22 | 2017-08-04 | 天津市津廊宏业工程机械液压设备有限公司 | Power distribution cabinet detection means and detection method are used on a kind of production line |
CN109973579A (en) * | 2019-04-22 | 2019-07-05 | 安徽工程大学 | MR elastomer vibration isolator |
CN115327285A (en) * | 2022-10-17 | 2022-11-11 | 山东天鲲电力科技有限公司 | Power distribution cabinet delivery power performance inspection system |
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GB2387451A (en) * | 2002-03-01 | 2003-10-15 | Rittal Gmbh & Co Kg | Switchgear cabinet monitoring and control system |
CN201332377Y (en) * | 2008-12-12 | 2009-10-21 | 青岛四方车辆研究所有限公司 | Inductor passenger carriage generator distribution box |
CN202094709U (en) * | 2011-06-28 | 2011-12-28 | 北京易投嘉德投资咨询有限公司 | Monitoring device for power distribution cabinet |
CN102684220A (en) * | 2012-05-02 | 2012-09-19 | 武汉理工大学 | Marine photovoltaic power generation grid-connected experimental platform |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105976679A (en) * | 2016-06-30 | 2016-09-28 | 武汉华育诺为信息技术有限公司 | Power distribution training device, power distribution training remote control system and corresponding methods thereof |
CN106324401A (en) * | 2016-08-24 | 2017-01-11 | 广西小草信息产业有限责任公司 | Power distribution cabinet test system and corresponding test method |
CN106781816A (en) * | 2017-04-05 | 2017-05-31 | 武汉华育诺为信息技术有限公司 | Distribution actual training device and tele-control system |
CN107015088A (en) * | 2017-05-22 | 2017-08-04 | 天津市津廊宏业工程机械液压设备有限公司 | Power distribution cabinet detection means and detection method are used on a kind of production line |
CN109973579A (en) * | 2019-04-22 | 2019-07-05 | 安徽工程大学 | MR elastomer vibration isolator |
CN115327285A (en) * | 2022-10-17 | 2022-11-11 | 山东天鲲电力科技有限公司 | Power distribution cabinet delivery power performance inspection system |
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