CN211014478U - Debugging checkout stand of unbalanced three-phase treatment device - Google Patents
Debugging checkout stand of unbalanced three-phase treatment device Download PDFInfo
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- CN211014478U CN211014478U CN201920696994.3U CN201920696994U CN211014478U CN 211014478 U CN211014478 U CN 211014478U CN 201920696994 U CN201920696994 U CN 201920696994U CN 211014478 U CN211014478 U CN 211014478U
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Abstract
The utility model provides a debugging and inspecting platform of a three-phase unbalance treatment device, which comprises a three-phase leakage protector, an ammeter, a current transformer, a MCU, a three-phase unbalance treatment device, a fixed load and an intelligent switch; three-phase leakage protector is arranged on the three-phase four-wire power transmission line A, B, C, N respectively, the three-phase leakage protector is connected with an ammeter, current flows to a current transformer through the ammeter, the current transformer is connected with an MCU and a three-phase imbalance treatment device respectively, and the current flows to an intelligent switch and a fixed load through the three-phase imbalance treatment device. The utility model overcomes required heavy load electric current, load current of commutation switch are difficult to adjust, can't simulate drawback such as true power consumption environment completely under the commutation condition, and whole operation process is simple, safe, nimble, can true reduction power consumption environment, is applicable to and detects various commutation switch type unbalanced three phase and administers the product.
Description
Technical Field
The utility model relates to a distribution technical field, especially a debugging checkout stand of unbalanced three phase treatment device.
Background
In the daily operation management of power distribution networks, both line loss and power quality are one of the most concerned problems for the power sector and consumers today. In production and domestic power consumption, a large number of single-phase, asymmetric, nonlinear and impact loads exist, so that three phases of a power distribution system are unbalanced, the performances and service lives of equipment and facilities such as a distribution transformer and a transformer area line are seriously affected, and even the transformer is burnt.
In the prior art, three-phase imbalance treatment products are already available to solve the problems, but most three-phase imbalance treatment products need to be subjected to commutation debugging and inspection when leaving a factory, the commutation debugging and inspection cannot meet the requirement of outputting different loads, particularly, the adjustment is carried out under a large load, and unsafe factors such as operation of equipment and operators can exist in a laboratory and a generation process. In order to ensure that unqualified products do not flow out due to equipment and artificial faults and protect the safety of people and equipment, and to standardize reasonable power consumption, a debugging table of the three-phase imbalance treatment device is urgently needed to debug the three-phase imbalance treatment device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an unbalanced three phase administers debugging checkout stand of device aims at solving the big load demand that the experimental environment can't satisfy the unbalanced three phase and administers the device when the debugging among the prior art, realizes debugging and inspection the unbalanced three phase administers the product in the laboratory environment.
In order to achieve the technical purpose, the utility model provides an unbalanced three phase administers debugging checkout stand of device, the debugging checkout stand includes:
the three-phase leakage protection device comprises a three-phase leakage protection device, an ammeter, a current transformer, an MCU (microprogrammed control unit), a three-phase imbalance treatment device, a fixed load and an intelligent switch;
three-phase leakage protector is arranged on the three-phase four-wire power transmission line A, B, C, N respectively, the three-phase leakage protector is connected with an ammeter, current flows to a current transformer through the ammeter, the current transformer is connected with an MCU and a three-phase imbalance treatment device respectively, and the current flows to an intelligent switch and a fixed load through the three-phase imbalance treatment device.
Preferably, the three-phase unbalance treatment device is a phase change switch.
Preferably, the MCU communicates with the commutation switch through a wireless communication interface and issues a control instruction to the commutation switch.
Preferably, the debugging checkout stand also comprises a variable load for regulating the output power and simulating the load in the actual power utilization environment.
Preferably, the three-phase leakage protector is used for preventing an open circuit phenomenon caused by internal faults of the variable load and a leakage and short circuit phenomenon caused by manual operation.
Preferably, the fixed load is a light bulb.
The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:
compared with the prior art, the utility model provides a unbalanced three phase administers debugging checkout stand's of device design, utilize digital electronic technology, simulation electronic circuit and computer technology, adopt the multistage protection, set up arbitrary adjustment load current in a flexible way, the required heavy load current of commutation switch under the commutation condition has been overcome, load current is difficult to adjust, can't completely simulate drawbacks such as true power consumption environment, whole operation process is simple, safety, it is nimble, can really restore the power consumption environment, be applicable to and detect the unbalanced three phase of various commutation switch types and administer the product, it is brand-new, can satisfy the ideal check-out test equipment that many commutation switches detected simultaneously. It has the following functional characteristics:
the load current can be adjusted by a manual switch or background software;
the special protection device is used, the operation process is simple and safe, and the impact of a large load on other equipment in the phase change process can be prevented;
the three-phase imbalance treatment effect can be checked at any time by the aid of the measuring instrument;
the commutation control can automatically adjust the test and can also carry out the joint debugging test through the platform software;
and current correction and verification of the commutation switch can be optionally matched.
Drawings
Fig. 1 is a schematic block diagram of a debugging and inspecting table device of a three-phase imbalance management device provided in an embodiment of the present invention;
fig. 2 is a background software interface diagram of a debugging and inspecting platform of the unbalanced three-phase treatment device provided in the embodiment of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.
The following describes in detail the debugging and inspecting stand of the unbalanced three-phase treatment device provided by the embodiment of the present invention with reference to the accompanying drawings.
As shown in FIG. 1, the embodiment of the utility model discloses unbalanced three phase administers debugging checkout stand of device, the debugging checkout stand includes:
the three-phase leakage protection circuit comprises a three-phase leakage protection circuit, an ammeter, a current transformer, an MCU (microprogrammed control unit), a phase change switch, a fixed load and an intelligent switch;
the three-phase leakage protector is arranged on the three-phase four-wire system power transmission line A, B, C, N respectively, the three-phase leakage protector is connected with an ammeter, current flows to a current transformer through the ammeter, the current transformer is connected with an MCU and a phase change switch respectively, and the current flows to an intelligent switch and a fixed load through the phase change switch.
The current transformer converts A, B, C three-phase current into low current, and the MCU collects the low current converted by the current transformer in real time and calculates the unbalance degree of the three-phase current. The phase change switch is connected into a line according to an A, B, C, N three-phase four-wire system, one of the arbitrary A, B, C is selected to control a fixed load through output, and the fixed load is a bulb. And the MCU and the commutation switch carry out data interaction in a wireless communication mode, and the MCU automatically sends out a commutation instruction to control the commutation switch to carry out commutation operation according to the calculated unbalance degree.
The MCU is provided with a spare 485 interface and a network interface and can be communicated with an upper computer, the wireless communication interface is communicated with the commutation switch, the MCU issues a control instruction and controls the commutation switch to execute commutation operation according to a specified commutation flow, and single-phase load commutation is realized, so that three-phase load balanced distribution of a power distribution station area is realized.
In addition, a variable load is added for adjusting the load of the output power, and the load is gradually increased or decreased in order to simulate the actual power utilization environment.
The three-phase leakage protection is used for ensuring the electricity utilization safety and preventing the circuit breaking phenomenon caused by the internal fault of the adjustable load and the leakage and short circuit phenomenon caused by manual operation.
The load is very large because the rated current of the commutation switch is 120A. Thus, when testing 120A for high currents, a large load is required, which is not easily found in a laboratory environment, which, if present, is very dangerous during operation, requiring many added safeguards, and the laboratory wiring requires many modifications. For the convenience deliver electric power company and fully accept under experimental environment, the utility model discloses a A, B, C three-phase carries the little load of certain quantity respectively, utilizes the magnification of host computer software setting MCU and commutation switch, if the two enlargies 100 times in step, gathers the electric current that is less than 1.2A usually and can test, the inside wiring overall arrangement of the device, according to actual electric wire netting mounting means design, consequently need not the heavy load and can test actual site environment, safe reassurance and effect are obvious.
The embodiment of the utility model provides a three-phase current that the fluctuation of some looks actual load leads to is uneven in the testable electric wire netting of debugging checkout stand, for example, A phase current risees suddenly, can be manual or through the connecting switch of host computer software automatically regulated variable load or fixed load, produces the unbalance in current degree phenomenon, then tests the inside commutation control strategy of MCU, verifies actual adjustment effect. As shown in fig. 2, by randomly inputting the three-phase current, the number of the commutation switches, the unbalance degree and the commutation switch current in the software and then clicking the commutation button, the whole device can automatically control the commutation switch to carry out commutation, so as to achieve the purpose of testing whether the commutation strategy is reliable and effective, realize one-key test and achieve the purpose of convenient and flexible operation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a debugging checkout stand of unbalanced three phase treatment device which characterized in that, the debugging checkout stand includes:
the three-phase leakage protection device comprises a three-phase leakage protection device, an ammeter, a current transformer, an MCU (microprogrammed control unit), a three-phase imbalance treatment device, a fixed load and an intelligent switch;
three-phase leakage protector is arranged on the three-phase four-wire power transmission line A, B, C, N respectively, the three-phase leakage protector is connected with an ammeter, current flows to a current transformer through the ammeter, the current transformer is connected with an MCU and a three-phase imbalance treatment device respectively, and the current flows to an intelligent switch and a fixed load through the three-phase imbalance treatment device.
2. The debugging checkout stand of a three-phase imbalance management device of claim 1, wherein the three-phase imbalance management device is a commutation switch.
3. The debugging and inspecting stand of a three-phase imbalance treatment device according to claim 2, wherein the MCU communicates with the commutation switch through a wireless communication interface and issues a control command to the commutation switch.
4. The debugging platform of claim 2, wherein said debugging platform further comprises a variable load for adjusting output power and simulating load in actual power environment.
5. The debugging and testing bench of a three-phase unbalance management device as claimed in claim 4, wherein said three-phase leakage protection is used to prevent the open circuit phenomenon caused by the internal fault of the variable load and the leakage and short circuit phenomenon caused by human operation.
6. The debugging platform of a three-phase imbalance management device according to any one of claims 1 to 5, wherein the fixed load is a light bulb.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920696994.3U CN211014478U (en) | 2019-05-15 | 2019-05-15 | Debugging checkout stand of unbalanced three-phase treatment device |
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| CN201920696994.3U CN211014478U (en) | 2019-05-15 | 2019-05-15 | Debugging checkout stand of unbalanced three-phase treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031714A (en) * | 2019-05-15 | 2019-07-19 | 中电装备山东电子有限公司 | A kind of the bug check platform and bug check method of three-phase imbalance controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031714A (en) * | 2019-05-15 | 2019-07-19 | 中电装备山东电子有限公司 | A kind of the bug check platform and bug check method of three-phase imbalance controlling device |
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