阅读说明：本技术 三相升压器 (Three-phase voltage booster ) 是由 何贵龙 王晶 管晋源 王小东 李贵吉 田晓青 韩东 冯建国 刘诗争 于 2019-08-22 设计创作，主要内容包括：本发明涉及电力检测设备技术领域,且公开了一种三相升压器,包括控制操作箱和升压变压器,所述控制操作箱与所述升压变压器之间连接有若干导线,所述升压变压器的接口通过导线连接有待测设备,所述控制操作箱调控所述升压变压器对所述待测设备的三相电流进行检测,并将检测数据进行展示,所所述控制操作箱包括：指示模块,用于接收所述升压变压器传递的电流信号。本发明提供的三相升压器,操作简单,容易上手,可以检测到整流器内部绝缘性能,提前做好预防,还可检测交直流电压表的好坏,及整流变压器连接整流器电缆线路,整流器连接直流开关柜线路是否准确无误,减少故障发生机率。(the invention relates to the technical field of power detection equipment, and discloses a three-phase booster which comprises a control operation box and a booster transformer, wherein a plurality of wires are connected between the control operation box and the booster transformer, an interface of the booster transformer is connected with equipment to be detected through the wires, the control operation box regulates and controls the booster transformer to detect three-phase current of the equipment to be detected and display detection data, and the control operation box comprises: and the indicating module is used for receiving the current signal transmitted by the boosting transformer. The three-phase booster provided by the invention is simple to operate and easy to operate, can detect the internal insulation performance of the rectifier, can be used for preventing in advance, and can also detect the quality of an alternating current-direct current voltmeter, and can reduce the fault occurrence probability by accurately detecting whether the rectifier transformer is connected with a rectifier cable line and the rectifier is connected with a direct current switch cabinet line.)

1. the utility model provides a three-phase booster, includes control operation case (1) and step-up transformer (2), its characterized in that, control operation case (1) with be connected with a plurality of wires between step-up transformer (2), the interface of step-up transformer (2) is through the wire connection equipment (3) that awaits measuring, control operation case (1) regulation and control step-up transformer (2) are to the three-phase current of equipment (3) that awaits measuring detects to show the testing data, control operation case (1) includes:

The indicating module (4) is used for receiving the current signal transmitted by the boosting transformer (2) and converting the current signal into a digital signal and a button optical signal for expression;

The protection module (5) is used for protecting the boosting transformer (2) from overload caused by abnormal current of the equipment to be tested (3);

And the boost regulating module (6) is used for regulating the boost and buck modes of the boost transformer (2).

2. The three-phase booster according to claim 1, wherein: the indicating module (4) comprises an input voltmeter, an output voltmeter, a current digital indicating meter, a closing indicating button, a power indicating lamp, an opening indicating button, a boosting indicating button and a voltage reducing indicating button, and the input voltmeter, the output voltmeter, the current digital indicating meter, the closing indicating button, the power indicating lamp, the opening indicating button, the boosting indicating button and the voltage reducing indicating button are coupled on the detection loop.

3. The three-phase booster according to claim 1, wherein: the protection module (5) comprises an overcurrent protection circuit, an overvoltage protection circuit, a short-circuit protection circuit, a zero protection circuit, a grounding protection circuit, a timing function, an alarm buzzer and a protection switch, wherein the overcurrent protection circuit, the overvoltage protection circuit, the short-circuit protection circuit, the zero protection circuit, the grounding protection circuit, the timing function, the alarm buzzer and the protection switch are all coupled on the detection circuit.

4. The three-phase booster according to claim 1, wherein: the boost regulating module (6) comprises a manual boost and an automatic boost, and the manual boost and the automatic boost are coupled on the detection loop.

5. the three-phase booster according to claim 1, wherein: the panel of the control operation box (1) is provided with three power interfaces, specifically a port A, a port B and a port C, and the panel of the control operation box (1) is provided with a power output port, specifically a port a, a port B and a port C.

Technical Field

the invention relates to the technical field of power detection equipment, in particular to a three-phase booster.

Background

The current direct current system primary detection is usually in a mode of applying 400V voltage on a primary side, the detection mode cannot effectively represent the running state of the rated voltage of an equipment body, the secondary detection mode is completed through a millivolt milliamp generator, the simulation primary data cannot completely represent the real data of a protection system, the running state of the equipment is easily misjudged under the condition, and the equipment is damaged or fails in power transmission.

The method detects the internal insulation performance of equipment such as a rectifier, a direct current switch cabinet and the like, takes precautions in advance, for example, the device damage, foreign matter entering, moisture, dust, metal wires, tools and the like cause the insulation performance reduction in the transportation process, detects the quality of an alternating current and direct current voltage transmitter and an alternating current and direct current transmitter, connects a rectifier transformer with a rectifier cable line, and reduces the fault occurrence probability by judging whether the rectifier is connected with the direct current switch cabinet line accurately or not.

Therefore, how to improve the inspection efficiency of the equipment before power transmission and timely acquire the real operation state information of the equipment so as to provide the success rate of one-time power transmission is expected to be well solved.

disclosure of Invention

solves the technical problem

The three-phase booster provided by the invention has the advantages that the inspection efficiency of the equipment before power transmission is improved, the real running state of the equipment is known, and the success rate of one-time power transmission is provided.

Technical scheme

In view of the above technical problems in the prior art, an embodiment of the present invention provides a three-phase booster, including a control operation box and a booster transformer, where a plurality of wires are connected between the control operation box and the booster transformer, an interface of the booster transformer is connected to a device to be tested through a wire, the control operation box regulates and controls the booster transformer to detect a three-phase current of the device to be tested, and displays detection data, and the control operation box includes:

the indicating module is used for receiving the current signal transmitted by the boosting transformer and converting the current signal into a digital signal and a button optical signal for expression;

The protection module is used for protecting the boosting transformer from overload caused by abnormal current of the equipment to be tested;

And the boosting adjusting module is used for adjusting the boosting and voltage reducing modes of the boosting transformer.

Preferably, the indication module includes an input voltmeter, an output voltmeter, a current digital indicator, a switch-on indicator, a power indicator, a switch-off indicator, a voltage-increasing indicator, and a voltage-decreasing indicator, and the input voltmeter, the output voltmeter, the current digital indicator, the switch-on indicator, the power indicator, the switch-off indicator, the voltage-increasing indicator, and the voltage-decreasing indicator are coupled to the detection circuit.

Preferably, the protection module comprises an overcurrent protection circuit, an overvoltage protection circuit, a short-circuit protection circuit, a zero protection circuit, a ground protection circuit, a timing function and alarm buzzer and a protection switch, and the overcurrent protection circuit, the overvoltage protection circuit, the short-circuit protection circuit, the zero protection circuit, the ground protection circuit, the timing function and alarm buzzer and the protection switch are all coupled to the detection circuit.

Preferably, the boost regulating module comprises a manual boost and an automatic boost, and the manual boost and the automatic boost are coupled on the detection loop.

preferably, three power interfaces are arranged on the panel of the control operation box, the three power interfaces are specifically a port a, a port B and a port C, and the panel of the control operation box is provided with a power output port, the power output port is specifically a port a, a port B and a port C

advantageous effects

Compared with the prior art, the three-phase booster provided by the embodiment of the invention has the advantages that the mechanical structure operation principle is reasonable, the operation is smooth, the panel instrument switch design is more humanized and reasonable, the operation is simple, the operation is easy to operate, a special power supply is provided for checking whether the static performance of circuit equipment of the subway traction rectifier unit can meet the specified requirements, the internal insulation performance of the rectifier can be detected, the prevention is made in advance, the quality of an alternating current-direct current voltmeter can be detected, the rectifier transformer is connected with a rectifier cable line, and the rectifier is connected with a direct current switch cabinet line accurately or not, so that the fault occurrence probability is reduced.

it is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic structural diagram of a control operation box according to the present invention;

FIG. 2 is a schematic block diagram of the present invention;

FIG. 3 is a schematic diagram of a protection module according to the present invention;

FIG. 4 is a schematic structural diagram of an indicating module according to the present invention;

FIG. 5 is a schematic diagram of a boost regulator module according to the present invention;

FIG. 6 is a schematic diagram of a detection circuit according to the present invention;

FIG. 7 is a schematic diagram of the power connection circuit of the control console panel of the present invention;

FIG. 8 is a schematic diagram of a current and overcurrent protection circuit according to the present invention;

FIG. 9 is a schematic diagram of a power input voltage measurement circuit according to the present invention;

FIG. 10 is a schematic diagram of an output voltage measurement circuit according to the present invention.

In the figure: 1. controlling the operation box; 2. a step-up transformer; 3. a device to be tested; 4. an indication module; 5. a protection module; 6. and a boost regulation module.

Detailed Description

So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 10, the present invention provides a three-phase booster including: control operation case 1 and step-up transformer 2, in the actual use, need to connect the wire between control operation case 1 and step-up transformer 2 earlier, then connect the wire between step-up transformer 2 and the equipment 3 that awaits measuring, connect on three-phase line voltage connects the three power connector on the control operation case 1 at last, then adjust step-up knob to the zero position, open equipment switch, open output switch, rotatory panel step-up knob, step-up transformer begins output voltage, through voltmeter and the ampere meter on the observation panel, adjust to required voltage position, observe whether the operation condition of the article under test is normal, observe whether equipment input output voltage is stable, observe whether the operation of the cabinet body panel voltmeter and the ampere meter of the cabinet body panel of the article under test is normal.

As shown in fig. 2, 3, 4, and 5, the control console box 1 includes:

And the indicating module 4 is used for receiving the current signal transmitted by the step-up transformer 2 and converting the current signal into a digital signal and a button optical signal for expression.

And the protection module 5 is used for protecting the boosting transformer 2 from overload caused by abnormal current of the equipment to be tested 3.

And the boosting adjusting module 6 is used for adjusting the boosting and voltage reducing modes of the boosting transformer 2.

Wherein, the indication module 4 comprises an input voltmeter, an output voltmeter, a current digital indicator, a closing indication button, a power indication button, a separating brake indication button, a boosting indication button, a voltage reduction indication button, and the protection module 5 comprises an overcurrent protection circuit, an overvoltage protection circuit, a short-circuit protection circuit, a zero protection circuit, a grounding protection circuit, a timing function and alarm buzzer, and a protection switch, and the boosting adjustment module 6 comprises a manual boosting and an automatic boosting, and then, referring to fig. 6, the input voltmeter, the output voltmeter, the current digital indicator, the closing indication button, the power indicator, the separating brake indication button, the boosting indication button, the voltage reduction indication button, the overcurrent protection circuit, the overvoltage protection circuit, the short-circuit protection circuit, the zero protection circuit, the grounding protection circuit, the timing function and alarm buzzer, the protection switch, The manual boosting and the automatic boosting are both coupled to a detection loop circuit of the control operation box 1.

Further referring to fig. 6, the detection circuit of the specific control console 1 is electrically connected to: the device is provided with a series circuit of an intermediate relay contact KA and an intermediate relay KA, nodes on two sides of the series circuit are coupled with a detection loop circuit, a current digital indicator PA1, an output voltmeter PV2, an input voltmeter PV1 and an intermediate relay contact KA1 and an intermediate relay contact KA2 are arranged on two pins on one side of a regulator on the parallel circuit respectively, a switch power supply, a power indicator HY1, PA1, PV1 and PV2 are coupled on the pin on the intermediate relay contact KA1, a parallel circuit of a lower limit switch T1 and an intermediate relay KA3 is arranged in the series circuit, a series circuit of a water meter box SBX and an intermediate relay KA4 is arranged, an intermediate relay contact KA3, a switch SB5, an intermediate relay contact KA5, a switch SB4, an intermediate relay contact KM1, an intermediate relay, a closing indicator button SB5 and a switching-off indicator button SB5 on the parallel circuit, The series circuit is provided with a series circuit of an intermediate relay contact KM1 and a closing indication button SB4, a series circuit of a silicon two-way switch SBS and a current digital indicator KSI, a series circuit of a signal relay KS1 and an alarm buzzer FM1, a switch SB6, an intermediate relay contact KM1, a series circuit of a current relay KA1 and a boosting indication button SB6 connected to a pin of the current relay KA1 in parallel, a switch SB7, a signal relay KS1, a current relay KA3, a current relay KA1, a current relay KA2 and a voltage reduction indication button SB 6.

In some specific embodiments, according to fig. 7, the panel of the control console box 1 is provided with a three-phase four-wire power input port A, B, C for connecting with an external three-phase power source 380V, and the panel of the control console box 1 is provided with power output ports a, b, c for inserting connection wires to connect with the step-up transformer 2, and then connecting the step-up transformer 2 with the device under test 3 through wires.

as shown in fig. 8, the current and overcurrent protection circuit of the present invention is configured such that after the control operation box 1, the step-up transformer 2 and the device to be tested 3 are installed, the power supply is turned on, and the current and overcurrent protection circuit protects the voltage regulator and the magnitude of the voltage regulator current, specifically, the voltage regulator a-phase current and protection, the voltage regulator B-phase current and protection, and the voltage regulator outputs the voltage of the C-phase current.

Referring to fig. 9, which shows a power input voltage measuring circuit according to the present invention, an output voltmeter PV2 represents and protects the amount of voltage flowing into transformer TB 1.

referring to fig. 10, a transformer TB1 is connected to an input voltmeter PV2, and represents and protects the amount of voltage flowing through transformer TB 1.

Therefore, the purposes that a special power supply is provided for detecting whether the static performance of circuit equipment of the subway traction rectifier unit can meet the specified requirements or not, the internal insulation performance of the rectifier can be detected, prevention is made in advance, for example, the device is damaged in the transportation process, the insulation performance is reduced due to the entry of foreign matters, moisture, dust, metal wires, tools and the like, the quality of an alternating current-direct current voltmeter can be detected, the rectifier transformer is connected with a rectifier cable line, whether the rectifier is connected with a direct current switch cabinet line or not is accurate, and the fault occurrence rate is reduced are achieved.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.