CN204832390U - Electric power detecting system - Google Patents

Abstract

The utility model provides a power detection system, which relates to the field of equipment detection. The power detection system includes a power distribution transmission device, a current detection device and a signal processing device. The voltage of the line can be transmitted to the electrical equipment, the current detection device is connected with the power distribution transmission device to detect the current signal of the grid line, and the signal processing device is respectively connected with the current detection device and the power distribution transmission device, when the current detection device detects When the current signal exceeds the preset threshold, the power distribution and transmission device is controlled to cut off the power transmission of the grid line to the electric equipment. The power detection system provided by the utility model can effectively monitor the faults in the power grid lines, and can automatically recover after the faults are eliminated, without the need for on-site operations by staff, which improves work efficiency, reduces operating costs, and reduces the need for work. threat to the personal safety of personnel.

Description

A power detection system

technical field

The utility model relates to the field of equipment detection, in particular to an electric power detection system.

Background technique

During the use of the power system, there will often be some faults (such as leakage), which will lead to accidents and cause loss of personnel and property. Therefore, real-time monitoring of the power grid line is required to ensure its safe operation. At present, the existing monitoring methods are relatively simple and require manual control by the staff, the work efficiency is low, and it is easy to cause injury to the staff themselves.

Utility model content

The purpose of this utility model is to provide a power detection system so that the above problems can be improved.

The power detection system provided by the utility model includes a power distribution and transmission device, a current detection device and a signal processing device. On the electrical equipment, the current detection device is connected to the power distribution and transmission device to detect the current signal of the grid line, and the signal processing device is respectively connected to the current detection device and the power distribution and transmission device , when the current signal detected by the current detection device exceeds a preset threshold, the power distribution and transmission device is controlled to cut off the power transmission of the power grid line to the electric equipment.

Further, the power detection system further includes a fault detection device, which is respectively connected to the power distribution transmission device and the signal processing device, and the fault detection device is used for when the power grid line is stopped. During circuit transmission of electrical equipment, a detection signal is sent to the grid line through the power distribution and transmission device.

When the current signal detected by the current detection device exceeds the preset threshold, the power distribution and transmission device will be controlled to cut off the power transmission of the power grid line to the electric equipment, and the fault detection device will sense the occurrence of this situation After that, a detection signal is sent to the grid line, so that the current detection device can continue to detect the current signal in the grid line. The detection signal sent by the fault detection device is used to simulate the normal working state of the grid line. If the fault still exists, the current signal caused by the detection signal will still exceed the preset threshold. The detection signal sent by the fault detection device continues until the current signal detected by the current detection device returns to the preset threshold value, which means that the fault of the grid line has been eliminated and the normal state has been restored. At this time, the fault detection device stops sending detection signals, and the signal processing device controls the power distribution and transmission device to resume the power transmission of the grid lines to the electric equipment.

Further, the power detection system also includes a communication device connected to the signal processing device, and the communication device is used to send the current signal value and the judgment result received by the signal processing device and to the Control instructions for signal processing devices.

The communication device can send out the real-time status of the power grid line, so that the staff can check the situation of the power grid line conveniently at any time, and even make a judgment in advance. At the same time, the control instruction to the signal processing device can also be accepted, that is, when there is no failure, or the staff judges that a failure may occur, the power distribution and transmission device can also be controlled to cut off the power consumption of the grid line. The power transmission of the equipment ensures the safety of the power system.

Further, the communication device is a wireless communication device, and the power detection system further includes a remote control device and a data display device, the remote control device is wirelessly connected to the wireless communication device, and the data display device is connected to the remote The control device is connected, the data display device displays the current signal value and the judgment result received by the remote control device, and the remote control device generates corresponding control instructions for the signal processing device according to user operations.

The staff can observe the use of the power grid lines very intuitively through the data display device, and at the same time, it is very convenient to realize remote control through the remote control device, without going to the site to operate in person, which not only improves the work efficiency, but also makes the staff safety is guaranteed.

The remote control device can be a computer, or other intelligent mobile terminals, such as the staff's mobile phone, etc., which makes it more convenient for the staff to use.

Further, the current detection device includes a current transformer.

In the lines of power generation, power transformation, power transmission, power distribution and power consumption, the current size varies greatly, ranging from a few amps to tens of thousands of amps. In order to facilitate measurement, protection and control, it needs to be converted into a relatively uniform current. In addition, the voltage on the line is generally relatively high, so direct measurement is very dangerous. The current transformer plays the role of current conversion and electrical isolation. The current signal of the power grid line can be detected very conveniently by using the current transformer.

Further, the current detection device includes a current detection chip.

The current detection chip can also effectively detect the current signal of the grid line, and even convert the current signal into a corresponding digital signal to facilitate subsequent judgment work.

Further, the signal processing device includes a single-chip microcomputer chip.

The single-chip microcomputer chip has very good signal processing capabilities, can quickly and accurately judge the current signal of the power grid line, and feed back the corresponding judgment result.

The power detection system provided by the utility model can effectively monitor the faults in the power grid lines, and can automatically recover after the faults are eliminated. threat to the personal safety of personnel.

In order to make the above-mentioned purpose, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.

Description of drawings

Fig. 1 is a schematic structural diagram of a power detection system provided by the first embodiment of the utility model;

Fig. 2 is a schematic structural diagram of a power detection system provided by the second embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a power detection system provided by a third embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solution in the embodiment of the utility model in combination with the drawings in the embodiment of the utility model.

As shown in Figure 1, the power detection system provided by the first embodiment of the present invention includes a power distribution and transmission device 101, a current detection device 102 and a signal processing device 103,

The power distribution transmission device 101 is respectively connected to an external power grid line 104 and an electric device 105, so that the voltage of the power grid line 104 can be transmitted to the electric device 105, and the current detection device 102 is connected to the power distribution device 105. The transmission device 101 is connected to detect the current signal of the grid line 104, and the signal processing device 103 is respectively connected to the current detection device 102 and the power distribution transmission device 101. When the current detection device 102 detects When the current signal exceeds a preset threshold, the power distribution and transmission device 101 is controlled to cut off the power transmission from the grid line 104 to the power consumption equipment 105 .

The power detection system provided by the utility model can effectively monitor the faults in the power grid line 104, and can automatically recover after the faults are eliminated. Threats to the personal safety of staff.

As shown in Figure 2, the power detection system provided by the second embodiment of the utility model includes a power distribution and transmission device 101, a current detection device 102 and a signal processing device 103, and the power distribution and transmission device 101 is respectively connected to External power grid lines 104 and power consumption equipment 105, so that the voltage of the power grid line 104 can be transmitted to the power consumption equipment 105, and the current detection device 102 is connected with the power distribution transmission device 101 to detect the The current signal of the grid line 104, the signal processing device 103 is respectively connected to the current detection device 102 and the power distribution transmission device 101, when the current signal detected by the current detection device 102 exceeds a preset threshold , control the power distribution and transmission device 101 to cut off the power transmission from the power grid line 104 to the electric equipment 105 .

Further, the power detection system also includes a fault detection device 106, which is respectively connected to the power distribution transmission device 101 and the signal processing device 103, and the fault detection device 106 is used for When the grid line 104 stops the circuit transmission to the electric equipment 105 , a detection signal is sent to the grid line 104 through the power distribution transmission device 101 .

When the current signal detected by the current detection device 102 exceeds the preset threshold, the power distribution and transmission device 101 will be controlled to cut off the power transmission from the power grid line 104 to the electrical equipment 105, and the fault detection device 106 will sense the After this situation occurs, a detection signal is sent to the grid line 104 , so that the current detection device 102 can continue to detect the current signal in the grid line 104 . The detection signal sent by the fault detection device 106 is used to simulate the normal working state of the grid line 104. If the fault still exists, the current signal caused by the detection signal will still exceed the preset threshold. The fault detection device 106 continues to send detection signals until the current signal detected by the current detection device 102 returns to the preset threshold, which means that the fault of the grid line 104 has been eliminated and the normal state has been restored. At this time, the fault detection device 106 stops sending detection signals, and the signal processing device 103 controls the power distribution and transmission device 101 to resume the power transmission from the grid line 104 to the electric equipment 105 .

Further, the power detection system also includes a communication device 107, which is connected to the signal processing device 103, and the communication device 107 is used to send the current signal value received by the signal processing device 103 and judge Results and control instructions to the signal processing device 103 .

The communication device 107 can send out the real-time status of the power grid line 104, so that the staff can conveniently check the situation of the power grid line 104 at any time, and even make a judgment in advance. At the same time, the control instruction to the signal processing device 103 can also be accepted, that is, the power distribution and transmission device 101 can also be controlled to cut off the grid line 104 when there is no fault, or the staff judges that a fault may occur The power transmission to the electric equipment 105 ensures the safety of the power system.

In this embodiment, the current detection device 102 includes a current transformer.

In the lines of power generation, power transformation, power transmission, power distribution and power consumption, the current size varies greatly, ranging from a few amps to tens of thousands of amps. In order to facilitate measurement, protection and control, it needs to be converted into a relatively uniform current. In addition, the voltage on the line is generally relatively high, so direct measurement is very dangerous. The current transformer plays the role of current conversion and electrical isolation. The current signal of the grid line 104 can be detected very conveniently by using a current transformer.

The power detection system provided by the utility model can effectively monitor the faults in the power grid line 104, and can automatically recover after the faults are eliminated. Threats to the personal safety of staff.

As shown in Figure 3, the power detection system provided by the third embodiment of the utility model, the power detection system includes a power distribution and transmission device 101, a current detection device 102 and a signal processing device 103, and the power distribution and transmission device 101 is respectively connected to External power grid lines 104 and power consumption equipment 105, so that the voltage of the power grid line 104 can be transmitted to the power consumption equipment 105, and the current detection device 102 is connected with the power distribution transmission device 101 to detect the The current signal of the grid line 104, the signal processing device 103 is respectively connected to the current detection device 102 and the power distribution transmission device 101, when the current signal detected by the current detection device 102 exceeds a preset threshold , control the power distribution and transmission device 101 to cut off the power transmission from the power grid line 104 to the electric equipment 105 .

The electric power detection system also includes a fault detection device 106, the fault detection device 106 is respectively connected with the power distribution transmission device 101 and the signal processing device 103, and the fault detection device 106 is used in the grid line 104 When the circuit transmission to the electrical equipment 105 is stopped, a detection signal is sent to the grid line 104 through the power distribution and transmission device 101 .

The power detection system also includes a communication device 107, the communication device 107 is connected to the signal processing device 103, and the communication device 107 is used to send the current signal value and the judgment result received by the signal processing device 103 and to A control instruction of the signal processing device 103 .

Further, the communication device 107 is a wireless communication device 107, the power detection system also includes a remote control device 108 and a data display device 109, the remote control device 108 is wirelessly connected to the wireless communication device 107, the data The display device 109 is connected to the remote control device 108, the data display device 109 displays the current signal value and the judgment result received by the remote control device 108, and the remote control device 108 generates a corresponding pair according to the user operation. A control instruction of the signal processing device 103 .

The staff can observe the use of the power grid line 104 very intuitively through the data display device 109, and can also realize remote control through the remote control device 108 very conveniently at the same time, without going to the site to operate in person, which not only improves work efficiency, but also The safety of the staff is guaranteed.

The remote control device 108 can be a computer, or other intelligent mobile terminals, such as mobile phones of staff members, which makes it more convenient for staff members to use.

In this embodiment, the current detection device 102 includes a current detection chip.

The current detection chip can also effectively detect the current signal of the grid line 104, and even convert the current signal into a corresponding digital signal, which facilitates subsequent judgment work.

The signal processing device 103 includes a single-chip microcomputer chip.

The single-chip microcomputer chip has a very good signal processing capability, and can quickly and accurately judge the current signal of the grid line 104, and feed back the corresponding judgment result.

The power detection system provided by the utility model can effectively monitor the faults in the power grid line 104, and can automatically recover after the faults are eliminated. Threats to the personal safety of staff.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. an electric detection system, is characterized in that, described electric detection system comprises distribution conveying device, current sensing means and signal processing apparatus,

Described distribution conveying device connects outside power network line and consumer respectively, make the voltage of described power network line can be transported on described consumer, described current sensing means is connected with described distribution conveying device, to detect the current signal of described power network line, described signal processing apparatus is connected with described current sensing means and described distribution conveying device respectively, when the described current signal that described current sensing means detects exceeds default threshold value, control described distribution conveying device and cut off described power network line the electric power of consumer is carried.

2. electric detection system according to claim 1, it is characterized in that, described electric detection system also comprises failure detector, described failure detector is connected with described distribution conveying device and described signal processing apparatus respectively, described failure detector is used for, when described power network line stops the circuit conveying to consumer, sending detection signal by described distribution conveying device to described power network line.

3. electric detection system according to claim 1, it is characterized in that, described electric detection system also comprises communicator, described communicator is connected with described signal processing apparatus, and described communicator is for the current signal value that sends described signal processing apparatus and receive and judged result and the steering order to described signal processing apparatus.

4. electric detection system according to claim 3, it is characterized in that, described communicator is radio communication device, described electric detection system also comprises remote control and data presentation device, described remote control and described radio communication device wireless connections, described data presentation device is connected with described remote control, described data presentation device shows the described current signal value and judged result that described remote control receives, and described remote control generates the corresponding steering order to described signal processing apparatus according to user operation.

5. electric detection system according to claim 1, it is characterized in that, described current sensing means comprises current transformer.

6. electric detection system according to claim 1, it is characterized in that, described current sensing means comprises current detecting chip.

7. electric detection system according to claim 1, it is characterized in that, described signal processing apparatus comprises singlechip chip.