阅读说明：本技术 一种漏电保护方法、装置、设备及一种漏电保护电能表 (Leakage protection method, device and equipment and leakage protection electric energy meter ) 是由 曹强 陈国峰 张亮 李双全 赵婷 陈方方 王保同 刘书 康亮 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种漏电保护方法、装置、设备、计算机可读存储介质及一种漏电保护电能表,通过从剩余电流互感器获取剩余电流信号；其中,被测电路的火线与零线穿过所述剩余电流互感器；判断所述剩余电流信号是否超过漏电保护阈值；当所述剩余电流信号超过所述漏电保护阈值时,发送断电保护信号至继电器,使继电器断开。本发明通过所述剩余电流互感器直接可得被测电路的火线与零线的电流差值,避免了由于复杂元器件引起的误差积累,提升了检测准确度,提升了检测效率,另外,由于所述剩余电流互感器的高精度,本发明仅通过单次采样得到的剩余电流信号即可确定设备的漏电情况,提升了检测速度,更有效地保障相关人员的生命财产安全。(The invention discloses an electric leakage protection method, an electric leakage protection device, a computer readable storage medium and an electric leakage protection electric energy meter, wherein a residual current signal is obtained from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; judging whether the residual current signal exceeds a leakage protection threshold value; and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay. The residual current transformer can directly obtain the current difference value of the live wire and the zero line of the tested circuit, thereby avoiding error accumulation caused by complex components, improving the detection accuracy and the detection efficiency.)

1. A method of earth leakage protection, comprising:

acquiring a residual current signal from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer;

judging whether the residual current signal exceeds a leakage protection threshold value;

and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay.

2. The earth leakage protection method of claim 1, wherein said determining whether the residual current signal exceeds an earth leakage protection threshold comprises:

sending the residual current signal to a high-precision resistor to obtain a residual voltage signal;

sending the residual voltage signal to a first end of a voltage comparator, and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator;

correspondingly, when the residual voltage signal exceeds the leakage protection voltage, a power-off protection signal is sent to the relay, so that the relay is disconnected.

3. A leakage protection method according to claim 2, wherein the residual current signal is acquired at intervals of 50 ms to 200 ms, inclusive.

4. A leakage protection method according to claim 1, wherein the protection threshold value is in the range of 3 ma to 50 ma, inclusive.

5. An earth leakage protection device, comprising:

the acquisition module is used for acquiring a residual current signal from the residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer;

the judging module is used for judging whether the residual current signal exceeds a leakage protection threshold value;

and the sending module is used for sending a power-off protection signal to the relay to disconnect the relay when the residual current signal exceeds the electric leakage protection threshold value.

6. The earth leakage protection device of claim 5 wherein said determining means comprises:

the voltage determining unit is used for sending the residual current signal to the high-precision resistor to obtain a residual voltage signal;

the voltage comparison unit is used for sending the residual voltage signal to a first end of a voltage comparator and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator or not;

correspondingly, the transmitting module comprises a voltage transmitting unit;

and the voltage sending unit is used for sending a power-off protection signal to the relay to disconnect the relay when the residual voltage signal exceeds the leakage protection voltage.

7. An earth leakage protection device, comprising:

a memory for storing a computer program;

a processor for implementing the steps of the earth leakage protection method according to any one of claims 1 to 4 when executing the computer program.

8. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the earth leakage protection method according to any one of claims 1 to 4.

9. An electric leakage protection electric energy meter is characterized by comprising a residual current transformer, a relay and a main control assembly;

the residual current transformer is used for generating a residual current signal according to a current difference value of a live wire and the zero line of the circuit to be detected;

the main control assembly is used for judging whether the residual current signal exceeds a preset electric leakage protection threshold value; when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay;

the relay is used for controlling the on-off of the controlled circuit to be tested.

10. The earth leakage protection electric energy meter according to claim 9, wherein the main control module comprises a motion controller, a high precision resistor and a voltage comparator;

the high-precision resistor is used for determining a residual voltage signal according to the residual current signal;

the voltage comparator is used for judging whether the residual voltage signal exceeds a preset leakage protection voltage or not, and when the residual voltage signal exceeds the leakage protection voltage, an action signal is sent to the idle controller, so that the action controller sends the power-off protection signal to the relay.

Technical Field

The invention relates to the field of power consumption protection, in particular to an electric leakage protection method, an electric leakage protection device, electric leakage protection equipment, a computer readable storage medium and an electric leakage protection electric energy meter.

Background

Heavy rainfall or continuous rainfall exceed urban drainage ability and often lead to city or district waterlogging, and the public consumer shell that is located outdoors meets water electric leakage easily, untimely break-out leads to often having human electric shock incident to take place, all can have a certain amount kill a death or cause the injury annually, consequently, the electric leakage protection function has just become the standard of public consumer and has been equipped with almost.

The current leakage protection method includes that current collected by a manganin sheet and zero line current collected by a current transformer are converged into a metering chip through two different channels to calculate a difference value, if the difference value is larger than a preset threshold value, current leakage is determined to exist at the moment, and a relay acts to disconnect a circuit, so that safety accidents are avoided.

However, it is easy to see that the above scheme is obtained by calculating the current of the live wire and the zero wire respectively and then calculating the difference value. The live wire current sampling is performed through a manganin shunt, the zero line current sampling is performed through a current transformer, and the two paths of sampling circuits have more peripheral devices, so that the risk of device error accumulation exists, the deviation of the final result and the actual current value is large, the accuracy is poor, and the leakage can be determined by continuously measuring for many times; in addition, because the sampling circuit is complicated, the response delay of the circuit is also higher, and the potential safety hazard is caused by the problem that the circuit is not opened timely for protecting personal safety and preventing accidents.

In summary, how to improve the leakage detection accuracy and the response speed at the same time is an urgent problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide an electric leakage protection method, an electric leakage protection device, an electric leakage protection equipment, a computer readable storage medium and an electric leakage protection electric energy meter, so as to solve the problems of low electric leakage detection accuracy and slow response in the prior art.

In order to solve the above technical problem, the present invention provides a leakage protection method, including:

acquiring a residual current signal from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer;

judging whether the residual current signal exceeds a leakage protection threshold value;

and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay.

Optionally, in the electrical leakage protection method, the determining whether the residual current signal exceeds an electrical leakage protection threshold includes:

sending the residual current signal to a high-precision resistor to obtain a residual voltage signal;

sending the residual voltage signal to a first end of a voltage comparator, and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator;

correspondingly, when the residual voltage signal exceeds the leakage protection voltage, a power-off protection signal is sent to the relay, so that the relay is disconnected.

Optionally, in the earth leakage protection method, the residual current signal is acquired at an interval of 50 milliseconds to 200 milliseconds, inclusive.

Optionally, in the leakage protection method, the protection threshold value ranges from 3 ma to 50 ma, inclusive.

An earth leakage protection device comprising:

the acquisition module is used for acquiring a residual current signal from the residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer;

the judging module is used for judging whether the residual current signal exceeds a leakage protection threshold value;

and the sending module is used for sending a power-off protection signal to the relay to disconnect the relay when the residual current signal exceeds the electric leakage protection threshold value.

Optionally, in the electrical leakage protection device, the determining module includes:

the voltage determining unit is used for sending the residual current signal to the high-precision resistor to obtain a residual voltage signal;

the voltage comparison unit is used for sending the residual voltage signal to a first end of a voltage comparator and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator or not;

correspondingly, the transmitting module comprises a voltage transmitting unit;

and the voltage sending unit is used for sending a power-off protection signal to the relay to disconnect the relay when the residual voltage signal exceeds the leakage protection voltage.

An earth leakage protection device comprising:

a memory for storing a computer program;

a processor for implementing the steps of the leakage protection method as described in any one of the above when executing the computer program.

A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the earth leakage protection method as claimed in any one of the above.

An electric leakage protection electric energy meter comprises a residual current transformer, a relay and a main control assembly;

the residual current transformer is used for generating a residual current signal according to a current difference value of a live wire and the zero line of the circuit to be detected;

the main control assembly is used for judging whether the residual current signal exceeds a preset electric leakage protection threshold value; when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay;

the relay is used for controlling the on-off of the controlled circuit to be tested.

Optionally, in the electric leakage protection electric energy meter, the main control component includes an action controller, a high-precision resistor and a voltage comparator;

the high-precision resistor is used for determining a residual voltage signal according to the residual current signal;

the voltage comparator is used for judging whether the residual voltage signal exceeds a preset leakage protection voltage or not, and when the residual voltage signal exceeds the leakage protection voltage, an action signal is sent to the idle controller, so that the action controller sends the power-off protection signal to the relay.

According to the leakage protection method provided by the invention, a residual current signal is obtained from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; judging whether the residual current signal exceeds a leakage protection threshold value; and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay.

The residual current transformer can directly obtain the current difference value (namely the residual current signal) between the live wire and the zero wire of the tested circuit, and a complex sampling circuit for the zero wire and the live wire is omitted, so that the error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire are not required to be independently sampled and the difference value is calculated, the detection time is greatly saved, and the detection efficiency is improved. The invention also provides an electric leakage protection device, equipment, a computer readable storage medium and an electric leakage protection electric energy meter with the beneficial effects.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic flow chart of an embodiment of a leakage protection method according to the present invention;

fig. 2 is a schematic flow chart of another embodiment of the leakage protection method according to the present invention;

fig. 3 is a schematic structural diagram of an embodiment of an earth leakage protection device according to the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the earth leakage protection electric energy meter provided by the present invention;

fig. 5 is a schematic structural diagram of another embodiment of the earth leakage protection electric energy meter provided by the invention.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the present invention is to provide a leakage protection method, wherein a flow diagram of one embodiment of the leakage protection method is shown in fig. 1, which is called as a first embodiment, and the method includes:

s101: acquiring a residual current signal from a residual current transformer; and the live wire and the zero wire of the tested circuit pass through the residual current transformer.

S102: and judging whether the residual current signal exceeds a leakage protection threshold value.

And the electric leakage protection threshold value is a current value, and whether electric leakage occurs is determined by judging whether the current value of the residual current signal exceeds a preset current value corresponding to electric leakage protection.

S103: and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay.

According to the invention, the residual current transformer is adopted to directly obtain the residual current signal, so that the time required for collecting the current difference value of the live wire and the zero line is greatly saved, the whole electric leakage judgment speed is greatly accelerated, the consumed time is shortened, the electric leakage detection time can be shortened, the electric leakage detection is carried out more frequently, the electric leakage detection is found more timely, and the potential safety hazard is avoided.

It should be noted that, as can be seen from the foregoing, the residual current signal in the present invention is a current pulse signal output by the residual current transformer in a single sampling.

On the other hand, the residual current transformer is adopted to replace a large number of components in the prior art to obtain the current difference value (namely the residual current signal) between the zero line and the live line, so that the error accumulation caused by a large number of electrical components is avoided, and the detection precision is greatly improved, so that the protection threshold value is further reduced in order to further protect the life and property safety of related personnel, and the protection threshold value ranges from 3 milliamperes to 50 milliamperes including an end point value, such as any one of 3.0 milliamperes, 15.7 milliamperes or 50.0 milliamperes.

According to the leakage protection method provided by the invention, a residual current signal is obtained from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; judging whether the residual current signal exceeds a leakage protection threshold value; and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay. The residual current transformer can directly obtain the current difference value (namely the residual current signal) between the live wire and the zero wire of the tested circuit, and a complex sampling circuit for the zero wire and the live wire is omitted, so that the error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire are not required to be independently sampled and the difference value is calculated, the detection time is greatly saved, and the detection efficiency is improved.

On the basis of the first specific embodiment, the determining step is further limited to obtain a second specific embodiment, a flow diagram of which is shown in fig. 2, and includes:

s201: acquiring a residual current signal from a residual current transformer; and the live wire and the zero wire of the tested circuit pass through the residual current transformer.

S202: and sending the residual current signal to a high-precision resistor to obtain a residual voltage signal.

The residual current signal passes through the high-precision resistor, and the partial voltage of the high-precision resistor, namely the residual voltage signal, can be obtained; wherein, the high-precision resistor refers to a resistor with an actual resistance error of less than 1%.

S203: and sending the residual voltage signal to a first end of a voltage comparator, and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator.

The voltage comparator is provided with two input ends, namely a first end and a second end, the first end is connected with the high-precision resistor and used for receiving the residual voltage signal, the second end is connected with a constant voltage power supply, and the constant voltage power supply provides the leakage protection voltage.

S204: correspondingly, when the residual voltage signal exceeds the leakage protection voltage, a power-off protection signal is sent to the relay, so that the relay is disconnected.

In this embodiment, a method for determining whether leakage occurs is further defined, the high-precision resistor is used to convert the residual current signal into the residual voltage signal, and then a simple voltage comparator is used to determine whether the residual current signal exceeds the threshold, and the whole determination process does not require software intervention of a processor such as a single chip microcomputer, so that the processing time is further shortened, leakage detection is frequently performed, and the possibility of occurrence of an accident is reduced.

Preferably, the acquisition interval of the residual current signal is 60 ms to 300 ms, including an endpoint value, such as any one of 60.0 ms, 159.2 ms or 300.0 ms, and it should be noted that the acquisition interval of the residual current is an interval for completing a leakage determination, that is, every time an acquisition interval of the residual current signal is passed, the leakage detection is performed on the circuit to be detected. Of course, the specific interval time can be adjusted according to actual conditions.

In the following, the leakage protection device provided by the embodiment of the present invention is introduced, and the leakage protection device described below and the leakage protection method described above may be referred to correspondingly.

Fig. 3 is a block diagram of an electrical leakage protection device according to an embodiment of the present invention, and referring to fig. 3, the electrical leakage protection device may include:

an earth leakage protection device, comprising:

an obtaining module 100, configured to obtain a residual current signal from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer;

the judging module 200 is configured to judge whether the residual current signal exceeds a leakage protection threshold;

the sending module 300 is configured to send a power-off protection signal to the relay to turn off the relay when the residual current signal exceeds the leakage protection threshold.

As a preferred implementation, the determining module 200 includes:

the voltage determining unit is used for sending the residual current signal to the high-precision resistor to obtain a residual voltage signal;

the voltage comparison unit is used for sending the residual voltage signal to a first end of a voltage comparator and judging whether the residual voltage signal exceeds the leakage protection voltage of a second end of the voltage comparator or not;

accordingly, the transmitting module 300 includes a voltage transmitting unit;

and the voltage sending unit is used for sending a power-off protection signal to the relay to disconnect the relay when the residual voltage signal exceeds the leakage protection voltage.

The earth leakage protection device provided by the invention is used for acquiring a residual current signal from a residual current transformer through the acquisition module 100; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; the judging module 200 is configured to judge whether the residual current signal exceeds a leakage protection threshold; the sending module 300 is configured to send a power-off protection signal to the relay to turn off the relay when the residual current signal exceeds the leakage protection threshold. The residual current transformer can directly obtain the current difference value (namely the residual current signal) between the live wire and the zero wire of the tested circuit, and a complex sampling circuit for the zero wire and the live wire is omitted, so that the error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire are not required to be independently sampled and the difference value is calculated, the detection time is greatly saved, and the detection efficiency is improved.

The leakage protection device of this embodiment is configured to implement the aforementioned leakage protection method, and therefore a specific implementation of the leakage protection device may be found in the foregoing embodiment portions of the leakage protection method, for example, the obtaining module 100, the determining module 200, and the sending module 300, which are respectively configured to implement steps S101, S102, and S103 in the aforementioned leakage protection method, so that the specific implementation thereof may refer to descriptions of corresponding embodiments of each portion, and is not described herein again.

The present invention also provides an earth leakage protection device, comprising:

a memory for storing a computer program;

a processor for implementing the steps of the leakage protection method as described in any one of the above when executing the computer program.

According to the leakage protection method provided by the invention, a residual current signal is obtained from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; judging whether the residual current signal exceeds a leakage protection threshold value; and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay. The residual current transformer can directly obtain the current difference value (namely the residual current signal) between the live wire and the zero wire of the tested circuit, and a complex sampling circuit for the zero wire and the live wire is omitted, so that the error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire are not required to be independently sampled and the difference value is calculated, the detection time is greatly saved, and the detection efficiency is improved.

The present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the earth leakage protection method as described in any one of the above.

According to the leakage protection method provided by the invention, a residual current signal is obtained from a residual current transformer; the live wire and the zero wire of the tested circuit penetrate through the residual current transformer; judging whether the residual current signal exceeds a leakage protection threshold value; and when the residual current signal exceeds the electric leakage protection threshold value, sending a power-off protection signal to the relay to disconnect the relay. The residual current transformer can directly obtain the current difference value (namely the residual current signal) between the live wire and the zero wire of the tested circuit, and a complex sampling circuit for the zero wire and the live wire is omitted, so that the error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire are not required to be independently sampled and the difference value is calculated, the detection time is greatly saved, and the detection efficiency is improved.

The invention also provides an electric leakage protection electric energy meter, the structure schematic diagram of one specific implementation mode of the electric leakage protection electric energy meter is shown in fig. 4, and the electric leakage protection electric energy meter comprises a residual current transformer 10, a relay 20 and a main control assembly;

the residual current transformer 10 is used for generating a residual current signal according to a current difference value between a live wire and the zero line of the circuit to be tested;

the main control assembly is used for judging whether the residual current signal exceeds a preset electric leakage protection threshold value; when the residual current signal exceeds the leakage protection threshold value, sending a power-off protection signal to the relay 20 to disconnect the relay 20;

the relay 20 is used for controlling the on-off of the controlled circuit to be tested.

It should be noted that, in fig. 4, the main control component includes a metering chip 31 and an action controller 32, the metering chip 31 is configured to determine whether the residual current signal exceeds a preset leakage protection threshold, and when the residual current signal exceeds the leakage protection threshold, the action controller 32 sends a power-off protection signal to the relay 20. Of course, the single chip may be adopted to integrate the functions of the metering chip 31 and the motion controller 32 as the main control component.

Of course, besides using the metering chip 31, a pure electrical circuit without involving a processor may be used to determine whether the leakage occurs, that is, the main control component includes a motion controller 32, a high-precision resistor 33 and a voltage comparator 34, and a specific structural diagram thereof is shown in fig. 5;

the high-precision resistor 33 is used for determining a residual voltage signal according to the residual current signal;

the voltage comparator 34 is configured to determine whether the residual voltage signal exceeds a preset leakage protection voltage, and send an action signal to the idle controller when the residual voltage signal exceeds the leakage protection voltage, so that the action controller 32 sends the power-off protection signal to the relay 20.

The operation logic and beneficial effects of the electric leakage protection electric energy meter in the present embodiment can refer to the electric leakage protection method described in the foregoing, and are not further described herein.

The electric leakage protection electric energy meter comprises a residual current transformer 10, a relay 20 and a main control assembly; the residual current transformer 10 is used for generating a residual current signal according to a current difference value between a live wire and the zero line of the circuit to be tested; the main control assembly is used for judging whether the residual current signal exceeds a preset electric leakage protection threshold value; when the residual current signal exceeds the leakage protection threshold value, sending a power-off protection signal to the relay 20 to disconnect the relay 20; the relay 20 is used for controlling the on-off of the controlled circuit to be tested. The residual current transformer 10 can directly obtain the current difference value between the live wire and the zero wire of the tested circuit (namely the residual current signal), a complex sampling circuit for the zero wire and the live wire is omitted, error accumulation caused by complex components is avoided, the detection accuracy is improved, meanwhile, the live wire and the zero wire do not need to be independently sampled and the difference value is calculated, the detection time is greatly saved, the detection efficiency is improved, in addition, due to the high precision of the residual current transformer 10, the residual current signal obtained by single sampling can be used for determining the electric leakage condition of the equipment, continuous sampling and multiple measurement are not needed, the detection speed is further improved, and the life and property safety of related personnel is effectively guaranteed.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

The leakage protection method, device, apparatus, computer readable storage medium and a leakage protection electric energy meter provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.