KR20080044975A - Time synchronization and standard phase detection device using timemark - Google Patents

Abstract

The present invention relates to an apparatus for detecting a standard phase determined from a standard phase power plant on a transmission and distribution line through time synchronization, and includes a standard phase identification device installed at a power station or a substation or any place capable of confirming a standard phase. A system composed of an arbitrary phase detection device capable of detecting phase information of a distribution line at a place of a communication device, comprising: communication means for connecting the standard phase identification device and the arbitrary phase detection device by wire or wirelessly; Synchronizing means for synchronizing the time of the arbitrary phase detecting apparatus and the standard phase identifying apparatus at a predetermined time at a current time through a GPS navigation module after the apparatus and the arbitrary phase detecting apparatus communicate with each other; By subdividing the synchronized time in the Sudan, the accurate current time can be obtained even if there is no GPS signal. Underground is provided a structure of calculation means by applying a phase to phase the created measure pseudo waveform same as the phase of the measuring line on the time division in the frequency division means, the frequency division means or corresponding for calculating the phase angle information.

In the phase information detection system as described above, by using the time of the satellite, there is an advantage that can achieve accurate time synchronization, and can cope with changes in the communication environment, thereby improving the accuracy of image discrimination.

Description

The Apparatus for Time Synchronization and Basis Phase Detection which using of a Time-mark}

Figure 1a is a block diagram showing a standard phase identification device of the device according to the present invention.

1B is a block diagram showing an arbitrary phase detection device of the device according to the present invention.

2 is a time-mark graph for receiving time information from a satellite navigation device (GPS) in a standard phase identification device and an arbitrary phase detection device according to the present invention.

Figure 3a is a waveform diagram for detecting the phase angle in the standard phase identification device according to an embodiment of the present invention.

Figure 3b is a waveform diagram for detecting the phase angle in the arbitrary phase detection apparatus according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

10, 110: communication unit 20, 120: converter unit

30, 130: phase detector 40, 150: DSP circuit

50, 160: control unit 60, 170: memory unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time synchronization and standard phase detection apparatus using a timemark, and more particularly, to an apparatus for detecting a phase angle Sinθ at an arbitrary time in each phase in a transmission line or a distribution line and synchronizing the same and detecting a standard phase.

In general, power generated from hydro, thermal, or nuclear power plants has a given phase in the generator (hereinafter referred to as "generator defined" as "standard phase"), which is assumed to have a phase angle of P1, P2, or P3. In the middle stages of transmission and distribution to end customers, such as offices, factories, factories, etc., they reach the end customers through substations and transformers.

The power generated at the power plant is usually supplied to the substation at high pressure, which is then reduced to a higher pressure, typically lower than the power plant, to the transformer just before the final consumer side, which is used at the final consumer side. It is converted into a voltage suitable for the following and supplied to the final consumer side.

These transformers include pole-type transformers installed on poles and transformers for underground distribution lines installed on the ground. Among them, pole-type transformers are relatively small in capacity, and thus, relatively small and lightweight, are usually installed in poles to reduce the high pressure from the substation to low pressure. It is supplied to the end customer side. However, in crowded metropolitan areas, it is very dangerous to drag high voltage distribution lines from substations through electric poles in congested urban areas. Therefore, power outlets are usually installed underground. ) And to the end customer through a ground-based transformer, a pad transformer for underground distribution lines.

However, in the current distribution line, the ground section and the ground section are mixed within a positive feeling, and when the track is changed from the ground to the ground or in a crowded area of shops or buildings, the track changes during construction. There are many difficulties in management such as load bias is easy to occur and such load bias causes phase unbalance, resulting in loss of power and power quality to customers. Underground lines have multiple cables mixed in one tunnel. The accuracy of finding the phase is low, and the measurement work takes a long time.

That is, the apparatus for identifying the current phase uses a method of determining a phase by comparing a phase and a ground by detecting a phase angle of each phase by connecting a probe to any two phases in a three-phase distribution line. However, this is a concept of checking phase order, which is fundamentally different from standard phase detection, and in some products that detect phase, the device developed by simply finding phase angle of the same time zone using GPS or atomic clock is Although the limitation of the distance to search for is compensated for, the equipment price is expensive, and the device for finding the moving and phase requires many antennas and amplifiers to increase the reception rate because GPS reception is not available depending on the place such as underground or inside a building. It was very inconvenient to apply it to the work site conditions. For this reason, only a specific device is configured to notify the mobile device by using GPS time, so there is a problem that the difficulty of measurement and accuracy cannot be maintained for a long time.

In addition, because the phase detecting device is not fixed but can only be moved, the installation and handling problems and the concept of the standard phase are lost every time the device for detecting the phase is removed. In the case of time synchronization between devices by receiving time information from the mobile communication repeater, the mobile communication module (CDMA) approved by the corresponding telecommunication company must be installed for both devices, so that the procedural problems and the unused periods of approval can be avoided. There is a problem in economics such as unnecessary communication fee payment, and there is a limitation that only limited use can be made due to differences in communication methods between countries or telecommunication companies.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the phase angle signal measured by an arbitrary phase detection device is used as a standard phase identification device installed at a specific place to detect the phase angle signal of each phase. It transmits through a wireless communication network, and the standard phase identification device substitutes the phase angle signal (Sin θ) and time information sent from an arbitrary phase detection device into the phase angle signal detected by itself to determine which phase ( It is an object of the present invention to provide a standard phase detection device that supports time synchronization by determining whether the phase is consistent with P1, P2, and P3 and notifying the phase information to the arbitrary phase detection device.

In addition, the present invention provides a standard phase detection device that can detect and verify information on a standard phase by using GPS visual signals and wired / wireless communication.The standard phase (phase) of each phase in a power station, substation, or any place where standard phase can be confirmed. Standard phase checker is installed to detect the random phase by sending the information on the standard phase of the transmission / distribution line through the wired / wireless communication relay station to the arbitrary phase detection device anywhere in the entire power distribution network. It is an object of the present invention to provide a time synchronization and standard phase detection device using a time mark that enables the phase detection device to provide information about the standard image to the measurer.

Time synchronization and standard phase detection apparatus using a time mark according to the present invention for achieving the above object is installed in any power station, substation or any place that can check the standard phase, and detects the information on the transmission and distribution line Of a line in a transmission line or a distribution line by using a standard phase checking device and an arbitrary phase detecting device which checks the phase information of a transmission / distribution line at an arbitrary measurement location by wired / wireless communication with the standard phase checking device. A device for detecting a phase.

The standard phase checking apparatus according to the present invention normally detects a time signal (Time-mark) through the GPS receiving module and synchronizes the internal time of the apparatus every second, and the random phase detecting apparatus starts the standard phase checking apparatus when the device is started. After synchronizing the current time through the GPS receiving module mounted on the device as described above, the communication is performed with the standard phase checking device by attempting communication with the standard phase checking device, and then the random phase detecting device and the standard phase checking device are synchronized. By dividing the time finely, it is possible to keep the accurate current time in its own divided time even if it cannot receive the time-mark signal of GPS for a certain time. And phase information transmitted from the phase arbitrary phase detection device by the standard phase confirmation device. The determination information on the standard set by the power plant in accordance with the corresponding characterized by including the step of notifying the detection of any device.

In the time synchronization and standard phase detection apparatus using a time mark according to the present invention, information exchange between the standard phase identification device and the arbitrary phase detection device is performed by wire or wireless communication by a relay station, and the arbitrary phase detection device is used. After a predetermined time after communication with the standard phase checking device, the phase angle is detected in the same manner as the standard phase checking device at a predetermined time, and the arbitrary phase detecting device and the phase detecting probe detect the detected phase signal by radio frequency ( It is characterized in that transmission and reception using RF (Radio Frequency) method is possible.

In addition, in the time synchronization and standard phase detection apparatus using a time mark according to the present invention, the standard phase identification apparatus may identify the identified standard phase identification information with a DTMF (Dual-Tone Multi Frequency) signal or a packet unit. And the phase information between the standard phase identification device and the arbitrary phase detection device is directly executed using the wired / wireless communication network. do.

Time synchronization and standard phase detection apparatus using a time mark according to the present invention for achieving the above object in order to provide a method for detecting the phase of the line in the transmission line or distribution line, power plant, substation or any place that can be confirmed the standard phase The standard phase checking device, which is installed at the station and collects information on the phases of transmission and distribution lines, has a means of continuously receiving GPS time marks and synchronizing the internal time as usual, and the operator has to An arbitrary phase detection device for confirming information and communication means for connecting the standard phase identification device and the arbitrary phase detection device by wire or wirelessly, wherein the arbitrary phase detection device is mounted to the arbitrary phase detection device when the power is turned on. The internal time is received by receiving the time mark that occurs every time the satellite starts through the GPS receiving module. Means for distributing and dividing the synchronized time in the synchronization means after the communication between the arbitrary phase detection device and the standard phase confirmation device is performed; And calculating means for calculating phase angle information by substituting the phase for the measured phase by making a pseudo waveform equal to or corresponding to the phase of the measuring line at the time dispensed by the dispensing means. According to the phase information transmitted from the phase random phase detection device, information about a standard phase determined in a corresponding power plant is determined and notified to the random phase detection device.

In addition, the standard phase identification device does not phase discrimination when a phase angle data sent from an arbitrary phase detection device is detected at a same time with the phase angle detected by the standard phase identification device. The random phase detection device analyzes the phase-specific data sent from the standard phase identification device and the phase angle detected by the standard phase identification device sent from the standard phase identification device as a basis for discrimination. It is characterized in that the phase discrimination is canceled and re-measured when one phase angle and a predetermined error (for example, ㅁ 30 ㅀ or more) occur, and the phase angle detecting means is spiral or insulated regardless of the magnitude of the voltage of the transmission line. Phase angle information is detected by using a probe on the covering line.

The phase angle detection signal may be wirelessly transmitted and received by using a method of directly detecting a probe by contacting a wire, a probe and an arbitrary phase detection device, and using a radio frequency (RF) communication method. And display means for displaying characters and pictures on the display portion of the image detection device and storage means for storing contents displayed on the display means.

In the time synchronization and standard phase detection apparatus using a time mark according to the present invention, the standard phase identification apparatus has phase information on the behavior when the phase discrimination behavior is normally completed, and the time when the unique ID and phase discrimination behavior of the arbitrary phase detection apparatus were present. Information and the like, wherein the standard phase identification device transmits the identified phase discrimination information to the arbitrary phase detection apparatus in a complex frequency code (DTMF) signal or in a packet unit manner.

Further, in the time synchronization and standard phase detection apparatus using a time mark according to the present invention, the communication means uses a wired / wireless device for the standard phase identification device and a mobile phone or a mobile communication module for the arbitrary phase detection device. It is characterized in that the phase information between the standard phase identification device and the arbitrary phase detection device is directly executed.

In the present invention, the method of synchronizing the time between the standard phase checking device and the random phase detecting device includes a time mark signal generated every time the second time starts at the satellite signal receiving module connected to the normal device. The random phase detection device synchronizes the current time of the device by receiving one or more timemark signals, such as a standard phase identification device, from a satellite signal receiving module connected to the device the moment the power is turned on.

Both devices synchronize the current time based on the time received from the satellite and then subdivide it within several microseconds in the internal frequency dividing circuit so that the current time can be maintained without a satellite signal for a certain period of time. Phase detection and comparison is possible, and arbitrary phase detection device is in the state of communication connection only when time mark is input among GPS satellite signals when initial power is turned on, and keypad or operator connected with the communication module embedded in the device Connect the mobile phone to the device and call the standard phase checking device.If communication connection with the standard phase checking device is established, after a certain time when the communication connection is made according to the pre-programmed sequence, the random phase detecting device is radio frequency (RF). Signal detection probe provides information about the voltage phase angle of the distribution line to be detected and the detection start time. Data is processed by the internal data conversion processing device, and the processed data is stored in the control unit and converted into a DTMF signal suitable for communication, and confirmed by the mobile phone connected to the device or built-in communication module. To the device.

In addition, the standard phase checking device checks the time mark signal of the satellite after the initial communication with the arbitrary phase detection device is connected, and if the time mark signal is normally received, the internal time of the device is synchronized again every second to the time received from the satellite and is fixed. After the time, the phase detection unit detects the phase angle of each phase of the three-phase distribution line and starts storing the data in the built-in memory. If the satellite detection signal is weak or unreceivable, the status information can be It is characterized by notifying the detection device and suspending phase detection until the satellite signal is normally received.

In addition, the standard phase identification device receives the phase angle and measurement start time data sent from the arbitrary phase detection device through the wired / wireless communication module connected to the device, converts the data through the data conversion unit, and inputs the data to the central control unit. The controller compares the phase angle and visual information of each phase stored in the memory with the data sent from the random phase detection device and finds a phase equal to the phase angle including the measurement time sent from the random phase detection device. And enters the standby state to receive the next signal from the random phase detection device.

In order to accurately execute such a method, the time between the two devices must be synchronized equally. For this, the method using the time information of the mobile communication network and the method of obtaining the current time using the atomic clock having the lowest time error are considered. However, in order to synchronize the time of the mobile communication network, there is a problem in that each device must be equipped with a communication module for mobile communication, and thus there is a problem in economics such as payment of communication charges even during periods of non-use, and atomic clocks are expensive and have weight and volume. There is a problem that the satellite reception method used up to now has a problem that the production efficiency for the increase in the complexity and the manufacturing cost of equipment for installing a separate antenna, etc., because of the restrictions of the place as in the underground or building.

However, the time synchronization and standard phase detection apparatus using the time mark according to the present invention constitutes a firmware capable of inducing a time mark output to the GPS receiving module currently in use, and even if the time mark signal is lost in the first time at least once Receiving the mark signal and time information, the time division program using the oscillator etc. together with the time correction program in the GPS receiver module itself is refined based on the received time mark, so that the accuracy of the time required for phase detection without the satellite reception for a certain time is obtained. It is possible to maintain time synchronization for standard phase detection without the need for a separate satellite antenna, extension cable and signal amplifier, thereby reducing the manufacturing cost and miniaturizing the device.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described.

Figure 1a is a block diagram showing a standard phase identification device of the phase information detection system according to the present invention, Figure 1b is a block diagram showing an arbitrary phase detection device of the phase information detection system according to the present invention, Figure 2 is shown in Figures 1a and When a phase is detected using the phase information detection system shown in FIG. 1B, the standard phase checking device and the arbitrary phase detecting device are timemark signals of a satellite for synchronizing GPS time.

In the present invention, the standard phase identification device shown in Figure 1a is a device for detecting the standard three-phase (P1, P2, P3) mounted on any place (power station, substation or any place where the standard phase can be confirmed), The arbitrary phase detection device shown in FIG. 1B is a device for finding a standard phase while moving.

First, when the operator turns on the random phase detection device at any place to find the standard phase, the satellite signal is detected by the satellite receiving module connected to the random phase detection device. Even if the signal is received, this signal sets the time at the time of receiving the satellite signal. Therefore, it is meaningless in the method of detecting and comparing the standard phase by synchronizing the time of the standard phase confirmation or arbitrary phase detection device based on the time signal. . This means that if there is a maximum time synchronization error of 2.77㎳, an error occurs in phase discrimination. At this time, the time signal is received at a point within 1 second of time. For example, an error of several hundreds of microseconds or more (less than a maximum of one second) may occur significantly from 00.000 seconds).

Of course, every second after the point of reception, the synchronization is several ?? Although there is an error of less than 있지만, this is a time error of exactly one second after the time of the first synchronization time, so it is not a problem when using one device, but it is impossible to synchronize the time at the same time in two or more devices. For example, in case of using frequency, in order to detect and compare the phase angle progressing at a speed of 21,600 Hz per second, the time synchronization error of the standard phase detection device and the arbitrary phase detection device is an error of maximum ㅁ 2.77 Hz (59.9 Hz) or less. This is because phase discrimination is possible only in the range. This is because the phase angle difference with the P2 phase following the arbitrary P1 phase is 120 s (5.55 s), so it is difficult to identify whether it is a P1 or P2 phase in the middle ㅁ 60 s.

In order to prevent such a mistake, the standard phase checking device and the random phase detecting device should be precisely synchronized within a maximum of 2.7 dB and the number of satellites currently received by the GPS receiving module is a certain number (for example, three or more). ) If it is over, you need to make a timemark and output it through a separate firmware.

A time mark is a method of generating a pulse as shown in FIG. 3 at a point where time starts (for example, 00.000 seconds). The time synchronization using the time mark is a time error of more than ㎲ except for a special environmental influence such as sunspot explosion. Does not occur, it is possible to maintain accurate time synchronization every second on both devices within a few hundred kilometers.

As described above, when the GPS signal is detected by the arbitrary phase detection device and normally detects the time mark signal as shown in FIG. 3, the operation state of the phase detection probe is started to be searched. When the signal reaches the arbitrary phase detection device, a message is displayed on the display screen to call the standard phase checking device, and the operator calls the standard phase checking device by connecting the mobile phone of the worker to the device through the display screen. At this time, the worker's mobile phone merely calls the standard phase identification device or takes charge of the passage of data transmission to exchange information such as phase angle data with the standard phase identification device.

The standard phase confirmation device that receives the call through the wired / wireless communication relay station retrieves the other party's ID from the automatic response function communication unit and automatically terminates the communication if it is different from the pre-programmed ID. In the same manner as in the above, if the satellite signal connected to the device is properly received (timemark reception) and the like, and if there is no or no timemark output, the first communication unit 10 detects the promised signal to notify the result. Send to the device and continue to search for GPS signals until satellite reception is normal.

If the time mark is normally received during the search, it transmits the promised signal to the arbitrary phase detection device and sends the received time mark signal and time information to the division circuit to maintain the accurate current time so that the digital signal can be processed in hardware. The integrated circuit is transferred to the DSP 40 and the controller 50.

At this time, if the function of the apparatus is normal, the controller 50 instructs the detector 30 to detect the phase angle after a pre-programmed time in the communication connection state, and the detector 30 starts from the moment when the command of the controller 50 is received. The phase angle is generated by substituting the pseudo waveform generated at the same time with the detection of the voltage phase of each phase and transferred to the DSP 40 circuit. In the DSP 40 circuit, the present time sent from the frequency divider circuit is substituted for the transmitted phase angle. Phase angle data of each phase including the detection time is sent to the controller.

The control unit causes the data transmitted in real time from the DSP circuit to record data for a predetermined time through the storage unit 60, and the arbitrary phase detection device is configured to control the first phase of the standard phase confirmation device through the second communication unit 110. After the communication with the communication unit 10 is generated based on the timemark signal received from the satellite every second divided time data generated by the internal division circuit and sent to the DSP 150 circuit and the control unit 160, the control unit is a standard phase confirmation device The detector 130 detects the electric field detection probe through the radio frequency (RF) receiver 140 of the detector while instructing the DSP 150 circuit to detect a phase at a time promised by the preprogrammed sequence. Receives a radio frequency (RF) voltage phase signal and transmits the phase angle data to the DSP 150 circuit by generating a phase angle by substituting a pseudo waveform generated by itself. .

In the DSP circuit, when the detection command is dropped from the control unit, phase angle data including the detection time is substituted by inserting the current time into the phase angle data sent from the detection unit at the promised time (for example, as shown in FIG. Phase angle) is sent to the controller 160, and when the satellite signal is cut off or weak, the voltage of the measurement line is similar to the above using the time correction signal output from the GPS receiver module and the current time generated by the internal frequency dividing circuit. The phase angle is detected, and the control unit 160 processes the detected phase information into data necessary for transmission to a standard phase checking apparatus, converts the D / A converter unit 120 into a DTMF signal, and communicates with the communication unit 110. Send measurement data to the standard phase identification device.

The standard phase checking device, when data arrives from the random phase detection device through the communication unit 10, converts the A / D in the converter unit 20 and inputs data to the control unit 50, and the control unit detects the signal sent from the random phase detection device. Analyze phase angle data including time, retrieve phase angle data including detection time of each phase stored in its own memory, find voltage phase angle data measured at the same time as arbitrary phase detection device Standard phases corresponding to the angles (for example, P1 phases having a phase angle of 90 out of phase angles detected in 00.000 seconds as shown in FIG. 3A) are distinguished, and the phases of each phase serving as the discriminating standard phase and the discrimination criteria When the angle is sent to the converter unit 20, the converter unit converts the DTMF signal necessary for transmission through the D / A converter, transmits it to the random phase detection device through the communication unit 10, and then receives the next signal. The groups.

At this time, when the phase angle data sent from the arbitrary phase detection device is compared with the data measured at the same time by the standard phase checking device, if the error occurs more than a certain angle (for example, ㅁ 30 ㅀ or more) based on the detection time, re-measurement is required. Is transmitted to an arbitrary phase detection device, and both devices repeat the same operation as the first time.

In addition, the arbitrary phase detection device randomly selects the standard phase discrimination information (for example, P1 phase) and the phase angles for discrimination (for example, P1 90, P2 330, and P3 210) sent from the standard phase checking device on the display screen. Display the figure and text display of the process of moving the probe to the next phase to find the next phase if the phase difference error and the standard phase are notified to the operator in numbers and letters. At this time, if there is no voltage phase detected for a certain time in the process of moving the probe, the random phase detector proceeds to standby mode, and when the phase is detected again, the random phase detector automatically notifies the start of measurement to the standard phase checker. In this case, the standard phase checking device and the random phase detecting device keep the communication connected and detect the phase angle after a certain time. And compare the same way as above.

However, differently, phase angles including the phase identification data sent from the standard phase identification device and the measurement time of three phases (P1, P2, P3) detected by the standard phase identification device sent from the standard phase identification device are analyzed. When the phase angle detected by the random phase detection device and a predetermined error (for example, wh 30 dB or more) occur, the phase discrimination is determined by the random phase detection device in the same manner as the standard phase checking device stops discrimination. By canceling and repeating the same operation as before, the characteristic is that the accuracy of the measurement is increased.

The above-described standard phase checking apparatus according to the present invention, if all of these actions are completed normally, the phase information and the unique ID of the random phase detection apparatus and the date and time of each plate identification to determine when the information for later discrimination is needed. The data is recorded in a separate memory capable of outputting data externally, and other data is automatically deleted so that the storage unit is empty.

The present invention proposes a method for finding a standard phase (P1, P2, P3 phase) at any place regardless of the location or distance, and the standard phase checking device allows to detect a predetermined standard phase from a power plant and is movable portable random phase detection device. Connects the probe to the line to find the phase and accepts the phase angle signal transmitted from the probe as an arbitrary phase detection device, and compares the phase angle detection time and phase angle between the standard phase checking device and the device of the arbitrary phase detection device through communication. As described above, according to the phase information detecting apparatus according to the present invention, the present time of both devices is set once to the GPS time of the GPS. After abnormal synchronization, normal phase detection can be performed without satellite signal for a certain period of time. It is not particular about the branch can be obtained a compact and cost-effectiveness of the apparatus.

In addition, according to the phase information detection system and apparatus according to the present invention, since the operator's mobile phone can be used without using the mobile communication module, the communication cost is reduced during the non-use period and the approval is obtained from the telecommunication company every time the product is produced (unique identification). No) should not occur so that planned production is possible, and the standard phase confirmation device in the time synchronization and standard phase detection device using the time mark according to the present invention can use a wired telephone measurement measurement due to communication failure As the phenomenon can be reduced, more accurate measurement work can be performed, and the arbitrary phase detection device can receive the voltage phase detected by the detection pro unit and radio frequency (RF) communication to prevent the risk of electric shock of the worker working at high pressure. It has an effect that can be done.

Claims (4)

The present invention provides an apparatus for detecting a standard phase determined from a standard phase power plant in transmission and distribution lines through time synchronization; A standard phase checker; Arbitrary phase detection device, The standard phase checking device includes: a receiving module for receiving a signal for synchronizing an internal time by receiving a time mark of the satellite navigation device during normal operation; A communication unit for connecting an arbitrary phase detection device for checking a phase information of a power distribution line at an arbitrary place by a standard phase identification device and wired / wireless communication means; A converter unit for A / D converting the signal when data from an arbitrary phase detection device arrives through the communication unit; After the initial communication with the arbitrary phase detection device is connected, check the timemark signal of the satellite and if the timemark signal is received normally, synchronize the internal time of the device again every second with the time received from the satellite. A detector for detecting each phase angle of the phase distribution line; If the satellite detection signal is weak or unreceivable, the state information is notified to the arbitrary phase detection device, and the phase detection operation is suspended until the satellite signal is normally received. Compare phase angle and time information of each phase to find the same phase as phase angle including measurement time sent from arbitrary phase detection device and transmit the determined information to random phase detection device and wait for receiving next signal from random phase detection device A control unit having a; If the time mark is normally received during the search, it transmits the promised signal to the arbitrary phase detection device, and sends the received time mark signal and time information to the division circuit to maintain the accurate current time. A circuit DSP; A storage unit which detects each phase phase angle of the three-phase distribution line through the detection unit, stores data in a built-in memory unit, and stores the phase angle and visual information of each phase on a standard by measuring itself; The arbitrary phase detection apparatus includes: a receiving module for receiving a time mark generated at every point at which a second time transmitted by the satellite navigation device starts and synchronizing an internal time; If the time mark signal is normally received more than once during the search, the received time mark signal and time information are sent to the frequency divider circuit to maintain the accurate current time, so that it is possible to detect the phase over a certain time even in a building or underground where GPS reception is impossible. A dispensing circuit, A communication unit for connecting an arbitrary phase detection device for checking a phase information of a power distribution line at an arbitrary place by a standard phase identification device and wired / wireless communication means; A converter unit for performing D / A conversion to a complex frequency code signal for transmitting measurement data to a standard phase identification device through a communication unit; A radio frequency receiver for receiving a radio frequency (RF) voltage phase signal detected by the electric field detection probe and transmitted; A detector for generating a phase angle by receiving a radio frequency voltage phase signal detected and transmitted by an electric field detection probe through a radio frequency receiver, substituting a pseudo waveform generated therein, and sending the generated phase angle data to a direct circuit (DSP); ; A detection probe for transmitting and receiving the detected phase signal using a radio frequency method;  When the detection command is dropped from the control unit, the current time is substituted into the phase angle data sent by the detection unit at the promised time, and the phase angle data including the detection time is sent to the control unit. An integrated circuit (DSP) for detecting the voltage phase angle of the measurement line by using the time correction signal output from the signal and the current time generated by the internal frequency dividing circuit; It records the data transmitted in real time from the integrated circuit (DSP) through the storage unit for a certain time, and internally every second based on the time mark signal received from the satellite after communication with the communication unit of the standard phase checking device through the communication unit. A control unit for generating the granular time data in the frequency division circuit and sending it to the integrated circuit (DSP) and instructing the integrated circuit (DSP) to detect a phase at a time promised by a pre-programmed sequence with a standard phase checking device; A time synchronization and standard phase detection apparatus using a time mark, characterized in that the storage unit for storing for a predetermined time the data transmitted in real time from the integrated circuit (DSP). The method according to claim 1; The standard phase identification device is a phase identification information and a unique ID of the phase identification device and visual information of the phase identification behavior to transmit data to a separate device when the information for later discrimination is necessary when the phase discrimination behavior is normally completed. Is stored in a separate memory capable of outputting data to the outside, and other data is automatically deleted, the time synchronization and standard phase detection apparatus using a time mark characterized in that it comprises a storage unit for recording and storing for the next action. The method according to claim 1; Standard phase confirmation device is a time synchronization and standard phase detection device using a time mark, characterized in that the internal time is synchronized by receiving a time mark of the GPS continuously. The method according to claim 1; When the random phase detection device is turned on, the time receiving the time mark that occurs every time the starting point of every second transmitted from the satellite through the GPS receiving module mounted on the random phase detection device to synchronize the internal time Visual synchronization and standard phase detection device using mark.

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