JP6308509B1 - Seismic shut-off device and seismic shut-off method - Google Patents

Abstract

It is an object of the present invention to provide a seismic shut-off device and a seismic shut-off method that make it possible to clearly determine the cause of avoiding re-energization interruption by collecting the causes of re-energization interruption into a comprehensive pattern. In order to determine whether or not re-energization can be interrupted, when an earthquake that causes re-energization interruption for the pattern occurs, the breaker is interrupted and the earthquake that causes re-energization interruption is the earliest. In this case, it is determined that whether or not re-energization is interrupted is determined by storing a record of occurrence of the re-energization and reading the record when re-energizing. [Selection] Figure 2

Description

  The present invention relates to a seismic shut-off device and a seismic shut-off method that re-shut off energization after a seismic shut-off via a breaker.

  With the widespread use of electrical products and the shift to electrification of heat sources, in recent years, the occurrence of fires associated with large-scale earthquakes is said to be the dominant factor. In addition to electrical fires caused by the occurrence of an earthquake due to the fall of electrical equipment, etc., when an earthquake occurs, electrical products may be unintentionally unintentionally when power is turned off and then turned on again. A large percentage of fires are caused by re-operation, that is, secondary fires.

  Conventionally, in order to prevent the secondary fire, a device for operating a circuit breaker during re-energization has been proposed. That is, when an earthquake is detected by the seismic sensor and the power circuit is interrupted, the power failure state is memorized, and when the power circuit is restored, the stored power failure state information is read out for wiring. Current-carrying prevention device that outputs a trip signal to a circuit breaker (see, for example, Patent Document 1), a seismic sensor that detects seismic motion, and a determination that outputs a control signal when the seismic sensor detects seismic motion that exceeds a predetermined value Unit, a first output unit that outputs measurement information from the determination unit to the outside, and a second output unit that outputs the control signal to the outside, wherein the main breaker is blocked by the control signal In the case where a power failure occurs, a seismic device (for example, see Patent Document 2) that stores measurement information and shuts off the main breaker when power is restored has been proposed. In Patent Document 2, earthquake detection information is acquired by receiving an external emergency earthquake bulletin.

Japanese Patent Application Laid-Open No. 9-289831 Japanese Patent Laying-Open No. 2015-190887

  By the way, after the occurrence of an earthquake, the supply of electricity before re-energization has a plurality of different causes. The most typical cause is a case where the relay circuit is operated by detecting a large preset shaking, and the breaker is shut off. In addition, the power company temporarily stops power transmission, When power supply is stopped on the primary side of the breaker, there may be a case where collapse or the like occurs due to the breaker installation environment (the ground, the aging of the building itself, etc.) even if the shaking itself is not large.

  On the other hand, the breaker may be interrupted due to different causes from earthquakes, such as wiring interruption due to overcurrent detection, earth leakage interruption due to leakage detection, etc. Immediate interruption may cause inconveniences in an environment where interruption must be avoided as much as possible.

  However, regarding the possibility of re-energization interruption, it is considered that it is practically impossible to cause the seismic interruption device to determine every possible pattern and to make this judgment by the seismic interruption device. On the other hand, if the re-energization is activated for a single cause uniformly as in the prior art, from the viewpoint of preventing secondary fires, the cause for the re-energization cannot be covered. There is a possibility that the inconvenience that it may occur due to a cause to avoid the energization interruption may occur.

  The present invention is for solving the above-mentioned problems, and various causes for determining whether or not re-energization can be interrupted are aggregated into a settable pattern to clearly determine the cause for avoiding re-energization interruption. An object is to provide a seismic cutoff device and a seismic cutoff method that can be used.

  In order to achieve the above object, the seismic shock interrupting device according to the present invention is the earliest one of a plurality of different causes due to the occurrence of an earthquake in order to determine whether or not the re-energization can be interrupted. The main feature is that it has a configuration in which a record that the breaker is cut off is stored, and this record is read at the time of re-energization to determine whether re-energization is cut off.

That is, the seismic isolation device according to the present invention has at least detection means, storage means, determination means, and cutoff control means, and the detection means first shakes at the place where the breaker is installed. Upon detection, an earthquake measurement start signal is generated, and then an earthquake occurrence record holding interrupt signal is generated from the detected shaking information, with detection of shaking information of a predetermined magnitude as a first threshold, Using the detection of predetermined information acquired from a plurality of different sources after generation of an interrupt signal for holding an earthquake occurrence record as a second threshold, a record holding interrupt signal for seismic interception is generated from the detected predetermined information . The storage means is an interrupt signal for holding the earthquake occurrence record and an interrupt signal for holding the seismic interruption, and receives the signal acquired first, and records the earthquake occurrence record or the seismic interruption record. Remember. Further, the determination means deletes the earthquake occurrence record retention interrupt signal from the storage means when the earthquake retention record retention interrupt signal has not been generated, and the earthquake occurrence interruption interrupt signal generated first. Is received, and the breaker shut-off process is determined, the stored seismic shut-off record is read, the re-shut-off process is determined during energization after the seismic shut-off, and the shut-off control means is The blocking process and the re-blocking process are performed in order to receive determination information from the determination unit and operate the breaker blocking mechanism.

  According to this configuration, first, the record retention is performed when the first threshold is detected. However, this record is not used as information for determining whether or not the direct re-energization can be interrupted. In consideration of the occurrence of a cause that should be interrupted at the time of re-energization after the elapse of time, a second threshold is provided, and among the causes that occur with a time difference, by receiving the earliest seismic interrupt signal By executing the seismic block and storing this information, the next time the power is re-energized, the seismic block information is read out to determine the re-energization after the seismic block. Can be performed.

In the re-blocking process, the determination unit may delete the record of the seismic block that has been read out from the storage unit in the determination of the re-blocking process. With this configuration, in the case of re-energization after the re-blocking process, it can be energized as in normal operation.

The second threshold includes at least detection of shaking greater than the first threshold, detection of power supply being stopped on the primary side of the breaker after detection of the first threshold, and installation of the second threshold. Detecting that the breaker that is tilted more than a predetermined angle.

Furthermore, in order to achieve the above object, the seismic isolation method according to the present invention includes:
Measuring the current value of the electric circuit supplied to the secondary side via the breaker;
The measured current value is equal to or less than a predetermined current value, detecting a shake of a place where the breaker is installed, and generating an interrupt signal for starting an earthquake measurement;
Detecting shaking information of a predetermined magnitude as a first threshold and generating an interrupt signal for holding an earthquake occurrence record;
Receiving the earthquake occurrence record holding interrupt signal and storing the earthquake occurrence record;
Detecting, as a second threshold, information acquired from a plurality of different sources after generating the earthquake occurrence record retention interrupt signal, and generating an earthquake seismic interrupt record retention interrupt signal;
The earthquake occurrence record holding interrupt signal and the seismic interception record keeping interrupt signal, receiving the signal acquired first, and storing the earthquake occurrence record or seismic interception record;
Receiving the interrupt signal of the earliest seismic block, and determining the breaker blocking process;
A step of performing a shut-off process to operate the shut-off mechanism of the breaker according to the determination;
If the seismic interception record retention interrupt signal is not generated, the earthquake occurrence record retention interrupt signal is deleted from the storage means, and the earliest earthquake seismic interception interrupt signal is received, Determining the breaker shut-off process, and after the shut-off process, reading the stored record of the earliest seismic shut-off, determining the re-shut-off process upon energization after the seismic shut-off,
The determination of the re-blocking process receives the determination information and performs the re-blocking process to operate the breaker blocking mechanism;
It is characterized by having.

  ADVANTAGE OF THE INVENTION The seismic-sensing interruption | blocking apparatus and seismic-sensing method concerning this invention show the effect that it can prevent the secondary fire at the time of re-energization exactly while preventing the electric fire at the time of an earthquake occurrence.

In addition, the seismic interruption according to the present invention can distinguish between non-earthquake interruption, that is, overcurrent interruption and earth leakage interruption during the interruption process. Since it is possible to accurately determine whether to execute the process and to operate the breaker, there is an effect that it is possible to avoid unintended blocking by the user.

Furthermore, since it is possible to perform re-interruption processing even for intermittent occurrences of medium-scale earthquakes such as swarm aftershocks, it is possible to achieve more accurate secondary fire prevention.

FIG. 1 is a block configuration diagram of a seismic isolation device according to the present invention. FIG. 2 is a block diagram showing a first modified example of the seismic shock interrupter according to the present invention. FIG. 3 is a block diagram showing a second modified example of the seismic shock interrupter according to the present invention. FIG. 4 is a time chart showing an example of the operation of the seismic cutoff device according to the present invention. FIG. 5 is a flowchart showing the seismic isolation method according to the present invention. FIG. 6 is a time chart illustrating an operation example of the seismic shock interrupter according to the second embodiment. FIG. 7 is a process flow diagram of the seismic isolation device according to the second embodiment.

    Referring to FIG. 1, reference numeral 1 denotes an earthquake-sensing cutoff device according to the present invention. In the present embodiment, the seismic isolation device 1 is a three-phase three-wire electric system, which is a three-phase secondary side (load side) of the main electronic breaker B, that is, an R phase and an S phase (ground phase). And T phase are connected to R phase and T phase. However, the electrical system is not limited to the present embodiment, and the main electronic breaker B may be a heat sensing breaker in addition to the electronic breaker. Further, instead of the main electronic breaker B, it may be connected to a specific branch breaker (not shown). Hereinafter, in the present embodiment, it is assumed that the breaker is the main electronic breaker B and is connected to the R phase and the T phase.

  The seismic sensing interrupting device 1 is typically installed in the distribution board where the electronic breaker B is installed or in the vicinity of the distribution board (not shown). Thus, since the seismic-sensing cutoff device 1 according to the present invention can be externally connected to a breaker that does not have a seismic function, it is not necessary to replace the breaker itself that has a seismic function. A seismic function can be added at low cost.

  The earthquake-sensing cutoff device 1 includes a detection unit 11 that detects shaking such as an earthquake. As described above, the seismic shock interrupting device 1 includes the detection unit 11 directly in the device, so that the place where the seismic shock interrupting device 1 is installed (usually in the distribution board or near the distribution board as described above). Can be detected. Some conventional seismic shut-off devices have a communication function, receive seismic intensity information from emergency earthquake bulletins, etc., convert such information into breaker shut-off signals, and shut off the breaker. Depending on the individual installation environment such as the building, the ground, etc., there may be a separation between the seismic intensity information and the actual shaking. When such separation occurs, there arises a disadvantage that it is blocked in a situation that should not be blocked. Since the seismic isolation device 1 according to the present invention is installed in a place where the vibration is actually generated and detects the shake in the installation place, the above-described disadvantage does not occur.

  The detection unit 11 is not limited to a specific configuration as long as it detects shaking and generates an interrupt signal, but preferably a MEMS chip having a low G acceleration sensor suitable for acceleration detection in the X and Y directions. It is desirable to be composed of Therefore, for example, the detection unit 11 is preferably configured by a capacitance type detection element that actually detects acceleration and a signal processing unit that amplifies, synchronously detects, and rectifies a signal obtained by the detection element. . In the initial setting, even when the apparatus is not installed horizontally, such inconvenience can be avoided if a correction unit that performs correction processing is provided. The correction unit may be a known one.

  The storage unit 12 detects the shaking by the detection unit 11 and stores the generated interrupt signal when a predetermined threshold described later is reached. Since the stored data is read at the time of re-energization and is erased after the reading, a readable / writable nonvolatile memory is preferable.

  When the detection unit 11 detects a shake, the determination unit 13 performs a predetermined calculation process to determine the threshold value, immediately executes a control program for the seismic shock blocking process, and stores the data in the storage unit 12. After the shut-off process, the data is read from the storage unit 12, and the control program for the re-shut-off process is executed when energized. Therefore, the determination part 13 should just be specifically comprised from the said control program and CPU which performs this. The control program may be stored in the storage unit 12.

The shut-off control unit 14 actually activates the shut-off mechanism of the electronic breaker B by the interrupt signal when the judgment unit 13 determines the execution of the shut-off process and the re-shut-off process. Specifically, it may be outputted to the trip circuit of the electronic breaker B and the electronic breaker B may be shut off. Note that if the electronic breaker B has a leakage breaker function, the breaker mechanism may be operated by supplying a pseudo-leakage current to the electronic breaker B.

  In the present invention, as described above, the drive source of the seismic shock interrupting device 1 is configured to receive power supply by being connected to the secondary side of the electronic breaker B. A unique drive source such as a secondary battery may be provided in itself. In this case, at the time of the normal operation, the secondary battery is set to the charging mode, and the circuit configuration may be configured to switch to the power supply mode at the same time as the occurrence of the earthquake.

In Figure 1, the detection portion 11 of the seismic shutoff device 1, storage unit 12, a determination unit 13 and a blocking controller 14 unit has been described a mode of connecting to an external electronic circuit breaker B, the present invention, the unit The configuration is not limited. For example, as shown in Figure 2, connect only detection unit 11 to the outside of the electronic circuit breaker B, the storage unit 12, determination unit 13, an interruption control unit 14 may be incorporated in the electronic circuit breaker, as shown in Figure 3, detector 11, storage unit 12 may be incorporated into the determination unit 13 and all the cutoff controller 14 electronic circuit breaker in B. In the above description, the CPU of the determination unit 13 has been described with respect to the form of the unit itself. However, the CPU of the electronic breaker B may be used.

  FIG. 4 is a time chart showing an operation example (first embodiment) of the seismic shock interrupter according to the present invention.

  By the way, secondary fire patterns resulting from re-energization after the occurrence of an earthquake are generally summarized into the following three. That is, re-energization after the occurrence of an earthquake of a predetermined seismic intensity or higher, re-energization after interruption due to power transmission stop by an electric power company, re-energization after collapse of a house or the like. Therefore, the seismic isolation device 1 according to the present invention has a function of detecting these three patterns.

  If a shake due to an earthquake occurs during normal operation of the electronic breaker B (operation in a state where no shake due to an earthquake has occurred), the seismic measurement mode is entered and seismic measurement is started (Se1). In the seismic measurement mode, when the shaking has converged, the seismic measurement is terminated (Se2) and the normal operation is resumed.

  The seismic measurement mode may be activated at the same time that the detecting unit 11 detects the shaking, but is set to enter the seismic measuring mode after detecting a certain shaking (for example, 8.0 gal equivalent to seismic intensity 3). But you can. After the earthquake measurement is started, if a predetermined shaking is detected as the first threshold value (for example, 80.0 gal equivalent to a seismic intensity of 4 or more), an earthquake occurrence record is recorded as a preparation stage for the interruption process and the re-interruption process described later. Start (Th1). That is, the interrupt signal for the earthquake occurrence record retention is recorded and retained in the storage unit 12 (M1). However, at this time, the electronic breaker B is not shut off. In addition, when the shaking has converged without reaching the second threshold described later, the earthquake measurement is completed as described above (Se2), and it is not necessary to execute the shut-off process, so the occurrence of the earthquake recorded in the storage unit 12 The record hold interrupt signal (M1) is erased.

  After the detection of the first threshold, a plurality of patterns are generated as the second threshold. In any pattern, the seismic cutoff device 1 generates an interrupt based on the first one generated The signal is recognized as an interrupt signal for the shut-off process and re-shut-off process of the electronic breaker B.

  Conventionally, when a predetermined seismic seismic interruption cause occurs, data indicating the interruption cause is stored, and data that is read when energized is read and re-blocking processing exists, but the present invention is obtained from a plurality of different generation sources. As the record keeping of the seismic block, the first threshold value that does not immediately perform the blocking process is set.

  For example, after detecting the first threshold detection, if a first level of the second threshold is detected, for example, if a level of vibration that causes a seismic block is detected (for example, 110.0 gal equivalent to a seismic intensity of 5 or higher) Is started recording (Th2a). (In this case, the record held as M1 may be processed so as to be erased or overwritten.) In addition, along with the occurrence record, the determination unit 13 determines the blocking process, and the blocking control unit 14 The interruption process at the time of occurrence is executed (Tr1a). In addition, the recording is held in the storage unit 12 by the generation recording start (M2). Since this recording is based on the second threshold value, when power is supplied again (Rp1), the determination unit 13 reads the stored record from the storage unit 12 and executes the re-blocking process on the blocking control unit 14 (Rt1).

  Next, as a second pattern of the second threshold, a case will be described in which the power supply is interrupted by a power supply stop (power supply stop on the primary side of the electronic breaker B) by the power company.

  In this case, if the first pattern (corresponding to seismic intensity of 5 or higher) occurs in advance, the record is already held to execute the shut-off process and the re-shut-off process (M2), so that the operation is not performed. In other words, the second pattern operates when the record holding (M1) is performed by the first threshold. Therefore, the threshold value of the second pattern is a case where an additional condition (AND condition) for stopping power supply on the primary side of the electronic breaker B is satisfied along with detection corresponding to seismic intensity 4. That is, the recording start in the case of the second pattern is a detection corresponding to a seismic intensity of 4 or higher already occurring (Th2b), and the interruption process is performed by an interruption process (Tr1b) from the outside (electric power company). Done passively. Since the retained record (M2) is also based on the second threshold value, when the power is re-energized (Rp2), the retained record is read from the storage unit 12 and the re-blocking process is executed (Rt2). .

  Next, as a third pattern of the second threshold value, a case where collapse (inclination) occurs at the installation location of the seismic interrupter 1 will be described (in this embodiment, collapse is a certain level or more) To tilt at an angle of).

  In this case, when the first pattern or the second pattern is generated in advance, it is not recorded because it is recorded and held for executing the blocking process and the re-blocking process (M2, M3). That is, the condition for reaching the second threshold value is a case in which an earthquake having a seismic intensity of 5 or higher does not occur and no interruption by the electric power company occurs and the collapse occurs. In the present embodiment, the case where the collapse occurs after the end of the earthquake measurement (Se2) is shown, but the case where the collapse occurs during the record holding (M1) by the first threshold detection is also applicable. . On the other hand, since the collapse may occur after the end of the earthquake measurement (Se2), the third pattern is operated. As described above, if an acceleration sensor is used for the detection unit 11, not only the detection of shaking due to an earthquake, but also the inclination of a predetermined angle (for example, 20 degrees) from the difference from the initial setting (horizontal state). Since it can be detected, it can be realized. Conventional re-interruption processing was only intended for detection of earthquake shaking, but the present invention is remarkable in that it can detect anything other than earthquake shaking itself and that can cause secondary fires during re-energization. There are significant differences. Since this function can be detected even when a collapse occurs due to a cause other than an earthquake, it is possible to prevent a wider range of secondary fires.

  As described above, in the third pattern, the second threshold is set to the occurrence of the collapse, that is, the case where the second pattern is inclined at a predetermined angle or more, and recording is started when the collapse occurs (Th2c). At this time, along with the occurrence record, the determination unit 13 determines the blocking process, and causes the blocking control unit 14 to execute the blocking process at the time of occurrence (Tr1c). By starting the generation recording, the recording is held in the storage unit 12 (M4). Since this recording is based on the second threshold, when the power is turned on again (Rp3), the stored recording is read from the storage unit 12 and the re-blocking process is executed (Rt3).

  In the present embodiment shown in FIG. 4, for convenience of explanation, an example in which the second threshold generation pattern occurs in the order of the first pattern to the third pattern as a second threshold generation pattern is shown. If the collapse is detected first after the occurrence of seismic intensity 4 strong, the blocking process and the re-blocking process are performed according to the third pattern. That is, among the first pattern to the third pattern, the earliest one is set as a record holding target.

  FIG. 5 is a flowchart showing the seismic isolation method according to the present invention.

  First, current value measurement is performed during normal operation (S101). By making the measurement of the current value a precondition for executing the seismic seismic interruption method according to the present invention, it becomes possible to distinguish between a seismic interruption and an interruption due to an overcurrent or an earth leakage (those having an earth leakage interruption function). The re-blocking process described later can be appropriately executed. If the measured current value is within the specified value (Y in S102), if a shake due to an earthquake occurs, seismic data is acquired (S103) and the seismic measurement mode is entered (Y in S105). In the case of a shake that does not lead to the start of the earthquake measurement mode (for example, a slight shake) (N in S105), the process returns to the current measurement in S101. In the current measurement, when an unspecified current value is measured (N in S102), the breaker is shut off as an abnormal current is generated (S104). This is the case for example of overcurrent interruption or earth leakage interruption.

  After entering the seismic measurement mode, if the occurrence of a shake equivalent to a predetermined seismic intensity (corresponding to a seismic intensity of 4 or higher in this embodiment) is detected as the first threshold (Y in S106), interruption of record holding of seismic intensity 4 is generated A signal is generated and recorded (S107). After that, when the occurrence of a larger shake (corresponding to a seismic intensity of 5 or higher in this embodiment) is detected as the second threshold (Y in S108), an interrupt signal for holding a seismic intensity of 5 strong is generated and is generated. Recording is performed (S109).

  Furthermore, when the seismic intensity of 5 or higher does not occur as the second threshold and the power company cuts off the power supply (Y in S110), a record of seismic intensity of 4 or higher is retained (S111). On the other hand, if the seismic intensity of 5 or higher does not occur and there is no interruption of power supply by the electric power company (N of S110), the record of seismic intensity of 4 or higher is deleted (S112).

  In addition, when seismic intensity 4 strength as the said 1st threshold value did not generate | occur | produce (N of S106), it is judged whether an earthquake measurement mode is continued (S105).

  As another second threshold value, if the collapse (slope of a certain level or more) occurs after the recording in S112 is erased (Y in S113), the collapse is recorded (S114). On the other hand, if no collapse has occurred (N in S113), the earthquake is considered to have converged, and the process returns to the current value measurement in S101.

  Record of the occurrence of seismic intensity 5 (S109), interruption due to power supply interruption by the power company (record of seismic intensity 4 occurrence (S111), collapse record (S114), along with the record of the first occurrence, A shut-off process is performed (S115) After that, when power is supplied again (S116), the breaker is shut off again (S117).

  FIG. 6 is a time chart illustrating an operation example of the seismic shock interrupter according to the second embodiment. As described above, the patterns of secondary fires caused by re-energization after the occurrence of an earthquake are generally aggregated into three. However, even if the seismic intensity is moderate, if there is a swarm in a short time, a secondary fire may occur during re-energization. Therefore, in the present embodiment, the earthquake swarming is also added as the second threshold pattern 4.

  As in the first embodiment, when a vibration corresponding to a seismic intensity of 4 or more occurs between the start of seismic measurement (Se1) and the end of seismic measurement (Se2), the occurrence recording is started (Th1) and the record is retained (M1). In the present embodiment, the number of earthquake occurrences is counted (C1) along with the record keeping. The number of earthquake occurrences may be provided with a counter unit that counts the number of times in the detection unit.

  In the first embodiment, if any pattern corresponding to the second threshold value does not occur after the occurrence of a shake equivalent to a seismic intensity of 4 or higher, the record is erased and the normal operation is resumed. After the end of measurement (Se2), time measurement is started by a timer (T1). If the earthquake swarm corresponding to a seismic intensity of 4 or higher is defined as a swarm earthquake within a predetermined time (for example, within 5 minutes) in advance, the earthquake corresponding to a seismic intensity of 4 will occur within 5 minutes. In this case, the occurrence record is started again (Th1 ′) and the record is retained (M1 ′). In this embodiment, the number of times of this earthquake is added to the number of occurrences of the foreshock and counted as the record is retained. (C1 ′).

  Furthermore, if any pattern related to the second threshold value does not occur after the second occurrence of seismic intensity equivalent to 4 seismic intensity, the record is erased and the normal operation is resumed. After the end (Se2), time measurement is started again by the timer (T2). When an earthquake corresponding to seismic intensity 4 occurs within 5 minutes, the occurrence record is started again (Th2d), and the record is retained (M5). At this time, if the number of earthquake occurrences corresponding to a seismic intensity of 4 or more within a predetermined time is defined as 3 times, the determination unit 13 determines that the second threshold value has been reached with the third record retention, The electronic breaker B is cut off at the time of occurrence via the cutoff control unit 14 (Tr1d). Thereafter, a re-blocking process is executed (Rt4) during re-energization (Rp4).

  FIG. 7 is a process flow diagram of the seismic isolation device according to the second embodiment. First, the counter count is initially set (i = 0) (S201). Thereafter, current value measurement (S202), determination of whether the current value is within the specified current value (S203), breaker cutoff (S204) when the current value is outside the specified value (N in S203), and current value within the specified value (S203) Y), whether or not to enter the seismic measurement mode (S206), whether or not seismic intensity 4 is strong (S207), and whether or not seismic intensity 4 is strong (N in S207) Since the process is the same as that of FIG. 3 according to the first embodiment until S206) and the seismic intensity of 4 strong (Y in S207) is recorded (S209), the description is omitted.

  Along with the record of occurrence of seismic intensity 4 (S209), the counter determines whether the number of recordings within a predetermined time is less than a predetermined number (i <n) (S210), and if it is less than the predetermined number (Y in S201) The counter is incremented (i = i + 1), and the number of occurrences is recorded (S212).

  Thereafter, when the earthquake measurement is finished (S213), the time measurement is started by the timer (S214). Note that FIG. 7 omits the description of the plurality of patterns of the second threshold as shown in FIG. 5, and actually, it occurred first with the first pattern to the third pattern. The re-blocking process is performed based on the pattern (not shown).

  If a seismic intensity of 4 is generated within a predetermined time after the start of the time measurement (Y in S215), the time measurement is finished (S216), and the processes after the recording of seismic intensity 4 in S209 are repeated. If the seismic intensity of 4 is not generated within the predetermined time (N in S215), the record is deleted (S208), and the process returns to the current value measurement in S202 (S202).

  In the repetition of the processing after the recording of seismic intensity 4 strong in S209, if the number of recordings within the predetermined time exceeds the predetermined number (N in S210), the electronic breaker B is cut off and re-energized (S218). ), The electronic breaker B is shut off again (S219).

DESCRIPTION OF SYMBOLS 1 Seismic shut-off device 11 Detection part 12 Memory | storage part 13 Judgment part 14 Blocking control part B Breaker

Claims (10)

A seismic interrupting device that re-energizes the energization after the seismic interrupting via a breaker,
Detecting a shake at a place where the breaker is installed, and using the detected information as a first threshold for detecting an earthquake measurement start signal and a predetermined magnitude of shake information, the earthquake is detected from the detected shake information. An occurrence record retention interrupt signal and a detection of predetermined information acquired from a plurality of different sources after the generation of the earthquake occurrence record retention interrupt signal is used as a second threshold, and seismic isolation is performed from the detected predetermined information. Detecting means for generating a record holding interrupt signal;
A storage means for receiving the first acquisition signal of the earthquake occurrence record retention interrupt signal and the seismic interception record retention interrupt signal, and storing the earthquake occurrence record or the seismic interception record;
If the seismic interception record retention interrupt signal is not generated, the earthquake occurrence record retention interrupt signal is deleted from the storage means, and the earliest earthquake seismic interception interrupt signal is received, A determination means for determining the re-blocking process upon determining the breaker blocking process, reading the stored seismic blocking record, and energizing after the seismic blocking;
In order to accept the determination information by the determination means and operate the breaker shut-off mechanism, shut-off control means for performing the shut-off process and the re-shut-off process,
A seismic isolation device characterized by comprising:   2. The seismic cutoff device according to claim 1, wherein the determination unit erases the record of the seismic cutoff read out by the determination of the re-blocking process from the storage unit together with the re-blocking process.   The feeling according to claim 1 or 2, wherein a seismic isolation unit comprising the detection means, storage means, determination means and cutoff control means is connected to the secondary side of the breaker with a dedicated connection cable. Seismic cutoff device.   The detection means is connected to the secondary side of the breaker with a dedicated connection cable, and the storage means, determination means, and shut-off control means are incorporated in the breaker. 2. Seismic shut-off device according to 2. 3. The seismic shock interrupting device according to claim 1, wherein a seismic shock interrupting unit comprising the detecting means, the memory means, the determining means, and the shutting control means is incorporated in the breaker.   The second threshold includes at least detection of shaking greater than the first threshold, detection of power supply stop on the primary side of the breaker after the detection of the first threshold, and a predetermined breaker installed 6. The seismic isolation device according to claim 1, further comprising: detecting that the angle is more than an angle.   The said interruption | blocking control means can perform the said interruption | blocking process and the said re-interruption process only about the specific branch breaker besides the main breaker arrange | positioned at the distribution board. The earthquake-sensing cutoff device according to any one of the above.   The cut-off process and the re-cut-off process are performed via an electronic breaker that includes a CPU that measures and controls a supplied current value. Seismic isolation device.   The detection unit includes a counting unit that counts the number of occurrences when the detection of the shaking applied to the first threshold is intermittently generated at a predetermined interval, and is equal to or greater than the predetermined number of the intermittent generations. The seismic isolation device according to any one of claims 6 to 8, wherein the second threshold is detected. It is a seismic seismic shut-off method that re-shuts off the energization after seismic seismic shut-off via a breaker,
Measuring the current value of the electric circuit supplied to the secondary side via the breaker;
The measured current value is equal to or less than a predetermined current value, detecting a shake of a place where the breaker is installed, and generating an interrupt signal for starting an earthquake measurement;
Detecting shaking information of a predetermined magnitude as a first threshold and generating an interrupt signal for holding an earthquake occurrence record;
Receiving the earthquake occurrence record holding interrupt signal and storing the earthquake occurrence record;
Detecting, as a second threshold, predetermined information acquired from a plurality of different sources after the generation of the earthquake occurrence record retention interrupt signal, and generating an earthquake seismic interrupt record retention interrupt signal;
The earthquake occurrence record holding interrupt signal and the seismic interception record keeping interrupt signal, receiving the signal acquired first, and storing the earthquake occurrence record or seismic interception record;
Receiving the interrupt signal of the earliest seismic block, and determining the breaker blocking process;
A step of performing a shut-off process to operate the shut-off mechanism of the breaker according to the determination;
If the seismic interception record retention interrupt signal is not generated, the earthquake occurrence record retention interrupt signal is deleted from the storage means, and the earliest earthquake seismic interception interrupt signal is received, Determining the breaker shut-off process, and after the shut-off process, reading the stored record of the earliest seismic shut-off, determining the re-shut-off process upon energization after the seismic shut-off,
The determination of the re-blocking process receives the determination information and performs the re-blocking process to operate the breaker blocking mechanism;
A seismic isolation method characterized by comprising:

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