JP2021083228A - Snow removal device of power receiving/transforming facility case, snow removal device control method of power receiving/transforming facility case, and computer program - Google Patents

Abstract

To provide a snow removal device of power receiving/transforming facility case capable of performing efficient snow removal operation without consuming wasteful energy.SOLUTION: A snow removal device of a power receiving/transforming facility case has: a snow removal part 102 provided on a top face of a power receiving/transforming facility case; a snow accumulation amount measuring part 101 measuring a snow accumulation amount of the top face of the power receiving/transforming facility case; and a control part controlling a drive of the snow removal part according to an output of the snow accumulation amount measuring part. Also, a snow removal device control method of the power receiving/transforming facility case has; a step of detecting presence/absence of snow on the top face of the power receiving/transforming facility case; a step of measuring the snow accumulation amount of the snow when the snow is detected at the detection step; and a step of starting the snow removal part provided on the top face of the power receiving/transforming facility case when the measured snow accumulation amount is equal to or more than a first snow accumulation amount.SELECTED DRAWING: Figure 1

Description

An embodiment of the present invention relates to a snow removal device for a case for a power receiving / transforming facility, a method for controlling a snow removing device for a case for a power receiving / transforming facility, and a computer program.

Renewable energy (solar energy, wind power generation, etc.) power receiving and transforming equipment is often installed in heavy snowfall areas, and there is great demand for it to be installed outdoors due to topographical conditions. When installed outdoors, the power receiving and transforming equipment is housed in a case for the power receiving and transforming equipment, but it is necessary to manufacture a case that takes into consideration the housing strength and seismic strength of the case on the premise of the load due to snow cover. Alternatively, it is necessary to provide a separate roof to prevent snow from directly accumulating on the case for power receiving and transforming equipment. By taking such measures, there is a problem that the price of the case for power receiving equipment rises.

In addition, as a measure against snow accumulation, it is possible to install an electric heater on the upper surface of the case for power receiving and transforming equipment to melt the snow, but the temperature inside the case for power receiving and transforming equipment by driving the electric heater when there is no snowfall. There were problems such as rising and wasting energy by continuing to drive the electric heater.

Japanese Unexamined Patent Publication No. 2006-283389

When an electric heater is provided on the upper surface of the case for power receiving / transforming equipment to melt snow as a countermeasure against snow accumulation, the temperature inside the case for receiving / transforming equipment rises, and there is a risk that the power receiving / transforming equipment may break down. In addition, driving an electric heater to melt snow may waste energy and increase costs.

An object to be solved by the present invention is to provide a snow removal device for a case for a power receiving / transforming facility capable of performing efficient snow removal operation without consuming wasteful energy.

In order to solve the above problems, the snow removal device for the case for power receiving / transforming equipment according to the embodiment measures the amount of snow accumulated on the upper surface of the case for power receiving / transforming equipment and the snow removing portion provided on the upper surface of the case for power receiving / transforming equipment. It has a snow cover measurement unit and a control unit that controls the drive of the snow removal unit according to the output of the snow cover measurement unit.

Further, the snow removal device control method for the case for power receiving and transforming equipment according to the embodiment includes a step of detecting the presence or absence of snow on the upper surface of the case for power receiving and transforming equipment, and when snow is detected in the detection step, the snow is removed. It has a step of measuring the amount of snowfall and a step of activating the snow removal unit provided on the upper surface of the case for power receiving and transforming equipment when the measured amount of snowfall is equal to or greater than the first amount of snowfall.

Further, the computer program of the embodiment has a function of detecting the presence or absence of snow on the upper surface of the case for the power receiving / transforming equipment in the snow removing device of the case for the power receiving / transforming equipment, and when snow is detected by the detection function, the snow is removed. The function of measuring the amount of snowfall and the function of activating the snow removal unit provided on the upper surface of the case for the power receiving / transforming equipment when the measured amount of snowfall is equal to or greater than the first amount of snowfall are realized.

The perspective view which shows the structure of the case for the power receiving and transforming equipment which comprises the snow removal apparatus which concerns on 1st Embodiment. The figure which shows an example of the functional structure of the snow removal apparatus which concerns on 1st Embodiment. The figure which shows the start and stop operation of the snow removal apparatus which concerns on 1st Embodiment. The perspective view which shows the structure of the case for the power receiving and transforming equipment which comprises the snow removal apparatus which concerns on 2nd Embodiment. The figure which shows an example of the functional structure of the snow removal apparatus which concerns on 2nd Embodiment. The figure which shows the start and stop operation of the snow removal apparatus which concerns on 2nd Embodiment. The figure which shows the structure of the power receiving / transforming equipment management system which includes the snow removal device which concerns on 3rd Embodiment. The figure which shows the functional structure of the power receiving / transforming equipment management system which includes the snow removal device which concerns on 3rd Embodiment. The figure which shows the operation of the snow removal apparatus which concerns on 3rd Embodiment. The figure which shows the operation of the headquarters monitoring apparatus which concerns on 3rd Embodiment.

Hereinafter, embodiments for carrying out the invention will be described.

(First Embodiment)
The snow removal device 100 according to the first embodiment will be described with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view showing the configuration of a case 10 for power receiving and transforming equipment including the snow removal device 100 according to the first embodiment.

As shown in FIG. 1, the case 10 for power receiving and transforming equipment includes a base portion 1, a main body portion 2, a ceiling portion 3, and a snow removal device 100.

The base portion 1 is a pedestal to which the main body portion 2 is fixed. The main body portion 2 is provided on the upper portion of the base portion 1.

The main body 2 is a metal box, and has a high-voltage AC load switch, a transformer current transformer, a current transformer, and other power receiving and transforming equipment inside.

The main body 2 has a front door 4, a door handle 5, and a monitoring window 6. The front door 4 can be opened and closed by operating the door handle 5. The monitoring window 6 is installed so that the watt hour meter inside the main body 2 can be visually recognized from the outside of the main body 2.

The ceiling portion 3 is a plate-shaped metal building material detachably attached to the upper portion of the main body portion 2.

The snow removal device 100 is a device that removes snow on the upper surface of the ceiling portion 3. The snow removal device 100 has a snow cover measurement unit 101 and a snow removal unit 102 on the upper surface of the ceiling unit 3, and a control unit 103 (not shown) on the lower surface of the ceiling unit 3.

FIG. 2 is a diagram showing an example of the functional configuration of the snow removal device 100 according to the first embodiment.

As shown in FIG. 2, the snow removal device 100 includes a snow cover measurement unit 101, a control unit 103, and a snow removal unit 102, and the control unit 103 has a snow cover information acquisition unit 110, a determination unit 111, and an output control unit 112.

The snow cover measuring unit 101 is a sensor that measures the amount of snow on the ceiling 3, and measures the amount of snow by acquiring the pressure on the ceiling 3. The measurement of the amount of snowfall is not limited to the method of acquiring the pressure, and the amount of snowfall may be acquired from the height of the snowfall using an infrared sensor or the like.

The snow cover amount information acquisition unit 110 acquires the snow cover amount information from the snow cover amount measurement unit 101.

The determination unit 111 sends an instruction to the output control unit 112 by a control method described later based on the information of the snow cover amount information acquisition unit 110. The operator or the administrator inputs the first snowfall amount to be described later in the operation unit 113 in advance, and the determination unit 111 acquires the input first snowfall amount.

The output control unit 112 outputs to the snow removal unit 102 based on the signal from the determination unit 111.

The snow removing unit 102 receives a signal from the output control unit 112, and removes snow on the upper surface of the power receiving / transforming equipment case 10 based on the signal. The snow removing unit 102 may be a heat generating means that melts snow by generating heat. The heat generating means includes, for example, an electric heater, and by driving the electric heater, the snow on the upper surface of the case 10 for power receiving and transforming equipment is melted.

Next, the control method of the snow removal device 100 according to the first embodiment will be described.

FIG. 3 is a diagram showing start and stop operations of the snow removal device 100 according to the first embodiment.

In S101, first, the determination unit 111 of the control unit 103 acquires the snow amount information on the upper surface of the power receiving / transforming equipment case 10 from the snow amount information acquisition unit 110.

Next, in S102, the determination unit 111 determines whether or not the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is equal to or greater than the first amount of snow. The first amount of snowfall is a threshold value of the amount of snowfall that the case 10 for power receiving and transforming equipment can withstand a load by design. Depending on the situation, the first snowfall amount may be set by the operator or the manager himself, or may be designed so as to be variable depending on the snowfall situation. Further, the first snow cover amount may be controlled to be automatically changed depending on the snowfall situation.

If the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is less than the first amount of snow, the process returns to S101 without activating the snow removing unit 102.

When the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is equal to or greater than the first amount of snow, the process proceeds to the next step S103, and an instruction to activate the snow removing unit 102 is transmitted.

In S104, the determination unit 111 acquires the snow amount information on the upper surface of the power receiving / transforming equipment case 10 from the snow amount information acquisition unit 110.

Next, in S105, it is determined whether or not the amount of snow on the upper surface of the case 10 for power receiving and transforming equipment is less than the amount of second snow. The second amount of snowfall is a threshold value of the amount of snowfall that is determined to be sufficiently snow-removed by the ability of the snow-removing portion according to S103 and no further snow removal is required. Therefore, the second amount of snowfall is smaller than the amount of first snowfall. Depending on the situation, the second snowfall amount may be set by the operator or the manager himself, or may be designed so as to be variable depending on the snowfall situation. Further, the second amount of snow may be controlled to be automatically changed depending on the snowfall condition and the temperature.

When the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is equal to or greater than the second amount of snow (No in S105), the snow removing portion 102 is kept in the driving state and returns to S104.

On the other hand, when the amount of snow on the upper surface of the case 10 for the power receiving / transforming facility is less than the second amount of snow (Yes in S105), the drive of the snow removal unit 102 is stopped in S106 and the process returns to S101.

The control of the snow removal unit 102 of S100 to S106 is repeatedly executed at predetermined time intervals.

In this device, the snow removal ability may be controlled according to the amount of snow. That is, when the amount of snowfall is large, the snow removal operation may be performed with a high capacity, that is, a high calorific value, and when the amount of snowfall is small, the snow removal operation may be performed with a low capacity, that is, a low calorific value.

In the present embodiment, when snow is accumulated on the upper surface of the case 10 for power receiving and transforming equipment by a certain amount (first amount of snow) or more, the control unit 103 causes the snow removal unit 102 to perform the snow removal unit 102 based on the signal from the snow amount measuring unit. It is designed to melt the accumulated snow, and if the snow does not accumulate on the upper surface of the case 10 for power receiving and transforming equipment more than a certain amount, the snow removal unit 102 will not be activated, so wasteful energy will not be consumed. Efficient snow removal operation can be performed.

Moreover, in the present embodiment, control is performed to stop the drive of the snow removal unit 102 when sufficient snow melting is performed by driving the snow removal unit 102, so that efficient snow removal operation without consuming wasteful energy is performed. It can be performed.

Further, in the present embodiment, since efficient snow removal operation can be performed without consuming wasteful energy, it is possible to suppress the risk that the temperature inside the case 10 for the power receiving / transforming equipment rises too much.

The snow removal unit 102 may be driven so as to remove snow on the upper surface of the power receiving / transforming equipment case 10. Specifically, the snow removing unit 102 has a wiper, and the snow on the upper surface of the power receiving / transforming equipment case 10 may be removed by driving the wiper. Further, the snow removal unit 102 has a pipe for supplying hot water, and may be a snow melting means for melting snow by pouring hot water on it. Further, the snow melting means may inject a snow melting agent (antifreeze agent) instead of hot water to melt the snow.

(Second embodiment)
The second embodiment controls the snow removal device based on the information from the snow sensor.

The snow removal device 200 according to the second embodiment will be described with reference to FIGS. 4 to 6. The configuration of the snow removal device 200 having the same function as the snow removal device 100 of the first embodiment is designated by the same reference numerals and the description thereof will be omitted.

FIG. 4 is a perspective view showing the configuration of a case 10 for power receiving and transforming equipment including the snow removal device 200 according to the second embodiment.

As shown in FIG. 4, the case 10 for power receiving and transforming equipment includes a base portion 1, a main body portion 2, a ceiling portion 3, and a snow removal device 200.

The snow removal device 200 has a snow sensor 201, a snow amount measurement unit 101, and a snow removal unit 102 on the upper surface of the ceiling unit 3, and a control unit 203 (not shown) on the lower surface of the ceiling unit 3.

The difference in configuration from the first embodiment is that it has a snow sensor 201. In the first embodiment, the presence / absence of snow and the amount of snow on the upper surface of the power receiving / transforming equipment case 10 are acquired from the snow amount measuring unit 101, but in the second embodiment, the presence / absence of snow is determined by the snow sensor 201. get. Since the snow sensor 201 can more accurately acquire the presence or absence of snow on the upper surface of the power receiving / transforming equipment case 10 than the snow amount measuring unit 101, it is used as a means for acquiring the presence or absence of snow.

FIG. 5 is a diagram showing an example of the functional configuration of the snow removal device 200 according to the second embodiment.

As shown in FIG. 5, the snow removal device 200 includes a snow sensor 201, a snow amount measurement unit 101, a control unit 203, and a snow removal unit 102, and the control unit 203 is a snow information acquisition unit 202, a snow amount information acquisition unit 210, and a determination. It has a unit 211 and an output control unit 212.

The snow sensor 201 is a means for detecting the presence or absence of snow on the power receiving / transforming equipment case 10, and detects the presence or absence of snow by detecting moisture and temperature. As the snow sensor 201, a known snow detection sensor may be used.

The snow information acquisition unit 202 acquires information regarding the presence or absence of snow from the snow sensor 201.

Since the snow cover amount measuring unit 101 is the same as that of the first embodiment, the description thereof will be omitted.

The snow cover information acquisition unit 210 acquires snow cover information from the snow cover measurement section 101.

The determination unit 211 sends an instruction to the output control unit 212 by a control method described later based on the information of the snow information acquisition unit 202 and the snow cover amount information acquisition unit 210. The operator or the administrator inputs the first snowfall amount and the second snowfall amount in the operation unit 113 in advance, and the determination unit 211 acquires the input first snowfall amount and the second snowfall amount.

The output control unit 212 outputs to the snow removal unit 102 based on the signal from the determination unit 211.

The snow removing unit 102 receives a signal from the output control unit 212, and removes snow on the upper surface of the power receiving / transforming equipment case 10 based on the signal. Since the snow removal unit 102 is the same as that of the first embodiment, the description thereof will be omitted.

Next, the control method of the snow removal device 200 according to the second embodiment will be described.

FIG. 6 is a diagram showing start and stop operations of the snow removal device 200 according to the second embodiment.

In S201, first, the determination unit 211 of the control unit 203 acquires the presence or absence of snow on the upper surface of the power receiving / transforming equipment case 10 from the snow information acquisition unit 202.

Next, in S202, the determination unit 211 determines whether or not there is snow on the upper surface of the power receiving / transforming equipment case 10.

If there is no snow on the upper surface of the power receiving / transforming equipment case 10 (No in S202), the process returns to S201 without activating the snow removal unit 102.

If there is snow on the upper surface of the power receiving / transforming equipment case 10 (Yes in S202), the process proceeds to the next step S203.

In S203, the determination unit 211 acquires the amount of snow on the upper surface of the power receiving / transforming equipment case 10 from the snow amount information acquisition unit 210.

Next, in S204, the determination unit 211 determines whether or not the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is equal to or greater than the first amount of snow. Since the first snowfall amount is the same as that of the first embodiment, the description thereof will be omitted.

When the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is less than the first amount of snow (No in S204), the process returns to S201 without activating the snow removing unit 102.

On the other hand, when the amount of snow on the upper surface of the power receiving / transforming equipment case 10 is equal to or greater than the first amount of snow (Yes in S204), the process proceeds to the next step S205, and an instruction to activate the snow removing unit 102 is transmitted.

Since S206 and later have the same control as S104 and later of the first embodiment, the description thereof will be omitted.

The control of the snow removal unit 102 of S200 to S208 is repeatedly executed at predetermined time intervals, as in the first embodiment.

Further, in this device, the snow removal ability may be controlled according to the amount of snow cover, as in the first embodiment. That is, when the amount of snowfall is large, the snow removal operation may be performed with a high capacity, that is, a high calorific value, and when the amount of snowfall is small, the snow removal operation may be performed with a low capacity, that is, a low calorific value.

According to the present embodiment, by further adding the snow sensor 201 to the first embodiment and controlling the snow removal device 200 based on the signal of the snow sensor 201, the presence or absence of snow can be acquired more accurately, and the snow removal operation can be performed without malfunction. It can be carried out. As a result, the snow removal device 200 can efficiently perform snow removal operation without consuming wasteful energy, and can minimize the risk of temperature rise in the case 10 for power receiving and transforming equipment.

(Third Embodiment)
In the third embodiment, notification information is transmitted to the headquarters monitoring device when the temperature inside the case for power receiving / transforming equipment is equal to or higher than the set temperature.

The snow removal device 300 according to the third embodiment will be described with reference to FIGS. 7 to 10. The configurations of the snow removal device 300 having the same functions as those of the first embodiment and the snow removal device 100 and the snow removal device 200 of the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

FIG. 7 is a diagram showing a configuration of a power receiving / transforming equipment management system 400 including the snow removal device 300 according to the third embodiment.

The power receiving / transforming equipment management system 400 includes, for example, a plurality of power receiving / transforming equipment cases 10, a plurality of snow removal devices 300, and a headquarters monitoring device 500. The snow removal device 300 includes a snow sensor 201, a snow cover measurement unit 101, a snow removal unit 102, and a control unit 203 (not shown), and further includes a temperature sensor 301 and a terminal device 302.

The temperature sensor 301 is installed inside the power receiving / transforming equipment case 10 and is a means for acquiring the temperature inside the power receiving / transforming equipment case 10.

The terminal device 302 is installed inside or outside the case 10 for power receiving and transforming equipment, and is a means for transmitting notification information to the headquarters monitoring device 500, which is an external device, based on the temperature information acquired by the temperature sensor 301.

The plurality of terminal devices 302 can communicate with the headquarters monitoring device 500. Communication may be performed using wired communication or wireless communication.

FIG. 8 is a diagram showing a functional configuration of a power receiving / transforming equipment management system 400 including the snow removal device 300 according to the third embodiment.

As shown in FIG. 8, the snow removal device 300 includes a temperature sensor 301 and a terminal device 302 in addition to the snow removal device 200 according to the second embodiment. The terminal device 302 has a temperature information acquisition unit 303, a temperature determination unit 304, and a transmission unit 305, and a terminal ID is assigned to each of the plurality of terminal devices 302. In addition, the headquarters monitoring device 500 includes a receiving unit 501, a data processing unit 502, an output unit 503, and a database 504.

The temperature information acquisition unit 303 acquires temperature information from the temperature sensor 301 and outputs the temperature information to the temperature determination unit 304.

The temperature determination unit 304 has input the set temperature in advance, and determines whether or not to output to the transmission unit 305 according to the set temperature and the temperature information from the temperature information acquisition unit 303.

The transmission unit 305 is a means for transmitting notification information to the headquarters monitoring device 500 when an input is received from the temperature determination unit 304. The notification information includes information that links the terminal ID and the temperature information.

The reception unit 501 of the headquarters monitoring device 500 is a means for receiving the notification information and outputting it to the data processing unit 502 when the notification information is transmitted from the transmission unit 305 of the snow removal device 300.

The data processing unit 502 is a means for outputting to the output unit 503 based on the input from the receiving unit 501 and the terminal information of the database 504. The database 504 is a terminal information storage device in which the terminal ID and the location information of the power receiving / transforming equipment case 10 in which the terminal device 302 is installed are stored in association with each other.

The output unit 503 is a means for displaying warning information in order to notify the administrator or the observer when there is an input from the data processing unit 502.

Next, the operation of the snow removal device 300 according to the third embodiment will be described.

FIG. 9 is a diagram showing the operation of the temperature determination unit 304 in the snow removal device 300 according to the third embodiment.

In S301, first, the temperature determination unit 304 of the terminal device 302 acquires the temperature inside the case 10 for the power receiving / transforming equipment from the temperature information acquisition unit 303.

Next, in S302, the temperature determination unit 304 determines whether or not the temperature inside the case 10 for power receiving / transforming equipment is equal to or higher than the set temperature. The set temperature is a threshold value of the upper limit temperature that the power receiving / transforming equipment inside the power receiving / transforming equipment case 10 can withstand by design. Depending on the situation, the set temperature may be set by the operator or the administrator himself, or may be designed to be variable depending on the external environment. Further, the set temperature may be controlled to be automatically changed depending on the external environment.

If the internal temperature of the power receiving / transforming equipment case 10 is less than the set temperature, the process returns to S301 without notifying the headquarters monitoring device 500.

If the temperature inside the case 10 for power receiving and transforming equipment is equal to or higher than the set temperature, the process proceeds to the next step S303.

In S303, the temperature determination unit 304 outputs the notification information to the transmission unit 305, and the transmission unit 305 transmits the notification information to the headquarters monitoring device 500.

The control of the snow removal device 300 of S300 to S303 is repeatedly executed at predetermined time intervals.

Next, the operation of the headquarters monitoring device 500 according to the third embodiment will be described.

FIG. 10 is a diagram showing the operation of the headquarters monitoring device 500 according to the third embodiment.

In S401, first, the data processing unit 502 of the headquarters monitoring device 500 determines whether or not the receiving unit 501 has received the notification information from the transmitting unit 305 of the terminal device 302.

If the receiving unit 501 has not received the notification information from the transmitting unit 305 of the terminal device 302, the process proceeds to S405 and the operation ends.

When the receiving unit 501 receives the notification information from the transmitting unit 305 of the terminal device 302, the process proceeds to S402.

Next, in S402, the data processing unit 502 identifies the terminal ID included in the notification information received by the receiving unit 501.

Then, in S403, the data processing unit 502 reads the terminal information of the terminal ID received from the database 504.

Next, in S404, the data processing unit 502 outputs the terminal information and the temperature information to the output unit 503 that displays the warning information, and warns the administrator or the monitor.

The control of the headquarters monitoring device 500 of S400 to S405 is repeatedly executed at predetermined time intervals.

According to this embodiment, the snow removal unit 102 of the snow removal device 300 is driven, and when the temperature inside the case 10 for the power receiving / transforming equipment is equal to or higher than the set temperature, notification information is transmitted to the headquarters monitoring device to receive the snow removal unit 102. It is possible to detect a temperature rise inside the case 10 for substation equipment. As a result, it is possible to prevent the power receiving / transforming equipment from breaking down due to the driving of the snow removal unit 102, and to suppress the risk of incurring repair costs.

As described above, according to the first to third embodiments, efficient snow removal operation can be performed without consuming wasteful energy. Further, it is possible to provide a snow removal device for a case for power receiving / transforming equipment that suppresses the risk that the temperature inside the case for power receiving / transforming equipment rises too high.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 Base 2 Main body 3 Ceiling 4 Front door 5 Door handle 6 Monitoring window 10 Case for power receiving and transforming equipment 100 Snow removal device 101 Snow cover measurement unit 102 Snow removal unit 103 Control unit 110 Snow cover information acquisition unit 111 Judgment unit 112 Output control Unit 113 Operation unit 200 Snow removal device 201 Snow sensor 202 Snow information acquisition unit 203 Control unit 210 Snow amount information acquisition unit 211 Judgment unit 212 Output control unit 300 Snow removal device 301 Temperature sensor 302 Terminal device 303 Temperature information acquisition unit 304 Temperature determination unit 305 Transmission unit 400 Power receiving / transforming equipment management system 500 Headquarters monitoring device 501 Reception unit 502 Data processing unit 503 Output unit 504 Database

Claims (11)

The snow removal section provided on the upper surface of the case for power receiving and transforming equipment,
A snow cover measuring unit that measures the amount of snow on the upper surface of the case for power receiving and transforming equipment,
A control unit that controls the drive of the snow removal unit according to the output of the snow cover measurement unit,
A snow removal device for a case for power receiving and transforming equipment. The control unit activates the snow removal unit when the amount of snow measured by the snow amount measuring unit is equal to or greater than the first amount of snow.
The snow removal device for the case for power receiving and transforming equipment according to claim 1. The control unit stops the drive of the snow removal unit when the amount of snow measured by the snow amount measuring unit is less than the second amount of snow, which is smaller than the first amount of snow.
The snow removal device for the case for power receiving and transforming equipment according to claim 2. Further having a snow sensor for detecting the presence or absence of snow on the upper surface of the power receiving / transforming equipment case.
The snow removal device for the case for power receiving and transforming equipment according to claim 1. The control unit activates the snow removal unit when the snow sensor detects snow and the amount of snow measured by the snow amount measuring unit is equal to or greater than the first amount of snow.
The snow removal device for the case for power receiving and transforming equipment according to claim 4. The control unit stops the drive of the snow removal unit when the amount of snow measured by the snow amount measuring unit is less than the second amount of snow, which is smaller than the first amount of snow.
The snow removal device for the case for power receiving and transforming equipment according to claim 5. The snow removal section has a snow melting means.
The snow removal device for a case for power receiving and transforming equipment according to any one of claims 1 to 6. The snow removal unit has a heat generating means.
The snow removal device for a case for power receiving and transforming equipment according to any one of claims 1 to 6. A temperature sensor provided inside the case for power receiving / transforming equipment and measuring the temperature inside the case for power receiving / transforming equipment.
A transmitter that transmits notification information to an external device when the temperature measured by the temperature sensor is equal to or higher than the set temperature.
The snow removal device for a case for power receiving and transforming equipment according to any one of claims 1 to 8. Steps to detect the presence or absence of snow on the top surface of the power receiving and transforming equipment case,
When snow is detected in the detection step, the step of measuring the amount of snow accumulated in the snow and the step of measuring the amount of snow
When the measured amount of snowfall is equal to or greater than the first amount of snowfall, a step of activating the snow removal unit provided on the upper surface of the case for power receiving and transforming equipment, and
A method of controlling a snow removal device for a case for power receiving and transforming equipment. For snow removal equipment in cases for power receiving and transforming equipment
When information on the presence or absence of snow on the upper surface of the power receiving / transforming equipment case and information on the amount of snow accumulated are acquired, the snow is detected, and the acquired amount of snow is equal to or greater than the first amount of snow.
To realize the function of activating the snow removal section provided on the upper surface of the case for power receiving and transforming equipment.
Computer program.

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