KR20150003033U - Switchgear Having Monitoring Temperature - Google Patents

Abstract

In the present invention, by attaching the temperature sticker indicating the internal temperature of the switchboard to the door of the switchgear panel, it is possible to reduce the installation cost, which is a problem of the conventional technology, and the temperature display And presents a switchboard having a function.

Description

[0001] The present invention relates to a Switchgear Having Monitoring Temperature

The present invention relates to a switchboard having a temperature display function, and more particularly, by attaching a temperature sticker having a temperature display function to the outside of a switchboard, the temperature of the door and the inside of the switchboard can be measured and displayed at 20 to 100 ° C So that the operator can visually confirm the temperature state of the power transmission / reception panel easily from the outside.

As is well known, switchgear converts high voltage power to low voltage in a wide range of power consumers such as residential areas, buildings, schools, factories, ports, airports, water supply and sewage treatment plants, substations, heavy industrial plants, subways, chemical complexes, It is installed in the water distribution system supplied to the facility and is used for power monitoring, control and protection.

Such a switchboard is an insulated enclosure equipped with a switchgear door for restricting direct contact with the outside and for inspecting and maintaining the inside of the switchboard in consideration of safety against electric shock and fire in the process of using the switchgear, Considering the reliability of the supply voltage, installation of various protective devices such as circuit breakers and lightning arresters in the enclosure is essential.

As the usage of electric power is rapidly increased, there is an increase in fire and power failure accidents due to deterioration and connection failure at the connection parts and power supply and high voltage electric facilities used in buildings and industrial factories. In addition, there is a risk of fire due to a temperature rise due to heat generated from electric power equipment that processes voltage conversion and the like, and a flame generated due to a problem of electric power equipment.

Meanwhile, in order to connect the power transmission conductors to each other, screws or the like are used to fix the two side conductors to each other. Unexpected high temperatures may occur due to the screw loosening or the oxidation of the conductors. Most circuit breakers are installed to protect the circuit or load device from overcurrent in the switchgear and to minimize the effect of the accident. A high-voltage circuit breaker to which a high voltage of several to several tens of kilo-volts is applied among these circuit breakers is electrically connected and disconnected by mutually connectable and detachably formed bus clips. In consideration of current capacity, That is, a bus-bar formed in a plate shape using a conductive material for rapid connection is used as a connector terminal for interconnecting each other.

The boom clip of the high-voltage circuit breaker generates a heat phenomenon mainly by heat when the electric conductor is energized. However, since the booth clip is loosened due to the repeated connection and separation, the contact resistance is increased, and a film is formed which interferes with the flow of electric current due to oxidation, corrosion, foreign matter, etc. of the contact surface, . As a result, a large potential difference occurs at the contact portion due to the increase of the contact resistance and a large amount of heat is generated. If the breaker is damaged due to such heat, it will cause economic loss due to the interruption of the operation facility supplied with power through the breaker, which implies a risk of fire.

In addition, since the bolt loosening or the capacity of the bus bar and the power cable of the switchgear is erroneously applied, the temperature rises continuously due to the proportion of the resistance and the temperature, May occur. In addition, it is necessary to protect materials and equipment by monitoring the temperature rise of various electrical materials such as transformer, inverter, and softstart, which generate a large amount of heat.

In this way, fire accidents caused by the temperature rise inside the switchboard include fire hazard due to the installation of the switchgear largely from the power interruption due to the stoppage of operation of the switchboard. Therefore, It is an important requirement.

The currently known internal temperature control method of the switchboard employs a method of opening the door installed in the switchboard or circulating the internal air to lower the temperature when the temperature value measured through the internal temperature sensor exceeds the proper temperature value.

However, such a conventional switchboard temperature sensing device senses temperature by various temperature sensing sensors by applying a power source, and prevents the occurrence of a fire in a power and control panel. This method has a problem in that installation cost, installation time, There is a problem that the temperature sensor can not operate properly and the temperature rise inside the switchgear can not be detected.

Registered Patent Registration No. 10-1095598 (Name of the invention: Deterioration diagnosis system for connection and disconnection of a connection terminal using an infrared temperature sensor. Date of Notification: December 19, 2011) 2) Open Patent Publication No. 10-2012-0069155 (entitled " Switchgear with transformer for instrument with built-in temperature sensor " Registered Patent Registration No. 10-0947784 (Name of the invention: Switchboard with internal component temperature sensing device through two-dimensional scanning. Date of Notification: March 15, 2010) Registered Patent Registration No. 10-0947785 (Title: Switchboard with temperature sensing device for internal parts through a thermal camera) Date of Notification: March 15, 2010 Patent Publication No. 10-2012-0117161 (Name of invention: Switching prevention with anti-salt and automatic internal temperature control function Disclosure date: Oct. 24, 2012)

The present invention solves the problems of the prior art as described above. By easily attaching a temperature sticker to a door of a switchgear without using a temperature sensor that requires a lot of installation cost, work time and personnel, An object of the present invention is to provide a wristwatch equipped with a temperature display function which can be visually confirmed from the outside easily.

In addition, the present invention provides a switchboard having a temperature display function for displaying the temperature of the door and the interior of the switchgear to 20 to 100 ° C by attaching a temperature sticker having a temperature display function to the outside of the switchboard, There is a purpose.

The present invention is characterized in that a temperature sticker composed of a sion ink for measuring the temperature inside the switchgear is attached to the door of the switchgear.

More preferably, the temperature sticker of the present invention displays a temperature of 20 to 50 ° C.

This design allows the operator to easily visually check the temperature inside the switchboard by visually inspecting the inside of the switchboard by simply attaching the temperature sticker made of Sion ink to the door of the switchgear panel. Especially, the temperature sensor which requires installation cost, There is a synergistic effect that the installation cost, the number of workers and the working time can be remarkably reduced due to the simple operation of attaching the temperature sticker to the door of the switchgear without using it.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a configuration of a switchboard having a temperature display function according to a preferred embodiment of the present invention; FIG.
2 is a view showing the configuration of the temperature sticker 20 attached to the door of the power transmission and distribution panel shown in Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following detailed description, exemplary embodiments of the present invention will be described. And other embodiments which may be suggested in the present specification are replaced by descriptions in the constitution of the present invention.

In the present invention, by attaching the temperature sticker indicating the internal temperature of the switchboard to the door of the switchgear panel, it is possible to reduce the installation cost, which is a problem of the conventional technology, and the temperature display And to realize a switchboard having a function.

Hereinafter, a technical configuration of a switchboard having a temperature display function according to the present invention having the above features will be described in detail with reference to FIGS. 1 and 2. FIG.

FIG. 1 and FIG. 2 are views showing a configuration of a switchboard having a temperature display function according to a preferred embodiment of the present invention. A switchboard 10 having a temperature display function according to the present invention includes a temperature sticker 20 attached to a door 12 of a switchboard to indicate the temperature inside the switchboard 10. The temperature sticker 20 is not deformed by heat and is capable of measuring a temperature within a range of 20 to 30 DEG C, and is preferably configured to display temperatures of 30 DEG C, 40 DEG C, and 50 DEG C, .

Specifically, the temperature sticker 20 of the present invention is made of Zion ink. Specifically, the temperature display part 22a at 30 占 폚 is formed by mixing 5 to 10 parts by weight of pigment and 2 parts by weight of a curing agent with respect to 100 parts by weight of Zion ink And the temperature display part 22b at 40 ° C is formed by blending 5 to 10 parts by weight of the pigment and 3 parts by weight of the curing agent with respect to 100 parts by weight of the sialon ink, 5 to 10 parts by weight of a pigment and 4 parts by weight of a curing agent.

The temperature sticker 20 constructed as described above is displayed in the form of a thermometer as shown in FIG. 2. When the temperature inside the switchboard 10 changes, the temperature indicators 22a, 22b, and 22c formed on the temperature sticker 20, Is changed to match the temperature. Accordingly, the operator can easily visually confirm the internal state of the switchboard 10.

Meanwhile, the temperature sticker having the temperature display function attached to the switchboard according to the present invention can be used in various industrial fields in addition to the switchboards shown in the embodiment of the present invention. For example, it can be used for industrial pipes and busbars.

10: Switchboard 12: Door
20: temperature sticker 22: temperature indicator

Claims (4)

In the normal switchboard 10,
Wherein a temperature sticker (20) is attached to the door (12) of the switchgear (12), the temperature sticker (20) being made of sion ink for measuring the temperature inside the switchboard (10).
The method according to claim 1,
Wherein the temperature sticker (20) displays the temperature inside the switchboard (10) from 20 to 50 캜.
3. The method of claim 2,
The temperature sticker (20) is provided with temperature display portions (22a, 22b, 22c) for displaying temperatures of 30 ° C, 40 ° C and 50 ° C, respectively.
The method of claim 3,
The temperature display portion 22a indicating the temperature of 30 ° C is formed by blending 5 to 10 parts by weight of the pigment and 2 parts by weight of the curing agent with respect to 100 parts by weight of the sialon ink, 5 to 10 parts by weight of a pigment and 3 parts by weight of a curing agent are blended with respect to 100 parts by weight of a sialon ink and the temperature indicator 22c is formed by blending 5 to 10 parts by weight of pigment and 4 parts by weight of a curing agent And a temperature display function.

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