WO2013005286A1 - 温度監視装置および温度監視方法 - Google Patents
温度監視装置および温度監視方法 Download PDFInfo
- Publication number
- WO2013005286A1 WO2013005286A1 PCT/JP2011/065264 JP2011065264W WO2013005286A1 WO 2013005286 A1 WO2013005286 A1 WO 2013005286A1 JP 2011065264 W JP2011065264 W JP 2011065264W WO 2013005286 A1 WO2013005286 A1 WO 2013005286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core
- temperature
- coil
- temperature monitoring
- conductor
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/005—Circuits arrangements for indicating a predetermined temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
- H01H2011/0068—Testing or measuring non-electrical properties of switches, e.g. contact velocity measuring the temperature of the switch or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0356—Mounting of monitoring devices, e.g. current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
Definitions
- the present invention relates to a temperature monitoring device and a temperature monitoring method for constantly monitoring the temperature of a conductor, for example, a high voltage main circuit charging part of a metal closed switchgear.
- the metal closed switchgear accommodates the circuit breaker, main bus, current transformer, external cable, etc. inside the housing, and loads from the main bus via the circuit breaker, current transformer, and external cable.
- the circuit breaker is generally a pull-out type, and when the circuit breaker is provided with a wheel and pushed into the housing, it is electrically connected to the terminal of the fixed frame arranged in the housing with the contactor of the circuit breaker. Thus, a circuit is formed. Therefore, the high voltage main circuit part of the metal closed type switchgear is composed of many connection parts and contact parts.
- connection part of the high-voltage main circuit part Since the connection part of the high-voltage main circuit part is generally tightened with bolts, it may lead to abnormal overheating due to increased contact resistance of the connection part due to loosening of bolts due to vibration during transportation or poor tightening during installation. There is. Further, the contact resistance of the high voltage main circuit portion may increase due to solidification of grease or contamination of foreign matter, resulting in an increase in contact resistance between the terminal and the contact, leading to abnormal overheating similar to the connection portion. As a general switchgear, for example, there is one shown in Patent Document 1.
- a temperature monitoring apparatus includes a temperature sensor that measures a temperature of a conductor to be monitored, a substrate that includes a transmitter that transmits temperature data obtained by the temperature sensor through wireless communication, A core disposed around the monitoring conductor; and a coil that is wound around the core and that detects an energization current to the monitored conductor and activates the transmitter, and the temperature sensor includes a magnetic field of the core.
- the gap is provided in a part of the path is held by an insulator, and the arrangement of the monitored conductor and the core is regulated by a pair of insulator bobbins that fix the core on both sides of the core, The coil is mounted on the pair of insulator bobbins.
- a temperature monitoring method includes a temperature sensor that measures a temperature in proximity to a monitored conductor, a substrate that includes a transmitter that transmits temperature data obtained by the temperature sensor by wireless communication, and the target.
- a temperature monitoring device comprising: a core disposed around a monitoring conductor; and a coil wound around the core and detecting a current flowing through the monitored conductor to activate the transmitter.
- ⁇ T (To-Tx) ⁇ (I / Ix) n
- ⁇ T Temperature rise value at rated current value I
- K To: Ambient temperature (° C)
- Tx Temperature measurement value at actual load current Ix (° C)
- Ix Actual load current (A)
- n multiplier (1.0 to 2.0)
- a small and robust temperature monitoring device can be obtained as a temperature monitoring device capable of measuring the temperature of a monitored conductor and constantly monitoring the temperature via radio, and using the temperature monitoring device.
- a temperature monitoring method capable of reliably monitoring the temperature can be obtained, so that maintenance is facilitated.
- FIG. 1 to 4 and 15 show a temperature monitoring apparatus according to Embodiment 1 of the present invention
- FIG. 2 is a cross-sectional view taken along line AA of FIG.
- This temperature monitoring device includes a core 2 having a substantially C-shape when viewed from the front, which is disposed so as to surround a high-voltage main circuit conductor 1 which is a monitored conductor.
- An insulator 7 is fixed to the gap 2a in which the C-shaped magnetic path of the core 2 is separated, and a temperature sensor 6 made of, for example, a thermistor is attached to the insulator 7, and this temperature sensor 6 is a high voltage main circuit conductor. 1, the temperature of the high-voltage main circuit conductor 1 is measured.
- the core 2 is supported so that the lower side thereof is sandwiched from both sides by a pair of insulator bobbins 4 made of an insulator.
- the shape of the insulator bobbin 4 is a flat shape as shown in FIG. 4 as a front view (a), a side view (b), and a top view (c). It has a connecting part 4b that is narrower and connects the wide part 4a.
- a side surface of the wide portion 4a is provided with a semicircular recess 4c that follows the shape of the end of the core 2, and the upper portion of the wide portion 4a on both sides receives the high-voltage main circuit conductor 1 as will be described later.
- a four semicircular arc 4d is formed.
- the insulator bobbin 4 further supports the high-voltage main circuit conductor 1 inserted into the core 2 by supporting the high-voltage main circuit conductor 1 against the temperature sensor 6 by supporting the high-voltage main circuit conductor 1 with a circular arc 4d from below.
- the lower end of the temperature sensor 6 slightly protrudes from the lower surface of the core 2, the lower surface of the core 2 faces the high voltage main circuit conductor 1 with a gap 8 therebetween.
- a substrate 5 is fixed to the lower surface of the insulator bobbin 4.
- the positional relationship between the high-voltage main circuit conductor 1 and the core 2 is regulated by the insulator bobbin 4 and is integrally formed with the substrate 5.
- a transmitter (not shown) is mounted on the substrate 5, and temperature data obtained from the temperature sensor 6 is transmitted wirelessly to a receiver in a control room in the panel.
- a coil 3 wound around the core 2 (shown by a chain line in FIGS. 1 and 2 and the same in the following drawings) is provided on the connecting portion 4b of the pair of insulator bobbins 4. The output of the coil 3 is used for starting the transmitter.
- the role of the insulator bobbin 4 in the first embodiment is to position the high voltage main circuit conductor 1 through the gap 8 between the core 2 and the high voltage main circuit conductor 1 by supporting the high voltage main circuit conductor 1 with the insulator bobbin 4. That is. Also, the substrate 5 is fixed. Furthermore, it becomes a winding frame of the coil 3.
- the reason why the core 2 is C-shaped and the separated gap 2a is provided is to suppress heat generation due to the eddy current generated in the core 2 due to the energizing current of the high-voltage main circuit conductor 1;
- the installation position of the temperature sensor 6 is secured using the gap 2a.
- the temperature sensor 6 may be a thermocouple or a bimetal in addition to the thermistor.
- this temperature monitoring device When the high-voltage main circuit conductor 1 that is a monitored conductor is energized, a magnetic field is generated in the core 2 and a voltage is induced in the coil 3 by the generated magnetic field. By supplying this voltage to the substrate 5, the starting circuit of the transmitter is closed, and the temperature data obtained by the temperature sensor 6 in contact with the surface of the high-voltage main circuit conductor 1 is wirelessly communicated from the transmitter. Send to the receiver located in the control room of the panel. Usually, a transmitter is arranged at each monitoring site, but there are one receiver in the board or several receivers in the array. An address is assigned to the receiver side to prevent interference during transmission and reception.
- step S1 When the high-voltage main circuit conductor 1 is energized and reaches a certain current value (step S1), the transmitter power is turned on by the voltage of the coil 3 and is ready for temperature measurement (step S2). A call is made to the address assigned to each sensor from the receiver (step S4), and when the address match is confirmed on the transmitter side within a certain period (step S3), the high voltage main circuit conductor 1 The temperature is measured (step S5). Thereafter, the address and temperature data are transmitted to the receiver side (step S6), and the data is received and stored on the receiver side (step S7).
- the feature of the first embodiment of the present invention is that a high-voltage main circuit conductor 1 is sandwiched between an insulator bobbin 4 and an insulator 7 having a temperature sensor 6 provided in a gap 2a between the cores 2.
- the temperature sensor 6 can be positioned with respect to the circuit conductor 1, and the high-voltage main circuit conductor 1 and the core 2 can be appropriately connected by fixing the substrate 5 on which the transmitter is mounted on the insulator bobbin 4. It is possible to regulate the arrangement relationship. Thereby, the temperature monitoring device can be configured to be small and robust. Moreover, it is possible to constantly monitor the temperature data by wireless communication to know whether or not the high voltage main circuit conductor 1 is normal. Therefore, the maintenance cycle can be extended for the normal part of the measured temperature. Furthermore, since an abnormality sign of the high voltage main circuit conductor 1 can be grasped in advance, maintenance can be planned before an accident occurs.
- FIG. 6 is a front view showing a temperature monitoring apparatus according to Embodiment 2 of the present invention
- FIG. 7 is a sectional view taken along line AA of FIG. 6,
- FIG. 8 is a top view of FIG.
- the difference between the first embodiment and the second embodiment is that the second embodiment is that the core is divided into three parts, and the other configuration is the same as the first embodiment.
- the core of the second embodiment includes a U-shaped first core 21 as viewed from the front, two L-shaped second cores 22a, and a third core 22b.
- the L-shaped second and third cores 22a and 22b are fixed to both ends of the U-shaped first core 21 with bolts (not shown), for example.
- a gap 2a is provided between the second core 22a and the third core 22b, and an insulator 7 is fitted into the gap 2a.
- a temperature sensor 6 made of a thermistor or the like is held in the insulator 7. Yes. The tip of the temperature sensor 6 is in contact with the high voltage main circuit conductor 1.
- the high-voltage main circuit conductor 1 and the first core 21 are fixed to the insulator bobbin 4, and the substrate 5 is fixed to the insulator bobbin 4.
- the structure of the insulator bobbin 4 is the same as that of the first embodiment. Further, the coil 3 wound around the first core 21 is mounted on the insulator bobbin 4.
- the operation of the temperature monitoring apparatus according to the second embodiment is similar to that of the first embodiment in that the transmitter mounted on the substrate 5 wirelessly transmits the temperature data of the temperature sensor 6 toward the receiver, so that the receiving side To monitor whether the high-voltage main circuit conductor 1 is in the normal temperature range.
- the feature of the second embodiment is a structure in which the core is divided into three parts.
- the second core 22 a and the third core 22 b can be assembled together with the insulator 7 and the temperature sensor 6. For this reason, it becomes easy to attach the temperature monitoring device to the high-voltage main circuit conductor 1, and it is necessary to remove the high-voltage main circuit conductor 1 not only when attaching to the new board but also when attaching to the existing board. Absent.
- FIG. 9 to 11 show Embodiment 3 of the present invention.
- 9 is a front view of the temperature monitoring device
- FIG. 10 is a cross-sectional view taken along the line AA of FIG. 9,
- FIG. 11 is a top view of FIG.
- the difference between the third embodiment and the second embodiment is the installation position of the substrate 5.
- the substrate 5 is installed on the insulator 71.
- the insulator 71 is provided with protrusions 72 at two positions on the upper surface thereof, and the substrate 5 on which the transmitter is mounted is fixed on the protrusion 72 by screws or the like.
- Other configurations and operations are the same as those in the first embodiment or the second embodiment. With this configuration, the space between the L-shaped second core 22a and the third core 22b can be effectively used as a substrate housing space, and the size in the height direction of the temperature monitoring device can be reduced.
- FIG. 12 and 13 show a fourth embodiment of the present invention.
- FIG. 12 is a front view of an external power supply coil used in a temperature monitoring apparatus according to Embodiment 4 of the present invention
- FIG. 13 is a front view of the temperature monitoring apparatus in which the external power supply coil apparatus is set.
- the transmitter of the substrate 5 does not start unless a current is passed through the high-voltage main circuit conductor 1. That is, at the time of a shipping test or a field test, since the high voltage main circuit conductor 1 is not energized, it cannot be confirmed whether or not the temperature monitoring device itself operates normally. Therefore, by setting the external power supply coil device 90 shown in FIG. 12 to the temperature monitoring device shown in the second embodiment, the power supply during the test or the like is secured.
- the external power supply coil device 90 shown in FIG. 12 is arranged at the front and rear ends of the external power supply core 92 having a U-shape having the same width as the L-shaped first core 21 shown in FIG.
- an external power supply 91 for supplying power is provided.
- the structure of the external power supply insulator bobbin 94 is the same as that of the insulator bobbin 4.
- the external power source coil device 90 is set in the temperature monitoring device as shown in FIG. A magnetic field is generated in the core 2, and the transmitter of the substrate 5 is activated by a voltage induced in the coil 3 by this magnetic field. As a result, the temperature monitoring device can be tested in a state where no current flows through the high-voltage main circuit conductor 1. Since the external power supply coil device 90 is removable, the size of the temperature monitoring device is not increased by using it only when necessary.
- FIG. The fifth embodiment relates to a temperature measurement method using a temperature monitoring device.
- FIG. 14 shows a graph of data received from the temperature monitoring device of the present invention.
- the temperature value of the high-voltage main circuit conductor 1 is transmitted.
- the temperature value of the high voltage main circuit conductor 1 is also a low value. Whether the circuit is normal or abnormal cannot be determined only by the temperature value.
- the actual load current value of the monitored conductor is calculated from the output voltage of the coil 3, and the temperature value at the current value is converted into the temperature value at the rated current value, thereby estimating the temperature at the rated current value.
- the state of the circuit is determined. The determination is made based on the difference between the measured temperature value of each temperature monitoring device and the ambient temperature outside the panel, that is, the temperature rise value.
- the temperature rise value at the rated current value is estimated by the following formula.
- ⁇ T (To-Tx) ⁇ (I / Ix) n
- ⁇ T Temperature rise value at rated current value I
- K To: Ambient temperature (° C)
- Tx Temperature measurement value at actual load current Ix (° C)
- Ix Actual load current (A)
- n multiplier (1.0 to 2.0)
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Gas-Insulated Switchgears (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
ΔT=(To-Tx)×(I/Ix)n
ただし、
ΔT:定格電流値Iでの温度上昇値(K)
To :周囲温度(℃)
Tx :実負荷電流Ixでの温度測定値(℃)
I :定格電流(A)
Ix :実負荷電流(A)
n :乗数(1.0~2.0)
図1~図4及び図15はこの発明の実施の形態1に係る温度監視装置を示すものであり、図2は図1のA-A線に沿う断面図である。この温度監視装置は、被監視導体である高電圧主回路導体1を取り巻くように配置されている、正面から見て略C字形をなすコア2を備えている。コア2のC字形磁路の切り離されている隙間2aには絶縁物7が固定され、この絶縁物7に、例えばサーミスタからなる温度センサ6が取り付けられ、この温度センサ6が高電圧主回路導体1に接触して、高電圧主回路導体1の温度を計測するようになされている。
図6はこの発明の実施の形態2に係る温度監視装置を示す正面図、図7は図6のA-A線における断面図、図8は図6の上面図である。実施の形態1と実施の形態2の違いは、実施の形態2は、コアが3つの部分に分割されている点であり、その他の構成は実施の形態1と同じである。
図9~図11はこの発明の実施の形態3を示している。図9は温度監視装置の正面図、図10は図9のA-Aにおける断面図、図11は図9の上面図である。実施の形態3と実施の形態2の違いは、基板5の設置位置であり、実施の形態3では基板5を絶縁物71の上に設置している。
図12および図13はこの発明の実施の形態4を示している。図12はこの発明の実施の形態4に係る温度監視装置に使用される外部電源用コイルの正面図、図13は前記外部電源用コイル装置をセットした温度監視装置を示す正面図である。
実施の形態5は温度監視装置による温度測定方法に関するものである。図14はこの発明の温度監視装置から受信したデータのグラフを示す。導体温度監視装置の送信器側から受信器側に送信されるデータとしては、高電圧主回路導体1の温度値だけではなく、基板5起動用のコイル3の出力電圧値も送信している。例えば、高電圧主回路導体1の定格電流600Aに対して、実負荷電流が200Aというように定格電流値よりも低い値の場合、高電圧主回路導体1の温度値も低い値となるため、温度値だけではその回路が正常か異常かを判断することはできない。そこでコイル3の出力電圧から被監視導体の実負荷電流値を算出して、その電流値での温度値を定格電流値での温度値へ変換することで、定格電流値での温度を推測し、その回路の状態を判断する。判定は各温度監視装置の計測温度値と盤外の周囲温度との差、つまり温度上昇値で判定する。その定格電流値での温度上昇値の推定は、以下の式により算出する。
ΔT=(To-Tx)×(I/Ix)n
ただし、
ΔT:定格電流値Iでの温度上昇値(K)
To :周囲温度(℃)
Tx :実負荷電流Ixでの温度測定値(℃)
I :定格電流(A)
Ix :実負荷電流(A)
n :乗数(1.0~2.0)
2a コアの隙間、 3 コイル、
4 絶縁物ボビン、 4a 幅広部、
4b 連結部、 4c 凹部、
4d 円弧、 5 基板、
6 温度センサ、 7、71 絶縁物、
72 突起、 8 ギャップ、
90 外部電源用コイル装置、 91 外部電源、
92 外部電源用コア、 93 外部電源用コイル、
94 外部電源用絶縁物ボビン。
Claims (7)
- 被監視導体に近接してその温度を計測する温度センサと、該温度センサで得た温度データを無線通信にて送信する送信器を搭載した基板と、前記被監視導体を取り巻いて配置されたコアと、該コアに巻回され、前記被監視導体への通電電流を検出して前記送信器を起動させるコイルとを備え、前記温度センサは、前記コアの磁路の一部に設けられた隙間に絶縁物によって保持され、また、前記被監視導体と前記コアの配置は、前記コアの両側において前記コアを固定する一対の絶縁物ボビンにより規制されると共に、前記一対の絶縁物ボビンには、前記コイルが架装されていることを特徴とする温度監視装置。
- 前記基板は、前記絶縁物ボビンに取り付けられていることを特徴とする請求項1に記載の温度監視装置。
- 前記被監視導体は、前記コアとの間に所定のギャップをおいて配置されていることを特徴とする請求項1または請求項2に記載の温度監視装置。
- 前記コアは、コ形の第1のコアとL形の第2および第3のコアを組み合わせて前記被監視導体を取り巻くように配置され、前記第2のコアと第3のコアとの間に設けられた隙間に温度センサを保持する絶縁物が固定されていることを特徴とする請求項1~請求項3のいずれか一項に記載の温度監視装置。
- 前記基板は、前記絶縁物に取り付けられていることを特徴とする請求項4に記載の温度監視装置。
- 前記第2のコアと第3のコアで形成される磁路をバイパスするように組み合わされる外部電源用コアと、該外部電源用コアに巻回された外部電源用コイルと、該外部電源用コイルに電流を供給する外部電源とを備え、前記外部電源用コイルに流れる電流により、前記第1のコアに巻回されたコイルに電圧を発生させる外部電源用コイル装置を、請求項4に記載の温度監視装置に付設したことを特徴とする温度監視装置。
- 被監視導体に近接してその温度を計測する温度センサと、該温度センサで得た温度データを無線通信にて送信する送信器を搭載した基板と、前記被監視導体を取り巻いて配置されたコアと、該コアに巻回され、前記被監視導体への通電電流を検出して前記送信器を起動させるコイルとを備えた温度監視装置を用いて、前記コイルの出力電圧と前記被監視導体に流れる電流との関係から前記被監視導体への実負荷電流値を算出して、その電流値で前記温度センサで計測した温度値を定格電流値での温度値へ変換することで、定格電流値での温度を下記の式により推測することを特徴とする温度監視方法。
ΔT=(To-Tx)×(I/Ix)n
ただし、
ΔT:定格電流値Iでの温度上昇値(K)
To :周囲温度(℃)
Tx :実負荷電流Ixでの温度測定値(℃)
I :定格電流(A)
Ix :実負荷電流(A)
n :乗数(1.0~2.0)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013522624A JP5674935B2 (ja) | 2011-07-04 | 2011-07-04 | 温度監視装置および温度監視方法 |
PCT/JP2011/065264 WO2013005286A1 (ja) | 2011-07-04 | 2011-07-04 | 温度監視装置および温度監視方法 |
EP11868956.1A EP2731214B1 (en) | 2011-07-04 | 2011-07-04 | Temperature monitoring device and temperature monitoring method |
CN201180071948.0A CN103636087B (zh) | 2011-07-04 | 2011-07-04 | 温度监视装置及温度监视方法 |
HK14106976.9A HK1193680A1 (zh) | 2011-07-04 | 2014-07-09 | 溫度監視裝置及溫度監視方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/065264 WO2013005286A1 (ja) | 2011-07-04 | 2011-07-04 | 温度監視装置および温度監視方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013005286A1 true WO2013005286A1 (ja) | 2013-01-10 |
Family
ID=47436659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/065264 WO2013005286A1 (ja) | 2011-07-04 | 2011-07-04 | 温度監視装置および温度監視方法 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2731214B1 (ja) |
JP (1) | JP5674935B2 (ja) |
CN (1) | CN103636087B (ja) |
HK (1) | HK1193680A1 (ja) |
WO (1) | WO2013005286A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102046608B1 (ko) * | 2016-08-12 | 2019-11-19 | 주식회사 엘지화학 | 배터리 팩을 위한 온도 모니터링 장치 및 방법 |
EP3330721B1 (en) * | 2016-12-02 | 2020-06-03 | General Electric Technology GmbH | Sensing device for switchgear and transmission line |
FR3089340B1 (fr) * | 2018-11-29 | 2020-10-30 | Schneider Electric Ind Sas | Transformateur de courant, dispositif de protection et disjoncteur électrique comportant un tel transformateur |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51132581U (ja) * | 1975-04-18 | 1976-10-25 | ||
JPS60249807A (ja) * | 1984-05-25 | 1985-12-10 | 株式会社東芝 | 閉鎖配電盤 |
JPH05108992A (ja) * | 1991-10-16 | 1993-04-30 | Meidensha Corp | 導体の異常過熱検出装置 |
JPH05157631A (ja) * | 1991-12-06 | 1993-06-25 | Mitsubishi Electric Corp | 母線温度監視装置 |
JP2010027286A (ja) * | 2008-07-16 | 2010-02-04 | Mitsubishi Electric Corp | 放電装置および温度監視装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05299274A (ja) * | 1992-04-21 | 1993-11-12 | Matsushita Electric Works Ltd | 変流器 |
JPH08103022A (ja) * | 1994-09-30 | 1996-04-16 | Matsushita Electric Ind Co Ltd | 電力系統及び電気設備の監視装置 |
CN2645058Y (zh) * | 2003-07-23 | 2004-09-29 | 太原昶宇电力新技术有限公司 | 具有感应电源的载流导体测温传感装置 |
US7253602B2 (en) * | 2004-10-12 | 2007-08-07 | Eaton Corporation | Self-powered power bus sensor employing wireless communication |
US7145322B2 (en) * | 2004-10-12 | 2006-12-05 | Eaton Corporation | Self-powered power bus sensor employing wireless communication |
JP2006304523A (ja) * | 2005-04-22 | 2006-11-02 | Tokyo Gas Co Ltd | 配電設備の管理システムおよび配電設備の管理方法 |
CN200979458Y (zh) * | 2006-09-21 | 2007-11-21 | 中国储备粮管理总公司仓储管理部 | T型快速装卸密封测温电缆总成 |
JP2008289255A (ja) * | 2007-05-16 | 2008-11-27 | Mitsubishi Electric Corp | 監視装置及び監視システム |
-
2011
- 2011-07-04 WO PCT/JP2011/065264 patent/WO2013005286A1/ja active Application Filing
- 2011-07-04 EP EP11868956.1A patent/EP2731214B1/en active Active
- 2011-07-04 CN CN201180071948.0A patent/CN103636087B/zh not_active Expired - Fee Related
- 2011-07-04 JP JP2013522624A patent/JP5674935B2/ja not_active Expired - Fee Related
-
2014
- 2014-07-09 HK HK14106976.9A patent/HK1193680A1/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51132581U (ja) * | 1975-04-18 | 1976-10-25 | ||
JPS60249807A (ja) * | 1984-05-25 | 1985-12-10 | 株式会社東芝 | 閉鎖配電盤 |
JPH05108992A (ja) * | 1991-10-16 | 1993-04-30 | Meidensha Corp | 導体の異常過熱検出装置 |
JPH05157631A (ja) * | 1991-12-06 | 1993-06-25 | Mitsubishi Electric Corp | 母線温度監視装置 |
JP2010027286A (ja) * | 2008-07-16 | 2010-02-04 | Mitsubishi Electric Corp | 放電装置および温度監視装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2731214A4 * |
Also Published As
Publication number | Publication date |
---|---|
JPWO2013005286A1 (ja) | 2015-02-23 |
CN103636087B (zh) | 2016-02-17 |
EP2731214A4 (en) | 2015-03-18 |
EP2731214B1 (en) | 2016-08-17 |
CN103636087A (zh) | 2014-03-12 |
HK1193680A1 (zh) | 2014-09-26 |
EP2731214A1 (en) | 2014-05-14 |
JP5674935B2 (ja) | 2015-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9783071B2 (en) | Device and method for providing a quantity of energy in said supply device for consumer | |
US20150377949A1 (en) | Utility Meter with Temperature Sensor | |
KR101979631B1 (ko) | 무선온도감지장치 | |
JP2015526837A (ja) | 無線分岐回路エネルギー監視システム | |
JP5674935B2 (ja) | 温度監視装置および温度監視方法 | |
US9423428B2 (en) | Mixed current sensor and method for fitting said sensor | |
KR102263569B1 (ko) | 자기 에너지 하베스팅 모듈 | |
US10161987B2 (en) | Insulation degradation monitoring device | |
CN104335019A (zh) | 光纤温度传感器 | |
CN105044480B (zh) | 测量电气设备中流动电流的至少一个电变量的装置 | |
JP5748862B2 (ja) | 電気機器の状態監視装置 | |
EP4148699A1 (en) | Wireless sensor | |
CN111712896B (zh) | 用于开关设备的无线感测系统和方法 | |
JP2014020966A (ja) | 電力計測装置 | |
JP2006266709A (ja) | 碍子漏洩電流測定装置 | |
JP5091800B2 (ja) | 回路遮断器および分電盤 | |
WO2015072001A1 (ja) | 超電導磁石 | |
RU110193U1 (ru) | Датчик больших токов | |
US20210384854A1 (en) | Electromagnetic induction power generator | |
RU2409884C1 (ru) | Способ эксплуатационного контроля нагрева и защиты электродвигателей | |
KR102411422B1 (ko) | 수배전반의 부스바 무전력 성능 감시 장치 | |
US9455564B2 (en) | Current and voltage module and methods of monitoring current and voltage in power distribution systems | |
KR101604279B1 (ko) | 직류 회로차단기용 직류 전류 센서 | |
KR102581728B1 (ko) | 누전 및 과열방지 경보형 에너지하베스팅 모듈을 구비한 수배전반 | |
JP2008039627A (ja) | 電力量計 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180071948.0 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11868956 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013522624 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2011868956 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011868956 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |