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1. 发明专利

JPH0636941A ABNORMALITY PREDICTING SYSTEM OF OIL-IMMERSED TRANSFORMER 失效
公开(公告)号：JPH0636941A
公开(公告)日：1994-02-10
申请号：JP21222592
申请日：1992-07-15
申请人： OSAKA GAS CO LTD
发明人： HAYAMIZU EIJI , MATSUMOTO KOICHI
IPC分类号： H01F27/00
摘要： PURPOSE:To realize a system capable of simply and easily predicting abnormality occurring time of future, concerning an oil-immersed transformer. CONSTITUTION:From each of the oil-immersed transformers 11-1n, insulating oil is periodically or nonperiodically sampled, and the volume amount of specified gas component contained in a sample is analyzed by a gas amount analyzer 2. A data processing equipment 3 transforms the result into a function which approximates the change with time of the volume amount of specified gas component analyzed by the gas amount analyzer 2, and operates, on the basis of the function, the time when the volume amount of the specified gas component reaches a previously determined threshold value.

2. 发明专利

JP2011200004A Transformer control device 有权
标题翻译：变压器控制装置
公开(公告)号：JP2011200004A
公开(公告)日：2011-10-06
申请号：JP2010063049
申请日：2010-03-18
申请人： Osaka Gas Co Ltd , 大阪瓦斯株式会社
发明人： KOYAMA DAIKI , MATSUMOTO KOICHI
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a transformer control device for controlling so that variation of a system voltage of a power system becomes small when a generator is paralleled off from the power system.SOLUTION: The transformer control device 20 includes: a reactive power measuring unit 17B for measuring reactive power output from a generator 11b; and a tap controller 16 which can output a switch drive signal at a tap position of a loaded tap switch mechanism to a transformer 12. Upon detecting that the operation control of the generator 11b, which is executed by a generator controller 5, has started a preparation operation of parallel-off from the power system 1, the tap controller 16 executes reactive power output suppression processing to output the switch drive signal at the tap position of the loaded tap switch mechanism to the transformer 12 so that the reactive power measured by the reactive power measuring unit 17B may be not more than a reactive power in set parallel-off.
摘要翻译：要解决的问题：提供一种用于控制的变压器控制装置，使得当发电机与电力系统并联时，电力系统的系统电压的变化变小。解决方案：变压器控制装置20包括：无功功率测量用于测量从发电机11b输出的无功功率的单元17B; 以及抽头控制器16，其能够在加载的抽头开关机构的抽头位置处将开关驱动信号输出到变压器12.在检测到由发电机控制器5执行的发电机11b的操作控制已经开始从电力系统1进行平行关闭的准备操作，抽头控制器16执行无功功率输出抑制处理，以将负载分接开关机构的分接位置处的开关驱动信号输出到变压器12，使得由无功功率测量单元17B可以不大于设定并联的无功功率。

3. 发明专利

JPH10115676A MAN LOCATION SYSTEM AND INSPECTION SYSTEM EMPLOYING IT 失效
公开(公告)号：JPH10115676A
公开(公告)日：1998-05-06
申请号：JP27237196
申请日：1996-10-15
申请人： OSAKA GAS CO LTD
发明人： MORIOKA HAJIME , MURATA KAZUO , INOUE HISATO , MATSUMOTO KOICHI , YOKOYA ICHIRO
IPC分类号： G01C21/00 , G01S19/07 , G01S19/14 , G01S19/35 , G08C17/00 , G01S5/14
摘要： PROBLEM TO BE SOLVED: To locate a maintenance/inspection worker accurately without imposing any burden on the worker using a GPS(global positioning system) receiving unit and a mobile communication terminal. SOLUTION: A GPS antenna 21a and a GPS receiving unit 20a for receiving radio wave from a plurality of GPS satellites 2 are contained in a portable box 9 being carried by a maintenance/inspection worker. On the other hand, a GPS antenna 21b and a D-GPS receiving system 20b for measuring GPS position error are disposed in a fixed station, i.e., the computer network (LAN) 10 in a control center 1. Furthermore, a PHS terminal is contained in the portable box 9 in order to communicate information with the LAN 10 through a mobile communication line 3. A center computer 11 connected with the LAN 10 calculates the position of the portable box 9, and thereby the worker, based on positional information and D-GPS positional error received on the communication line 3.

4. 发明专利

JPH0673336B2 失效
公开(公告)号：JPH0673336B2
公开(公告)日：1994-09-14
申请号：JP21222592
申请日：1992-07-15
申请人： OSAKA GAS CO LTD
发明人： HAYAMIZU EIJI , MATSUMOTO KOICHI
IPC分类号： H01F27/00

5. 发明专利

JP2011200003A Device for control of transformer 审中-公开
标题翻译：变压器控制装置
公开(公告)号：JP2011200003A
公开(公告)日：2011-10-06
申请号：JP2010063048
申请日：2010-03-18
申请人： Osaka Gas Co Ltd , 大阪瓦斯株式会社
发明人： KOYAMA DAIKI , MATSUMOTO KOICHI , KITADA SEIJI
IPC分类号： H02J3/12
摘要： PROBLEM TO BE SOLVED: To provide a transformer control device that operates to level the burden of reactive power and the number of operations of a tap switch when a transformer is loaded in a plurality of generator facilities.SOLUTION: The transformer control device 20 includes an information memory 17 for storing information about tap positions of other transformers 12 connected to a control target region 1a of a power system 1. If a system voltage of the control target region 1a is not less than a permissible deviation for a target voltage and the tap position of its own transformer 12 is higher than the tap position of another transformer 12, a tap controller 16 outputs a switch drive signal in a direction for lowering the tap position of the transformer 12 with respect to the loaded tap switch mechanism of its own device. If the system voltage of the control target region 1a is equal to or less than the permissible deviation for the target voltage and the tap position of its own transformer 12 is lower than the tap position of another transformer 12, the tap controller outputs a switch drive signal in a direction for making the tap position of the transformer 12 higher with respect to the loaded tap switch mechanism of its own device.
摘要翻译：要解决的问题：提供一种变压器控制装置，其用于在变压器装载在多个发电机设备中时调节无功功率的负担和分接开关的操作次数。解决方案：变压器控制装置20包括信息存储器17，用于存储与电力系统1的控制目标区域1a连接的其他变压器12的抽头位置的信息。如果控制对象区域1a的系统电压不小于目标电压的容许偏差，其自身变压器12的位置高于另一变压器12的分接头位置，抽头控制器16相对于其自身装置的加载抽头开关机构沿着降低变压器12的抽头位置的方向输出开关驱动信号。如果控制目标区域1a的系统电压等于或小于目标电压的允许偏差，并且其自身变压器12的抽头位置低于另一个变压器12的抽头位置，则抽头控制器输出开关驱动使变压器12的分接头位置相对于其自身装置的加载的分接开关机构的方向信号更高。

6. 发明专利

JPH0794334A DETERIORATION DIAGNOSTIC SYSTEM AND LIFE PREDICTIVE SYSTEM OF OIL-IMMERSED TRANSFORMER 失效
公开(公告)号：JPH0794334A
公开(公告)日：1995-04-07
申请号：JP25911593
申请日：1993-09-21
申请人： OSAKA GAS CO LTD
发明人： HAYAMIZU EIJI , MATSUMOTO KOICHI , SATO TOMINARI
IPC分类号： H01F27/00
摘要： PURPOSE:To provide a system which is capable of easily diagnosing or predicting the current deterioration state or the life expectancy of an oil-immersed transformer at a low cost. CONSTITUTION:A gas quantity analyzer 2 measures the volume of prescribed gas component contained in insulating oil which is regularly or irregularly sampled from oil-immersed transformers 11 to 1n. A data processing device 3 estimates a variation range of dissolved gas quantity in a normal operation through a probability method basing on the past data of measured dissolved gas quantity, and the measurement result of current dissolved gas quantity is compared with the estimated variation range of dissolved gas quantity, whereby it is judged that the oil-immersed transformers 11 to 1n operate normally or not. When it is judged that the oil-immersed transformers 11 to 1n operate normally, the average polymerization degree retention rate of the insulating papers in the oil-immersed transformers 11 to 1n is calculated basing on time measurement results of the current dissolved gas quantity. Basing on a change in dissolved gas quantity with time, a time (termination of life) when a dissolved gas quantity reaches to a previously determined threshold value is predicted by calculation.

7. 发明专利

JPH0540114A ESTIMATING METHOD OF CAUSE OF DEGRADATION OF OIL 失效
公开(公告)号：JPH0540114A
公开(公告)日：1993-02-19
申请号：JP19907091
申请日：1991-08-08
申请人： OSAKA GAS CO LTD
发明人： HAYAMIZU EIJI , MATSUMOTO KOICHI
IPC分类号： G01N30/86 , G01N30/88 , G01N33/26
摘要： PURPOSE:To enable execution of an operation for estimation of a cause of degradation of oil on the basis of prescribed references and techniques by determining the deviation of a composition ratio of each gas component of a specimen oil in relation to the composition ratio distribution of each gas component provided with an average and a standard deviation of the composition ratio of the gas component. CONSTITUTION:An average (Mij) and a standard deviation (Sij) of the composition ratio of each gas component in a degraded oil degraded by each specific cause of degradation are determined beforehand. Next, the deviation of the composition ratio (Xj) of each gas component of a specimen oil in relation to the composition ratio distribution of each gas component provided with the average (Mij) and the standard deviation (Sij) of the composition ratio is determined. In this case, the distribution of the composition ratio is determined beforehand by making use of data and the like obtained theretofore. When the deviation in each gas component for the specific cause of degradation is determined, deviation values sorted by the causes of degradation are determined for all the gas components by using this deviation, and the cause of degradation of which the deviation value is small is judged to be of high probability.

8. 发明专利

JPH0540115A ESTIMATING METHOD OF CAUSE OF DEGRADATION OF OIL 失效
公开(公告)号：JPH0540115A
公开(公告)日：1993-02-19
申请号：JP19907191
申请日：1991-08-08
申请人： OSAKA GAS CO LTD
发明人： HAYAMIZU EIJI , MATSUMOTO KOICHI
IPC分类号： G01N30/86 , G01N30/88 , G01N33/26
摘要： PURPOSE:To apply prescribed references and techniques to execution of an estimating method of a cause of degradation of oil wherein the cause of degradation of a specimen oil is estimated from a plurality of causes of degradation on the basis of the distribution of composition of a gas component contained in the specimen oil. CONSTITUTION:The degree of assurance of the genuineness of some cause of degradation is set beforehand as a function for the composition ratio of each gas component, in regard to each of a plurality of causes of degradation. The composition ratio of the gas component of the specimen oil is multiplied by the degree of assurance corresponding thereto in regard to each of the causes of degradation in a plurality, and the degree of assurance of that cause of degradation is judged to be higher as the product of the multiplication is larger.

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