JPS6313312A - Apparatus for controlling operation of cooling apparatus for stationary induction electric apparatus - Google Patents
Apparatus for controlling operation of cooling apparatus for stationary induction electric apparatusInfo
- Publication number
- JPS6313312A JPS6313312A JP15610386A JP15610386A JPS6313312A JP S6313312 A JPS6313312 A JP S6313312A JP 15610386 A JP15610386 A JP 15610386A JP 15610386 A JP15610386 A JP 15610386A JP S6313312 A JPS6313312 A JP S6313312A
- Authority
- JP
- Japan
- Prior art keywords
- cooling fan
- motor
- fan motor
- strong wind
- stationary induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 230000006698 induction Effects 0.000 title claims description 10
- 230000002159 abnormal effect Effects 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000001012 protector Effects 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、冷却ファンにより絶縁油を強制冷却する変圧
器等の静止誘導電器の冷却器運転制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a cooler operation control device for a stationary induction electric appliance such as a transformer, which forcibly cools insulating oil using a cooling fan.
（従来の技術）
例えば特開昭６０−２０２９１８号公報では、冷却器の
冷却ファン低速運転時、強風などでファンがロックされ
ることを防止するため、変圧器の近傍に、風速計を設置
して、ある程度の風速以上になったら冷却器電源を、商
用周波数電源直結に切換える方式を提案している。(Prior art) For example, in Japanese Patent Application Laid-Open No. 60-202918, an anemometer is installed near the transformer in order to prevent the fan from locking up due to strong winds when the cooling fan of the cooler is operated at low speed. Therefore, we are proposing a system in which the cooler power source is switched to a direct connection to a commercial frequency power source when the wind speed exceeds a certain level.
第３図は、その−例を示すもので風速計１０の信号を制
御装置８に入れて強風の強さによって、ある限度を境に
して、切換信号１１により開閉器４゜５を切換えて、静
止誘導電器１の冷却器２を商用周波数電源３直結と回転
数変化装置６経由のいづれかを選択する。FIG. 3 shows an example of this, in which the signal from the anemometer 10 is input to the control device 8, and depending on the strength of the strong wind, the switches 4 to 5 are switched by the switching signal 11 when a certain limit is reached. The cooler 2 of the stationary induction electric appliance 1 is connected either directly to the commercial frequency power source 3 or via the rotational speed changing device 6.
（発明が解決しようとする問題点）
しかし、このような制御装置では風向きに関係なくある
一定の風速以上で切り換えるため冷却ファン用電動機が
風向等によってロックされない場合でも商用周波数電源
直結に切り換えてしまうため省エネ効果が少なかった６
本発明は風速計の設置なしで、効果的にファン電動機を
強風によるロックから保護する静止誘導電器の冷却器連
続制御装置を得ることを目的とする。(Problem to be solved by the invention) However, with this type of control device, switching is performed at a certain wind speed or higher regardless of the wind direction, so even if the cooling fan motor is not locked due to the wind direction, etc., it will switch to the direct connection to the commercial frequency power supply. Therefore, the energy saving effect was small.6 The object of the present invention is to obtain a continuous control device for a cooler of a stationary induction electric machine that effectively protects a fan motor from locking due to strong winds without installing an anemometer.
（問題点を解決するための手段及び作用）本発明は商用
周波数電源により回転速度変化装置を介して冷却ファン
を運転する静止誘導電器の冷却器運転制御装置において
、前記冷却ファンの強風による異常ロック停止を電動機
に内蔵した温度検出装置により検出し、商用周波数電源
による直結運転に切り換えるようにしたことを特徴とす
る。(Means and Effects for Solving the Problems) The present invention provides a cooler operation control device for a stationary induction appliance that operates a cooling fan using a commercial frequency power supply via a rotation speed changing device, in which the cooling fan is abnormally locked due to strong wind. The motor is characterized in that a stop is detected by a temperature detection device built into the motor, and the motor is switched to direct connection operation using a commercial frequency power source.
（実 施 例）
第１図及び第２図は本発明の一実施例を示す図で、第１
図は全体のブロック図で、第２図は冷却器２に多数個組
込まれている冷却ファン用電動機１２の制御及び保護回
路を示す図である。(Embodiment) Figures 1 and 2 are diagrams showing an embodiment of the present invention.
The figure is an overall block diagram, and FIG. 2 is a diagram showing a control and protection circuit for a large number of cooling fan motors 12 incorporated in the cooler 2.
本発明の特徴は、問題となる強風の検出を従来の風速計
１０に変えて、冷却ファン用電動機１２のケースに内蔵
したサーマルプロテクタースイッチ（バイメタル状のも
の） １３を用いたものであり、これは、万一強風が冷
却ファン用電動機１２をロックして電動機の巻線の温度
上昇が過大になれば動作して信号を出すものである。こ
の信号を制御装置８に入れて、切換信号１１により、開
閉器４．５を切換えて、回転数変位装置６経由から、商
用周波数電源３直結に切換える。A feature of the present invention is that instead of using the conventional anemometer 10 to detect strong winds, a thermal protector switch (bimetal type) 13 built into the case of the cooling fan motor 12 is used. In the unlikely event that strong winds lock up the cooling fan motor 12 and the temperature of the motor windings increases excessively, it will operate and issue a signal. This signal is input to the control device 8, and the switching signal 11 is used to switch the switch 4.5 to switch from via the rotational speed displacement device 6 to direct connection to the commercial frequency power source 3.
従来技術に比べて、本発明のすぐれている点は。What are the advantages of the present invention compared to the prior art?
前者の場合は、風向きに関係なくある一定の風速以上で
切換えるため、冷却ファン電動機１２が、風向等によっ
ては、ロックされない場合でも省エネ運転の回転数変化
装置６経由から商用周波数電源３直結に切換えるため、
省エネ効果が期待出来なくなる。尚、万一、冷却ファン
電動機１２が、強風によるロック以外の何等かの温度上
昇異常があった場合には、商用周波数電源３に直結、運
転再開後、第２図のサーマルリレー１４が検出動作し、
各電動機個別開閉器１５を動作させ、当該冷却ファン電
動機にのみを停止させ保護する。In the former case, the switching occurs at a certain wind speed or higher regardless of the wind direction, so even if the cooling fan motor 12 is not locked, depending on the wind direction, etc., the cooling fan motor 12 is switched from the rotation speed change device 6 for energy-saving operation to the direct connection to the commercial frequency power supply 3. For,
Energy saving effects cannot be expected. In the unlikely event that the cooling fan motor 12 experiences any temperature rise abnormality other than locking up due to strong winds, it is directly connected to the commercial frequency power supply 3, and after restarting operation, the thermal relay 14 shown in Fig. 2 operates to detect it. death,
Each motor individual switch 15 is operated to stop and protect only the cooling fan motor.
以上のように本発明によれば、商用周波数電源により回
転速度変化装置を介して冷却ファンを運転する静止誘導
電器の冷却器運転制御装置において、冷却ファンの強風
による異常ロック停止を電動機に内蔵した温度検出装置
により検出し、商用周波数電源による直結運転に切り換
えるようにしたので、風速計の設置なしで効果的にファ
ン電動機を強風によるロックから保護する静止誘導電器
の冷却器運転制御装置を得ることができる。As described above, according to the present invention, in a cooler operation control device for a stationary induction appliance in which a cooling fan is operated by a commercial frequency power supply via a rotation speed changing device, an abnormal lock stop caused by a strong wind of the cooling fan is built into the electric motor. To obtain a cooler operation control device for a stationary induction electric appliance that effectively protects a fan motor from locking due to strong wind without installing an anemometer, since the temperature is detected by a temperature detection device and the operation is switched to direct connection with a commercial frequency power source. Can be done.
第１図は、本発明の全体ブロック図で、第２図は１本発
明の特徴を示す冷却ファン電動機の制御、保護回路図、
第３図は従来技術を示すブロック図である。
１・・・静止誘導電器 ２・・・冷却器３・・・
商用周波数型ｇ ４．５・・・開閉器６・・・回転
数変化装置 ８・・・制御装置９・・・周波数指令
装置 １０・・・風速計１１・・・切換信号
代理人 弁理士 則 近 憲 佑
同 三俣弘文
ど
第１図
第２図
／′０
第３図FIG. 1 is an overall block diagram of the present invention, and FIG. 2 is a control and protection circuit diagram of a cooling fan motor showing one feature of the present invention.
FIG. 3 is a block diagram showing the prior art. 1...Stationary induction electric appliance 2...Cooler 3...
Commercial frequency type g 4.5...Switch 6...Rotation speed changing device 8...Control device 9...Frequency command device 10...Anemometer 11...Switching signal agent Patent attorney rules Yudo Chika Ken Hirofumi Mitsumata Figure 1 Figure 2/'0 Figure 3
Claims (1)
ファンを運転する静止誘導電器の冷却運転器制御装置に
おいて、前記冷却ファンの強風による異常ロック停止を
電動機に内蔵した温度検出装置により検出し、商用周波
数電源による直結運転に切り換えるようにしたことを特
徴とする静止誘導電器の冷却器運転制御装置。In a cooling driver control device for a stationary induction electric appliance that operates a cooling fan via a rotation speed changing device using a commercial frequency power source, an abnormal lock stop of the cooling fan due to strong wind is detected by a temperature detection device built into the motor, and the commercial frequency A cooler operation control device for a stationary induction electric appliance, characterized in that the operation is switched to direct connection operation using a power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15610386A JPS6313312A (en) | 1986-07-04 | 1986-07-04 | Apparatus for controlling operation of cooling apparatus for stationary induction electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15610386A JPS6313312A (en) | 1986-07-04 | 1986-07-04 | Apparatus for controlling operation of cooling apparatus for stationary induction electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6313312A true JPS6313312A (en) | 1988-01-20 |
Family
ID=15620373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15610386A Pending JPS6313312A (en) | 1986-07-04 | 1986-07-04 | Apparatus for controlling operation of cooling apparatus for stationary induction electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6313312A (en) |
-
1986
- 1986-07-04 JP JP15610386A patent/JPS6313312A/en active Pending
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