JPS6245480Y2 - - Google Patents
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- Publication number
- JPS6245480Y2 JPS6245480Y2 JP1983166992U JP16699283U JPS6245480Y2 JP S6245480 Y2 JPS6245480 Y2 JP S6245480Y2 JP 1983166992 U JP1983166992 U JP 1983166992U JP 16699283 U JP16699283 U JP 16699283U JP S6245480 Y2 JPS6245480 Y2 JP S6245480Y2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- overvoltage
- winding
- load
- prevention device
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 52
- 230000002265 prevention Effects 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005284 excitation Effects 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 9
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Eletrric Generators (AREA)
Description
【考案の詳細な説明】
本考案は、エンジン発電機の過電圧・過電流防
止装置、特に発電機の負荷の変動、例えば進相電
流が流れた場合に負荷電圧が上昇するのを防止す
る発電機の過電圧・過電流防止装置に関するもの
である。[Detailed description of the invention] The present invention is an overvoltage/overcurrent prevention device for engine generators, particularly for generators that prevents the load voltage from increasing when load fluctuations occur, such as when a phase-advanced current flows. The present invention relates to overvoltage and overcurrent prevention devices.
従来交流発電機では、負荷電流が定格電流値か
ら所定値を超えた場合に、過電流防止装置が働い
て負荷を切り離すなどして、該交流発電機を保護
していた。 In conventional alternating current generators, when the load current exceeds a predetermined value from the rated current value, an overcurrent prevention device operates to disconnect the load, thereby protecting the alternator.
しかしながら、これらの動作は限時動作であ
り、前記切り離しが完了するまでの間に、例えば
エンジン発電機などにおいて、容量性負荷が接続
されて非所望に進相電流が流れた如き場合に発電
機の出力電圧が上昇し、例えば定格電圧の150％
程度まで上昇し、負荷装置を損傷することが生じ
た。 However, these operations are time-limited operations, and until the disconnection is completed, for example, in an engine generator, if a capacitive load is connected and an undesired phase-advanced current flows, the generator will be activated. The output voltage increases, e.g. 150% of the rated voltage
This caused damage to the load equipment.
また、負荷が軽負荷の場合、進相電流による界
磁鉄心の増磁作用、後述するいわゆる野中式発電
機の態様とをもつて動作し、出力電圧が上昇して
も、負荷電流が過電流防止装置を動作させる程ま
でには増大せず、負荷装置を損傷させてしまうこ
ともあつた。更に、負荷に供給する電圧が所定値
を超えた場合、直ちに負荷に供給する電圧を遮断
していたのでは、過電圧持続時間の短いパルス状
電圧であつても負荷に供給する電圧を遮断してし
まい、無用の遮断を行つてしまうという問題もあ
つた。 In addition, when the load is light, the field core is magnetized by the phase-advanced current, and the so-called Nonaka generator, which will be described later, operates, and even if the output voltage increases, the load current will not exceed the overcurrent. It did not increase to the extent that the prevention device was activated, and the load device was sometimes damaged. Furthermore, if the voltage supplied to the load exceeds a predetermined value, the voltage supplied to the load is immediately cut off. There was also the problem of unnecessary interruptions.
本考案は、前記問題を解決することを目的と
し、例えば定格電圧の130％程度の上昇に対して
前記切り離しを行うことを目的としている。その
ため本考案のエンジン発電機の過電圧・過電流防
止装置は、出力端に過電流防止装置をもうけたエ
ンジン駆動発電機において、負荷供給電圧が所定
電圧値を超えたことを検出する過電圧検出器を有
し、該過電圧検出器からの信号にもとづき前記過
電流防止装置を強制的に作動させることにより負
荷に印加される非所望な高電圧を早期に遮断させ
ることを特徴としている。 The present invention aims to solve the above-mentioned problem, and aims to perform the above-mentioned disconnection when the rated voltage increases, for example, by about 130%. Therefore, the overvoltage/overcurrent prevention device for engine generators of the present invention is equipped with an overvoltage detector that detects when the load supply voltage exceeds a predetermined voltage value in an engine-driven generator equipped with an overcurrent prevention device at the output end. The overcurrent prevention device is forcibly activated based on a signal from the overvoltage detector, thereby quickly cutting off the undesired high voltage applied to the load.
以下図面を参照しつつ本考案を詳細に説明す
る。 The present invention will be described in detail below with reference to the drawings.
第１図は従来の発電機の過電流防止装置、第２
図は本考案の１実施例、第３図は本考案の他の１
実施例を示す。 Figure 1 shows a conventional generator overcurrent prevention device;
The figure shows one embodiment of the present invention, and Figure 3 shows another embodiment of the present invention.
An example is shown.
図中、１は過電流防止装置、１−１，１−２は
過電圧・過電流防止装置、２，２０は接点、３は
過電流検出巻線、３′，１９は駆動巻線、４は発
電機、５は負荷、６は回転子巻線、７は主発電巻
線、８は励磁巻線、９，１５は整流器、１０，１
７はコンデンサ、１１はスリツプ・リング、１２
はフライホイール用ダイオード、１３は逆電圧防
止用ダイオード、１４は電圧制御部、１６は可変
抵抗、１８はツエナ・ダイオード、２０′はサイ
リスタ、２１はスイツチを表わす。 In the figure, 1 is an overcurrent prevention device, 1-1 and 1-2 are overvoltage and overcurrent prevention devices, 2 and 20 are contacts, 3 is an overcurrent detection winding, 3' and 19 are drive windings, and 4 is a drive winding. Generator, 5 is load, 6 is rotor winding, 7 is main generation winding, 8 is excitation winding, 9, 15 is rectifier, 10, 1
7 is a capacitor, 11 is a slip ring, 12
13 is a flywheel diode, 13 is a reverse voltage prevention diode, 14 is a voltage control section, 16 is a variable resistor, 18 is a Zener diode, 20' is a thyristor, and 21 is a switch.
第１図図中、発電機４は既知のものであるが簡
単に説明する。励磁巻線８の両端に発生した交番
電圧は整流器９によつて整流された後、コンデン
サ１０により平滑されて励磁用の直流電圧をコン
デンサ１０の両端に得る。そしてコンデンサ１０
の１端はスリツプ・リング１１を介して回転子巻
線６の１端に接続され、コンデンサ１０の他端は
主発電巻線７の１部から取り出した電圧を一定に
保持するために回転子巻線６に印加する電圧をチ
ヨツパ制御する電圧制御部１４およびスリツプ・
リング１１を介して回転子巻線６の他端に接続さ
れている。回転子巻線６は内燃機関によつて駆動
される。 Although the generator 4 in FIG. 1 is a known generator, it will be briefly explained. The alternating voltage generated across the excitation winding 8 is rectified by a rectifier 9 and then smoothed by a capacitor 10 to obtain a DC voltage for excitation across the capacitor 10 . and capacitor 10
One end of the capacitor 10 is connected to one end of the rotor winding 6 via a slip ring 11, and the other end of the capacitor 10 is connected to one end of the rotor winding 6 in order to keep the voltage drawn from a portion of the main generator winding 7 constant. A voltage control unit 14 that performs chopper control of the voltage applied to the winding 6 and a slip
It is connected to the other end of the rotor winding 6 via a ring 11. The rotor winding 6 is driven by an internal combustion engine.
図中２１はスイツチであつて、負荷５に印加す
る電圧をON／OFFさせるものである。 In the figure, 21 is a switch that turns on/off the voltage applied to the load 5.
また、図中１は過電流防止装置であつて、電流
遮断用の接点２および過電流検出巻線３から構成
されている。発電機４から接点２、過電流検出巻
線３を介して負荷５に供給される電流が発電機４
の定格電流値より所定値超えた場合に、過電流検
出巻線３が働いて接点２を開状態にし、負荷５に
流れる過電流を遮断する。 In the figure, reference numeral 1 denotes an overcurrent protection device, which is composed of a current interruption contact 2 and an overcurrent detection winding 3. A current supplied from a generator 4 to a load 5 via the contact 2 and the overcurrent detection winding 3 is
When the rated current of the load 5 exceeds a predetermined value, the overcurrent detection winding 3 is activated to open the contacts 2 and cut off the overcurrent flowing to the load 5 .
第１図図示の従来の構成の場合、上述の如く動
作するが、たまたま負荷５としてアーク灯などが
使用されている状態の下で管球を取除いた如き場
合に、主発電巻線７に比較的高い電圧が発生して
負荷５中の電子機器を損傷した障害が発生した。
この原因を追求した結果次のことが判明した。即
ち、前記の場合に負荷電流として進相電流が流が
れ、これが図示主発電巻線７から回転子巻線６に
電圧を誘導し、回転子巻線６に誘起された電圧に
よつてフライホイール用ダイオード１２を通つて
直流励磁電流を回転子巻線６に供給する形とな
る。この場合、主発電巻線７に発生する電圧を抽
出して、電圧制御部１４が励磁巻線８からの励磁
電流をカツト・オフ状態に保つように働らくが、
当該電圧制御部１４は回転子巻線６に上述の如く
誘起される電圧を制限する機能をもたず、主発電
巻線７に発生する電圧が定格電圧の150％程度に
上昇した結果であることが判つた。換言すれば、
第１図図示の発電機４において、回転子巻線６に
フライホイール用ダイオード１２がもうけられて
いることのために前記の如く進相負荷時に、当該
発電機４がいわゆる公知の野中式発電機（特公昭
33−2367号に示す自励型同期発電機）の態様をも
つて動作し、電圧制御部１４の存在に拘らず、発
電機の電圧が150％程度に上昇したことが判つ
た。即ち、電気角90゜異なつた位置にもうけた２
つの発電巻線と、回転子巻線を短絡する形でもう
けられるダイオードと、上記２つの発電巻線のい
ずれか一方の端子を橋絡する形でもうけられるコ
ンデンサとを有する形となる上記野中式発電機の
働らきが生じることが判つた。 The conventional configuration shown in FIG. 1 operates as described above, but if the tube happens to be removed while an arc lamp or the like is used as the load 5, the main power generation winding 7 A fault occurred in which a relatively high voltage was generated and damaged the electronic equipment in load 5.
As a result of investigating the cause, the following was discovered. That is, in the above case, a phase-advanced current flows as a load current, which induces a voltage from the illustrated main power generation winding 7 to the rotor winding 6, and the voltage induced in the rotor winding 6 causes the fried A DC excitation current is supplied to the rotor winding 6 through the wheel diode 12. In this case, the voltage generated in the main power generation winding 7 is extracted, and the voltage control unit 14 works to keep the excitation current from the excitation winding 8 in a cut-off state.
The voltage control unit 14 does not have the function of limiting the voltage induced in the rotor winding 6 as described above, and this is the result of the voltage generated in the main power generation winding 7 rising to about 150% of the rated voltage. It turned out that. In other words,
In the generator 4 shown in FIG. 1, since the flywheel diode 12 is provided in the rotor winding 6, when the load is advanced as described above, the generator 4 becomes a so-called nonaka type generator. (Tokuko Akira
It was found that the generator operated in the manner of a self-excited synchronous generator (as shown in No. 33-2367), and that the voltage of the generator rose to about 150% regardless of the presence of the voltage controller 14. In other words, two wires placed at positions differing by 90 degrees electrical angle
The above-mentioned Nonaka type has two power generation windings, a diode formed by shorting the rotor windings, and a capacitor formed by bridging the terminals of either one of the two power generation windings. It was found that the function of a generator was generated.
このような過電圧発生状態は、例えば負荷５に
対して力率改善用のコンデンサが接続されている
状態の下で、当該コンデンサのみの負荷となる如
き場合にも発生する危険性がある。 There is also a risk that such an overvoltage occurrence state may occur, for example, when a power factor correction capacitor is connected to the load 5 and the capacitor is the only load.
このような過電圧発生時には、一般的には過電
流状態となつて現われ、第１図図示の過電流防止
装置１が動作するはずであるが、当該装置１の限
時特性のために、負荷中の電子機器の損傷を防止
するためには十分でない。 When such an overvoltage occurs, it generally appears as an overcurrent state, and the overcurrent prevention device 1 shown in FIG. Not sufficient to prevent damage to electronic equipment.
また、負荷５が軽負荷の場合には、たとえ過電
圧発生状態となつても、過電流が負荷５に流れな
い限り、過電流防止装置１は動作せず、負荷中の
電子機器の損傷を防止するのに十分でない。 In addition, if the load 5 is a light load, even if an overvoltage occurs, the overcurrent prevention device 1 will not operate unless overcurrent flows to the load 5, preventing damage to electronic equipment under load. not enough to do.
更に、負荷中の電圧が短時間過電圧になつたか
らといつて、負荷５に供給する電圧を直ちに遮断
していたのでは、無用の遮断を行なつてしまい、
実用性に欠けるという問題があつた。 Furthermore, if the voltage supplied to the load 5 were immediately cut off just because the voltage in the load became overvoltage for a short time, it would result in unnecessary cut-off.
The problem was that it lacked practicality.
本考案はこれらの点を解決するようにしてお
り、例えば所定時間、定格電圧の130％に達した
状態の下で強制的に過電流防止装置１を作動せし
めるようにしている。 The present invention solves these problems by, for example, forcibly operating the overcurrent protection device 1 when the voltage reaches 130% of the rated voltage for a predetermined period of time.
尚、第１図中、１３は逆電圧防止用ダイオード
であつて、電圧制御部１４のトランジスタなどを
保護するものである。 In FIG. 1, reference numeral 13 is a reverse voltage prevention diode, which protects the transistors of the voltage control section 14 and the like.
第２図は本考案の１実施例を示し、前記問題点
を解決するために、図中１５ないし２０によつて
負荷に供給される過電圧を検出し、該検出信号に
もとづき過電圧・過電流防止装置１−１の接点２
を開状態にすることにより、発電機４から負荷５
に供給される過電圧を遮断している。以下説明す
る。 FIG. 2 shows an embodiment of the present invention. In order to solve the above-mentioned problem, overvoltage supplied to the load is detected by 15 to 20 in the figure, and overvoltage/overcurrent is prevented based on the detection signal. Contact 2 of device 1-1
By opening the generator 4 to the load 5,
The overvoltage supplied to the This will be explained below.
図中４ないし１４および２１は第１図を用いて
説明したものと同一あるいは等効のものであるの
で説明を省略する。 In the figure, numerals 4 to 14 and 21 are the same as or equivalent to those explained using FIG. 1, and therefore their explanations will be omitted.
第２図において、まず負荷に過電流が流れた場
合の動作について説明する。スイツチ２１がON
状態とされ、発電機４から電圧が接点２、過電流
検出巻線３およびスイツチ２１を介して負荷５に
印加されている場合に、負荷に短絡など生じ過電
流が流れたときには、過電流検出巻線３が働いて
接点２を開状態にして、発電機４から負荷５に供
給される過電流を遮断して、発電機４を保護す
る。 In FIG. 2, the operation when an overcurrent flows through the load will be explained first. Switch 21 is ON
state, and voltage is being applied from the generator 4 to the load 5 via the contacts 2, overcurrent detection winding 3, and switch 21, and if an overcurrent flows due to a short circuit in the load, overcurrent detection is activated. The winding 3 works to open the contacts 2, cutting off the overcurrent supplied from the generator 4 to the load 5, and protecting the generator 4.
次に、負荷に進相電流が流れることによる発電
機４の増磁作用に伴なう過電圧が接点２、過電流
検出巻線３、およびスイツチ２１を介して負荷５
に印加される場合について説明する。 Next, the overvoltage caused by the magnetizing effect of the generator 4 due to the phase-advanced current flowing through the load is transmitted to the load 5 via the contact 2, the overcurrent detection winding 3, and the switch 21.
The case where the voltage is applied will be explained.
負荷に印加される電圧は整流器１５によつて両
波整流され、可変抵抗１６を介してコンデンサ１
７によりリツプルが除去される。該コンデンサ１
７の両端に印加された電圧は、ツエナー・ダイオ
ード１８を介して接点２０を閉状態にする駆動巻
線１９に供給されている。今、負荷に例えば前述
の如く、所定時間、定格の130％の過電圧が印加
されたときには、前記構成にもとづき駆動巻線１
９が作動状態とされるに充分な電流が流れ、接点
２０を閉状態にする。接点２０が閉状態にされる
と、過電圧・過電流防止装置１−１にもうけられ
ている駆動巻線３′を作動状態にし、接点２を開
状態にする。これにより、発電機４からの過電圧
が負荷５に印加されるのが防止され、負荷５およ
び発電機４を保護するとともに、パルス状の過電
圧による無用な遮断を防止している。 The voltage applied to the load is double-wave rectified by the rectifier 15, and then passed through the variable resistor 16 to the capacitor 1.
7 removes ripples. The capacitor 1
The voltage applied across 7 is supplied via a Zener diode 18 to a drive winding 19 which closes contact 20. Now, when an overvoltage of 130% of the rating is applied to the load for a predetermined period of time as described above, the drive winding 1
Sufficient current flows to activate 9, causing contact 20 to close. When the contact 20 is closed, the drive winding 3' provided in the overvoltage/overcurrent prevention device 1-1 is activated, and the contact 2 is opened. This prevents overvoltage from the generator 4 from being applied to the load 5, protects the load 5 and the generator 4, and prevents unnecessary interruption due to pulsed overvoltage.
尚、可変抵抗１６を調整、あるいはコンデンサ
１７の容量を調整することにより、前記所定時
間、即ち駆動巻線１９が作動状態となる時間を任
意に設定できる。 Note that by adjusting the variable resistor 16 or the capacitance of the capacitor 17, the predetermined time, that is, the time during which the drive winding 19 is in the operating state can be arbitrarily set.
第３図は本考案の他の１実施例を示す。図中２
ないし１４、および２１は第２図のものと同一あ
るいは等効であるので説明を省略する。 FIG. 3 shows another embodiment of the present invention. 2 in the diagram
14 to 21 have the same or equivalent effect as those shown in FIG. 2, and therefore their explanations will be omitted.
第３図において、負荷５に過電流が流れた場合
の動作は、第２図図示本考案の１実施例のものと
同一であり、過電流が過電流検出巻線３によつて
検出され、接点２を開状態にすることにより、発
電機４から負荷に流れる過電流を遮断する。これ
により発電機４は保護される。 In FIG. 3, the operation when an overcurrent flows through the load 5 is the same as that of the embodiment of the present invention shown in FIG. 2, and the overcurrent is detected by the overcurrent detection winding 3. By opening the contact 2, the overcurrent flowing from the generator 4 to the load is cut off. The generator 4 is thereby protected.
次に、負荷に進相電流が流れ、前述した如く増
磁作用により発電機４の出力電圧が上昇し、前記
過電流検出巻線３が作動状態にならない範囲で負
荷に過電圧が印加された場合には、負荷５に印加
される電圧が抵抗分割され、該抵抗分割された電
圧がツエナー・ダイオード１８を介してサイリス
タ２０′のゲート端子に印加され、サイリスタ２
０′を導通状態にする。サイリスタ２０′が導通状
態にされると、サイリスタ２０′に接続された過
電圧・過電流防止装置１−２にもうけられている
駆動巻線３′に電圧が印加され、接点２を開状態
にする。これにより負荷５に流れる進相電流に伴
なう発電機４からの過電圧が負荷５に印加される
のが遮断される。 Next, when a phase-advanced current flows through the load, the output voltage of the generator 4 increases due to the magnetization effect as described above, and an overvoltage is applied to the load within a range where the overcurrent detection winding 3 does not become activated. In this case, the voltage applied to the load 5 is resistance-divided, and the resistance-divided voltage is applied to the gate terminal of the thyristor 20' via the Zener diode 18.
0' becomes conductive. When the thyristor 20' is made conductive, a voltage is applied to the drive winding 3' provided in the overvoltage/overcurrent protection device 1-2 connected to the thyristor 20', and the contact 2 is opened. . This blocks the overvoltage from being applied to the load 5 from the generator 4 due to the phase-advanced current flowing through the load 5.
以上説明した如く、本考案によれば、エンジン
発電機の出力端に従来の過電流防止装置を改良し
て特に工夫をこらした過電圧・過電流防止装置を
もうけて、これを作動させることにより、従来の
過電流防止装置のみでは防ぐことのできなかつた
負荷に流れる進相電流に伴なう発電機の出力電圧
の上昇による過電圧などを簡単な構成により確実
に防止することができ、発電機のみならず負荷を
も保護することができる。 As explained above, according to the present invention, by improving the conventional overcurrent prevention device and installing a particularly devised overvoltage/overcurrent prevention device at the output end of the engine generator, and activating this device, A simple configuration can reliably prevent overvoltage caused by a rise in the output voltage of the generator due to the phase-advanced current flowing through the load, which could not be prevented using conventional overcurrent prevention devices alone. It also protects the load.
また、本考案では、負荷５に供給する電圧が短
時間過電圧状態となつても遮断しないため、例え
ば負荷５が切り換えられた場合などに生ずるパル
ス状過電圧などによつて無用に遮断されれること
がない。 Furthermore, in the present invention, even if the voltage supplied to the load 5 is in an overvoltage state for a short time, it will not be cut off, so it will not be cut off unnecessarily due to a pulsed overvoltage that occurs when the load 5 is switched, for example. do not have.
第１図は従来の発電機の過電流防止装置、第２
図は本考案の１実施例、第３図は本考案の他の１
実施例を示す。
図中、１は過電流防止装置、１−１，１−２は
過電圧・過電流防止装置、２，２０は接点、３は
過電流検出巻線、３′，１９は駆動巻線、４は発
電機、５は負荷、７は主発電巻線、１５は整流
器、１７はコンデンサ、１６は可変抵抗器、１８
はツエナ・ダイオード、２０′はサイリスタ、２
１はスイツチを表わす。
Figure 1 shows a conventional generator overcurrent prevention device;
The figure shows one embodiment of the present invention, and Figure 3 shows another embodiment of the present invention.
An example is shown. In the figure, 1 is an overcurrent prevention device, 1-1 and 1-2 are overvoltage and overcurrent prevention devices, 2 and 20 are contacts, 3 is an overcurrent detection winding, 3' and 19 are drive windings, and 4 is a drive winding. Generator, 5 is load, 7 is main generation winding, 15 is rectifier, 17 is capacitor, 16 is variable resistor, 18
is a zener diode, 20' is a thyristor, 2
1 represents a switch.
Claims (1)
なる位置にもうけた励磁巻線と、該励磁巻線に
よつて発生した電圧を整流する整流器と、該整
流器によつて整流された電圧にもとづき励磁磁
束を発生させる回転子巻線と、該回転子巻線の
両端にもうけたフライホイール用ダイオード
と、上記回転子巻線に流れる電流を上記主発電
巻線に誘起される電圧によつて制御する電圧制
御部とを有し、内燃機関によつて駆動されるエ
ンジン発電機の過電圧・過電流防止装置におい
て、電流に応答する電流検出巻線と電圧に応答
する電圧検出巻線とをもつ回路遮断器をもうけ
ると共に、負荷供給電圧が所定電圧値を超えた
ことを検出する過電圧検出器を有し、該過電圧
検出器からの信号にもとづいて前記回路遮断器
を作動させることにより負荷に供給する電圧を
遮断することを特徴とするエンジン発電機の過
電圧・過電流防止装置。 (2) 実用新案登録請求の範囲第(1)項記載の過電
圧・過電流防止装置において、過電圧検出器に
よつて検出される信号が所定時間の間、一定電
圧値を超えた場合に回路遮断器を作動させるこ
とにより負荷に供給する電圧を遮断することを
特徴とするエンジン発電機の過電圧・過電流防
止装置。[Claims for Utility Model Registration] (1) A main power generation winding, an excitation winding located at a position 90 degrees electrically different from the main power generation winding, and rectification of the voltage generated by the excitation winding. A rectifier, a rotor winding that generates excitation magnetic flux based on the voltage rectified by the rectifier, a flywheel diode provided at both ends of the rotor winding, and a current flowing through the rotor winding. In an overvoltage/overcurrent prevention device for an engine generator driven by an internal combustion engine, the overvoltage/overcurrent prevention device has a voltage control section that controls based on the voltage induced in the main power generation winding. a circuit breaker having a voltage detection winding that responds to the line and voltage, and an overvoltage detector that detects when the load supply voltage exceeds a predetermined voltage value, based on a signal from the overvoltage detector. An overvoltage/overcurrent prevention device for an engine generator, characterized in that the voltage supplied to the load is cut off by operating the circuit breaker. (2) In the overvoltage/overcurrent prevention device described in claim (1) of the utility model registration, the circuit is interrupted when the signal detected by the overvoltage detector exceeds a certain voltage value for a predetermined period of time. An overvoltage/overcurrent prevention device for an engine generator, characterized in that the voltage supplied to the load is cut off by activating the overvoltage/overcurrent prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16699283U JPS6077225U (en) | 1983-10-28 | 1983-10-28 | Engine generator overvoltage/overcurrent prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16699283U JPS6077225U (en) | 1983-10-28 | 1983-10-28 | Engine generator overvoltage/overcurrent prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6077225U JPS6077225U (en) | 1985-05-30 |
| JPS6245480Y2 true JPS6245480Y2 (en) | 1987-12-04 |
Family
ID=30365456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16699283U Granted JPS6077225U (en) | 1983-10-28 | 1983-10-28 | Engine generator overvoltage/overcurrent prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077225U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010001256B4 (en) * | 2010-01-27 | 2023-07-06 | Robert Bosch Gmbh | Generator regulator for regulating a vehicle generator, generator device and method for regulating or controlling an electrical circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4023705Y1 (en) * | 1965-02-18 | 1965-08-12 |
-
1983
- 1983-10-28 JP JP16699283U patent/JPS6077225U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4023705Y1 (en) * | 1965-02-18 | 1965-08-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6077225U (en) | 1985-05-30 |
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