JPS6321155Y2 - - Google Patents
Info
- Publication number
- JPS6321155Y2 JPS6321155Y2 JP7560282U JP7560282U JPS6321155Y2 JP S6321155 Y2 JPS6321155 Y2 JP S6321155Y2 JP 7560282 U JP7560282 U JP 7560282U JP 7560282 U JP7560282 U JP 7560282U JP S6321155 Y2 JPS6321155 Y2 JP S6321155Y2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- voltage
- resistor
- series
- gap1
- 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
- 239000003990 capacitor Substances 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 5
- 101500023488 Lithobates catesbeianus GnRH-associated peptide 1 Proteins 0.000 description 12
- 101500022510 Lithobates catesbeianus GnRH-associated peptide 2 Proteins 0.000 description 11
- 230000001681 protective effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
【考案の詳細な説明】
本考案は直列コンデンサの保護装置に係わる。
直列コンデンサには保護ギヤツプが設けられ、コ
ンデンサに異常電圧が加わつた場合、コンデンサ
を短絡するような保護手段を採つている。[Detailed Description of the Invention] The present invention relates to a protection device for a series capacitor.
A protective gap is provided on the series capacitor, and a protective measure is taken to short-circuit the capacitor if an abnormal voltage is applied to the capacitor.
第１図にこのような直列コンデンサの保護装置
として採用されている装置を示す。 FIG. 1 shows a device adopted as a protection device for such a series capacitor.
図において、C1，C2は２分割された直列コン
デンサであり、送電線に直列に接続される。コン
デンサC1，C2と並列の中点より、コンデンサC2
の両端子間に結合抵抗Ｒ１を介してパイロツトギ
ヤツプPGが接続され、前記パイロツトギヤツプ
PGと結合抵抗Ｒ１の接続点に抑制抵抗Ｒ２が接
続される。 In the figure, C 1 and C 2 are series capacitors divided into two, and are connected in series to the power transmission line. From the midpoint in parallel with capacitors C 1 and C 2 , capacitor C 2
A pilot gap PG is connected between both terminals of the pilot gap through a coupling resistor R1.
A suppression resistor R2 is connected to the connection point between PG and the coupling resistor R1.
一方、コンデンサC1とC2に主放電ギヤツプ
GAP１とGAP２とが直列接続され、前記抑制抵
抗Ｒ２の他端子は前記主ギヤツプGAP１とGAP
２との中間点に接続される。なおBPSはコンデ
ンサ設備停止時や事故時にコンデンサをバイパス
するためのバイパススイツチである。 On the other hand, the main discharge gap is connected to capacitors C 1 and C 2 .
GAP1 and GAP2 are connected in series, and the other terminal of the suppression resistor R2 is connected to the main gap GAP1 and GAP.
It is connected to the midpoint between 2 and 2. The BPS is a bypass switch that bypasses the capacitor when the capacitor equipment is stopped or in the event of an accident.
本保護装置は系統事故により過大な電流が流
れ、それによりコンデンサに過大な電圧が印加さ
れた際、この過電圧からコンデンサを保護するた
め、まずPGが放電し、これにより全電圧がGAP
１に加わつて、GAP１が自爆し、続いて全電圧
がGAP２に加わり、GAP２が自爆し、コンデン
サを短絡する。 In this protection device, when an excessive current flows due to a system fault and an excessive voltage is applied to the capacitor, in order to protect the capacitor from this overvoltage, the PG is first discharged, which reduces the total voltage to the GAP.
1, GAP1 self-destructs, then the entire voltage is applied to GAP2, GAP2 self-destructs, shorting the capacitor.
なおこの場合、コンデンサの保護電圧レベルを
Ｖとすると、PGの整定電圧はＶ／２，GAP１，
GAP２の自爆電圧はＶ／２〜Ｖの中間値にとられて
いる。 In this case, assuming that the protection voltage level of the capacitor is V, the setting voltage of PG is set to V/2, and the self-destruction voltage of GAP1 and GAP2 is set to an intermediate value between V/2 and V.
ところで、何らかの原因でPGが整定以下の電
圧V′で放電した場合、全電圧がGAP１に加わる
が、V′がGAP１の自爆電圧以下であれば、Ｒ１，
PG回路に電流が流れつぱなしになり、Ｒ１の焼
損を招く。またGAP１またはGAP２が自爆電圧
以下のV′で放電した場合、全電圧が他のギヤツ
プに加わるが、V′が自爆電圧以下であるため、
Ｒ１，Ｒ２，GAP１またはGAP２回路に電流が
流れつぱなしとなり、Ｒ１，Ｒ２の焼損を招く。 By the way, if PG discharges at a voltage V' below the set value for some reason, the entire voltage will be applied to GAP1, but if V' is below the self-destruction voltage of GAP1, R1,
Current continues to flow through the PG circuit, causing R1 to burn out. Also, if GAP1 or GAP2 is discharged at V' below the self-destruction voltage, the entire voltage will be applied to the other gap, but since V' is below the self-destruction voltage,
Current continues to flow through the R1, R2, GAP1 or GAP2 circuit, resulting in burnout of R1 and R2.
なお前者の状態はPGのガスもれ、後者の状態
はごみ、異物の侵入により生じることが考えられ
る。本考案はこのような保護装置における問題を
解消するため、結合抵抗を流れる電流を検知でき
るようにし、GAP１，GAP２の自爆電圧以下の
電圧で、パイロツトギヤツプあるいは主ギヤツプ
が低電圧放電した場合、バイパススイツチBPS
を投入あるいは送電線を遮断する等して設備を保
護するものである。 The former condition is thought to be caused by a PG gas leak, and the latter condition is thought to be caused by the intrusion of dust or foreign matter. In order to solve this problem with the protection device, the present invention makes it possible to detect the current flowing through the coupling resistor, and detects when the pilot gap or the main gap has a low voltage discharge at a voltage below the self-destruct voltage of GAP1 and GAP2. , bypass switch BPS
This is to protect equipment by turning on power or cutting off power lines.
以下図面に示す実施例について説明する。 The embodiments shown in the drawings will be described below.
第２図に示すように、コンデンサがC1，C2と
２分割され、これと並列にGAP１とGAP２とが
直列接続され、前記コンデンサC1とC2の中点と
GAP１とGAP２の中間点との間に結合抵抗Ｒ１
と抑制抵抗Ｒ２が直列に接続され、前記結合抵抗
Ｒ１と抑制抵抗Ｒ２の接続点とコンデンサC2の
他端子との間にパイロツトギヤツプPG端子が接
続される。基本的な保護回路としては、第１図に
説明したものと変るところはないが、本実施例で
は、Ｒ１と直列に変流器CT２が接続され、Ｒ１
を流れる電流を検出するように構成される。 As shown in Fig. 2, the capacitor is divided into two, C 1 and C 2 , and GAP1 and GAP2 are connected in series in parallel with this, and the midpoint of the capacitors C 1 and C 2 is
Coupling resistance R1 between the midpoint of GAP1 and GAP2
and a suppressing resistor R2 are connected in series, and a pilot gap PG terminal is connected between the connection point of the coupling resistor R1 and suppressing resistor R2 and the other terminal of the capacitor C2 . The basic protection circuit is the same as that explained in FIG. 1, but in this embodiment, a current transformer CT2 is connected in series with R1, and R1
configured to detect the current flowing through the.
このCT２に変え、第３図に示すように、抵抗
Ｒ３をＲ１と直列に接続し、この抵抗両端子に電
圧変成器PTを接続してもよい。 Instead of CT2, as shown in FIG. 3, a resistor R3 may be connected in series with R1, and a voltage transformer PT may be connected to both terminals of this resistor.
但しこの場合、R3≪R1とすることが必要であ
る。以上のように構成することにより、Ｒ１に流
れる電流をCT２またはPTで検出し、PGやGAP
１，GAP２の低電圧放電によるＲ１，Ｒ２の焼
損を防止することができる。なおCT２，PTの絶
縁階級は耐圧2KVクラスで十分である。 However, in this case, it is necessary to satisfy R3<<R1. With the above configuration, the current flowing through R1 is detected by CT2 or PT, and the current flowing through R1 is detected by CT2 or PT.
1. Burnout of R1 and R2 due to low voltage discharge of GAP2 can be prevented. Note that the insulation class for CT2 and PT is sufficient to withstand voltage class 2KV.
また正常なキヤツプの放電を検出するため、
GAP１とGAP２の間に変流器CTが従来とも設
けられるが、このCTのかわりにCT２，PTで検
出することも可能である。 Also, to detect normal cap discharge,
Although a current transformer CT is conventionally provided between GAP1 and GAP2, it is also possible to detect with CT2 and PT instead of this CT.
第１図は直列コンデンサ保護装置の一例を示
す。第２図、第３図は本考案の実施例を示す。
C1，C2…コンデンサ、Ｒ１…結合抵抗、Ｒ２
…抑制抵抗、Ｒ３…電圧検出抵抗、CT，CT２…
変流器、BPS…バイパススイツチ。
FIG. 1 shows an example of a series capacitor protection device. 2 and 3 show an embodiment of the present invention. C 1 , C 2 ... Capacitor, R1 ... Coupling resistance, R2
... Suppression resistor, R3... Voltage detection resistor, CT, CT2...
Current transformer, BPS...bypass switch.
Claims (1)
抗を介して電流抑制抵抗とパイロツトギヤツプの
端子に接続し、前記電流抑制抵抗の他端子をコン
デンサと並列に直列接続される二つの主ギヤツプ
の中間点に接続してなる保護装置において、前記
結合抵抗を流れる電流を検出する回路を設けた直
列コンデンサ保護装置。 A series capacitor is divided into two parts, the middle point of which is connected to the terminals of a current suppression resistor and a pilot gap via a coupling resistor, and the other terminals of the current suppression resistor are connected to two main gaps connected in parallel with the capacitor in series. A series capacitor protection device comprising a circuit for detecting a current flowing through the coupling resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7560282U JPS58179842U (en) | 1982-05-22 | 1982-05-22 | Series capacitor protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7560282U JPS58179842U (en) | 1982-05-22 | 1982-05-22 | Series capacitor protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179842U JPS58179842U (en) | 1983-12-01 |
| JPS6321155Y2 true JPS6321155Y2 (en) | 1988-06-10 |
Family
ID=30084952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7560282U Granted JPS58179842U (en) | 1982-05-22 | 1982-05-22 | Series capacitor protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179842U (en) |
-
1982
- 1982-05-22 JP JP7560282U patent/JPS58179842U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58179842U (en) | 1983-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3638314B2 (en) | Battery charger with fault error detection function | |
| US6411482B1 (en) | Surge protector comprising means for detecting and permanently recording an overvoltage event and panelboard employing the same | |
| JPH05501043A (en) | Loss of neutral or ground protection circuit | |
| JPS6321155Y2 (en) | ||
| JP5348695B2 (en) | Overvoltage protection element failure detection circuit and subscriber circuit | |
| JP3208868B2 (en) | Power supply system | |
| JP3420702B2 (en) | Lightning protection circuit for communication equipment | |
| JPH08140257A (en) | Protective device for dc capacitor | |
| JP3145163B2 (en) | AC input power supply | |
| JPH0729712Y2 (en) | Surge protector | |
| JP2020162341A (en) | Built-in separator spd | |
| JP3374952B2 (en) | How to protect a series inverter circuit | |
| JP2621075B2 (en) | Protection circuit | |
| RU2085414C1 (en) | Device to protect ac traction circuit in case of insulation faults in poles non-grounded to rails | |
| JPH0239183B2 (en) | SAIRISUTABARUBU | |
| KR930004804Y1 (en) | S.m.p.s. | |
| JPS5930016B2 (en) | Series capacitor protection device | |
| JP2001103660A (en) | Loading device | |
| JPS6345807Y2 (en) | ||
| JPS598422Y2 (en) | Surge absorption circuit | |
| CA1202669A (en) | Series capacitor protective circuit | |
| KR820001827Y1 (en) | Circuit breacker for over voltage and leakage current | |
| JP3231413B2 (en) | DC capacitor circuit | |
| JPH0319007A (en) | Power unit | |
| JPH0152847B2 (en) |