JPH02133147U - - Google Patents
Info
- Publication number
- JPH02133147U JPH02133147U JP3962789U JP3962789U JPH02133147U JP H02133147 U JPH02133147 U JP H02133147U JP 3962789 U JP3962789 U JP 3962789U JP 3962789 U JP3962789 U JP 3962789U JP H02133147 U JPH02133147 U JP H02133147U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- current
- output
- detect
- current transformers
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Fuses (AREA)
Description
第１図はこの考案の一実施例を一部ブロツク図
で示す回路図、第２図は従来の遮断器を一部ブロ
ツク図で示す回路図、第３図はトランスデユーサ
の入出力特性図である。
図において、１Ｕ，１Ｖ，１Ｗは電路、２Ｕ，
２Ｖ，２Ｗは変流器、３Ａは検出回路、４は過電
流引きはずし回路、５は引きはずしコイル、６Ａ
は接点、７Ａは電流／電圧トランスデユーサ、８
Ｕ，８Ｖ，８Ｗは計測用端子である。なお、各図
中、同一符号は同一又は相当部分を示す。
Figure 1 is a partial block diagram of an embodiment of this invention; Figure 2 is a partial block diagram of a conventional circuit breaker; Figure 3 is a transducer input/output characteristic diagram. It is. In the figure, 1U, 1V, 1W are electric circuits, 2U,
2V, 2W is a current transformer, 3A is a detection circuit, 4 is an overcurrent trip circuit, 5 is a trip coil, 6A
is a contact, 7A is a current/voltage transducer, 8
U, 8V, and 8W are measurement terminals. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
別に接続されて各電路に流れる電流をそれぞれ検
出する変流器と、これら変流器の２次側に接続さ
れて各電路電流にそれぞれ比例する２次電流を検
出する検出回路と、この検出回路の出力側に接続
されて各検出２次電流が所定の値を越えると所定
の時限をもつて出力を生じる過電流引きはずし回
路と、この過電流引きはずし回路の出力側に接続
されて前記出力で作動されることにより前記電路
を遮断する引きはずし機構と、前記検出回路の出
力側に接続されて前記各検出２次電流を、これに
比例した直流電圧信号に変換した上で、個別に設
けられた計測用端子を通して出力するトランスデ
ユーサとを備えたことを特徴とする計測用端子付
遮断器。 Current transformers are connected individually to multiple electrical circuits installed between the power source and the load to detect the current flowing in each electrical circuit, and current transformers are connected to the secondary side of these current transformers to detect the current flowing in each electrical circuit. a detection circuit that detects a proportional secondary current; an overcurrent trip circuit that is connected to the output side of the detection circuit and generates an output with a predetermined time limit when each detected secondary current exceeds a predetermined value; A tripping mechanism is connected to the output side of the overcurrent tripping circuit and is activated by the output to interrupt the electric circuit; A circuit breaker with a measurement terminal, comprising a transducer that converts the DC voltage signal into a DC voltage signal proportional to , and outputs the signal through an individually provided measurement terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3962789U JPH02133147U (en) | 1989-04-05 | 1989-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3962789U JPH02133147U (en) | 1989-04-05 | 1989-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133147U true JPH02133147U (en) | 1990-11-05 |
Family
ID=31548706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3962789U Pending JPH02133147U (en) | 1989-04-05 | 1989-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133147U (en) |
-
1989
- 1989-04-05 JP JP3962789U patent/JPH02133147U/ja active Pending
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