JPH0237535U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す構成図、第
２図は電流／電圧トランスデユーサの特性図、第
３図は従来のしや断器を示す構成図である。 １は電路、２は変流器、３は検出回路、４は過
電流引外し回路、５は引外しコイル、６は接点、
１０は電流／電圧トランスデユーサである。なお
、各図中、同一符号は同一又は相当部分を示す。 FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a characteristic diagram of a current/voltage transducer, and FIG. 3 is a block diagram showing a conventional circuit breaker. 1 is an electric circuit, 2 is a current transformer, 3 is a detection circuit, 4 is an overcurrent tripping circuit, 5 is a tripping coil, 6 is a contact,
10 is a current/voltage transducer. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源と負荷の間の電路に接続されてこの電路に
流れる電流を検出する変流器と、この変流器の２
次側に接続されて前記電路電流に比例する２次電
流を検出する検出回路と、この検出回路の出力側
に接続されてその検出２次電流が所定の過電流値
を超える時に出力を生じる過電流引外し回路と、
この過電流引外し回路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しや断する引外し
機構と、前記検出回路の出力側に接続されて前記
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
ことを特徴とするしや断器。 A current transformer that is connected to the electric line between the power supply and the load and detects the current flowing in this electric line, and two of this current transformer.
a detection circuit connected to the next side to detect a secondary current proportional to the circuit current; and an overcurrent connected to the output side of this detection circuit to generate an output when the detected secondary current exceeds a predetermined overcurrent value. a current trip circuit;
a tripping mechanism connected to the overcurrent tripping circuit and actuated by the output to interrupt the electric circuit; and a tripping mechanism connected to the output side of the detection circuit to adjust the detected secondary current proportional to the tripping mechanism. A breaker characterized by comprising a transducer that converts the signal into a DC voltage signal and outputs the signal.