JP2013045668A5

JP2013045668A5 -

Info

Publication number: JP2013045668A5
Application number: JP2011183302A
Authority: JP
Filing date: 2011-08-25
Publication date: 2013-12-05

Description

この発明に係る回路遮断器の製造方法は、
サーマルリレー機能を有する回路遮断器の製造方法において、
遮断容量に応じた複数の定格に関し、それぞれ所定の電流で所定の時間、通電を行い、回路遮断器の欠相カムと開閉機構部のトリップレバーの間隔を調整する調整ダイヤルを操作して強制的に開閉機構部を作動させ、
開閉機構部が作動した時の調整ダイヤルの位置を測定し、それぞれの所定の電流の値に対して、開閉機構部が作動した時の調整ダイヤルの位置を回路遮断器に付するものである。 A method of manufacturing a circuit breaker according to the present invention includes:
In a method of manufacturing a circuit breaker having a thermal relay function,
For multiple ratings according to breaking capacity, each energization is carried out for a predetermined time with a predetermined current, and the adjustment dial that adjusts the distance between the open circuit cam of the circuit breaker and the trip lever of the switching mechanism is operated forcibly. To actuate the opening and closing mechanism,
The position of the adjustment dial when the switching mechanism is activated is measured, and the position of the adjustment dial when the switching mechanism is activated is attached to the circuit breaker for each predetermined current value .

この発明に係る回路遮断器の製造方法は、遮断容量に応じた複数の定格に関し、それぞれ所定の電流で所定の時間、通電を行い、回路遮断器の欠相カムと開閉機構部のトリップレバーの間隔を調整する調整ダイヤルを操作して強制的に開閉機構部を作動させ、開閉機構部が作動した時の調整ダイヤルの位置を測定し、それぞれの所定の電流の値に対して、開閉機構部が作動した時の調整ダイヤルの位置を回路遮断器に付するものなので、カム機構を介したトリップレバーと欠相カムの間の間隔を精度良く調整でき、各製品の組立精度ばらつき、バイメタルの寸法精度、湾曲係数、抵抗率などのバラつきに対応した製品を製造できる。
その結果、各製品で定格ごとの遮断特性バラつきが減少し、整定電流で規格に応じた遮断特性を向上させることができる。 The method for manufacturing a circuit breaker according to the present invention relates to a plurality of ratings according to the breaking capacity, and energizes each of them for a predetermined time with a predetermined current. Operate the adjustment dial that adjusts the interval to forcibly activate the opening / closing mechanism, measure the position of the adjustment dial when the opening / closing mechanism operates, and for each predetermined current value , open / close mechanism Since the position of the adjustment dial when the is actuated is attached to the circuit breaker, the distance between the trip lever and open phase cam via the cam mechanism can be adjusted with high accuracy, assembly accuracy variation of each product, bimetal dimensions Products that correspond to variations in accuracy, curvature coefficient, resistivity, etc. can be manufactured.
As a result, the variation in the breaking characteristics for each rating is reduced in each product, and the breaking characteristics according to the standard can be improved with the settling current.

Claims

In a method of manufacturing a circuit breaker having a thermal relay function, with respect to a plurality of ratings according to a breaking capacity, energization is performed at a predetermined current for a predetermined time, respectively, and an open-phase cam of the circuit breaker and a trip of an opening / closing mechanism section Operate the adjustment dial that adjusts the distance between the levers to forcibly activate the opening and closing mechanism,
Measuring the position of the adjusting dial when the closing mechanism is actuated, the relative value of each predetermined current, the position of the adjusting dial when the closing mechanism is actuated to the circuit breaker A method of manufacturing a circuit breaker to be attached.

The method for manufacturing a circuit breaker according to claim 1, wherein the predetermined current is supplied and adjusted in order of a small rating.

The manufacturing method of the circuit breaker according to claim 1 or 2, wherein an adjustment scale is attached to the cover of the circuit breaker, and the adjustment dial instructs according to the adjustment scale.

The method for manufacturing a circuit breaker according to claim 1 or 2, wherein an adjustment scale is attached to the adjustment dial, and the adjustment scale is aligned with a cover of the circuit breaker.