JPH0317574U

JPH0317574U -

Info

Publication number: JPH0317574U
Application number: JP7842189U
Authority: JP
Priority date: 1989-07-03
Filing date: 1989-07-03
Publication date: 1991-02-21

Description

[Brief explanation of drawings]

第１図は本考案に係るクリツプ・オン電流計の
要部の一実施例の構成図、第２図イ，ロは第１図
の動作を説明する為の図、第３図はクリツプ・オ
ン電流計の構成図、第４図は従来のクリツプ・オ
ン電流計の要部の構成図、第５図イ，ロは第４図
の動作を説明する為の図、第６図は第１図及び第
４図の作用を説明するための図である。１……測定器本体、２……クリツプ式変流器、
２ａ，２ｂ……変流器部、３……手掛け部、６０
……コイルバネ。 Figure 1 is a configuration diagram of an embodiment of the main part of the clip-on ammeter according to the present invention, Figure 2 A and B are diagrams for explaining the operation of Figure 1, and Figure 3 is a diagram of the clip-on ammeter according to the present invention. A configuration diagram of an ammeter. Figure 4 is a configuration diagram of the main parts of a conventional clip-on ammeter. Figure 5 A and B are diagrams for explaining the operation of Figure 4. Figure 6 is a diagram similar to Figure 1. and FIG. 4 is a diagram for explaining the effect of FIG. 1...Measuring instrument body, 2...Clip type current transformer,
2a, 2b...Current transformer section, 3...Handle section, 60
...Coil spring.

Claims

[Scope of utility model registration request]

In a clip-on ammeter, which has a current transformer in which a pair of semicircular current transformers are made into an annular shape by the repulsive force of a coil spring to clip the object to be measured, the coil springs are usually almost closed.
A clip-on ampermeter characterized in that it uses a coil spring that is shaped like a letter and has correlated dimensions such that it becomes approximately "U" shaped when compressed.