JPS607608U - Sealed switchgear - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a simplified partial cross-sectional view showing an example of a closed type switchgear;
Figure 2 is a single line diagram showing an example of a sealed switchgear, Figure 3 is a conventional terminal inserted into the grounding circuit of a lightning arrester, a is a partial front view, b is a side view, and Figure 4 is the implementation of the present invention. A shows a partial front view of the terminal used in the example, and b shows a side view when an ammeter terminal is attached. 1: Outer shell container, 2: Insulating medium, 5: Electrical discharge measuring device,
8: Terminal for leakage current measurement, 9: Insulation support stand, 10
, 11: Embedded stud, 17: Moving conductor, 22.2
3: Tap hole.

Claims (1)

[Scope of utility model registration request] In a case where an insulating medium is filled and sealed in an outer shell container and a circuit breaker, a lightning arrester, and other internal components are housed therein, a grounding terminal of the lightning arrester is led out from the outer shell container,
This is led from the discharge source recording device to the grounding point via a leakage current measuring terminal having a conductor so as to bridge the embedded studs embedded at a distance in the insulating support base, and then connected to the head of the embedded stud. A sealed switchgear characterized by having a tapped hole for tightening a terminal of a leakage current measuring device.