JPH10160762A - Voltmeter for tt measurement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a voltmeter by which a voltage can be confirmed quickly so as to be tested safely and surely by a method wherein insertion terminals on which color-coded marks are put are inserted into color-coded buried trip lock terminals. SOLUTION: Color-coded terminals 3, 4 are installed at a voltmeter 1 and a voltmeter 2 in each of which a graduation 0 is engravded in the center and in each of which a graduation -75V and a graduation +75V are engraved on the left and the right. Then, color-coded banana terminals 17 are attached to lead wires 16 which are attached to a terminal plug 14 through a grip 15, they are inserted into the color-coded terminals 3, 4 at the voltmeters 1, 2, and a voltage is measured. Thereby, the voltage can be confirmed quickly so as to be tested safely and surely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for confirming the voltage of a trip lock terminal attached to a control panel when a control panel installed in a power station, a substation, a switchyard, or the like is stopped. .

[0002]

2. Description of the Related Art In a conventional test method, generally, when checking a circuit state, an insertion type trip lock terminal is turned to the back side of a control panel and a voltage is individually checked by a tester. In the stat type test terminal, the voltage is individually confirmed from the surface of the control panel.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a mark can be marked on an insertion terminal and inserted upward into an embedded trip lock terminal so that a voltage can be checked quickly and safely and a reliable test can be performed. It was developed as follows. It should be noted that the stap lip lock terminal has also been developed so as to be solved only by making contact from the surface.

[0004]

Means for Solving the Problems To explain the configuration up to now, zero is provided at the center of the voltmeter scale, and a voltmeter 1.2 engraved to + (plus)-(minus) 75 volts on the left and right is color-coded. The terminals 3 and 4 are attached, and the ground wire 18 is connected to the ground from the terminal where the opposing terminals 5 and 6 are connected to the combo (watari) 9. The voltmeter 1.2 is attached to the middle box 7 of the box 8, and when the lid is opened, the voltmeter slides sideways so that the voltmeter comes to the center and becomes vertical. In addition, since the insertion port of the embedded trip lock terminal shown in FIG. 5 is 10 mm on the upper side and 8 mm on the lower side, a plug to be adapted was developed with a structure as shown in FIG. Things. A color-specific banana terminal 17 is mounted on a lead wire 16 passing through the developed handle 15 and inserted into a color-specific banana terminal of the voltmeter 1.2 for connection.

[0005]

Next, the operation of the present invention will be described. In order to solve the above-described problems, the handle 1 attached to the terminal plug 14 is not required.
A banana terminal 17 for each color is attached to a lead wire 16 passed through 5 and inserted into the terminals 3 and 4 for each color of the voltmeter 1.2 to measure a voltage.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment of the present invention, both a conventional stat type trip lock terminal TT and a plug of an embedded type trip lock terminal have been developed. In the second method, a banana terminal for each color is provided on a lead wire passing through a handle attached to a plug, and inserted into the color terminals 3 and 4 of the voltmeter 1.2. Further, the scale of the voltmeter 1.2 is provided with zero at the center and is engraved on the left and right at + (plus)-(minus) 75 volts, so that it is possible to halve the positive voltage and the negative voltage. Next, when the voltmeter stand is juxtaposed and attached to the box 8 and the lid is opened, the middle box 7 is mounted so that it slides sideways and stops at the center. When not in use, accessories can be stored and placed under the inner box 7.

[0007]

The device according to the present invention has excellent features of small size and light weight, and can be easily achieved with a voltmeter for TT measurement which is indispensable for the test.

[Brief description of the drawings]

FIG. 1 is an external view of a box equipped with a voltmeter.

FIG. 2 is an external view of a TT terminal plug.

FIG. 3 is an external view attached to a TT.

FIG. 4 is an external view of a trip lock terminal plug (insertion type).

FIG. 5 is a front view of a trip lock terminal.

FIG. 6 is a short-circuit plug

FIG. 7 is a ground wire

FIG. 8 is a diagram showing a part of an electric circuit.

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[Procedure amendment]

[Submission date] November 28, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Explanation of sign

[Correction method] Added

[Correction contents]

[Description of References] Fig. 1-1, 2 Voltmeter Fig. 1-3, 4, 5, 6 Voltmeter Terminal Fig. 1-7 Middle Box Fig. 1-8 Box Fig. 1-9 Combination of Terminal Fig. 2-Fig. 3- 10 Contact plug Fig. 2-11 Lead wire Fig. 2-12 Banana terminal by color Fig. 2-13 Plug fertilizer Fig. 4-14 Insert plug Fig. 4-15 Plug fertilizer Fig. 4-16 Lead wire Fig. 4-17 Color Separate banana terminal Fig. 5 Embedded terminal Fig. 6 Short bar for embedded terminal Fig. 7-18 Ground wire Fig. 8 Circuit diagram

Claims (1)

[Claims] 1. A voltmeter 1.2 is provided with a zero at the center, a minus (−) sign on the left, and a plus (+) sign on the right. The banana terminals 12 and 17 are attached to the lead wires 11 and 16 through the handles 13 and 15 attached to the plugs 10 and 14 developed so that they can be attached to and detached from both the plug-in type trip lock terminal and the stat type trip lock terminal. It is inserted into the color-specific terminals 3 and 4 of the voltmeter 1.2. A voltmeter device for TT measurement of a test circuit configured as described above.