KR101693530B1 - Cross switching apparatus for relay - Google Patents

Abstract

According to an aspect of the present invention, a relay cross switching device includes: a housing having a space portion therein; First and second lever members inserted into both sides of the housing and disposed opposite to each other in an initial state; And first and second stoppers inserted into the upper and lower surfaces of the housing to regulate the upper and lower positions of the first and second lever members, The second lever member is held in contact with the second stopper at an initial position, and may be energized when the ends of the first and second lever members are in contact with each other.

Description

[0001] The present invention relates to a cross switching apparatus for relay,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching apparatus, and more particularly, to a cross switching apparatus for determining whether a relay is abnormal.

Generally, a digital relay refers to a device that performs a protective function and a control function such as measuring and monitoring the operation state and electricity quantity of various devices used in water, an electric switchboard, and blocking a line when an accident occurs.

These digital relays are a key part of the electronic switchgear and have functions to protect the power system of the switchboard, precise measurement and communication functions, and include the function of storing voltage and current accident waveforms in the event of an accident.

Recently, digital relays are equipped with a separate accident recording device for storing accident waveforms in the event of an accident. In addition to being capable of automatically storing and transmitting accident waveform data of current and voltage in response to recent accidents, The number of times of use has been considerably increased in recent years.

Accordingly, a digital relay having a high frequency of use in the past has many relay elements as well as many functions. Therefore, many tests are currently being conducted to test the performance of such digital relays.

However, since the digital relays currently used have various functions, various testing equipments are required to test the performance, so that the time required for preparing the testing equipments is shorter than the testing time of the digital relays There is a problem that it takes more time.

In particular, in the case of a relay tester or a breaker motion analyzer used for measuring the relay contact operating time, since the power supply signal has a delay time of 10 ms or more, there is no test method for operation time less than 10 ms.

Therefore, when two or more relays operating in the solenoid coil excitation mode are connected in series or in parallel, if both the relays are supplied with power for 10 ms by a breaker motion analyzer or the like, it is impossible to grasp which relays are operated first. This is because, when the solenoid coil is 28 OMEGA, it usually operates within 2 to 3 ms.

Japanese Unexamined Patent Publication No. 2009-296827 (Dec. 17, 2009)

Embodiments of the present invention provide a relay cross switching apparatus improved in structure to generate a pulse of power from 1 to 3 ms to discriminate between a line operation relay and a back operation relay.

According to an aspect of the present invention, a relay cross switching apparatus includes: a housing having a space portion therein; First and second lever members inserted into both sides of the housing and disposed opposite to each other in an initial state; And first and second stoppers inserted into the upper and lower surfaces of the housing to regulate the upper and lower positions of the first and second lever members, The second lever member is held in contact with the second stopper at an initial position, and may be energized when the ends of the first and second lever members are in contact with each other.

The housing includes a first through hole through which the first lever member is inserted and supported; And a second through hole into which the second lever member is inserted and supported.

The first and second through holes may further include a rubber sealing member for gripping the first and second lever members.

The housing includes a third through-hole through which the first stopper is inserted and supported; And a fourth through hole into which the second stopper is inserted and supported.

The third and fourth through-holes may further include a rubber stopper sealing member for gripping the first and second stoppers.

The first and second lever members may be formed such that opposite end portions thereof are rounded.

The first and second lever members may further include first and second insulating knobs formed of an electrically conductive metal material and formed of an insulating material that can be held by a user.

A waveform measuring device may be connected in series to any one of the first and second lever members.

The first and second lever members may be formed to have the same length.

And first and second connection grooves for wiring connection at the ends of the first and second lever members.

According to the present embodiment as described above, it is possible to instantaneously generate the power pulse in about 1 to 3 ms using the cross switching device, so that it is possible to discriminate between the line operation relay and the back operation relay.

In addition, when connecting a waveform meter on a circuit, it is possible to easily obtain data on which relay operates first through the waveform output from the waveform meter.

In addition, when connected to a waveform meter in series, it is advantageous to analyze faults because the correct operation point can be recorded as a waveform.

1 is a schematic diagram of a relay cross switching device according to the present embodiment,
2 is a view showing a relay cross switching device in a pre-operation phase,
Figure 3 shows a relay cross switching device in the operating phase,
Fig. 4 is a view showing a relay cross switching device at a post-operation stage,
FIG. 5 is a schematic view of a switching member installed in a relay apparatus for switching a relay according to the present embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood, however, that the following examples are provided to facilitate understanding of the present invention, and the scope of the present invention is not limited to the following examples. In addition, the following embodiments are provided to explain the present invention more fully to those skilled in the art. Those skilled in the art will appreciate that those skilled in the art, Will be omitted.

Hereinafter, for convenience of explanation, the left side of the drawing will be referred to as the left side, and the right side of the drawing as the right side.

Fig. 1 is a schematic diagram of a relay cross switching device according to the present embodiment, Fig. 2 is a view showing a relay cross switching device in a pre-operation phase, Fig. 3 is a view showing a relay cross switching device in an operation step, And FIG. 5 is a view schematically showing a switching member provided in a relay cross switching device according to the present embodiment.

As shown in FIG. 1, the cross switching apparatus 100 according to the present embodiment may be installed in order to determine whether or not the relay is normally operated by being connected in series to a power system to which at least one relay is connected.

That is, as shown in the figure, the first relay 20 and the second relay 30 may be connected in series to the field power source 10, which is formed of either DC or AC. In this case, The cross switching device 100 according to the present embodiment can be connected to the circuit wiring in order to judge whether or not the normal operation of the inverter 20 (30) is normal. The waveform measuring device 40 is connected to one end of the cross switching device 100 to determine and monitor an instantaneous waveform of the first and second relays 20 and 30. [

The cross switching apparatus 100 according to the present embodiment may include a housing 110, a first lever member 210, and a second lever member 220 as shown in FIGS.

The housing 100 may have a space portion therein and may be provided in a substantially rectangular box shape as shown in the figure. At this time, a first through-hole 111 is formed on one side wall of the housing 100, and a second through-hole may be provided on a surface facing the first through-hole 111.

The first and second through holes 111 and 112 may be formed of an elastically deformable material such as rubber or silicone and may be cut into at least two slits so that the first and second through holes 111 and 112 Can be freely moved. The first and second through holes 111 and 112 may be provided in a substantially circular shape as shown in FIG. The sealing member may be interposed between the first and second through holes 111 and 112 to prevent the outer peripheral surfaces of the first and second lever members 210 and 220 from being separated have.

Third and fourth through holes 113 and 114 may be formed on the upper and lower surfaces of the housing 110, respectively. At this time, the third and fourth through holes 113 and 114 may have the same structure as the first and second through holes 111 and 112, and may have a corresponding size. However, the present invention is not limited thereto and may vary depending on the sizes of the first and second stoppers 120 and 130 inserted into the third and fourth through holes 113 and 114.

The first and second stoppers 120 and 130 are inserted into the upper and lower surfaces of the housing 110 as shown in FIG. Can be regulated. According to the present embodiment, the first stopper 120 and the second stopper 130 may be formed in the same thickness and size, and may be made of an insulating material. The first and second stoppers 120 and 130 may be inserted and coupled at a first depth h1 and a second depth h2, respectively. At this time, the first and second depths h1 and h2 may have the same size. The moving distance and speed of the first and second lever members 210 and 220 can be adjusted by adjusting the sizes of the first and second depths h1 and h2.

The first lever member 210 may be inserted into the first through hole 111 formed in one side wall of the housing 110 as shown in FIG. 5, the first lever member 210 may be formed with a rounded portion R having a rounded end, and the first lever member 210 may have a first handle 211 ). At this time, the first handle 211 may be formed of an insulating material such as rubber, urethane, silicone, or the like. However, it is not limited thereto, and any material that can be constituted by an insulator including a resin material can be used. A first connection groove 212 is formed on the inside of the first handle 211 so that a wire W1 in which the sheath W1 on the wiring forming the power system is escaped can be inserted and coupled. At this time, the first connection groove 212 may be formed integrally with the first lever member 210, and the first lever member 210 may be formed of a metal material for energization. With this configuration, it is possible to directly connect the first lever member 210 to the wiring without any additional connection means.

Although not shown, the second lever member 220 may have the same configuration as the first lever member 210 described above, and accordingly, the second lever member 220 may also have the same configuration as the first lever member 210, The wire W1 from which the sheath W1 is escaped can be inserted and engaged with the second connection groove 222. [

Meanwhile, the first and second lever members 210 and 220 configured as described above are inserted into both sides of the housing 110, and may be disposed opposite to each other in the initial state.

At this time, the first lever member 210 is contacted and supported by the first stopper 120 at an initial position, as shown in FIG. 2, and the second lever member 220, (Not shown).

When operating the cross switching device according to the present embodiment, the user holds the first and second knobs 211 and 221 in the opposite direction to the first and second lever members 220 are rotated.

3, the first lever member 210 is rotated toward the bottom surface on which the second stopper 130 is installed, and the second lever member 220 is rotated by the first stopper 120 The ends of the first and second lever members 210 and 220 can be instantaneously contacted in the middle portion thereof. At this time, the depths of insertion of the first and second lever members 210 and 220 can be adjusted so that the lengths L1 and L2 of the first and second lever members 210 and 220 are the same and the ends thereof overlap each other. That is, in order to form a long contact time in the round portion R at the end, the respective insertion depths are formed deeper and in order to shorten the contact time, the respective insertion depths are made shallow, It can be configured as much as possible.

According to another embodiment of the present invention, there is further provided a solenoid unit 200 which is operated through the control of the control module in the movement of the first and second lever members 210 and 220, The movement of the lever members 210 and 220 can be precisely controlled. For example, when the control signal of the control module is applied at the time when the energization test is required, the solenoid unit 200 performs the test on the remote without the hassle of the user gripping the first and second grips 211 and 221 Can be controlled.

When the first and second relays 20 and 30, which normally operate in the solenoid coil excitation mode, are connected in series, only the power of about 10 ms can be supplied to each relay 20 (30) When any one of the first and second relays 20 and 30 is in the solenoid coil excitation mode, the operation delay time is only 2 to 3 ms, so it is difficult to understand which relay is operated. However, according to the present embodiment, when the power supplied from the power supply unit 10 is supplied using the momentary contact and separation of the first and second lever members 210 and 220 according to the present embodiment, To 3 ms can be instantaneously applied, it is possible to discriminate between the line operation relay and the back operation relay. In particular, when the waveform measuring device 40 is connected in series as shown in FIG. 1, it is possible to confirm the correct operation time with a waveform, and to perform the failure analysis by storing the data.

According to the present embodiment as described above, it is possible to instantaneously generate the power pulse in about 1 to 3 ms using the cross switching device 100, so that it is possible to discriminate between the line operation relay and the back operation relay.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100; Cross switching device 110; housing
111; A first through hole 112; Second through hole
113; A third passage 114; The fourth passage
200; A solenoid unit 210; The first lever member
211; A first handle 220; The second lever member
221; Second handle

Claims (10)

A housing having a space portion therein;
First and second lever members inserted into both sides of the housing and disposed opposite to each other in an initial state;
First and second stoppers inserted into the upper and lower surfaces of the housing to regulate the upper and lower positions of the first and second lever members; And
And a solenoid unit for rotating the first and second lever members in opposite directions,
The first lever member is held in contact with the first stopper at an initial position,
The second lever member is held in contact with the second stopper at an initial position,
And when the ends of the first and second lever members are in contact with each other, energization is performed.
The connector according to claim 1,
A first through hole through which the first lever member is inserted and supported; And
And a second through hole into which the second lever member is inserted and supported.
3. The apparatus of claim 2, wherein the first and second through-
And a lever sealing member made of a rubber material for gripping the first and second lever members.
The connector according to claim 1,
A third through-hole through which the first stopper is inserted and supported; And
And a fourth through hole into which the second stopper is inserted and supported.
5. The apparatus of claim 4, wherein the third and fourth through-
And a rubber stopper sealing member for gripping the first and second stoppers.
The method according to claim 1,
Wherein the first and second lever members are formed such that opposed ends of the first and second lever members are rounded.
The method according to claim 1,
Wherein the first and second lever members are formed of a metal material that can be energized,
And a first and a second insulation handle formed of an insulating material that can be held by a user.
The method according to claim 1,
Wherein the waveform measuring device is connected in series to any one of the first and second lever members.
The method according to claim 1,
Wherein the first and second lever members are formed to have the same length,
Wherein the first and second lever members are configured to adjust an insertion depth of the first and second lever members,
And the insertion depth of the first and second stoppers can be adjusted.
10. The method of claim 9,
And first and second connection grooves for wiring connection at the ends of the first and second lever members.

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