KR20160106411A - Test apparatus of magnetic contactor - Google Patents

Test apparatus of magnetic contactor Download PDF

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Publication number
KR20160106411A
KR20160106411A KR1020150029294A KR20150029294A KR20160106411A KR 20160106411 A KR20160106411 A KR 20160106411A KR 1020150029294 A KR1020150029294 A KR 1020150029294A KR 20150029294 A KR20150029294 A KR 20150029294A KR 20160106411 A KR20160106411 A KR 20160106411A
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KR
South Korea
Prior art keywords
terminal
electromagnetic contactor
connection
base portion
test equipment
Prior art date
Application number
KR1020150029294A
Other languages
Korean (ko)
Inventor
김용환
Original Assignee
엘에스산전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR1020150029294A priority Critical patent/KR20160106411A/en
Publication of KR20160106411A publication Critical patent/KR20160106411A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
    • G01R19/16509—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using electromagnetic relays, e.g. reed relay
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

The present invention provides a test apparatus in which wiring is unnecessary in a test apparatus for an electromagnetic contactor. The test apparatus for an electromagnetic contactor according to the present invention comprises: a base having a horizontal base portion and a vertical base portion; And a plurality of first terminal cylinders which are connected to the vertical base portion so as to be able to move up and down along the vertical base portion of the base and which can be connected to the power source side and the load side terminals of the electromagnetic contactor, And a lifting terminal connection block having a plurality of test equipment connection terminal portions having exposed connection conductor portions.

Description

TEST APPARATUS OF MAGNETIC CONTACTOR [0001]

The present invention relates to a testing apparatus for an electromagnetic contactor, and more particularly to a testing apparatus for an electromagnetic contactor which requires no separate wiring for connecting an electromagnetic contactor to a test equipment.

Electromagnetic contactors can be tested during the development and manufacture of new products, which may include, for example, testing to measure the time it takes to close an electromagnetic contactor and the time it takes to open.

A configuration for testing the electromagnetic contactor according to the related art in the opening / closing operation time test will be described with reference to FIG.

1 is a circuit diagram showing a configuration of a wiring circuit for testing an electromagnetic contactor, and an electrical connection method for testing will be described with reference to this.

A first terminal portion 61 including an R-phase terminal and an S-phase terminal T-phase terminal for connecting a power-source-side terminal of an electromagnetic contactor (not shown) The second terminal portion 62 including the U-phase terminal, the V-phase terminal and the W-phase terminal is connected to the three power source-side terminals and the load-side three terminals of the electromagnetic contactor to be tested, respectively.

A first channel of an osciloscope and a probe on the ground side of the first channel are connected to a node 1 and a node 4 of FIG. 1 as test equipment, And the second and third channels of the oscilloscope are connected to the node 3 and the node 6, respectively, and the third and third grounding probes of the third channel are connected to the nodes 3 and 6, respectively.

The time during which the electromagnetic contactor operates from the closed state to the open state is determined by the opening / closing control signal terminal of the electromagnetic contactor (normally two contacts are provided separately from the power source side and the load side terminal so as to connect the two- The coil inside the electromagnetic contactor electrically connected to the open / close control signal terminal is demagnetized, and the movable contact is separated from the corresponding fixed contact by the elastic force of the return spring (not shown) The electromagnetic contactor is opened.

At this time, the waveform of the DC voltage signal supplied by the battery B is extinguished to the oscilloscope, so that the time required for opening the electromagnetic contactor can be tested.

1, reference numeral 7 designates a power supply line supplied from the battery B to the first terminal portion 61 and the second terminal portion 62 side.

On the other hand, when the control signal is applied to the open / close control signal terminal of the electromagnetic contactor, the coil in the electromagnetic contactor electrically connected to the open / the electromagnetic contactor is brought into the closed state while the movable contact moves to contact the corresponding fixed contact by overcoming the elastic force of the return spring of the unshown.

At this time, a waveform of the DC voltage signal supplied by the battery B is generated in the oscilloscope, so that the time required for closing the electromagnetic contactor can be tested.

However, in the above-described apparatus for testing a magnetic contactor according to the related art, a first line between a node 1 and a fourth node, a first line between a second node and a fifth node, a first line between the third node and the sixth node, Three wires of the U, V, and W phase terminals of the two terminal portions 62, and at least seven wires such as one wire connecting these wires and the battery B are required, requiring a lot of wires, There is a problem that can cause confusion in the worker. Further, since the probes of the oscilloscope are directly connected to the leads, there is a problem that it is inconvenient for the connection to be formed (for example, peeling of the corresponding lead portion).

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an apparatus for testing an electromagnetic contactor in which wiring is unnecessary.

The object of the present invention is to provide an apparatus for testing an electromagnetic contactor,

A horizontal base portion for providing a means for mounting the magnetic contactor to be tested;

A vertical base coupled to the horizontal base; And

A plurality of test equipment connection terminals connected to the vertical base portion so as to be able to move up and down along the vertical base portion and having a plurality of terminal cylinders connectable to the terminals of the electromagnetic contactor and a connection conductor portion for connecting external test equipment; And a lifting and lowering terminal connecting portion having a portion for connecting the lifting terminal and the lifting terminal connecting portion.

Further comprising an elevation drive mechanism capable of driving the elevation terminal connection board to move up and down.

According to a preferred aspect of the present invention, the elevating drive mechanism includes: a rack gear portion provided along the vertical direction to the vertical base portion; A pinion gear capable of moving up and down with a gear teeth engaged with the rack gear portion; An operating wheel (WHEEL) coaxially connected to rotate the pinion gear; And a connection mechanism for transmitting a driving force of the pinion gear to the elevation terminal connection block.

According to another preferred aspect of the present invention, the connection mechanism includes a connection pillar extending from the elevation terminal connection to the lower portion and having a through-hole allowing the shaft of the pinion gear to penetrate and rotate.

According to still another aspect of the present invention, there is provided an apparatus for testing an electromagnetic contactor according to the present invention, comprising: a power source for supplying power to the first terminal cylinder and the test equipment connection terminal unit, .

According to another preferred aspect of the present invention, the test equipment connection terminal portion is constituted by a semicircular terminal portion in which a conductor is exposed.

According to another preferred aspect of the present invention, at least one fixed support portion is provided on the horizontal base portion of the base so as to project upward from the upper surface of the horizontal base portion so as to prevent the movement of the electromagnetic contactor during the test.

The apparatus for testing an electromagnetic contactor according to the present invention is characterized in that the first terminal cylinder of the elevator terminal connecting rod is operated to descend and connected to the power source side and the load side terminal of the electromagnetic contactor and the exposed test equipment connecting terminal portion of the elevator terminal connecting rod is connected to the test equipment By connecting the probe to the probe, it is possible to provide an effect that a test for an electromagnetic contactor can be performed without the need for wiring and an easy connection of a probe of the test equipment.

The apparatus for testing an electromagnetic contactor according to the present invention includes an elevation driving mechanism, so that it is possible to provide an effect that the elevation terminal connection stand can be driven to move up and down.

The apparatus for testing an electromagnetic contactor according to the present invention further includes a power supply provided in the elevator terminal connection block for supplying power to the first terminal cylinder and the test equipment connection terminal portion, As a device, it appears as a signal waveform on an oscilloscope, which can provide an effect that a test on an electromagnetic switch can be easily and visually confirmed.

Since the test apparatus connection terminal of the present invention is constituted by the semicircular terminal portion in which the conductor is exposed, the probe of the oscilloscope as the test equipment is connected to the connection terminal portion of the test equipment formed with the corresponding half- So that it is possible to provide a simple effect of connecting the test equipment.

The apparatus for testing an electromagnetic contactor according to the present invention is characterized in that the horizontal base portion of the base is provided with at least one fixed support portion protruding upward from the upper surface of the horizontal base portion so that the electromagnetic contactor can be fixed Can provide an effect.

1 is a circuit diagram showing a configuration of a wiring circuit for testing an electromagnetic contactor according to the prior art,
2 is a perspective view showing an apparatus for testing an electromagnetic contactor according to a preferred embodiment of the present invention,
3 is a front view of an apparatus for testing an electromagnetic contactor according to a preferred embodiment of the present invention,
4 is a side view of an apparatus for testing an electromagnetic contactor according to a preferred embodiment of the present invention,
5 is a vertical cross-sectional view of an apparatus for testing an electromagnetic contactor according to a preferred embodiment of the present invention,
6 is a circuit diagram showing an electrical configuration of an apparatus for testing an electromagnetic contactor and an electromagnetic contactor to be tested according to a preferred embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

2 to 5, an apparatus 100 for testing an electromagnetic contactor according to a preferred embodiment of the present invention includes a horizontal base portion 10, a vertical base portion 20, (30).

The horizontal base (BASE) portion 10 is means for providing a means for placing the electromagnetic contactor to be tested.

The vertical base portion 20 is a base portion to be coupled with the horizontal base.

At least one fixed supporting portion 11 is provided on the horizontal base portion 10 so as to protrude upward from the upper surface of the horizontal base portion so as to prevent the movement of the electromagnetic contactor 200 during the test. According to a preferred embodiment, four fixed supports 11 may be provided corresponding to the lower four corners of the electromagnetic contactor 200. According to a preferred embodiment, each of the fixed supports 11 may be constructed of protrusions whose cross section is "L" shaped to hold the lower four corners of the electromagnetic contactor 200. [

The elevation terminal connection block 30 is connected to the vertical base portion 20 so as to be able to move up and down along the vertical base portion 20.

The elevating terminal connection board 30 is provided with a passage (not shown) formed to correspond to the transverse section of the vertical base portion 20 in the rear (rear) position in order to allow the vertical base portion 20 to pass therethrough. Here, the rear (back) means a portion close to the vertical base portion 20, and the front (reverse) means a portion far from the vertical base portion 20.

The vertical base portion 20 is disposed on the power supply side terminals 211, 212 and 213 of the electromagnetic contactor 200 and the load side terminals (located below the plurality of circular terminal cover openings indicated by 210 in FIG. 2, A plurality of first terminal cylinders 61 and a plurality of second terminal cylinders 62 which can be connected to a power supply side terminal (not shown) The first test equipment connection terminal portions 31, 32, and 33 and the second test equipment connection terminal portions 34, 35, and 36, respectively.

The three first terminal cylinders 61 on the front side and the three second terminal cylinders 62 on the rear side are respectively provided to extend downward from the front and rear portions of the bottom surface of the elevation terminal connection board 30, (Either the front side or the rear side in Fig. 2) and the load side (the side opposite to the power source side in the front side or the rear side in Fig. 2) of the electromagnetic contactor 200 And may be provided corresponding to three phases of AC. In the case where the test apparatus 100 according to the present invention is used for a quadrupole electromagnetic contactor, four first terminal cylinders 61 in the front and a second terminal cylinder 62 in the rear may be provided.

The test equipment connection terminal portions 31, 32, 33, 34, 35 and 36 are provided with a half ring in which conductors are exposed to the outside of the lifting terminal connection base 30, Type terminal portion. Here, the exposed terminal portion is not limited to a semicircular shape but may have a modified embodiment such as a "V" shape or a "C" shape.

The probes for each pair of channels of the test equipment, ie, the signal side channels (eg, channel 1, channel 2 and channel 3) and the probes for the ground channel (probes for channel 1 ground, probes for channel 2, Three pairs of left and right pairs of the first test equipment connection terminal portions 31, 32 and 33 and the second test equipment connection terminal portions 34, 35 and 36 correspond to the upper portion of the lift terminal connection frame 30 In Fig. 2, along the front-rear direction (the front side in the drawing is forward and the opposite side is rearward).

The installation positions of the plurality of first terminal cylinders 61 and the plurality of second terminal cylinders 62 in the elevation terminal connection block 30 are set to the power supply side terminals 211, 212, 213) and the load side terminal (not shown hidden in the terminal cover in Fig. 2 but located behind the terminals 211, 212, 213, see reference numerals 214, 215, 216 in Fig. 6) A plurality of first terminal cylinders 61 and a plurality of second terminal cylinders 62 are connected to the power source side terminal of the corresponding electromagnetic contactor 200 and the load side Terminals. ≪ / RTI >

The apparatus 100 for testing an electromagnetic contactor according to the preferred embodiment of the present invention further includes a lifting drive mechanism capable of lifting the lifting / lowering terminal connecting piece 30 to move up and down.

The elevating and lowering driving mechanism further includes a rack gear portion 21, a pinion gear 50, an operating wheel WHEEL 40, and a connecting mechanism (see the indication portions of the reference numerals 70a and 70b in FIG. 3) do.

The rack gear portion 21 may be provided on the left and right sides along the vertical direction to the vertical base portion 20 of the base.

The pinion gear 50 is supported on the shaft 41 and is rotatable. The rack gear portion 21 is meshed with a gear so that the pinion gear 50 can move up and down.

The shaft 41 passes through a pair of connecting pillars 70a and 70b extending downward from the elevating terminal connecting piece 30 as the connecting mechanism and is supported by the connecting pillars 70a and 70b do.

The manipulation wheel 40 is a means to be coaxially connected to the pinion gear 50 on the shaft 41 in order to obtain the power for rotating the pinion gear 50. [ The manipulation wheel 40 can be gripped by the tester and manually rotated, and can be electrically operated by being connected to the electric motor through power transmission means such as a belt, gear, or the like.

The connection mechanism is provided as a means for transmitting the lift driving force of the pinion gear (50) to the lift terminal connection board (30).

According to a preferred embodiment, the connecting mechanism comprises a pair of through-holes extending downwardly from the elevating terminal connecting piece 30 and allowing the shaft 41 of the pinion gear 50 to penetrate and rotate And the connecting columns 70a and 70b.

5, the apparatus 100 for testing an electromagnetic contactor according to the preferred embodiment of the present invention is installed in the elevating terminal connection board 30, and the first terminal cylinder 61, the second terminal cylinder 61, And a power source 37 for supplying power to the terminal cylinder 62, the first test equipment connection terminal portions 31, 32, 33 and the second test equipment connection terminal portions 34, 35, 36. According to a preferred embodiment, the power source 37 may be a battery that supplies DC power.

An electrical configuration of an apparatus 100 for testing an electromagnetic contactor according to a preferred embodiment of the present invention will be described with reference to FIG. 6 which is a circuit diagram.

As shown in the figure, one side of the power supply 37 (that is, the positive electrode of the battery) is connected to the first test equipment connection terminal portions 31, 32, 33 and the second test equipment connection terminal portions 31, And are coupled to each other in parallel.

The second test equipment connection terminal portions 34, 35, 36 arranged to face the first test equipment connection terminal portions 31, 32, 33 are connected to the three first terminal cylinders 61.

A probe for each channel of the test equipment 300, for example, an oscilloscope, is connected between the first test equipment connection terminal portions 31, 32, 33 and the second test equipment connection terminal portions 34, 35, . 2, between the second test equipment connection terminal portions 34, 35, and 36, which are opposed to the first test equipment connection terminal portions 31, 32, 33 in a state where the test equipment 300 is not connected, And may be physically and electrically separated from each other as may be.

The other side (i.e., the cathode of the battery) of the power source 37 is connected to the three second terminal cylinders 62, and each of the second terminal cylinders 62 is connected in parallel with each other.

The first terminal cylinder 61 is connected to the three power sources of the electromagnetic contactor 200. The first terminal cylinder 61 is connected to the power source terminal of the electromagnetic contactor 200, When the second terminal cylinder 62 is brought into contact with the three load side terminals 214, 215, and 216 of the electromagnetic contactor 200 by making contact with the side terminals 211, 212, and 213 of the electromagnetic contactor 200, 1 test apparatus connection terminal portions 31, 32 and 33, the test equipment 300, the second test equipment connection terminal portions 34, 35 and 36, the first terminal cylinder 61, the electromagnetic contactor 200, A closed circuit leading to the cathodes of the two-terminal cylinder 62 and the power source 37 is formed.

The operation of the apparatus 100 for testing an electromagnetic contactor according to the preferred embodiment of the present invention constructed as described above will be described with reference to Figs. 2 to 6. Fig.

The electromagnetic contactor 200 to be tested is mounted on the horizontal base portion 10 in Fig.

Next, the probes for the signal side channels (for example, channel 1, channel 2 and channel 3) of the test equipment 300 are connected to the test equipment connection terminal portions 31, 32 and 33 and the test equipment connection terminal portions 34, (probe for channel 1 ground, probe for channel 2 ground, probe for channel 3 ground).

In this state, the operating wheel 40 is grasped and rotated in, for example, a counterclockwise direction.

A pair of pinion gears 50 coaxially connected on the operating wheel 40 and the shaft 41 are lowered while being rotated counterclockwise along the rack gear portion 21 of the vertical base portion 20, The lift terminal connecting piece 30 connected to the pinion gear 50 via the shaft 41 and the connecting columns 70a and 70b also descends.

The first terminal cylinder 61 and the second terminal cylinder 62 attached to the lifting terminal connection base 30 descend while the power source side terminals 211 and 211 of the electromagnetic contactor 200 mounted on the horizontal base unit 10 are lowered, 212, and 213 and the load side terminals 214, 215, and 216, respectively.

When the first terminal cylinder 61 and the second terminal cylinder 62 come into contact with the power source side terminals 211, 212 and 213 and the load side terminals 214, 215 and 216 of the electromagnetic contactor 200, The voltage waveform of the power supply 37 appears on a screen of the test equipment 300 on a channel-by-channel basis when the power supply 37 is in the ON state (the closed state in which the movable contact in the electromagnetic contactor contacts the corresponding fixed contact).

When the operating wheel 40 is rotated clockwise in this state, a pair of pinion gears 50, which are coaxially connected to the operating wheel 40 and the shaft 41, The lifting and lowering terminal connecting piece 30 connected to the pinion gear 50 via the shaft 41 and the connecting pillars 70a and 70b also ascends.

The first terminal cylinder 61 and the second terminal cylinder 62 attached to the elevation terminal connection block 30 are also elevated so that the power supply side terminals 211 and 211 of the electromagnetic contactor 200 mounted on the horizontal base portion 10 are raised, 212, and 213 and the load side terminals 214, 215, and 216, respectively.

When the first terminal cylinder 61 and the second terminal cylinder 62 are separated from the power source side terminals 211, 212 and 213 and the load side terminals 214, 215 and 216 of the electromagnetic contactor 200, The voltage waveform of the power source 37 for each channel is 0 (zero) on the screen of the test equipment 300 irrespective of the ON state (the closed state in which the movable contacts in the electromagnetic contactor are in contact with the corresponding fixed contacts) (zero) bolts.

As described above, when the first terminal cylinder 61 and the second terminal cylinder 62 are in contact with the power source side terminals 211, 212, 213 and the load side terminals 214, 215, 216 of the electromagnetic contactor 200 (Closed state) of the electromagnetic contactor 200 in the off state (the open state in which the movable contact in the electromagnetic contactor is disconnected from the corresponding fixed contact), for example, Will be described.

The control signal is applied to the control signal terminal of the electromagnetic contactor 200 (two terminals provided on the electromagnetic contactor separately from the power source side and the load side terminal) to turn the electromagnetic contactor 200 on .

When the electromagnetic contactor 200 is off, there is no signal waveform for each channel when the electromagnetic contactor 200 is in an on state (closed state) The voltage waveform of the power source 37 is displayed for each of the plurality of contactors 200 and thus the operating time of the electromagnetic contactor 200 from the on state to the on state (closed state) can be measured.

In the off state of the electromagnetic contactor 200 in the state in which the electromagnetic contactor 200 is in an on state (a closed state in which the movable contact in the electromagnetic contactor is in contact with the corresponding fixed contact) An open state in which the movable contact in the contactor is separated from the corresponding fixed contact).

The application of the control signal to the control signal terminal of the electromagnetic contactor 200 (the two terminals provided on the electromagnetic contactor separately from the power source side and the load side terminal) is stopped and the electromagnetic contactor 200 is turned off ).

Then, when the electromagnetic contactor 200 is turned off, a voltage signal waveform of, for example, 5 volts of the power source 37 is displayed for each channel on the screen of the test equipment 300, and the electromagnetic contactor 200 is turned off, The voltage waveform of the power source 37 drops to zero volts for each channel at the instant of operation of the electromagnetic contactor 200 in the state of the open state (open state) Can be measured.

As described above, in the apparatus for testing an electromagnetic contactor according to the present invention, the first terminal cylinder and the second terminal cylinder of the lifting terminal connecting rod are operated to be lowered to connect the power source side and the load side terminal of the electromagnetic contactor, By connecting the exposed terminal of the test equipment with the probe of the test equipment, it is possible to test the effect of the electromagnetic contactor without the need of wiring and to easily connect the probe of the test equipment.

10: horizontal base part 11: fixed supporting part
20: vertical base part 21: rack gear part
30: Lift /
31, 32, 33: first test equipment connection terminal portion
34, 35, 36: Second test equipment connection terminal part
37: Power supply
40: operating wheel 41: shaft
50: pinion gear 61: first terminal cylinder
62: second terminal cylinder
70a and 70b:
100: Test apparatus 200: Magnetic contactor
210: Terminal cover
211, 212, 213: power side terminal
214, 215, 216: load side terminal
300: Test equipment

Claims (7)

In an apparatus for testing an electromagnetic contactor,
A horizontal base portion for providing a means for mounting the magnetic contactor to be tested;
A vertical base coupled to the horizontal base; And
A plurality of test cylinder connection terminals connected to the vertical base portion so as to be able to move up and down along the vertical base portion and having a plurality of terminal cylinders connectable with the terminals of the electromagnetic contactor and a connection conductor portion connectable to external test equipment, And a lifting / lowering terminal connecting portion having an upper portion and a lowering portion. The method according to claim 1,
Further comprising an elevation drive mechanism capable of driving the elevation terminal connection board to move up and down. 3. The method of claim 2,
The elevation drive mechanism includes:
A rack gear portion provided along the vertical direction to the vertical base portion;
A pinion gear capable of moving up and down with a gear teeth engaged with the rack gear portion;
An operating wheel (WHEEL) coaxially connected to rotate the pinion gear; And
And a connection mechanism for transmitting the driving force of the pinion gear to the elevation terminal connection block. The method of claim 3,
The connection mechanism includes:
And a connection pillar extending from the elevation terminal connection to a lower portion and having a through hole allowing the shaft of the pinion gear to penetrate and rotate. The method according to claim 1,
Further comprising a power supply for supplying power to the terminal cylinder and the test equipment connection terminal unit, the power supply being provided in the elevator terminal connection base. The method according to claim 1,
Wherein the test equipment connection terminal portion comprises a semicircular terminal portion in which a conductor is exposed. The method according to claim 1,
Wherein the horizontal base portion is provided with at least one fixed support portion protruding upward from the upper surface of the horizontal base portion so as to prevent the movement of the electromagnetic contactor during the test.

KR1020150029294A 2015-03-02 2015-03-02 Test apparatus of magnetic contactor KR20160106411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150029294A KR20160106411A (en) 2015-03-02 2015-03-02 Test apparatus of magnetic contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150029294A KR20160106411A (en) 2015-03-02 2015-03-02 Test apparatus of magnetic contactor

Publications (1)

Publication Number Publication Date
KR20160106411A true KR20160106411A (en) 2016-09-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113625165A (en) * 2021-08-12 2021-11-09 嘉善求新精密机电股份有限公司 Electromagnetic switch performance detection equipment and detection method thereof
CN115656801A (en) * 2022-11-01 2023-01-31 东营市沃格艾迪石油技术有限公司 Prevent shaking electric contactor production with on-line detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113625165A (en) * 2021-08-12 2021-11-09 嘉善求新精密机电股份有限公司 Electromagnetic switch performance detection equipment and detection method thereof
CN115656801A (en) * 2022-11-01 2023-01-31 东营市沃格艾迪石油技术有限公司 Prevent shaking electric contactor production with on-line detection device

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